Radar · Energy Tech in Massachusetts
Best Energy Tech Companies in Massachusetts, United States
The 295 best Energy Tech companies in Massachusetts, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Nexamp.
By Rohit KhannaTrends & Stories
295companies tracked
$9.7Bdisclosed funding
3unicorns
166have raised
FLIAR INTELLIGENCE · ENERGY TECH × MASSACHUSETTS
Our analysis of 79 Energy Tech companies
$38.9b in tracked funding; 92% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
79companies analysed
92%cloud-native stacks
2025funding peak (by rounds)
12unicorns
2015median founding year
520kcombined LinkedIn audience
30%of audience held by top 3
9companies hiring publicly (12 mo)
Ranked: Best Energy Tech companies in Massachusetts
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Nexamp 🦄 Provider of community solar programs and energy solutions for businesses 76Funding top 12%Tech top 23%Moat top 23%Talent top 35% All 8 signals ▾Fundingtop 12% Techtop 23% Moattop 23% Talenttop 35% Markettop 38% Growthtop 43% Globalbottom 39% Newsbottom 38% Funding: Raised $1.3B across 12 rounds · 12 rounds over 16 yrs (0.8/yr) Tech: 42 technologies across 6/8 capability areas · Cloud: Cloudflare rank vs industry peers · Fliar Intelligence Index 76/100 | $1.3B | 1 mo ago | Series E | 331 331 → 589 (+78%) · sector median -10% | Zaid Ashai CEO | — | 1 award |
| 2 | Form Energy Clean energy technology platform developing long-duration iron-air battery systems 83Patents top 11%Funding top 15%Innovation top 16%Moat top 26% All 12 signals ▾Patentstop 11% Fundingtop 15% Innovationtop 16% Moattop 26% Producttop 28% Growthtop 31% Partnerstop 31% Talenttop 34% Newstop 36% Markettop 37% Techtop 44% Globalbottom 44% Patents: 358 patents matched (strict assignee match) · 302 filings since 2022 vs 54 in 2017-21 Funding: Raised $1.1B across 9 rounds · 9 rounds over 8 yrs (1.1/yr) rank vs industry peers · Fliar Intelligence Index 83/100 | $1.1B | 17 mo ago | Series F | 372 372 → 850 (+128%) · sector median -10% | Ted Wiley Co-Founder + President & COO | 358 patents Low-cost metal‑air batteries and iron‑based electrochemical production systems | 1 job opening |
| 3 | Ascend Elements 🦄 Manufacturer of engineered materials from recycled lithium-ion batteries and battery scrap 80Funding top 13%Innovation top 21%Patents top 22%News top 24% All 11 signals ▾Fundingtop 13% Innovationtop 21% Patentstop 22% Newstop 24% Moattop 25% Growthtop 27% Talenttop 38% Markettop 42% Techbottom 48% Partnersbottom 43% Globalbottom 42% Funding: Raised $1.0B across 10 rounds · 10 rounds over 4 yrs (2.5/yr) Innovation: 98 patents (top 28% of patent-holders) · 98 filings since 2022 vs 0 in 2017-21 rank vs industry peers · Fliar Intelligence Index 80/100 | $1.0B | 15 mo ago | Series D | 87 87 → 148 (+70%) · sector median -10% | Yan Wang Co-Founder | 98 patents Recycling and purification of battery metals and graphite for Li‑ion and NiMH batteries | — |
| 4 | Boston Power Provider of lithium-ion battery | $627M | 136 mo ago | Series G | 10 | Christina Lampe Ex- Co-Founder | 193 patents Advanced lithium‑ion battery modules, safety controls, and cell‑balancing systems | — |
| 5 | 24m Technologies 🦄 Developer of battery technology for electric vehicles and energy storage 69Funding top 18%Moat top 22%Growth top 26%Patents top 32% All 10 signals ▾Fundingtop 18% Moattop 22% Growthtop 26% Patentstop 32% Talenttop 38% Innovationtop 39% Techtop 49% Markettop 50% Globalbottom 44% Newsbottom 21% Funding: Raised $500M across 13 rounds · 13 rounds over 16 yrs (0.8/yr) Moat: Editorial + unicorn rating 9/10 · IP moat: 288 patents rank vs industry peers · Fliar Intelligence Index 69/100 | $500M | 12 mo ago | Series H | 147 147 → 89 (-39%) · sector median -10% | Yet Chiang Co-Founder & Chief Scientist | 288 patents Patents concentrated in electrical & electronics | — |
| 6 | SES Technologies Developer of Li-Metal batteries and AI-powered battery management solutions | $324M | 40 mo ago | Public | 300 300 → 171 (-43%) · sector median -10% | — | — | 1 launch · 1 award |
| 7 | Superpedestrian Saas and AI-enabled platform offering predictive maintenence solutions for micromobility operators | $283M | 52 mo ago | Series C | 415 | — | 70 patents Smart electric micro‑mobility vehicle control, data analytics, and security systems | — |
| 8 | Factorial Energy Developer of sustainable solid-state batteries 60Funding top 24%Talent top 28%Moat top 31%Growth top 35% All 8 signals ▾Fundingtop 24% Talenttop 28% Moattop 31% Growthtop 35% Techbottom 48% Newsbottom 47% Marketbottom 45% Globalbottom 39% Funding: Raised $244M across 7 rounds · 7 rounds over 12 yrs (0.6/yr) Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 60/100 | $244M | 5 mo ago | Series D | 175 | Hector Abruna Co-Founder | — | 1 launch · 1 partnership |
| 9 | Ambri Manufacturer of liquid metal battery systems for grid energy storage | $219M | 22 mo ago | Series D | 141 | David Bradwell Chief Executive Officer | 114 patents Liquid metal battery technology for grid-scale high-temperature energy storage | — |
| 10 | Sense Smart energy platform providing real-time electricity usage insights for homes and utilities 60Patents top 21%Funding top 23%Customers top 26%Moat top 26% All 12 signals ▾Patentstop 21% Fundingtop 23% Customerstop 26% Moattop 26% Innovationtop 27% Producttop 33% Talenttop 33% Techtop 36% Growthtop 37% Globaltop 50% Marketbottom 40% Fin. healthbottom 17% Patents: 114 patents matched (strict assignee match) · 60 filings since 2022 vs 44 in 2017-21 Funding: Raised $195M across 5 rounds · 5 rounds over 11 yrs (0.5/yr) rank vs industry peers · Fliar Intelligence Index 60/100 | $195M | 4 mo ago | Series D | 120 120 → 106 (-12%) · sector median -10% | Mike Phillips Co-founder | 114 patents Smart power metering and event analytics for device identification in intelligent grids | 1 award |
| 11 | WiTricity Magnetic resonance-based wireless charging solutions for electric vehicles | $146M | 48 mo ago | Series G | 48 48 → 42 (-12%) · sector median -10% | Marin Soljacic Co-Founder & Board Member | 952 patents Wireless resonant power transfer systems and positioning for bidirectional EV charging | 1 launch |
| 12 | CubicPV Manufacturer of solar PV modules | $137M | 13 mo ago | Series C | 71 | — | 184 patents Perovskite solar cell materials, coatings, and scalable thin‑film manufacturing. | — |
| 13 | Alsym Energy Provider of non-flammable battery solutions | $104M | 28 mo ago | Series B | 39 | Kripa Varanasi Co-Founder | — | 1 launch · 2 partnerships |
| 14 | Malta Developer of long-duration energy storage systems using steam-based heat pump 64Innovation top 16%Patents top 17%Moat top 19%Funding top 28% All 10 signals ▾Innovationtop 16% Patentstop 17% Moattop 19% Fundingtop 28% Growthtop 45% Techtop 46% Talentbottom 49% Marketbottom 46% Globalbottom 45% Newsbottom 22% Innovation: 272 patents (top 18% of patent-holders) · 184 filings since 2022 vs 88 in 2017-21 Patents: 272 patents matched (strict assignee match) · 184 filings since 2022 vs 88 in 2017-21 rank vs industry peers · Fliar Intelligence Index 64/100 | $98M | 5 mo ago | Series B | 266 | Michael Geyer Managing Director | 272 patents Thermal energy storage systems integrating pumped heat with power plants and district heating | — |
| 15 | REGENT Craft Developer of wing-in-ground technology-based electric sea gliders | $94M | 23 mo ago | Series A | 45 | Michael Klinker Co-Founder and CTO | 50 patents Advanced hydrofoil and winglet control systems for marine and aerial craft | 1 internship · 1 expansion · 1 award |
| 16 | SparkCharge Provider of charging solutions for electric vehicles 64Funding top 19%Innovation top 25%Moat top 28%Patents top 30% All 11 signals ▾Fundingtop 19% Innovationtop 25% Moattop 28% Patentstop 30% Growthtop 38% Techtop 47% Talentbottom 49% Productbottom 47% Marketbottom 45% Globalbottom 37% Newsbottom 18% Funding: Raised $91.5M across 13 rounds · 13 rounds over 9 yrs (1.4/yr) Innovation: 36 patents (top 38% of patent-holders) · 26 filings since 2022 vs 10 in 2017-21 rank vs industry peers · Fliar Intelligence Index 64/100 | $92M | 12 mo ago | Series A | 50 50 → 40 (-20%) · sector median -10% | Joshua Aviv Founder/CEO | 36 patents Modular fast-charging and battery-swap infrastructure for electric vehicles | — |
| 17 | Upstart Power Offering solutions for solid oxide fuel generators 50Funding top 20%Product top 21%Moat top 21%Patents top 34% All 10 signals ▾Fundingtop 20% Producttop 21% Moattop 21% Patentstop 34% Innovationtop 35% Talenttop 38% Techtop 50% Globalbottom 43% Marketbottom 31% Newsbottom 27% Funding: Raised $56.6M across 8 rounds · 8 rounds over 9 yrs (0.9/yr) Product: 12 distinct product lines · Company stage: Series D rank vs industry peers · Fliar Intelligence Index 50/100 | $57M | 8 mo ago | Series D | 35 | Nate Palumbo Chief Technology Officer and Founder | 46 patents Patents concentrated in electrical & electronics | — |
| 18 | Indigo In-wheel motor for electric and autonomous vehicle 57Patents top 20%Funding top 22%Innovation top 24%Growth top 35% All 9 signals ▾Patentstop 20% Fundingtop 22% Innovationtop 24% Growthtop 35% Moattop 35% Talenttop 38% Techtop 46% Globalbottom 44% Marketbottom 22% Patents: 355 patents matched (strict assignee match) · 152 filings since 2022 vs 185 in 2017-21 Funding: Raised $54.0M across 1 rounds · 1 rounds over 2 yrs (0.5/yr) rank vs industry peers · Fliar Intelligence Index 57/100 | $54M | 13 mo ago | Series B | 3 | Ian Hunter Founder | 355 patents Biological crop enhancers and AI-driven farm management technologies for precision agriculture | — |
| 19 | Nanoramic Provider of nanotech based electrode materials for supercapacitors 72Growth top 17%Funding top 19%Patents top 26%Moat top 28% All 10 signals ▾Growthtop 17% Fundingtop 19% Patentstop 26% Moattop 28% Talenttop 28% Innovationtop 31% Newstop 34% Marketbottom 47% Globalbottom 40% Techbottom 33% Growth: Headcount 39 → 66 (+69%) across vintages · Fresh capital in last 24 mo Funding: Raised $49.6M across 24 rounds · 24 rounds over 16 yrs (1.5/yr) rank vs industry peers · Fliar Intelligence Index 72/100 | $50M | 7 mo ago | Series E | 66 66 → 50 (-24%) · sector median -10% | John Cooley Founder & CEO | 36 patents Advanced electrode materials and hydrophilic binders for high-performance rechargeable batteries | — |
| 20 | enVerid Provider of energy-saving HVAC solutions for heating, ventilating, and air conditioning systems | $49M | 37 mo ago | Series B | 31 | Christian Weeks Chief Executive Officer | — | — |
| 21 | Nuvera Developer of hydrogen fuel cell engines and power generation systems | $38M | 13 mo ago | Funding Raised | 102 102 → 94 (-8%) · sector median -10% | — | — | 1 launch · 2 partnerships |
| 22 | Kuva Systems Provider of continuous monitoring solutions for methane and VOC emissions | $35M | 23 mo ago | Series A | 16 | Jason Bylsma Co-Founder & Chief Engineer | — | — |
| 23 | Pure Lithium Developer of lithium metal battery technology using a vanadium cathode | $29M | 15 mo ago | Series A | 39 | Emilie Bodoin Co-Founder & CEO | 77 patents Lithium metal anodes and advanced rechargeable battery technologies | 1 award |
| 24 | XL Batteries Organic flow energy storage solution | $28M | 10 mo ago | Seed | — | Zack Strater Co-Founder | 58 patents Dry electrode manufacturing, powder coating, and crossover reduction for redox flow batteries | — |
| 25 | Raptor Maps Provider of solar asset management platform using aerial and sensor data 57AI top 15%Funding top 32%Growth top 32%Talent top 34% All 12 signals ▾AItop 15% Fundingtop 32% Growthtop 32% Talenttop 34% Producttop 40% Moattop 41% Techbottom 49% Marketbottom 41% Globalbottom 39% Innovationbottom 33% Patentsbottom 31% Newsbottom 21% AI: Holds AI/ML patents (G06N-family CPC) Funding: Raised $27.5M across 6 rounds · 6 rounds over 11 yrs (0.5/yr) rank vs industry peers · Fliar Intelligence Index 57/100 | $28M | 18 mo ago | Series C | 64 | Edward Obropta Co-Founder & CTO | 4 patents UAV‑based remote sensing and edge computing for precision agriculture crop monitoring | — |
| 26 | SYSO Technologies Provider of renewable energy storage and management solutions 35Funding top 36%Talent top 38%Moat top 39%Market bottom 40% All 5 signals ▾Fundingtop 36% Talenttop 38% Moattop 39% Marketbottom 40% Globalbottom 29% Funding: Raised $24.5M across 5 rounds · 5 rounds over 5 yrs (1.0/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 35/100 | $24M | 5 mo ago | Series B | 22 22 → 44 (+100%) · sector median -10% | Christopher Gosline Co-Founder & CEO | — | — |
| 27 | VIA Developer of Web3 solutions that protect data against theft, misuse | $20M | 16 mo ago | Series B | 50 | Colin Gounden Co-Founder & CEO | — | 2 job openings · 1 partnership |
| 28 | Adden Energy Provider of solutions for solid state batteries | $20M | 21 mo ago | Series A | 6 | William Fitzhugh Co-Founder & CEO | — | — |
| 29 | REsurety Provider of risk management solutions to improve the profitability of wind power | $19M | 20 mo ago | Series C | 58 58 → 76 (+31%) · sector median -10% | — | 2 patents Calculating locational marginal emissions for electricity grid market analytics | — |
| 30 | Fourth Power Energy storage solutions for grid | $19M | 9 mo ago | Series A | — | Asegun Henry Founder & Chief Technical Officer | — | 1 internship |
| 31 | Lydian Labs Developer of technology to recycle CO2 emissions into carbon-neutral fuels | $18M | 5 mo ago | Series A | — | Joe Rodden Co-Founder & CEO | 25 patents Modular electrically heated reactors for endothermic chemical synthesis and catalytic processes. | — |
| 32 | Addisenergy Developer of a subsurface process for producing ammonia from iron resources 27Talent top 23%Funding top 30%Global bottom 33%Market bottom 30% All 5 signals ▾Talenttop 23% Fundingtop 30% Globalbottom 33% Marketbottom 30% Techbottom 25% Talent: 8 named leaders on record · 7 C-suite/founder profiles curated Funding: Raised $17.2M across 3 rounds · 3 rounds over 1 yrs (3.0/yr) rank vs industry peers · Fliar Intelligence Index 27/100 | $17M | 7 mo ago | Seed | — | Iwnetim Abate Co-Founder & Chief Scientific Officer | — | — |
| 33 | Feon Energy Provider of lithium battery technology solution | $14M | 23 mo ago | Seed | 8 | Wenxiao Huang Co-Founder & CEO | — | 1 partnership |
| 34 | Transaera Developer of advanced heat pump systems for dehumidifying, cooling, and heating | $13M | 19 mo ago | Seed | 12 | Matthew Dorson Co-Founder & CTO | 16 patents Patents concentrated in mechanical & energy engineering | 2 job openings |
| 35 | Eden GeoPower Geothermal micro energy generation technology developers | $13M | 14 mo ago | Seed | 20 | — | 30 patents Electrically enhanced in‑situ mining, fracturing, and hydrogen‑production rock stimulation | — |
| 36 | AeroShield Provider of insulated window panes 27Funding top 28%Talent top 28%Moat top 39%Tech bottom 44% All 6 signals ▾Fundingtop 28% Talenttop 28% Moattop 39% Techbottom 44% Globalbottom 29% Marketbottom 22% Funding: Raised $12.0M across 9 rounds · 9 rounds over 6 yrs (1.5/yr) Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 27/100 | $12M | 9 mo ago | Series A | 10 | Kyle Wilke Cofounder and CTO | — | — |
| 37 | Maglev Aero Developer of e-VTOL aircraft | $12M | 16 mo ago | Series B | 24 | — | 50 patents Patents concentrated in transport & manufacturing processes | — |
| 38 | Vertical Semiconductor Developer of vertical GaN technology for power electronics applications | $11M | 8 mo ago | Seed | — | Josh Perozek CTO & Co-Founder | — | 1 expansion · 1 award |
| 39 | Amplified Industries AI-driven platform offering solutions for the optimization of oilfield assets | $10M | 15 mo ago | Series B | 21 | Charles Clerget Co-Founder | — | — |
| 40 | Sunwealth Clean energy investment and crowdfunding platform | $10M | 17 mo ago | Series A | 34 34 → 28 (-18%) · sector median -10% | Jon Abe CEO & Founder | — | 1 job opening · 1 award |
| 41 | Active Surfaces Developer of ultra-thin, lightweight, flexible, low-cost solar cells. 16Talent top 38%Funding top 43%Moat bottom 38%Global bottom 36% All 6 signals ▾Talenttop 38% Fundingtop 43% Moatbottom 38% Globalbottom 36% Newsbottom 22% Marketbottom 21% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Funding: Raised $9.7M across 3 rounds · 3 rounds over 3 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 16/100 | $10M | 12 mo ago | Seed | 2 | Shiv Bhakta Co-Founder | — | — |
| 42 | Luminous Robotics Developer of automated solar panel installation equipment | $8M | 10 mo ago | Series A | — | Jay Wong Founder & CEO | — | — |
| 43 | Triton Anchor Developer of anchoring solutions for floating offshore wind and marine energy | $8M | 9 mo ago | Seed | 6 | Ross Haghighat CEO | — | — |
| 44 | Ekotrope Tech-enabled service provider for energy-efficient building, green politics, & construction 32Growth top 35%Product top 36%Talent bottom 49%Tech bottom 48% All 10 signals ▾Growthtop 35% Producttop 36% Talentbottom 49% Techbottom 48% Fundingbottom 47% Innovationbottom 43% Moatbottom 42% Patentsbottom 37% Globalbottom 32% Marketbottom 29% Growth: Fresh capital in last 24 mo Product: 7 distinct product lines · Company stage: Series A rank vs industry peers · Fliar Intelligence Index 32/100 | $6M | 8 mo ago | Series A | 17 17 → 36 (+112%) · sector median -10% | Nick Sisler Founder and Director of Engineering | 5 patents Energy management software for green building automation and demand‑side control | 1 job opening · 1 launch |
| 45 | Propexo Ofers a unified API for integration leading property management systems 55Talent top 35%Funding top 45%Global bottom 25% All 3 signals ▾Talenttop 35% Fundingtop 45% Globalbottom 25% Talent: 3 named leaders on record Funding: Raised $5.0M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 55/100 | $5M | 9 mo ago | Series A | — | Remen Okoruwa Co-Founder & CEO | — | 1 launch |
| 46 | Electrified Thermal Developer of novel heat battery for energy storage solutions | $4M | 9 mo ago | Series B | 8 | Joey Kabel Co-Founder / CTO | 19 patents Modular electrically conductive bricks for resistive heating and integrated thermal energy storage | 1 launch |
| 47 | Orb Aerospace Developer of e-VTOL aircrafts | $4M | 10 mo ago | Series A | 15 | — | — | — |
| 48 | Glimpse Battery quality monitoring system | $4M | 17 mo ago | Series A | — | Peter Attia Cofounder and CTO | 3 patents Automated visual content compliance checking for digital images | 1 job opening · 1 launch · 1 expansion |
| 49 | Elementium Provider of battery components | $3M | 11 mo ago | Seed | — | Ju Li Co-Founder | — | 1 launch |
| 50 | XE-6 Tech Manufacturer of portable energy storage bases for survival utility applications | $125K | 4 mo ago | Seed | — | David Wilcox Co-CEO | — | — |
Top 12 Energy Tech companies in Massachusetts
#1
Nexamp 🦄Series E · Boston, Massachusetts · founded 2007 · 331 employees$1.3Braised▾
Nexamp 🦄
Series E · Boston, Massachusetts · founded 2007 · 331 employees
Provider of community solar programs and energy solutions for businesses. It offers community solar subscriptions, enabling savings on electricity costs without rooftop panels. It delivers energy storage solutions and power purchase agreements for commercial users. It also offers community solar programs with no rooftop panels, sign-up fees, or long-term contracts, enabling savings on electricity costs. It focuses on clean energy asset development, customer acquisition, and management, minimizing risk for counterparties.
Fliar Intelligence Index™ 76how this company ranks against its industry peers
Funding
top 12%Tech
top 23%Moat
top 23%Talent
top 35%Market
top 38%Growth
top 43%Funding: Raised $1.3B across 12 rounds · 12 rounds over 16 yrs (0.8/yr) · Last round Conventional Debt (Apr 2026)
Tech: 42 technologies across 6/8 capability areas · Cloud: Cloudflare · Devops: Envoy
Moat: Editorial + unicorn rating 9/10 · Unicorn · 4 curated direct competitors tracked
Audience (LinkedIn): 42k LinkedIn followers — 8.0% of this cohort's audience
Activity (LinkedIn): 1 awards announced in 12 mo
Funding rounds
- Apr 2026Conventional Debt$200M
- Feb 2026Series E$180M
- Mar 2024Series E$520M
- Jun 2023Conventional Debt—
Founders & team
Investors
US Bank, MUFG, Generate Capital, Good Energies, RCG, PJC
Tech stack
Apple Icloud MailAwinBootstrapCloudflareCloudflare Bot ManagementCore-Js
#2
Series D · Woburn, Massachusetts · founded 2013 · 175 employees$244.2Mraised▾
Series D · Woburn, Massachusetts · founded 2013 · 175 employees
Developer of sustainable solid-state batteries. Its various applications, including electric vehicles, homes, and critical infrastructure. Its battery technology is designed to be safe, sustainable, and scalable.
Fliar Intelligence Index™ 60how this company ranks against its industry peers
Funding
top 24%Talent
top 28%Moat
top 31%Growth
top 35%Tech
bottom 48%News
bottom 47%Funding: Raised $244M across 7 rounds · 7 rounds over 12 yrs (0.6/yr) · Last round Series D (Jan 2026)
Talent: 3 named leaders on record · 3 C-suite/founder profiles curated
Moat: Editorial + unicorn rating 8/10 · Soonicorn · 9 curated direct competitors tracked
Audience (LinkedIn): 22k LinkedIn followers — 4.3% of this cohort's audience
Activity (LinkedIn): 1 product launches · 1 partnerships (incl. Melmer-Benz AG EQS, Stellantis Dodge Charger Daytona, Karma Automotive Kaveya, Avidrone Aerospace Incorporated) announced in 12 mo
Funding rounds
- Jan 2026Series D—
- Jan 2022Series D$200M
- Nov 2021Series B—
- Nov 2021Series B—
Founders & team
Investors
Stellantis, Mercedes-Benz, WAVE Equity Partners, Helios Climate Ventures, NXT Ventures, New York State
Tech stack
Amazon Web ServicesAnime.JsApple Icloud MailCloudflareCloudflare Bot ManagementCookieyes
#3
Series D · Cambridge, Massachusetts · founded 2013 · 120 employees$194.6Mraised▾
Series D · Cambridge, Massachusetts · founded 2013 · 120 employees
Smart energy platform providing real-time electricity usage insights for homes and utilities. It uses smart sensors and data analytics to deliver real-time electricity usage insights for homes, utilities, and energy partners. It helps users understand and reduce energy consumption, improve efficiency, and support grid reliability by providing high-resolution monitoring and behavioral energy insights aimed at lowering carbon emissions and accelerating the energy transition.
Fliar Intelligence Index™ 60how this company ranks against its industry peers
Patents
top 21%Funding
top 23%Customers
top 26%Moat
top 26%Innovation
top 27%Product
top 33%Patents: 114 patents matched (strict assignee match) · 60 filings since 2022 vs 44 in 2017-21 · Latest publication 2026
Funding: Raised $195M across 5 rounds · 5 rounds over 11 yrs (0.5/yr) · Last round Series D (Jan 2026)
Customers: Play-Store rating 4.16★ across 1,762 ratings (1 apps) · Review volume +34% in 6 mo · Marquee-customer mentions: top 13% of tracked companies
Audience (LinkedIn): 23k LinkedIn followers — 4.3% of this cohort's audience
Activity (LinkedIn): 1 awards announced in 12 mo
Funding rounds
- Jan 2026Series D—
- Apr 2022Series C$127.6M
- Sep 2021Series B—
- Aug 2019Series B$29.9M
Founders & team
Investors
Blue Earth Capital, Telus, Schneider Electric, Energy Impact Partners, iRobot, Prelude Ventures
Tech stack
Amazon Web ServicesAmplitudeApache Http ServerApple Icloud MailAtlassian StatuspageBootstrap
#4
Series B · Cambridge, Massachusetts · founded 2018 · 266 employees$98.3Mraised▾
Series B · Cambridge, Massachusetts · founded 2018 · 266 employees
Developer of long-duration energy storage systems using steam-based heat pump. The company's solution delivers dispatchable, cost-effective energy through utility-scale systems. The technology allows for integration into existing fossil assets. It provides intraday or interday energy storage with backup firing availability. The systems support grid resilience with synchronous power and load-following capabilities.
Fliar Intelligence Index™ 64how this company ranks against its industry peers
Innovation
top 16%Patents
top 17%Moat
top 19%Funding
top 28%Growth
top 45%Tech
top 46%Innovation: 272 patents (top 18% of patent-holders) · 184 filings since 2022 vs 88 in 2017-21 · Deep-tech classification: Tech Hardware
Patents: 272 patents matched (strict assignee match) · 184 filings since 2022 vs 88 in 2017-21 · Latest publication 2026
Moat: Editorial + unicorn rating 8/10 · IP moat: 272 patents · Soonicorn
Audience (LinkedIn): 25k LinkedIn followers — 4.8% of this cohort's audience
Activity (LinkedIn): 1 partnerships (incl. Acwa) announced in 12 mo
Funding rounds
- Dec 2025Series B$24M
- Nov 2023Series B$21.6M
- Aug 2021Series B—
- Feb 2021Series B$50.7M
Founders & team
Investors
Concord New Energy, Alfa Laval, Breakthrough Energy, Siemens Energy, PROMAN, Chevron Technology Ventures
Tech stack
ComplianzContact Form 7Core-JsElementorElementor Header & Footer BuilderHello Elementor
#5
Series H · Cambridge, Massachusetts · founded 2010 · 147 employees$500Mraised▾
Series H · Cambridge, Massachusetts · founded 2010 · 147 employees
Developer of battery technology for electric vehicles and energy storage. The company provides a suite of technologies designed to improve battery performance. These technologies address challenges related to cost, safety, energy density, and cold-weather performance. The company's products can be used independently or in combination with existing battery solutions.
Fliar Intelligence Index™ 69how this company ranks against its industry peers
Funding
top 18%Moat
top 22%Growth
top 26%Patents
top 32%Talent
top 38%Innovation
top 39%Funding: Raised $500M across 13 rounds · 13 rounds over 16 yrs (0.8/yr) · Last round Grant (prize money) (Jun 2025)
Moat: Editorial + unicorn rating 9/10 · IP moat: 288 patents · Unicorn
Growth: Headcount 86 → 147 (+71%) across vintages · Fresh capital in last 24 mo
Audience (LinkedIn): 21k LinkedIn followers — 3.9% of this cohort's audience
Activity (LinkedIn): 3 product launches announced in 12 mo
Funding rounds
- Jun 2025Grant (prize money)$10.3M
- Mar 2025Grant (prize money)$3.2M
- Sep 2024Series H$87M
- Jan 2022Series F—
Founders & team
Investors
CRV, North Bridge Venture Partners, PTT, DOE, ITOCHU, Kyocera
Tech stack
CloudflareCloudflare Bot ManagementCore-JsFont AwesomeGodaddyGoogle Analytics
#6
Series D · Westborough, Massachusetts · founded 2015 · 87 employees$1Braised▾
Series D · Westborough, Massachusetts · founded 2015 · 87 employees
Manufacturer of engineered materials from recycled lithium-ion batteries and battery scrap. The company utilizes a direct precursor synthesis process to transform discarded batteries and manufacturing scrap into active cathode battery material. This process recovers critical elements for reuse in lithium-ion battery manufacturing. The company provides logistics, material-tracking, and customer support services.
Fliar Intelligence Index™ 80how this company ranks against its industry peers
Funding
top 13%Innovation
top 21%Patents
top 22%News
top 24%Moat
top 25%Growth
top 27%Funding: Raised $1.0B across 10 rounds · 10 rounds over 4 yrs (2.5/yr) · Last round Grant (prize money) (Feb 2025)
Innovation: 98 patents (top 28% of patent-holders) · 98 filings since 2022 vs 0 in 2017-21 · Deep-tech classification: Tech Hardware
Patents: 98 patents matched (strict assignee match) · 98 filings since 2022 vs 0 in 2017-21 · Latest publication 2026
Audience (LinkedIn): 33k LinkedIn followers — 6.3% of this cohort's audience
Funding rounds
- Feb 2025Grant (prize money)—
- Feb 2024Series D$162M
- Sep 2023Series D$460.1M
- Sep 2023Grant (prize money)$480.6M
Founders & team
Investors
DOE, SK Eco Plant, BlackRock, Temasek, Qatar Investment Authority, Tenaska
Tech stack
CloudflareCloudflare Bot ManagementComplianzCore-JsElementorGoogle Analytics
#7
Series F · Somerville, Massachusetts · founded 2009 · 372 employees$1.1Braised▾
Series F · Somerville, Massachusetts · founded 2009 · 372 employees
Clean energy technology platform developing long-duration iron-air battery systems. It develops advanced battery solutions capable of storing electricity for multiple days, helping balance energy supply and demand during periods of high stress or renewable energy intermittency. It is designed to support the transition to a cleaner and more resilient electric grid by enabling greater integration of renewable energy sources such as wind and solar. Its technology centers on cost-effective, scalable battery systems built for long-duration storage applications, addressing critical gaps in traditional short-duration energy storage solutions.
Fliar Intelligence Index™ 83how this company ranks against its industry peers
Patents
top 11%Funding
top 15%Innovation
top 16%Moat
top 26%Product
top 28%Growth
top 31%Patents: 358 patents matched (strict assignee match) · 302 filings since 2022 vs 54 in 2017-21 · Latest publication 2026
Funding: Raised $1.1B across 9 rounds · 9 rounds over 8 yrs (1.1/yr) · Last round Series F (Jan 2025)
Innovation: 358 patents (top 7% of patent-holders) · 302 filings since 2022 vs 54 in 2017-21 · 2 product lines
Audience (LinkedIn): 81k LinkedIn followers — 15.6% of this cohort's audience · 138 engagements/post (3.5× cohort median)
Hiring (LinkedIn): 1 hiring post in 12 mo (public) · hiring: engineers
Funding rounds
- Jan 2026Series F—
- Oct 2024Series F$405M
- Aug 2023Grant (prize money)$12M
- Sep 2022Series E$450M
Founders & team
Investors
ARPA-E, Coatue, Energy Impact Partners, Temasek, NGP Energy Technology Partners, Prelude Ventures
Tech stack
AccessibeApple Icloud MailCloudflareCloudflare Bot ManagementCookieyesCore-Js
#8
Series E · Boston, Massachusetts · founded 2009 · 66 employees$49.6Mraised▾
Series E · Boston, Massachusetts · founded 2009 · 66 employees
Provider of nanotech based electrode materials for supercapacitors. It offers nanotech-enabled electrodes, ultracapacitors, and thermal interface gap filler pads for electric vehicle batteries. Its features include low cost, high cell-level energy density, fast charging performance, thermal interface gap filler and roll-to-roll coating, and calendering equipment.
Fliar Intelligence Index™ 72how this company ranks against its industry peers
Growth
top 17%Funding
top 19%Patents
top 26%Moat
top 28%Talent
top 28%Innovation
top 31%Growth: Headcount 39 → 66 (+69%) across vintages · Fresh capital in last 24 mo
Funding: Raised $49.6M across 24 rounds · 24 rounds over 16 yrs (1.5/yr) · Last round Series E (Nov 2025)
Patents: 36 patents matched (strict assignee match) · 36 filings since 2022 vs 0 in 2017-21 · Latest publication 2026
Audience (LinkedIn): 5k LinkedIn followers
Activity (LinkedIn): 1 product launches · 1 partnerships (incl. Top Material) announced in 12 mo
Funding rounds
- Nov 2025Series E$54M
- Sep 2025Series D—
- Apr 2025Grant (prize money)$47.5M
- Jan 2025Grant (prize money)$47.5M
Founders & team
Investors
Fortistar, GM Ventures, Marubun, Niterra, Catalus Capital, Samsung Venture Investment
Tech stack
Hubspot Cms HubHubspotJqueryCloudflare Bot ManagementGoogle Font ApiGlide.Js
#9
Series D · Boston, Massachusetts · founded 2017 · 35 employees$56.6Mraised▾
Series D · Boston, Massachusetts · founded 2017 · 35 employees
Offering solutions for solid oxide fuel generators. It aims to replace internal combustion engines for backup and off-grid applications.
Fliar Intelligence Index™ 50how this company ranks against its industry peers
Funding
top 20%Product
top 21%Moat
top 21%Patents
top 34%Innovation
top 35%Talent
top 38%Funding: Raised $56.6M across 8 rounds · 8 rounds over 9 yrs (0.9/yr) · Last round Series D (Sep 2025)
Product: 12 distinct product lines · Company stage: Series D
Moat: Editorial + unicorn rating 8/10 · IP moat: 46 patents · Soonicorn
Funding rounds
- Sep 2025Series D$306.6K
- Dec 2024Series D$2.1M
- Jul 2024Series D$22.5M
- Nov 2022Series C$17M
Founders & team
Investors
ITOCHU, Enphase Energy, Sunnova, Rogers Capital, H+ Partners, Cricetus Felix Ventures
Tech stack
ElementorFramer SitesGodaddyGoogle AnalyticsGoogle Font ApiHsts
#10
Series B · Cambridge, Massachusetts · founded 2019 · 22 employees$24.5Mraised▾
Series B · Cambridge, Massachusetts · founded 2019 · 22 employees
Provider of renewable energy storage and management solutions. It offers the SYSO Technology Platform - which is used to manage equipment, market data & weather data, and SYSO Technology Server - which provides installation and data security solutions.
Fliar Intelligence Index™ 35how this company ranks against its industry peers
Funding
top 36%Talent
top 38%Moat
top 39%Market
bottom 40%Global
bottom 29%Funding: Raised $24.5M across 5 rounds · 5 rounds over 5 yrs (1.0/yr) · Last round Series B (Dec 2025)
Talent: 2 named leaders on record · 2 C-suite/founder profiles curated
Moat: Editorial + unicorn rating 7/10 · 9 curated direct competitors tracked
Audience (LinkedIn): 2k LinkedIn followers
Funding rounds
- Dec 2025Series B$7M
- Jul 2024Series B$14.5M
- Oct 2022Series A$10M
- Apr 2022Seed$2M
Founders & team
Investors
Lacuna Sustainable Investments, Kimmeridge, Masscec, Kimmeridge Energy
#11
Series C · Bedford, Massachusetts · founded 2021 · 71 employees$137Mraised▾
Series C · Bedford, Massachusetts · founded 2021 · 71 employees
Manufacturer of solar PV modules
LinkedIn Pulse recent public activity · Jul 2026
Audience: 5k LinkedIn followers
Activity: 1 awards announced in 12 mo
Funding rounds
- May 2025Grant (prize money)$5.4M
- Apr 2025Grant (prize money)$2.5M
- Jun 2023Series C$103M
- Jul 2022Series B$9M
Investors
Hunt Energy Enterprises, First Solar, Breakthrough Energy, North Bridge Venture Partners, Polaris Partners, SCG
#12
Series A · Cambridge, Massachusetts · founded 2021$18Mraised▾
Series A · Cambridge, Massachusetts · founded 2021
Developer of technology to recycle CO2 emissions into carbon-neutral fuels. The company focuses on creating sustainable aviation fuels from air, water, and renewable electricity. It aims to decarbonize the aviation industry by producing fuel with lifecycle emissions reductions. The company has produced its first fuel product and successfully commissioned its pilot demonstration.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 16k LinkedIn followers — 3.0% of this cohort's audience
Activity: 1 awards announced in 12 mo
Funding rounds
- Dec 2025Series A$43.7M
- Nov 2023Grant (prize money)$274K
- Sep 2023Seed$15M
- Jun 2022Seed$3M
Founders & team
Investors
Congruent Ventures, Galvanize Climate Solutions, Grok Ventures, Voyager, Union Square Ventures, Overture
Funding & investor landscape
$9.7Btotal disclosed funding
157companies funded
680disclosed rounds
1rounds last 90 days
Most active investors
Techstars9 rounds
Notable founders
Zaid Ashai
CEO · Nexamp
Hector Abruna
Co-Founder · Factorial Energy
Siyu Huang
Co-Founder and CEO · Factorial Energy
Mike Phillips
Co-founder · Sense
Ryan Houlette
SVP Engineering & Technology / Cofounder · Sense
Michael Geyer
Managing Director · Malta
Yet Chiang
Co-Founder & Chief Scientist · 24m Technologies
Naoki Ota
President & CEO · 24m Technologies
Yan Wang
Co-Founder · Ascend Elements
Eric Gratz
Co-Founder & CTO · Ascend Elements
Ted Wiley
Co-Founder + President & COO · Form Energy
William Woodford
Co-Founder & CTO · Form Energy
Prism market signals · United States · country-scoped Prism corpus, 2,119,908 docs
Market landscape — 10 sub-themes by coverage
Share of Energy Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
RESEARCH IN MASSACHUSETTS · Energy
How research on Energy Storage in Massachusetts is moving
A read on the academic research around Energy Storage in Massachusetts — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 166 papers.
MIT and UMass institutions lead Massachusetts energy-storage research, dominated by advanced battery materials and technologies, with a cautiously optimistic tone (mean stance 0.45) skewed toward breakthroughs.
166 papers · stance +0.45 · 39% breakthrough · 25% concern
top institutions
- Massachusetts Institute of Technology124
- University of Massachusetts Lowell15
- University of Massachusetts Amherst14
- University of Massachusetts Dartmouth11
- Emmanuel College - Massachusetts3
leading researchers
Fikile R. Brushett · Bertrand J. Neyhouse · Nicholas J. Matteucci · Ertan Ağar · Caiwei Shen · Shabdiki B. Chaurasia
prism intelligence · tone & topics
95% positive · 1% critical tone
BusinessEnvironmentTransportationMaterials ScienceSustainabilityAutomotive
▲
Breakthroughs59 · 36%
▼ 50%→33% share
▼0.7× share momentum5 median citations69% since 2021mostly methods-led
Anode and Faraday-efficiency research newly emerged with 12 combined papers, signaling fresh electrochemical optimization focus.
rising sub-themes (early→recent)
- Electrolyte4→12
- Battery (electricity)5→11
- Electrode2→7
- Electrochemistry4→7
- Redox3→5
Newly emergingAnode 0→8 · Faraday efficiency 0→4 · Dissolution 0→4
Landmark Observation of Pseudocapacitive Effect and Fast Ion Diffusion in Bimetallic Sulfides as an Advanced Sodium‐Ion Battery A · 531 cites
◆
Advancements53 · 32%
▲ 18%→36% share
▲2.0× share momentum2 median citations87% since 2021mostly empirical
Renewable-energy integration newly entered advancements at 12 papers, while Battery advancements surged 1→10.
rising sub-themes (early→recent)
- Battery (electricity)1→10
- Cathode1→3
- Electrochemistry3→5
- Process engineering1→3
Newly emergingRenewable energy 0→12 · Electrolyte 0→10 · Redox 0→8
Landmark Pathways to low-cost electrochemical energy storage: a comparison of aqueous and nonaqueous flow batteries · 717 cites
▼
Concerns38 · 23%
▲ 18%→25% share
▲1.4× share momentum1 median citations82% since 2021mostly empirical
Flow-battery and Electrochemistry concerns both newly emerged at 10 papers each, flagging rising reliability scrutiny.
rising sub-themes (early→recent)
- Electrolyte1→12
- Battery (electricity)2→10
Newly emergingElectrochemistry 0→10 · Flow battery 0→10 · Redox 0→8
Landmark Electrode Materials for Rechargeable Sodium‐Ion Batteries: Potential Alternatives to Current Lithium‐Ion Batteries · 3,318 cites
Common questions
How many Energy Tech companies are there in Massachusetts, United States?
Radar tracks 295 indexable Energy Tech companies headquartered in Massachusetts, United States that meet our profile-completeness bar.
What is the total funding raised by Energy Tech companies in Massachusetts, United States?
The Energy Tech companies in Massachusetts, United States on this list have raised a combined $9.7B in disclosed equity funding across 157 funded companies.
Which is the highest-funded Energy Tech company in Massachusetts, United States?
Nexamp is the highest-funded Energy Tech company in Massachusetts, United States, with $1.3B in disclosed equity funding.
How many Energy Tech companies in Massachusetts, United States are funded?
157 of the 295 Energy Tech companies in Massachusetts, United States on this list have disclosed at least one equity funding round.
How many Energy Tech unicorns are there in Massachusetts, United States?
3 Energy Tech companies in Massachusetts, United States on this list are valued at $1B or more.
Who are the top investors in Massachusetts, United States Energy Tech companies?
The most active investors in Massachusetts, United States Energy Tech companies on this list include Greentown Labs, OSTI, Masscec, Clean Energy Venture Group, DOE.
Rohit KhannaTrends & Stories
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.