Radar · Energy Tech in San Jose
Best Energy Tech Companies in San Jose, United States
The 68 best Energy Tech companies in San Jose, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Archer.
By Riya SenguptaFinancials
68companies tracked
$5.2Bdisclosed funding
1unicorns
38have raised
FLIAR INTELLIGENCE · ENERGY TECH × SAN JOSE
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
566kcombined LinkedIn audience
71%of audience held by top 3
3companies hiring publicly (12 mo)
Ranked: Best Energy Tech companies in San Jose
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Archer 🦄 Developer of electric vertical takeoff and landing aircraft for commercial use 67Funding top 18%Partners top 21%Growth top 24%Tech top 25% All 12 signals ▾Fundingtop 18% Partnerstop 21% Growthtop 24% Techtop 25% Innovationtop 28% Moattop 31% Producttop 32% Newstop 34% Markettop 47% Globalbottom 46% Talentbottom 40% Fin. healthbottom 26% Funding: Raised $1.5B across 5 rounds · 5 rounds over 3 yrs (1.7/yr) Partners: 3 partnership announcements in 12 mo (6 in 24 mo) · 15 contract events in 12 mo rank vs industry peers · Fliar Intelligence Index 67/100 | $1.5B | 6 mo ago | 424 | Brett Adcock Co-Founder | PrismicApple iCloud MailNode.js+19 | Top 5M | — | 1 job opening |
| 2 | QuantumScape Developer of solid-state lithium-metal battery technology for electric vehicle applications | $1.0B | 69 mo ago | 850 850 → 672 (-21%) | Timothy Holme Co-Founder & CTO | DrupalApple iCloud MailPHP+28 | Top 5M | 285 patents Solid-state lithium‑ion batteries: garnet electrolytes, sulfide electrodes, thermal management. | 1 partnership |
| 3 | Bloom Energy Provider of solid oxide fuel cell technology | $973M | 70 mo ago | 376 | K Sridhar Founder & CEO | WordPressApple iCloud MailMySQL+28 | Top 1M | 1,657 patents Advanced solid‑oxide fuel cell and electrolyzer stack designs for efficient power generation | 1 partnership |
| 4 | Lyten Provider of lithium sulphur ion batteries 76Patents top 11%Funding top 20%Innovation top 24%Growth top 24% All 12 signals ▾Patentstop 11% Fundingtop 20% Innovationtop 24% Growthtop 24% Newstop 25% Talenttop 28% Moattop 35% Producttop 36% Partnerstop 41% Markettop 49% Techbottom 46% Globalbottom 42% Patents: 703 patents matched (strict assignee match) · 495 filings since 2022 vs 208 in 2017-21 Funding: Raised $410M across 4 rounds · 4 rounds over 3 yrs (1.3/yr) rank vs industry peers · Fliar Intelligence Index 76/100 | $410M | 10 mo ago | 219 219 → 464 (+112%) | William Wraith Co-Founder | WordPressApple iCloud MailMicrosoft 365+23 | Top 5M | 703 patents Graphene-based sensors, RF resonant detection, and lithium‑sulfur battery materials | 1 launch · 1 award |
| 5 | Ensurge Developer of energy storage solutions for wearable devices 50Funding top 15%News top 30%Growth top 34%Tech top 37% All 9 signals ▾Fundingtop 15% Newstop 30% Growthtop 34% Techtop 37% Globaltop 48% Talentbottom 49% Fin. healthbottom 46% Marketbottom 28% Moatbottom 24% Funding: Raised $349M across 24 rounds · 24 rounds over 4 yrs (6.0/yr) News: 6 BI events in 12 mo (of 16 tracked, 6 types) · +100% YoY rank vs industry peers · Fliar Intelligence Index 50/100 | $349M | 11 mo ago | 39 39 → 64 (+64%) | Lars Eikeland CEO | Milestone CMSSite Search 360Microsoft ASP.NET+16 | Top 10M | — | 1 partnership |
| 6 | SoloPower Provider of flexible thin-film photovoltaic cells | $273M | 164 mo ago | 24 | — | — | — | 248 patents Thin‑film photovoltaic manufacturing, roll‑to‑roll processing, and building‑integrated solar modules | — |
| 7 | Frore Systems Developer of thermal management solutions for data centers and electronic devices 72Innovation top 16%Patents top 17%Funding top 18%Moat top 33% All 10 signals ▾Innovationtop 16% Patentstop 17% Fundingtop 18% Moattop 33% Newstop 34% Growthtop 35% Talenttop 38% Marketbottom 48% Techbottom 42% Globalbottom 40% Innovation: 194 patents (top 16% of patent-holders) · 163 filings since 2022 vs 31 in 2017-21 Patents: 194 patents matched (strict assignee match) · 163 filings since 2022 vs 31 in 2017-21 rank vs industry peers · Fliar Intelligence Index 72/100 | $190M | 3 mo ago | 75 | Suryaprakash Ganti Co-Founder & CTO | WebflowVimeoreCAPTCHA+12 | Top 5M | 194 patents MEMS-enabled active cooling and thermal management for LED and electronic devices | — |
| 8 | Stion Manufactures solar modules | $90M | 107 mo ago | 5 | — | — | — | 301 patents Large-scale CIGS thin-film solar cell manufacturing equipment and processing methods. | — |
| 9 | Sakuu Provider of AI-enabled desktop 3D battery printers for automotive applications | $68M | 34 mo ago | 63 | Robert Bagheri Co-Founder & CEO | SentryNode.jsUbuntu+12 | Top 10M | 133 patents Advanced powder-based additive manufacturing and hybrid solid-state battery technologies | 1 award |
| 10 | Enpower Greentech Online platform offering energy storage solution | $35M | 47 mo ago | 127 | Xin Zhang Co-Founder | StatamicPHPLaravel+10 | Top 50M | 10 patents Advanced electrolyte membranes and discharge‑profile control for alkali‑metal rechargeable batteries, including aircraft hybrid pa | 1 award |
| 11 | Fat Spaniel Provider of solutions for renewable energy monitoring | $33M | 198 mo ago | 15 | — | — | — | 35 patents Remote commissioning, performance optimization, and predictive maintenance for renewable energy assets | — |
| 12 | Merlin Solar Manufacturers of solar modules 55Product top 26%Funding top 27%Tech top 27%Growth top 35% All 10 signals ▾Producttop 26% Fundingtop 27% Techtop 27% Growthtop 35% Patentstop 43% Moattop 43% Innovationtop 50% Talentbottom 49% Globalbottom 40% Marketbottom 38% Product: 11 distinct product lines · Company stage: Acquired Funding: Raised $31.0M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 55/100 | $31M | 6 mo ago | 62 | Venkatesan Murali Founder | Wix eCommerceWixSentry+13 | Top 50M | 79 patents Metallic component manufacturing, surface blackening, and bonding for photovoltaic modules | — |
| 13 | Wrightspeed Developer of powertrain system for electric vehicles | $29M | 81 mo ago | 25 | — | — | — | 23 patents Advanced electric vehicle powertrain management, wheel drive, and dynamics control systems | — |
| 14 | FranklinWH Manufacturer of home energy management and battery storage solutions | $25M | 34 mo ago | 54 | Cheung Lam Co-Founder | Node.jsElement UIVideoJS+23 | Top 1M | — | — |
| 15 | LED Engin LED emitters, light engines and lenses | $23M | 170 mo ago | 30 | — | — | — | — | — |
| 16 | Xangati Data center environment analytics and performance monitoring platform | $22M | 151 mo ago | 23 | — | — | — | 15 patents Advanced network traffic monitoring, anomaly detection, and flow processing for telecom infrastructure. | — |
| 17 | Amberflo Cloud-based invoicing and billing solution for businesses | $20M | 41 mo ago | 27 | Puneet Gupta Co-Founder & CEO | — | — | — | — |
| 18 | EoCell Developer of materials for high energy density lithium-ion batteries | $20M | 85 mo ago | 30 | — | — | — | 6 patents Advanced lithium‑ion battery electrode nanocomposites and quantum‑simulation performance modeling | — |
| 19 | Cassatt Data center automation software | $15M | 243 mo ago | 2 | — | — | — | 49 patents Autonomic resource orchestration and management for distributed computing systems | — |
| 20 | Dwelo A smart apartment management solution for managers and residents | $14M | 64 mo ago | 49 | — | Craft CMSPHPYii+12 | Top 5M | 8 patents Smart‑home device rights management and automated control transition systems | — |
| 21 | EnerTalk Solution for power consumption monitoring | $13M | 106 mo ago | 1 | John Choe Founder & CEO | Node.jsNginxExpress+3 | Top 50M | — | — |
| 22 | Join Cloud-based maintenance management software for owners and property managers | $10M | 74 mo ago | 10 | Karl May Co-Founder & CEO | — | — | 3 patents AI-driven recommendation engines and automated structural design generation using machine learning | 1 award |
| 23 | Roviero Provider of AI-based robots for e-vehicle charging | $7M | 63 mo ago | 6 | — | — | — | 6 patents Patents concentrated in computing, sensing & instrumentation | — |
| 24 | Energous Provider of RF-based charging solutions | $6M | 101 mo ago | 45 45 → 47 (+4%) | — | DrupalApple iCloud MailPHP+29 | Top 10M | 759 patents Wireless power transfer systems, antenna designs, and safety/communication technologies. | 1 award |
| 25 | BIA Controls Provider of IoT-enabled energy management solutions | $5M | 48 mo ago | 7 | — | — | — | — | — |
| 26 | Pyro-E Smart mobility solutions provider | $550K | 135 mo ago | — | Kevin Lu Co-Founder & President | — | — | 3 patents Patents concentrated in mechanical & energy engineering | — |
| 27 | Cypress Envirosystems IoT retrofit solutions digitizing legacy equipment for smart facilities | $466K | 157 mo ago | 87 | Harry Sim CEO | — | — | 9 patents Advanced HVAC analytics, pneumatic control/energy harvesting, and gauge sensing instrumentation. | — |
| 28 | ZutaCore Provider of waterless liquid cooling solutions for artificial intelligence and computing | $397K | 16 mo ago | 48 | Erez Freibach Co-Founder & CEO | HubSpot CMS HubApple iCloud MailGoogle Workspace+20 | Top 5M | — | 2 job openings |
| 29 | Green Light Labs Platform aims to convince users to switch to electric vehicles | $325K | 81 mo ago | — | Samveg Saxena Co-Founder | — | — | — | — |
| 30 | Electrun Online platform offering charging solutions | $200K | 39 mo ago | 5 | Gokmen Kilincarslan Founder & CEO | — | — | — | — |
| 31 | BiaTech Developer of AI solutions for energy operations, including digital twins and field inspection | $200K | 28 mo ago | — | Nathaniel Hartwig Founder and CEO | — | — | 3 patents AI-driven anthropomorphic inspection and monitoring systems for drilling and runway operations | — |
| 32 | ferveret Developer of adaptive phase cooling technology for data center infrastructure | $125K | 36 mo ago | 5 | Reza Azizian Co-Founder & CEO | WebflowCloudflare TurnstileHSTS+12 | Top 50M | 8 patents Thermal management hardware: heat exchangers and cooling systems for electronic devices. | 2 launchs |
Top 12 Energy Tech companies in San Jose
#1
Archer 🦄Public · San Jose, California · founded 2018 · 424 employees$1.5Braised▾
Archer 🦄
Public · San Jose, California · founded 2018 · 424 employees
Developer of electric vertical takeoff and landing aircraft for commercial use. The company focuses on aircraft certification, safety, and defense applications. It provides updates through its newsroom and offers various resources. These resources include information for investors, media, and potential employees.
Fliar Intelligence Index™ 67how this company ranks against its industry peers
Funding
top 18%Partners
top 21%Growth
top 24%Tech
top 25%Innovation
top 28%Moat
top 31%Funding: Raised $1.5B across 5 rounds · 5 rounds over 3 yrs (1.7/yr) · Last round Post IPO (Dec 2025)
Partners: 3 partnership announcements in 12 mo (6 in 24 mo) · 15 contract events in 12 mo · Named contractor/client in 15 deals
Growth: Headcount 164 → 424 (+159%) across vintages · 6 acquisition/expansion moves in 24 mo · Fresh capital in last 24 mo
Audience (LinkedIn): 169k LinkedIn followers — 29.8% of this cohort's audience
Hiring (LinkedIn): 1 hiring post in 12 mo (public) · hiring: Staff GNC Engineer
Funding rounds
- Dec 2025Post IPO—
- Jun 2025Post IPO$850M
- Dec 2024Post IPO$430M
- Aug 2024Post IPO$220M
Founders & team
Investors
United Airlines, Stellantis, Boeing, ARK Investment Management, Wellington, 2PointZero
Tech stack
Amazon Web ServicesAnimate.CssApple Icloud MailBugherdCdnjsCloudflare
#2
Series D · San Jose, California · founded 2018 · 75 employees$190Mraised▾
Series D · San Jose, California · founded 2018 · 75 employees
Developer of thermal management solutions for data centers and electronic devices. The company offers direct-to-chip liquid cooling and solid-state active air cooling products. These cooling solutions are applicable to consumer devices, industrial embedded systems, and data centers. The company's products aim to improve performance and enable compact designs.
Fliar Intelligence Index™ 72how this company ranks against its industry peers
Innovation
top 16%Patents
top 17%Funding
top 18%Moat
top 33%News
top 34%Growth
top 35%Innovation: 194 patents (top 16% of patent-holders) · 163 filings since 2022 vs 31 in 2017-21 · Deep-tech classification: Tech Hardware
Patents: 194 patents matched (strict assignee match) · 163 filings since 2022 vs 31 in 2017-21 · Latest publication 2026
Funding: Raised $190M across 3 rounds · 3 rounds over 8 yrs (0.4/yr) · Last round Series D (Mar 2026)
Audience (LinkedIn): 9k LinkedIn followers
Funding rounds
- Mar 2026Series D$143M
- May 2024Series C$90M
- Dec 2022Series B$100M
- 2018Series A—
Founders & team
Investors
Qualcomm Ventures, Mayfield, Clear Ventures, Addition, Fidelity Investments, Prosperity7 Ventures
Tech stack
CloudflareCloudflare Bot ManagementGoogle Font ApiGoogle Hosted LibrariesHstsHttp/3
#3
Series C · San Jose, California · founded 2015 · 219 employees$410Mraised▾
Series C · San Jose, California · founded 2015 · 219 employees
Provider of lithium sulphur ion batteries. Its products include batteries,composites and sensors. It provides solutions for satellite,aerospace and defence applications.
Fliar Intelligence Index™ 76how this company ranks against its industry peers
Patents
top 11%Funding
top 20%Innovation
top 24%Growth
top 24%News
top 25%Talent
top 28%Patents: 703 patents matched (strict assignee match) · 495 filings since 2022 vs 208 in 2017-21 · Latest publication 2026
Funding: Raised $410M across 4 rounds · 4 rounds over 3 yrs (1.3/yr) · Last round Series C (Jul 2025)
Innovation: 703 patents (top 7% of patent-holders) · 495 filings since 2022 vs 208 in 2017-21 · 2 new-product events in 24 mo
Audience (LinkedIn): 62k LinkedIn followers — 11.0% of this cohort's audience
Activity (LinkedIn): 1 product launches · 1 awards announced in 12 mo
Funding rounds
- Jul 2025Series C$200M
- May 2025Grant (prize money)$3.6M
- Jan 2024Grant (prize money)$4M
- Sep 2023Series B$200M
Founders & team
Investors
Prime Movers Lab, Stellantis, Honeywell, Walbridge, Stellantis Ventures, DOE
Tech stack
Apple Icloud MailCloudflareCloudflare Bot ManagementComplianzDiviGodaddy
#4
Public · San Jose, California · founded 2005 · 39 employees$348.7Mraised▾
Public · San Jose, California · founded 2005 · 39 employees
Developer of energy storage solutions for wearable devices. It provides users with a microbattery manufacturing company that specializes in developing solid-state lithium microbattery technology. The company's innovative technology enables the production of ultra-thin, flexible, and safe energy storage solutions for various applications, including wearable devices and connected sensors.
Fliar Intelligence Index™ 50how this company ranks against its industry peers
Funding
top 15%News
top 30%Growth
top 34%Tech
top 37%Global
top 48%Talent
bottom 49%Funding: Raised $349M across 24 rounds · 24 rounds over 4 yrs (6.0/yr) · Last round Post IPO (Jul 2025)
News: 6 BI events in 12 mo (of 16 tracked, 6 types) · +100% YoY · 1 high-value events (IPO/M&A/funding/contracts) in 12 mo
Growth: Headcount 29 → 39 (+34%) across vintages · Web rank 10,000,000 → 50,000,000 YoY · Fresh capital in last 24 mo
Audience (LinkedIn): 12k LinkedIn followers — 2.2% of this cohort's audience
Activity (LinkedIn): 2 partnerships · 2 awards (incl. Ensurge) announced in 12 mo
Funding rounds
- Jul 2025Post IPO$4.9M
- Apr 2025Post IPO$5.5M
- Feb 2024Post IPO$5.6M
- Oct 2023Post IPO$4.3M
Founders & team
Investors
Invesco Mutual Fund, Ferd, Norwegian Research Council, FlexTech, a SEMI Strategic Association Partner, Europa, Woodford Investment Management
Tech stack
AmpCloudflareCloudflare ZarazCore-JsDatocmsGodaddy
#5
Acquired · San Jose, California · founded 2016 · 62 employees$31Mraised▾
Acquired · San Jose, California · founded 2016 · 62 employees
Manufacturers of solar modules. It provides crystalline silicon-based solar solutions which address deployments such as on metal roofs, auxiliary power for transportation, flush-mounted residential solar, and military applications. It also provides solutions for interconnect system that enables them to extract more power compared to standard solar panels and also improve the reliability performance, and ruggedness of the solar panels.
Fliar Intelligence Index™ 55how this company ranks against its industry peers
Product
top 26%Funding
top 27%Tech
top 27%Growth
top 35%Patents
top 43%Moat
top 43%Product: 11 distinct product lines · Company stage: Acquired
Funding: Raised $31.0M across 2 rounds · 2 rounds over 2 yrs (1.0/yr) · Last round Series B (Dec 2025)
Tech: 40 technologies across 6/8 capability areas · Cloud: Cloudflare, Google Cloud · Devops: Envoy
Audience (LinkedIn): 6k LinkedIn followers
Funding rounds
- Dec 2025Series B$16.1M
- Oct 2024Series B$31M
Founders & team
Investors
Fifth Wall, Saint-Gobain, Ayala, Altos Capital Partners
Tech stack
BootstrapButtonizerCdnjsCloudflareContact Form 7Elementor
#6
Public · San Jose, California · founded 2001 · 376 employees$973.4Mraised▾
Public · San Jose, California · founded 2001 · 376 employees
Provider of solid oxide fuel cell technology. It enables distributed generation of electricity and the production of hydrogen.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 157k LinkedIn followers — 27.8% of this cohort's audience
Activity: 1 partnerships (incl. Bloom Energy and Brookfield) announced in 12 mo
Funding rounds
- Aug 2020Post IPO$230M
- Jan 2015Series H$130M
- Jul 2014Series G—
- May 2013Series G$130M
Founders & team
Investors
Kleiner Perkins, Exelon, UBS, New Enterprise Associates, Alberta, DAG Ventures
Tech stack
Apple Icloud MailCloudflareCloudflare Bot ManagementCookieyesCore-JsDivi
#7
Public · San Jose, California · founded 2010 · 850 employees$1Braised▾
Public · San Jose, California · founded 2010 · 850 employees
Developer of solid-state lithium-metal battery technology for electric vehicle applications. The company focuses on next-generation batteries designed for greater energy density and faster charging. The technology aims to enhance safety to support the transition to a lower carbon future. The company developed an anode-less cell design to deliver high energy density.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 76k LinkedIn followers — 13.4% of this cohort's audience
Activity: 1 partnerships (incl. Hybrid) announced in 12 mo
Funding rounds
- Sep 2020Post IPO$500M
- May 2020Series C—
- Sep 2018Series C$100M
- 2010Series A—
Founders & team
Investors
Fidelity Investments, Prelude Ventures, Lightspeed Venture Partners, Capricorn, Volkswagen Group, BMW
Tech stack
Acquia Cloud PlatformAcquia Cloud Site FactoryAdobe AnalyticsAdobe Experience Platform Identity ServiceAdobe Experience Platform LaunchAmazon Web Services
#8
Series C · San Jose, California · founded 2016 · 63 employees$68Mraised▾
Series C · San Jose, California · founded 2016 · 63 employees
Provider of AI-enabled desktop 3D battery printers for automotive applications. It develops solid-state batteries for diversified applications using additive manufacturing technology. It also offers a platform to design and develop cellphone batteries and automotive components, such as batteries, pathogen detection microreactors, and IoT-based sensors.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 6k LinkedIn followers
Activity: 1 awards announced in 12 mo
Funding rounds
- Aug 2023Series C$6M
- Oct 2021Series C$62M
- Aug 2021Series A—
- Jan 2021Series A$14M
Founders & team
Investors
Musashi Seimitsu Industry, MissionBlue Capital Partners, Candou Ventures, GEX VC, Plug and Play Tech Center, Tessellate Ventures
Tech stack
CloudflareGoogle AnalyticsGsapHttp/3HubspotMicrosoft 365
#9
Seed · San Jose, California · founded 2016 · 48 employees$396.6Kraised▾
Seed · San Jose, California · founded 2016 · 48 employees
Provider of waterless liquid cooling solutions for artificial intelligence and computing. The company’s technology removes heat directly at the processor through a closed-loop system. This approach eliminates water use and reduces energy consumption. It helps data centers scale performance and advance sustainability across digital infrastructure. The company offers end-of-row cooling units that deliver centralized, multi-rack cooling with rack-level monitoring.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 11k LinkedIn followers
Hiring: 2 hiring posts in 12 mo (public) · momentum +2 · hiring: Mechanical R&D Engineer - Thermal R&D, Demand Generation Manager
Funding rounds
- Feb 2025Seed—
- Jun 2024Seed—
- Jan 2024Grant (prize money)$396.6K
- Sep 2023Seed—
Founders & team
Investors
BIRD Foundation, Mitsubishi, Wiwynn, Europa, Carrier, DIVEdigital
Tech stack
Apple Icloud MailCloudflareCloudflare Bot ManagementCore-JsGoogle AnalyticsGoogle Font Api
#10
Series B · San Jose, California · founded 2019 · 54 employees$25Mraised▾
Series B · San Jose, California · founded 2019 · 54 employees
Manufacturer of home energy management and battery storage solutions. The company provides systems designed for uninterrupted power during blackouts or peak demand. The systems manage solar, battery, generator, electric vehicle, and grid power. The company's app allows control, real-time monitoring, and analysis of energy status.
LinkedIn Pulse recent public activity · Jul 2026
Audience: 22k LinkedIn followers — 3.9% of this cohort's audience
Funding rounds
- Aug 2023Series B$25M
- Aug 2022Seed—
- Seed—
Founders & team
Investors
The Mosaic Company, GoodLeap, Peak XV Partners, Particle Future, Qingzhou Capital
Tech stack
Amazon CloudfrontAmazon Web ServicesCloudflareCloudflare Bot ManagementContentsquareCore-Js
#11
Series E · San Jose, California · founded 2005 · 24 employees$272.9Mraised▾
Series E · San Jose, California · founded 2005 · 24 employees
Provider of flexible thin-film photovoltaic cells. It offers high-efficiency, low-cost Copper-Indium-Gallium-Selenide-based devices to enable solar electricity generation at a cost that is competitive with traditional methods.
Funding rounds
- Oct 2012Series E$12M
- Jun 2012Series E$10.8M
- May 2012Series E$7.1M
- Dec 2011Series E$20.1M
Investors
Crosslink Capital, Convexa, Hudson Clean Energy Partners, Firsthand Capital Management, Scatec Innovation, Musea Ventures
#12
Series A · San Jose, California · founded 2020 · 27 employees$20Mraised▾
Series A · San Jose, California · founded 2020 · 27 employees
Cloud-based invoicing and billing solution for businesses
LinkedIn Pulse recent public activity · Jul 2026
Audience: 3k LinkedIn followers
Funding rounds
- Jan 2023Series A$15M
- Seed$5M
Founders & team
Investors
Operator Collective, Norwest, Homebrew, Correlation Ventures
Tech stack
WebflowCloudflareJqueryGoogle Hosted LibrariesGoogle AnalyticsGoogle Font Api
Funding & investor landscape
$5.2Btotal disclosed funding
33companies funded
126disclosed rounds
0rounds last 90 days
Most active investors
Notable founders
Brett Adcock
Co-Founder · Archer
Suryaprakash Ganti
Co-Founder & CTO · Frore Systems
Seshu Madhavapeddy
Co-Founder & CEO · Frore Systems
William Wraith
Co-Founder · Lyten
Scott Mobley
Co-Founder · Lyten
Lars Eikeland
CEO · Ensurge
Venkatesan Murali
Founder · Merlin Solar
K Sridhar
Founder & CEO · Bloom Energy
Maciej Kurzymski
Interim Chief Financial Officer · Bloom Energy
Timothy Holme
Co-Founder & CTO · QuantumScape
Fritz Prinz
Co-Founder · QuantumScape
Robert Bagheri
Co-Founder & CEO · Sakuu
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 SIGNALS · United States
How research on Grid Energy Storage is moving in the United States
A read on the academic research around Grid Energy Storage — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 5,941 United States-affiliated papers.
research sentiment over time
200820172026
enthusiastic · positive · guarded tone
Tone is overwhelmingly optimistic and softening — the enthusiastic (strongly-positive) share moved 60% → 57% across 2008–2026.
top research entities
- Electric Power Research Institute204
- Pacific Northwest National Laboratory202
- Argonne National Laboratory193
- Northeastern University151
- Massachusetts Institute of Technology124
leading researchers
Arumugam Manthiram · Vlachokostas, Alex · Di Wu · Yi Cui · Yury Gogotsi · Wei Wang · Freederia AI Researcher · Guihua Yu
▲
Breakthroughs1,937 · 33%
▼ 34%→32% share
▼0.9× share momentum1 median citations83% since 2021mostly methods-led
Breakthroughs are cooling (34%→32% of field), led by Battery (electricity).
rising sub-themes (early→recent)
- Battery (electricity)57→359
- Electrolyte37→318
- Electrochemistry30→240
- Cathode32→224
- Anode37→209
Newly emergingEnergy (signal processing) 0→87 · Thermal 0→34 · Interphase 0→28
Landmark Challenges and Prospects of Lithium–Sulfur Batteries · 2,319 cites
◆
Advancements2,724 · 46%
▲ 40%→48% share
▲1.2× share momentum1 median citations87% since 2021mostly methods-led
Advancements are rising (40%→48% of field), led by Renewable energy.
rising sub-themes (early→recent)
- Renewable energy40→492
- Battery (electricity)59→507
- Power (physics)8→227
- Electrolyte27→244
- Electrochemistry37→240
Newly emergingNuclear engineering 0→34 · Ionic conductivity 0→30 · Efficient energy use 0→30
Landmark Sodium‐Ion Batteries · 4,393 cites
▼
Concerns798 · 13%
▼ 14%→13% share
▼0.9× share momentum2 median citations80% since 2021mostly reviews
Concerns are cooling (14%→13% of field), led by Battery (electricity).
rising sub-themes (early→recent)
- Battery (electricity)35→184
- Renewable energy24→156
- Electrolyte13→114
- Electrochemistry10→80
- Cathode9→72
Newly emergingDegradation (telecommunications) 0→21 · Sustainable energy 0→20 · Reliability (semiconductor) 0→19
Landmark Pseudocapacitive oxide materials for high-rate electrochemical energy storage · 5,233 cites
RESEARCH HOTSPOTS · United States
Where energy storage is researched across United States
Location clusters by institution affiliation — each city's volume, stance tone, and a quick read on its hot topic, what's advancing, the opening opportunity, and the main concern.
SF Bay Area353 · +0.50
Boston340 · +0.51
Austin119 · +0.42
Atlanta118 · +0.59
Los Angeles108 · +0.58
New York105 · +0.53
Chicago86 · +0.58
San Diego83 · +0.53
Ann Arbor62 · +0.46
Philadelphia61 · +0.47
PATENT SIGNAL · United States
Who's filing energy storage patents in the United States
United States energy storage patent filing is accelerating — 8,522 filings from 3,681 assignees (2016–2025), led by General Electric, ESS Technology, GM Global TECH Operations; annual filings 687→1058.
8,522 filings3,681 assigneespeak 1092/yr2016–2025
filing momentum (YoY 2016–2025)
top patent filers
- General Electric592
- ESS Technology276
- GM Global TECH Operations233
- Fastcap Systems205
- UNIV California180
- Rondo Energy157
- United Technologies154
- Battelle Memorial Institute146
Common questions
How many Energy Tech companies are there in San Jose, United States?
Radar tracks 68 indexable Energy Tech companies headquartered in San Jose, United States that meet our profile-completeness bar.
What is the total funding raised by Energy Tech companies in San Jose, United States?
The Energy Tech companies in San Jose, United States on this list have raised a combined $5.2B in disclosed equity funding across 33 funded companies.
Which is the highest-funded Energy Tech company in San Jose, United States?
Archer is the highest-funded Energy Tech company in San Jose, United States, with $1.5B in disclosed equity funding.
How many Energy Tech companies in San Jose, United States are funded?
33 of the 68 Energy Tech companies in San Jose, United States on this list have disclosed at least one equity funding round.
How many Energy Tech unicorns are there in San Jose, United States?
1 Energy Tech company in San Jose, United States on this list is valued at $1B or more.
Who are the top investors in San Jose, United States Energy Tech companies?
The most active investors in San Jose, United States Energy Tech companies on this list include DOE, OSTI, ATEL Capital Group, Alumni Ventures, California Energy Commission.
Riya SenguptaFinancials
Riya reads income statements for fun. She covers the real money in a sector — revenue, growth, who actually earns — and never met a vague claim she didn't want a number for.