Best Energy Companies in New Hampshire, United States
The 43 best Energy companies in New Hampshire, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Mascoma.
Our analysis of 171 Energy companies
$71.4b in tracked funding; 82% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Energy companies in New Hampshire
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Mascoma Technology provider for Bioethanol | $138M | 162 mo ago | Acquired | Lee Lynd Co-Founder & Director | 2005 | — | 178 patents Engineered microbes for lignocellulosic biofuel and chemical production via metabolic pathways | — |
| 2 | FlexEnergy Manufacturer of clean energy gas turbine power solutions 29Growth top 30%Patents top 41%Moat top 45%Funding top 47% All 9 signals ▾Growthtop 30% Patentstop 41% Moattop 45% Fundingtop 47% Innovationbottom 47% Techbottom 45% Globalbottom 36% Newsbottom 24% Marketbottom 20% Growth: Web rank 50,000,000 → 10,000,000 YoY Patents: 49 patents matched (strict assignee match) · 1 filings since 2022 vs 10 in 2017-21 rank vs industry peers · Fliar Intelligence Index 29/100 | $28M | 165 mo ago | Series D | — | 2004 | WordPressApple iCloud MailMicrosoft 365+15 | 49 patents Design and manufacturing of tube‑fin and counter‑flow heat exchangers for thermal systems | 1 job opening |
| 3 | Brayton Energy R&D firm innovating sustainable energy through turbomachinery and gas turbine systems 22Growth top 48%Funding bottom 43%Tech bottom 42%Market bottom 34% All 5 signals ▾Growthtop 48% Fundingbottom 43% Techbottom 42% Marketbottom 34% Globalbottom 30% Growth: Headcount 46 → 47 (+2%) across vintages · Fresh capital in last 24 mo Funding: Raised $13.4M across 9 rounds · 9 rounds over 18 yrs (0.5/yr) rank vs industry peers · Fliar Intelligence Index 22/100 | $13M | 15 mo ago | Funding Raised | — | 2004 | WordPressPleskMySQL+19 | — | — |
| 4 | Wood Pellets Manufacturer of branded pharmaceutical products and provider of third-party manufacturing services | $11M | 203 mo ago | Series B | David Nydam CEO | 2006 | Microsoft ASP.NETcore-jsjQuery+6 | — | — |
| 5 | ICRTec Gas turbine powered back-up generator | $10M | 165 mo ago | Deadpooled | Frank Trotter President & CEO | 2009 | — | — | — |
| 6 | Froling Energy Biomass heating solutions: installation, service, and fuel for sustainable energy | $300K | 124 mo ago | Funding Raised | — | 2002 | — | — | — |
| 7 | New England Wood Pellet Designer and manufacturer of high-end architectural lighting solutions | — | 143 mo ago | Acquired | Mark Wilson CEO & President | 1992 | WordPressMySQLPHP+17 | — | — |
| 8 | Sprague Supplier of energy products and related services | — | 155 mo ago | Acquired | Dave Glendon President & CEO | 1870 | WordPressApple iCloud MailMicrosoft 365+15 | — | — |
Top 8 Energy companies in New Hampshire
#1
Funding Raised · Hampton, New Hampshire · founded 2004 · 47 employees$13.4Mraised▾
R&D firm innovating sustainable energy through turbomachinery and gas turbine systems. Specializing in design, prototyping, and testing, the company focuses on environmentally responsible energy production. Core competencies include aerodynamics, thermodynamics, heat transfer, and combustion. They develop advanced energy systems like concentrated solar power, biomass power, gas turbines, and heat exchangers. Capabilities extend to prototyping, manufacturing, laboratory testing, and computational analysis. The company designs and tests turbomachinery and gas turbine systems for renewable energy, propulsion, and combustion applications. They offer innovative problem-solving for challenging technical issues in the energy sector, holding intellectual property in turbomachinery, gas turbines, combustion systems, and high-temperature heat exchangers.
- May 2025Grant (prize money)$1.9M
- May 2025Grant (prize money)$5M
- Jun 2014Grant (prize money)$1.6M
- Sep 2010Grant (prize money)$1.3M
#2
Acquired · Lebanon, New Hampshire · founded 2005 · 547 employees$137.5Mraised▾
Mascoma manufactures advacned bioconversion products. The company is developing products and applications that enable the efficient and sustainable production of fuels and chemicals from biomass sources.Their key products TransFerm and TransFerm Yield+ bioengineered yeast products are widely used in the corn ethanol industry which lowers the costs for fuel ethanol producers by alleviating the need to purchase a significant amount of the glucoamylase (GA) enzymes.
- Feb 2013Series C$2.1M
- Jun 2012Series C$5M
- Aug 2011Series C$6.9M
- Jan 2011Series C$5M
#3
Series D · Portsmouth, New Hampshire · founded 2004 · 3 employees$28.2Mraised▾
Manufacturer of clean energy gas turbine power solutions. These solutions are designed for reliable, clean energy in off-grid and grid-connected environments. Applications include oilfield electrification, manufacturing, commercial, industrial, and data centers. The company provides modular systems backed by service and rapid response. The turbines produce lower emissions than traditional alternatives and require minimal maintenance. A consultative approach is used to tailor solutions to meet specific operational, financial, and environmental objectives.
- Nov 2012Series D$18.7M
- Jan 2012Series B$5M
- Dec 2011Conventional Debt$9.4M
- Dec 2009Series B$4.5M
#4
Series B · Goffstown, New Hampshire · founded 2006 · 8 employees$11Mraised▾
Manufacturer of branded pharmaceutical products and provider of third-party manufacturing services. It develops, manufactures, and markets a diverse portfolio of pharmaceutical products across various therapeutic segments. The company also offers comprehensive third-party manufacturing services, including support with brand development, product design, regulatory compliance, and international market entry. This includes assistance with documentation, audits, and dossier preparation for export clients. In-house manufacturing capabilities encompass tablets, capsules, ointments, and syrups. The company provides training manuals and testing reports for its products.
- Aug 2009Series B$11M
#5
Deadpooled · Hampton, New Hampshire · founded 2009 · 5 employees$10Mraised▾
ICRTec develops gas based turbines to be used as an alternative to diesel generators. The product supports multiple fuel types, such as diesel, gas and renewable energy. The company claims that the fuel is cleaner burning and more cost effective than the best diesel engines today. It emits less than one-eighth of the NOX/particulate emissions allowed under EPA 2010 regulations with better fuel economy and lower greenhouse gas (GHG) emissions than diesels
- Nov 2012Series A$10M
#6
Funding Raised · Manchester, New Hampshire · founded 2002$300Kraised▾
Biomass heating solutions: installation, service, and fuel for sustainable energy. The company specializes in wood boiler systems, offering comprehensive installation, expert service, and reliable fuel supply. They are a mechanical contractor focused on biomass heating, providing sustainable energy solutions through biomass boilers and wood chip fuel. Their services cater to large commercial, small commercial, and residential applications, promoting green energy alternatives. They offer wood chip production and delivery, ensuring a consistent and dependable fuel source for their heating systems. The company is committed to providing efficient and environmentally friendly heating solutions.
- Apr 2016Grant (prize money)$300K
#7
Acquired · Jaffrey, New Hampshire · founded 1992 · 51 employees—raised▾
Designer and manufacturer of high-end architectural lighting solutions. It designs and manufactures lighting fixtures for diverse applications, including corporate, retail, residential, and hospitality spaces. The company utilizes cutting-edge technology and a meticulous design process, focusing on minimalism and clean lines. Its products are manufactured in-house, ensuring precision and attention to detail. Services extend to post-sales support and on-site customization. The firm collaborates with architects and interior designers to create bespoke lighting solutions.
#8
Acquired · Portsmouth, New Hampshire · founded 1870 · 655 employees—raised▾
Supplier of energy products and related services. It provides natural gas, fuel, electricity, and materials handling services to commercial, industrial, and government clients. The company offers customized energy solutions tailored to individual customer needs, including pricing programs and market intelligence. Services also encompass online tools for pricing and order management. A focus on sustainability is demonstrated through initiatives like solar energy and renewable fuels.
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Energy coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
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.
- Electric Power Research Institute204
- Pacific Northwest National Laboratory202
- Argonne National Laboratory193
- Northeastern University151
- Massachusetts Institute of Technology124
- Battery (electricity)57→359
- Electrolyte37→318
- Electrochemistry30→240
- Cathode32→224
- Anode37→209
- Renewable energy40→492
- Battery (electricity)59→507
- Power (physics)8→227
- Electrolyte27→244
- Electrochemistry37→240
- Battery (electricity)35→184
- Renewable energy24→156
- Electrolyte13→114
- Electrochemistry10→80
- Cathode9→72
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.
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.
- General Electric592
- ESS Technology276
- GM Global TECH Operations233
- Fastcap Systems205
- UNIV California180
- Rondo Energy157
- United Technologies154
- Battelle Memorial Institute146
Common questions
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.