Best Sustainability Tech Companies in New Hampshire, United States
The 33 best Sustainability Tech companies in New Hampshire, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Powerspan.
Our analysis of 84 Sustainability Tech companies
$19.4b in tracked funding; 85% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Sustainability Tech companies in New Hampshire
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Powerspan Provider of the carbon management platform | $189M | 210 mo ago | Deadpooled | Frank Alix ex-Founder | 1994 | — | 51 patents CO2 capture absorption media and Raman spectroscopy monitoring for carbonate/bicarbonate systems | — |
| 2 | GT Advanced Technologies Manufactures equipment for solar, LED, and consumer electronics | $122M | 161 mo ago | Acquired | Greg Knight President & CEO | 1994 | — | 35 patents Uniformly doped silicon single-crystal growth via advanced Czochralski processes | — |
| 3 | Regrow AI-powered platform for resilient agriculture, emissions reduction, and supply chain sustainability 76Tech top 20%Moat top 22%Funding top 25%Growth top 31% All 11 signals ▾Techtop 20% Moattop 22% Fundingtop 25% Growthtop 31% AItop 35% Innovationtop 40% Producttop 49% Talentbottom 49% Marketbottom 48% Globalbottom 39% Newsbottom 21% Tech: 41 technologies across 6/8 capability areas · Cloud: Amazon S3, Amazon Web Services Moat: Editorial + unicorn rating 8/10 · Soonicorn rank vs industry peers · Fliar Intelligence Index 76/100 | $61M | 19 mo ago | Series B | Anastasia Volkova Co-Founder & CEO | 2016 | WebflowGSAPLenis+21 | — | — |
| 4 | Celdara Medical Developer of therapeutics for the treatment of multiple diseases 21Funding top 30%Talent bottom 49%Tech bottom 38%Global bottom 32% All 6 signals ▾Fundingtop 30% Talentbottom 49% Techbottom 38% Globalbottom 32% Marketbottom 28% Newsbottom 22% Funding: Raised $46.5M across 37 rounds · 37 rounds over 17 yrs (2.2/yr) Talent: 1 named leader on record · 1 C-suite/founder profile curated rank vs industry peers · Fliar Intelligence Index 21/100 | $46M | 16 mo ago | Funding Raised | Jake Reder CEO | 2008 | — | — | — |
| 5 | New Hampshire Housing Provider of financing and support for affordable housing solutions | $31M | 19 mo ago | Funding Raised | — | 1981 | WordPressPleskBugHerd+30 | — | — |
| 6 | CairnSurgical Developer of 3D printed surgical guides for breast cancer treatment | $8M | 26 mo ago | Series A | Venkat Krishnaswamy Co-Founder and Chief Technology Officer | 2015 | — | 18 patents Surgical navigation and imaging support devices for precise tissue treatment and removal | — |
| 7 | Degree Controls Offers airflow and thermal management solutions | $7M | 178 mo ago | Acquired | — | 1997 | Cart FunctionalityWordPressMySQL+26 | 14 patents Adaptive HVAC and airflow management for energy-efficient building climate control | — |
| 8 | Terragia Technology solution for generation of biofuels | $6M | 31 mo ago | Seed | Bill Brady Co-Founder | 2014 | Cart FunctionalitySquarespace CommerceSquarespace+8 | — | — |
| 9 | PurposeEnergy Provider of organic waste processing systems and sustainable solutions for businesses | $4M | 102 mo ago | Acquired | — | 2007 | BreakdanceWordPressMySQL+23 | 10 patents Patents concentrated in chemistry & materials | — |
| 10 | Amcombi bioscience Specialty biotech company focused on developing vaccines | $4M | 78 mo ago | Deadpooled | Charles Jones Co-Founder | 2015 | — | — | — |
| 11 | Saureus Developer of point-of-care device to detect pathogens | $1M | 140 mo ago | Funding Raised | George Newcomb Co-Founder & CEO | 2009 | — | 7 patents Rapid detection and identification of bacterial pathogens, especially C. difficile toxins | — |
| 12 | Triterpenoid Therapeutics Developer of therapeutic solutions for the treatment of multiple health disorders | $930K | 73 mo ago | Funding Raised | Michael B Sporn Founder | 2018 | — | — | — |
Top 12 Sustainability Tech companies in New Hampshire
#1
Funding Raised · Lebanon, New Hampshire · founded 2008 · 16 employees$46.5Mraised▾
Developer of therapeutics for the treatment of multiple diseases. The company is developing therapeutic antibodies, polymeric prodrugs, and cell therapies for the treatment of infectious diseases, rare diseases, and oncology indications.
- Jun 2025Grant (prize money)$653.1K
- Mar 2025Grant (prize money)$2.9M
- Feb 2025Grant (prize money)$2.3M
- Jan 2025Grant (prize money)$285.7K
#2
Series B · Durham, New Hampshire · founded 2016 · 103 employees$60.7Mraised▾
AI-powered platform for resilient agriculture, emissions reduction, and supply chain sustainability. This is a technology company offering a climate action platform that empowers organizations to achieve sustainability goals through regenerative agriculture. The platform provides sustainability insights, rigorous scope 3 analysis, and actionable carbon reduction plans. It delivers measurable, reportable, and verifiable (MRV) progress against sustainability commitments. The company utilizes artificial intelligence (AI) and remote sensing to trace emissions, plan high-ROI sustainability investments, and report sustainability progress. It supports various sectors, including consumer goods, retail, agribusiness, and the public sector, enabling them to build resilient supply chains, meet sustainable commodity demands, and generate certified carbon assets. The platform helps turn sustainability commitments into audit-ready results, facilitating credible impact reporting and claims. It is a B2B SaaS platform.
- Mar 2025Series B—
- Jul 2023Series B—
- May 2022Series B$38M
- Aug 2021Series A$17M
#3
Funding Raised · Bedford, New Hampshire · founded 1981 · 120 employees$30.8Mraised▾
Provider of financing and support for affordable housing solutions. It offers programs for homeownership and rental assistance, including financing for developers of affordable housing and support for property owners. Services encompass various aspects of housing development, from pre-development loans to asset management and compliance support. The organization also provides resources and information for homeowners, renters, and landlords. It facilitates access to government programs and funding opportunities related to affordable housing.
- Mar 2025Grant (prize money)$276.3K
- Jan 2025Grant (prize money)$12.8M
- May 2012Grant (prize money)$2.5M
- May 2012Grant (prize money)$2.5M
#4
Series A · Lebanon, New Hampshire · founded 2015$7.8Mraised▾
Developer of 3D printed surgical guides for breast cancer treatment. The company's proprietary Breast Cancer Locator System is a 3D-printed surgical guide to reduce positive margins during breast cancer tumor removal. It uses Visualizer to provide information regarding tumor size, shape, and margin boundary to assist surgeons in the excision of cancer and preserve normal breast tissue.
- Aug 2024Series A$4.5M
- Aug 2020Grant (prize money)$2M
- Dec 2019Series A$3.3M
- Sep 2018Grant (prize money)$2.2M
#5
Seed · Hanover, New Hampshire · founded 2014$6Mraised▾
Technology solution for generation of biofuels. It provides technology to convert lignocellulose to ethanol and other products to be used as fuels and fuel precursors.
- Mar 2024Seed$6M
- Aug 2023Grant (prize money)$256K
#6
Deadpooled · Portsmouth, New Hampshire · founded 1994 · 33 employees$189Mraised▾
Provider of the carbon management platform. It offers solutions such as multi-pollutant control and carbon dioxide capture technology for electric power plants.
- Apr 2009Series D$50M
- Mar 2009Series D$2M
- Jul 2008Series D$51.6M
- Nov 2005Conventional Debt$9.4M
#7
Acquired · Merrimack, New Hampshire · founded 1994 · 2 employees$122Mraised▾
GT Advanced Technologies provides polysilicon production technology, and sapphire & silicon crystalline growth systems and materials for the solar, LED and other industrial markets. The company's manufacturing equipment and services support the growth of the Solar and LED industries. Company has claimed to showcase their new product line in SnEC 2018 Power Expo. New product line includes tube filaments, which increases the productivity of Siemens CVD process and Continuity CZ Feeder which increase the productivity o silicon ingots.
- May 2013Post IPO$50.2M
- Aug 2010Post IPO$33.5M
- Aug 2009Grant (prize money)$371K
- Series A$38M
#8
Deadpooled · Amherst, New Hampshire · founded 2015 · 5 employees$3.7Mraised▾
Abcombi bio is a preclinical stage biotechnology company engaged in developing vaccines using its proprietary technology platform. The company is focused on three core areas: vaccination against highly variable pathogens (e.g., influenza and Streptococcus pneumoniae), single-shot vaccine consolidation, and global vaccine accessibility.
- Apr 2020Grant (prize money)$2.5M
- Aug 2018Grant (prize money)$300K
- Dec 2016Grant (prize money)$225K
- Jul 2016Grant (prize money)$349.9K
#9
Acquired · Pelham, New Hampshire · founded 2007 · 16 employees$4.3Mraised▾
Provider of organic waste processing systems and sustainable solutions for businesses. The company designs, builds, and operates waste stream solutions for food and beverage production environments. Its technology features a bioreactor designed to process and reclaim organic waste. The company also offers consulting and facilities management services.
- Apr 2018Conventional Debt$404.3K
- Dec 2013Seed$600K
- Dec 2013Conventional Debt—
- Feb 2012Seed$652K
#10
Acquired · Milford, New Hampshire · founded 1997 · 40 employees$7.2Mraised▾
Offers airflow and thermal management solutions, air flow sensors, and electronics cooling designs for data centers and other temperature-controlled facilities. Its products are air velocity sensors, R&D sensors, instruments, airflow monitors, thermal controllers, and environment data logging software. Its products are predominantly used in the automotive, aerospace, and HVAC industries.
- Dec 2011Series A$2.5M
- Dec 2005Series A$2.4M
- Oct 2003Unattributed$1.4M
- Jul 2002Convertible Debt$986.8K
#11
Funding Raised · Lebanon, New Hampshire · founded 2018$930.2Kraised▾
Developer of therapeutic solutions for the treatment of multiple health disorders. The company has developed a drug candidate CDDO-2P-IM for the treatment of multiple myeloma with proteosome & other inhibitors, glioblastoma & Covid-19. It also provides the drug CDDO-3P-IM that provides solutions for treating autoimmunity diseases.
- Sep 2020Grant (prize money)$399.9K
- Sep 2020Grant (prize money)$530.3K
#12
Funding Raised · Lebanon, New Hampshire · founded 2009$1.5Mraised▾
Developer of point-of-care device to detect pathogens
- Mar 2015Grant (prize money)$264.9K
- Jun 2011Grant (prize money)$600K
- Jun 2011Grant (prize money)$600K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Sustainability Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Climate Adaptation is moving in the United States
A read on the academic research around Climate Adaptation — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 1,953 United States-affiliated papers.
- Columbia University52
- University of North Carolina at Chapel Hill43
- Arizona State University42
- Texas A&M University42
- Purdue University West Lafayette35
- Flood myth4→56
- Climate change6→47
- Flooding (psychology)2→23
- Climate resilience1→16
- Flood mitigation2→14
- Flood myth50→178
- Climate change35→155
- Flooding (psychology)18→97
- Resilience (materials science)10→84
- Psychological resilience12→55
- Climate change71→449
- Resilience (materials science)17→139
- Flood myth36→158
- Psychological resilience13→115
- Climate resilience14→92
Where climate adaptation 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 climate adaptation patents in the United States
United States climate adaptation patent filing is cooling — 28 filings from 19 assignees (2016–2025), led by ILC Dover, Garcia Rogerio, Serralta Denset; annual filings 6→1.
- ILC Dover20
- Garcia Rogerio4
- Serralta Denset4
- Zesty AI2
- Yodock GUY1
- Mckee TONY RAY1
- Ballard Tristan1
- Cooper Matthew1
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.