Best Environment Companies in New Hampshire, United States
The 38 best Environment companies in New Hampshire, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Brayton Energy.
Our analysis of 90 Environment companies
$38.2b in tracked funding; 89% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Environment companies in New Hampshire
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 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 | — | — |
| 2 | ICRTec Gas turbine powered back-up generator | $10M | 165 mo ago | Deadpooled | Frank Trotter President & CEO | 2009 | — | — | — |
| 3 | Aquaback Provider of water distillation purifier services | $9M | 113 mo ago | Series A | Bill Zebuhr Founder | 2010 | — | 15 patents Ammonia removal from water and integrated water‑to‑energy processing technologies. | — |
| 4 | Walker Wellington Provider of equipment for water and wastewater municipal and industrial markets | $152K | 179 mo ago | Funding Raised | — | 1986 | — | — | — |
| 5 | Pennichuck Hazardous waste collection and water management company | — | 72 mo ago | Acquired | — | 1852 | WordPress Block EditorWordPressApple iCloud Mail+20 | — | — |
| 6 | Wheelabrator Sustainable waste and recycling solutions for residential and business needs | — | 108 mo ago | Acquired | — | 1975 | — | 54 patents Design and optimization of blast wheel material handling and magnetic separation equipment | — |
| 7 | Wilcoxenv Provider of environmental consulting and remediation services | — | 203 mo ago | Funding Raised | — | 1994 | — | — | — |
| 8 | advanced radon mitigation & water treatment Advanced Radon Mitigation & Water Treatment is a supplier of water softening equipment. | — | — | Private | — | 1993 | — | — | — |
Top 7 Environment 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
Series A · Salem, New Hampshire · founded 2010 · 5 employees$8.7Mraised▾
Provider of water distillation purifier services
- Apr 2017Series A$8M
- Dec 2010Seed$735K
#3
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
#4
Funding Raised · Portsmouth, New Hampshire · founded 1986$151.6Kraised▾
Provider of equipment for water and wastewater municipal and industrial markets. The company supplies chopper pumps, centrifugal screw pumps, and positive displacement pumps. Non-clog pumps, mixing systems, and grit systems are also available. Furthermore, the company offers dewatering and thickening equipment, solar dryers, and waste-to-energy systems. Chemical feed systems are part of the equipment offerings.
- Sep 2011Grant (prize money)$151.6K
#5
Acquired · Merrimack, New Hampshire · founded 1852 · 101 employees—raised▾
Hazardous waste collection and water management company
#6
Acquired · Portsmouth, New Hampshire · founded 1975 · 284 employees—raised▾
Sustainable waste and recycling solutions for residential and business needs. The company offers comprehensive local waste removal and recycling services, focusing on sustainability and environmental responsibility. Services include business and residential waste and recycling, dumpster rentals, roll-off dumpsters, and compactor rentals. They provide specialized waste services for various industries, emphasizing green practices like curb-to-grid waste conversion into renewable power. The company is committed to community engagement, environmental innovation, and safety. They offer resources such as recycling information, sustainability calculators, and community events. The company aims to deliver reliable and responsive service through multiple channels, including phone, email, chat, and text. They provide solutions that streamline operations, save time and money, and reduce waste volume, benefiting both customers and the planet.
#7
Funding Raised · Manchester, New Hampshire · founded 1994 · 42 employees—raised▾
Provider of environmental consulting and remediation services. This includes site assessments (Phase I and II), soil and groundwater analysis, air permitting assistance, data management and GIS services, drone site analysis, and support for insurance claims, dry cleaning businesses, and litigation. The firm offers assistance with impacted property cost recovery. Services are provided to industrial and commercial clients.
- Oct 2009Grant (prize money)—
Funding & investor landscape
Market landscape — 10 sub-themes by coverage
Share of Environment coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
How research on Environmental Monitoring is moving in the United States
A read on the academic research around Environmental Monitoring — which themes are gaining ground, the institutions and researchers driving them, and how the tone is shifting. Based on 3,039 United States-affiliated papers.
- United States Geological Survey157
- Cary Institute of Ecosystem Studies112
- Environmental Protection Agency84
- National Research Council79
- National Park Service76
- Software deployment2→31
- Pollution3→27
- Air quality index1→25
- Water quality10→34
- Air pollution3→25
- Air quality index14→60
- Air pollution8→51
- Pollutant4→32
- Sampling (signal processing)14→42
- Water quality23→48
- Human health1→32
- Pollution4→33
- Air quality index6→31
- Pollutant6→28
- Biodiversity1→22
Where environmental monitoring 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 environmental monitoring patents in the United States
United States environmental monitoring patent filing is accelerating — 450 filings from 343 assignees (2016–2025), led by LEEO, Valencell, United Parcel Service; annual filings 47→49.
- LEEO41
- Valencell25
- United Parcel Service21
- Honeywell INT20
- Apple18
- Venturedyne18
- Pillar TECH17
- IND Scient16
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.