Best Environment Tech Companies in Connecticut, United States
The 41 best Environment Tech companies in Connecticut, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Budderfly.
Our analysis of 83 Environment Tech companies
$16.0b in tracked funding; 90% of the stack-profiled cohort runs cloud-native; funding activity peaked in 2025.
Ranked: Best Environment Tech companies in Connecticut
| # | Company | Disclosed funding | Last round | Stage | Founder | Founded | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Budderfly Provider of energy management solutions and services for buildings 76Innovation top 19%Patents top 19%Funding top 22%Growth top 27% All 11 signals ▾Innovationtop 19% Patentstop 19% Fundingtop 22% Growthtop 27% Newstop 30% Moattop 32% Producttop 33% Techtop 41% Talenttop 41% Marketbottom 49% Globalbottom 36% Innovation: 68 patents (top 23% of patent-holders) · 43 filings since 2022 vs 9 in 2017-21 Patents: 68 patents matched (strict assignee match) · 43 filings since 2022 vs 9 in 2017-21 rank vs industry peers · Fliar Intelligence Index 76/100 | $85M | 5 mo ago | Acquired | Al Subbloie Founder & CEO | 2007 | HubSpot CMS HubApple iCloud MailZoho+29 | 68 patents IoT-enabled energy management and efficiency technologies for industrial/commercial power systems | 2 partnerships |
| 2 | Saphlux Developer of III-V Group-based semiconductor materials 40Talent top 15%Product top 25%Funding top 30%Moat top 32% All 9 signals ▾Talenttop 15% Producttop 25% Fundingtop 30% Moattop 32% Patentstop 38% Innovationtop 40% Techbottom 44% Globalbottom 40% Marketbottom 20% Talent: Analyst team rating 5/5 Product: 6 distinct product lines · Company stage: Series C rank vs industry peers · Fliar Intelligence Index 40/100 | $22M | 4 mo ago | Series C | — | 2014 | Cart FunctionalitySquarespace CommerceSquarespace+13 | 32 patents Patents concentrated in electrical & electronics | 1 partnership |
| 3 | Solais Lighting Manufacturer of smart LED lighting products | $9M | 79 mo ago | Acquired | Samuel Newberry CEO & President | 2008 | WordPressMySQLPHP+37 | 15 patents High‑efficiency LED lighting modules, drivers, and power‑supply conditioning for improved visual performance. | 1 launch |
| 4 | Noteworthy Offering cloud and AI-driven power line inspection solutions | $9M | 34 mo ago | Series A | — | 2020 | — | — | — |
| 5 | Upcycle Technologies Developer of a bio-asset recovery system for wet waste | $6M | 108 mo ago | Series A | John Stringer CEO | 2006 | — | 4 patents Soil bio-nutrient formulations and slow‑release fertilizer technologies for enhanced microbial activity. | — |
| 6 | SRS Provider of a platform for commercial property assessed clean energy programs | $4M | 152 mo ago | Seed | — | 2010 | — | 117 patents Advanced audio signal processing, loudness control, and immersive object‑based streaming solutions | — |
| 7 | Sustainable Real Estate Solutions Software for calculating energy saving as financial impacts | $3M | 167 mo ago | Seed | Brian McCarter CEO | 2010 | — | — | — |
| 8 | Raise Green Developer of a crowdfunding platform for renewable energy and climate solution projects | $2M | 38 mo ago | Seed | Jackie Logan CoFounder | 2011 | — | — | — |
| 9 | CarbonWave Provider of carbon capture solution | $2M | 25 mo ago | Seed | — | — | — | 5 patents Patents concentrated in health & consumer products | — |
| 10 | Enviro Power Online platform offering HVAC monitoring solutions | $2M | 39 mo ago | Series A | — | 2013 | — | — | — |
| 11 | Go Green Global Technologies Provider of water treatment solutions | $1M | 143 mo ago | Deadpooled | Danny Bishop CEO/President | 2009 | — | — | — |
| 12 | Ellington Valley Technologies Developer of next-generation sampling methodologies for environmental applications and air toxics | $910K | 10 mo ago | Seed | David Wilson CEO | 2024 | — | — | — |
| 13 | Skyre Develops and manufactures products for energy and other industries | $380K | 100 mo ago | Seed | Trent M. Molter Founder | 2007 | Cart FunctionalitySquarespace CommerceSquarespace+11 | 74 patents Electrochemical gas separation and production systems for H₂, O₂, and CO₂ | — |
| 14 | USEngineering Solutions USEngineering Solutions Corp. Home Page | $200K | 187 mo ago | Funding Raised | — | 1998 | — | — | — |
| 15 | Meta Carbon Provider of solutions to reduce the carbon footprint | $100K | 50 mo ago | Seed | — | 2021 | — | — | — |
| 16 | Whether Offering AI-based solutions for weather forecasting | $100K | 62 mo ago | Seed | Manos Anagnostou Founder | 2018 | — | — | — |
Top 12 Environment Tech companies in Connecticut
#1
Acquired · Shelton, Connecticut · founded 2007 · 103 employees$84.8Mraised▾
Provider of energy management solutions and services for buildings. It provides integrated light switches to monitor and control lighting loads, advanced power strips to monitor and control plug load at the workstation level, temperature sensors, and electrical panel-level monitoring devices to monitor load at each level and report back to central software. It caters to corporations, municipal governments, colleges, universities, and manufacturers.
- Mar 2026Conventional Debt$550M
- Jun 2025Conventional Debt$100M
- Jan 2024Conventional Debt$400M
- Oct 2020Series B$7.8M
#2
Series C · New Haven, Connecticut · founded 2014 · 3 employees$22Mraised▾
Developer of III-V Group-based semiconductor materials. It provides users with III-V Group-based semiconductor materials for fabricating semiconductor wafers or integrated circuits with a new base material which finds applications in improving LED technology and LED performance. It also provides a chip out which could reduce the cost of manufacturing LED-based lighting by 10 times.
- Apr 2026Series C$43.5M
- Dec 2022Series B$15.8M
- Mar 2017Series A$5M
- Jul 2015Seed$200K
#3
Seed · Broad Brook, Connecticut · founded 2024$910Kraised▾
Developer of next-generation sampling methodologies for environmental applications and air toxics. The company focuses on creating sampling methodologies that can be coupled with analytical measurement technology. Its patent-pending technology enables customers to measure analytes at lower levels than currently achievable.
- Oct 2025Seed$910K
#4
Series A · Stamford, Connecticut · founded 2020 · 5 employees$8.6Mraised▾
Offering cloud and AI-driven power line inspection solutions. Its sensors can be mounted on vehicles for real-time asset inspection. It offers Inspector Edge which uses existing fleet vehicles to inspect and inventory assets in the field, and Inspector Cloud which provides analytics solutions.
- Oct 2023Series A$5.6M
- Jul 2022Seed$3M
- Jun 2021Seed$1.9M
#5
Seed · Bethel, Connecticut$2Mraised▾
Provider of carbon capture solution
#6
Seed · New Haven, Connecticut · founded 2011 · 9 employees$2.2Mraised▾
Developer of a crowdfunding platform for renewable energy and climate solution projects. It provides equity-based crowdfunding platforms where people can invest in oil-and-gas-related ventures. Its features include a list of projects like electric vehicle infrastructure, diesel generator replacements, microgrids, and solar projects.
- Jun 2023Seed$1M
- Oct 2022Seed$1.2M
- 2021Seed$20K
- Feb 2019Grant (prize money)$10K
#7
Acquired · Stamford, Connecticut · founded 2008 · 42 employees$9.4Mraised▾
Manufacturer of smart LED lighting products. Their proprietary technology features Luxiance thermal management and technology which enhances the performance compared to normal LED lighting products. Offers products under two brands SOLARIS which includes track lights, linear wall fixtures, recessed downlights, LED lamps, track systems, and others, and ENERGYLITE which includes roadway lighting, floodlighting, security lighting, billboard lighting, and others. The products are integrated with dimming features and different types of sensors. Solais LED products are used in retail, commercial, museum, and hospitality environments.
- Jan 2020Series B$5.3M
- Nov 2011Series B$1.8M
- Dec 2009Series A$2.3M
- Dec 2009Series A$638K
#8
Series A · Hartford, Connecticut · founded 2013 · 24 employees$1.5Mraised▾
Online platform offering HVAC monitoring solutions. It provides onsite energy storage, backup power, and a boiler. It uses an integrated electric generator in a water boiler.
- May 2023Series A—
- Oct 2019Series A$1.5M
#9
Series A · Ridgefield, Connecticut · founded 2006 · 5 employees$6.3Mraised▾
Developer of a bio-asset recovery system for wet waste. This system processes wet waste, converting it into valuable renewable resources such as clean water, energy, and minerals. The technology operates efficiently, requiring minimal pre-treatment of the waste and producing a high yield of recovered assets. The system is designed for use in various industries, including agriculture and food processing, offering a sustainable solution for waste management and resource recovery. It is compact and self-powering, minimizing environmental impact and operational costs.
- Aug 2017Series A$6.3M
#10
Seed · Trumbull, Connecticut · founded 2010 · 11 employees$4Mraised▾
Provider of a platform for commercial property assessed clean energy programs. The platform offers tools and services to manage the project lifecycle. It facilitates project origination through finance closing. The company delivers technical support services to stakeholders. These stakeholders include contractors, building owners, mortgage holders, and capital providers.
- Dec 2013Seed$1.2M
- Nov 2013Conventional Debt$1.3M
- Jun 2013Seed$177.8K
- Aug 2012Seed$575K
#11
Seed · Trumbull, Connecticut · founded 2010$2.5Mraised▾
Srsworx provides solutions for energy performance calculator. It provides solutions to estimate energy-saving and to calculate financial impacts. It provides a software-as-a-service solution for energy efficiency projects.
- Sep 2012Seed$575K
- Jun 2011Seed$1M
- Feb 2010Seed$900K
#12
Deadpooled · Monroe, Connecticut · founded 2009$1.1Mraised▾
Provider of water treatment solutions. It provides electromagnetic induction solutions for water treatment. It provides forced sequential rephrasing arrangement solutions that optimize the effects of the electromagnetic waves on fluids passing through the field.
- Sep 2014Post IPO$280K
- Aug 2014Post IPO$787.3K
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Environment Tech 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.