Best Sustainability Tech Companies in Denver, United States
The 73 best Sustainability Tech companies in Denver, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Helio Home.
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 Denver
| # | Company | Disclosed funding | Last round | Stage | Employees | Founder | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Helio Home Provider of all-electric heating and cooling system installation and related services 67Funding top 24%Growth top 28%Tech top 37%Talent top 38% All 7 signals ▾Fundingtop 24% Growthtop 28% Techtop 37% Talenttop 38% Producttop 47% Globalbottom 48% Marketbottom 46% Funding: Raised $50.0M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) Growth: Web rank 5,000,000 → 1,000,000 YoY · Fresh capital in last 24 mo rank vs industry peers · Fliar Intelligence Index 67/100 | $50M | 5 mo ago | Series A | — | Aaron Grant Co-Founder | — | — |
| 2 | RemoteLock Provider of software solutions for access control using smart locks | $48M | 35 mo ago | Series B | 15 | Nolan Mondrow CEO | 3 patents Smart lock credential validation and access control authentication systems | 1 launch |
| 3 | Clean Energy Collective Developer of community-owned solar systems | $45M | 138 mo ago | Acqui-Hired | 102 | — | — | — |
| 4 | Novinda Developer of non-carbon mercury capture reagent | $34M | 109 mo ago | Deadpooled | 8 | Michael Rosenberg CEO | 45 patents Mercury capture and sorbent technologies for flue‑gas and industrial emissions | — |
| 5 | SunShare Developer of community solar gardens providing subscription-based renewable energy solutions | $30M | 57 mo ago | Series A | 32 | David Amster-Olszewski Founder & CEO | — | 2 job openings |
| 6 | Cowboy Clean Fuels Provider of renewable natural gas | $26M | 10 mo ago | Series B | 15 | Ryan Waddington Co-Founder | — | 1 launch |
| 7 | Coolerado Provider of energy-efficient air conditioning systems | $25M | 158 mo ago | Acqui-Hired | 34 | Tom Teynor CEO | 4 patents Evaporative cooler water delivery systems and scale‑reduction technologies | — |
| 8 | Mercy Housing Community foundation focused on affordable housing | $23M | 9 mo ago | Funding Raised | 1,600 | Timothy O’Roark Founder | — | 1 award |
| 9 | Rachio Smart watering solutions for efficient irrigation and outdoor home automation | $20M | 99 mo ago | Acquired | 52 | — | 56 patents Smart residential irrigation and lawn care systems integrating consumable delivery and remote control | — |
| 10 | Swiim Irrigation solutions: design, construction, repair, precision, water management, and consulting | $9M | 95 mo ago | Series B | 24 | Kevin France CEO | — | — |
| 11 | Denver Housing Developer of affordable homes | $8M | 7 mo ago | Funding Raised | 279 | — | — | 1 job opening |
| 12 | Crimson Renewable Energy Manufacturer and supplier of biodiesel | $5M | 16 mo ago | Funding Raised | 67 | Harry Simpson President/CEO | — | — |
| 13 | RenewWest Provider of ecosystem restoration and landscape management services. | $3M | 39 mo ago | Seed | 9 | John Cleland Co-Founder & CEO | — | — |
| 14 | Remotely Smart building software to track smart devices in units | $2M | 51 mo ago | Seed | 6 | Dan Daugherty Co Founder & CEO | — | — |
| 15 | Tereform Developer of chemical recycling technology for textile waste | $1M | 15 mo ago | Seed | 2 | — | — | — |
| 16 | Stratavia Data Center automation solutions | $1M | 198 mo ago | Acqui-Hired | 14 | — | 10 patents Automation of database administration standard operating procedures and workflow management. | — |
| 17 | Instream water Smart water bottle and wristband for water refilling | $562K | 67 mo ago | Seed | 2 | Patrick Mahncke Founder & CEO | — | — |
| 18 | OptiMiser Developer of software for residential energy auditing and performance analysis | $397K | 47 mo ago | Funding Raised | 4 | — | — | — |
| 19 | Steele Properties Designs and develops affordable homes | $265K | 9 mo ago | Funding Raised | — | — | — | — |
| 20 | NLB Water Wastewater recycling and desalination solutions | $255K | 134 mo ago | Seed | — | Fredrik Klaveness CEO | — | — |
| 21 | Demand IQ AI-driven platform offering customer acquisition solutions for solar power plant operators | $250K | 55 mo ago | Funding Raised | 15 | — | 2 patents E‑commerce UI generation and optimization of virtual storefront templates for online retail | — |
| 22 | Drip Drone Internet first brand of water leak detectors | $150K | 101 mo ago | Seed | 5 | Eric Davis Co-Founder | — | — |
| 23 | Big Ladder Software Provider of software, training, support, and consulting for energy modeling | $140K | 144 mo ago | Funding Raised | 6 | — | — | — |
| 24 | Sorcerer Weather forecasting and climate analytics solution | $125K | 10 mo ago | Seed | — | Austin Tindle Co-Founder & CEO | — | — |
Top 12 Sustainability Tech companies in Denver
#1
Series A · Denver, Colorado · founded 2020$50Mraised▾
Provider of all-electric heating and cooling system installation and related services. The company offers system installation, rebates, and financing options. It provides a home application that learns usage to optimize energy bills. The company remotely monitors systems for performance and efficiency.
- Jan 2026Series A$50M
#2
Funding Raised · Denver, Colorado · founded 1981 · 1600 employees$22.8Mraised▾
Community foundation focused on affordable housing
- Sep 2025Grant (prize money)$300.1K
- Mar 2025Grant (prize money)$149K
- Apr 2015Grant (prize money)$374.8K
- Jun 2012Grant (prize money)$219.5K
#3
Series B · Denver, Colorado · founded 2020 · 15 employees$26.1Mraised▾
Provider of renewable natural gas. It provides Clean fuels and has developed a technology to develop biogas. It is manufactured by capturing and sequestering CO2.
- Jul 2025Conventional Debt$6M
- May 2024Series B$13.2M
- Jan 2024Grant (prize money)—
- Dec 2023Series A$3.7M
#4
Funding Raised · Denver, Colorado · founded 1938 · 279 employees$8Mraised▾
Developer of affordable homes
- Nov 2025Grant (prize money)$5.8M
- Sep 2025Grant (prize money)$2.3M
#5
Funding Raised · Denver, Colorado · founded 2006 · 67 employees$5.1Mraised▾
Manufacturer and supplier of biodiesel
- Feb 2025Grant (prize money)$143.1K
- Feb 2014Grant (prize money)$5M
#6
Funding Raised · Denver, Colorado · founded 2006$265.2Kraised▾
Designs and develops affordable homes
- Sep 2025Grant (prize money)$265.2K
#7
Series B · Denver, Colorado · founded 2011 · 15 employees$48.3Mraised▾
Provider of software solutions for access control using smart locks. It provides users with residential and commercial access control solutions, a connected camera for video monitoring, a power plug and strip and a connected thermostat.
- Jun 2023Series B$17.8M
- Jan 2022Series B$3M
- Dec 2021Series B$14.8M
- Sep 2020Series A$3.6M
#8
Seed · Denver, Colorado · founded 2022 · 2 employees$1.2Mraised▾
Developer of chemical recycling technology for textile waste. Its offerings include a novel process that transforms mixed-material waste textiles, such as polyester, back into their original chemical building blocks using oxygen and biobased solvents. It enables the creation of recycled polymers from materials containing complex additives like spandex, prints, finishes, and dyes.
- Feb 2025Seed$1.2M
#9
Seed · Denver, Colorado · founded 2024$125Kraised▾
Weather forecasting and climate analytics solution. It provides information and data related to various weather factors including wind, temperature, rainfall, and more.
- Aug 2025Grant (prize money)$305K
- 2024Seed$500K
#10
Series A · Denver, Colorado · founded 2011 · 32 employees$30Mraised▾
Developer of community solar gardens providing subscription-based renewable energy solutions. The company builds, owns, and manages solar gardens, delivering long-term value to subscribers. They lease or buy land from landowners to build community solar gardens. These gardens serve subscribers who want to benefit from solar power. The company handles maintenance and performance of its solar gardens.
- Sep 2021Series A$30M
- Sep 2018Conventional Debt$11M
- Mar 2016Seed—
#11
Deadpooled · Denver, Colorado · founded 2003 · 8 employees$34.2Mraised▾
Developer of non-carbon mercury capture reagent. It is operating as an air-quality technology company, providing non-carbon mercury capture products to owners and operators of coal-fired electric utility and industrial boilers. The innovative proprietary product named Amended Silicates™ is a mineral-based product which acts as a mercury removal and oxidation reagent through a chemical reaction, rather than adsorption technologies. Operates a fleet of mercury continuous monitoring systems to evaluate the fate of mercury across the entire air quality control system during the testing process. Also, offers other professional services like environmental performance assessment, testing & evaluation, engineering, analysis & recommendation and compliance testing services to plant operators. It's compatible with two systems for feeding named gas-assisted discharge system, and nitrogen injection valves which accommodate both AS & PAC types.
- May 2017Series E$1.1M
- Aug 2016Series E$500K
- Nov 2015Series E$1.1M
- Feb 2015Series E$7.3M
#12
Acqui-Hired · Denver, Colorado · founded 2009 · 102 employees$45.3Mraised▾
Developer of community-owned solar systems. Provides access to solar power to all community members through a centralized solar array. Participants receive credits on their electric bill for participating in the solar array. Also, developed software systems for utilities and customers to manage the community solar systems.
- Dec 2014Series B—
- Oct 2014Conventional Debt$9.1M
- Oct 2014Series A$1.4M
- Dec 2012PE$13M
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.