Best Sustainability Tech Companies in Illinois, United States
The 197 best Sustainability Tech companies in Illinois, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: LanzaTech.
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 Illinois
| # | Company | Disclosed funding | Last round | Employees | Founded | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | LanzaTech 🦄 Developer of technology converting carbon-rich gases into fuels and chemicals 78Patents top 10%Funding top 17%News top 25%Innovation top 26% All 13 signals ▾Patentstop 10% Fundingtop 17% Newstop 25% Innovationtop 26% Moattop 26% Producttop 29% Markettop 30% Talenttop 34% Partnerstop 35% Techtop 36% Globaltop 37% Growthtop 45% Fin. healthbottom 48% Patents: 765 patents matched (strict assignee match) · 530 filings since 2022 vs 213 in 2017-21 Funding: Raised $869M across 21 rounds · 21 rounds over 21 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 78/100 | $869M | 4 mo ago | 367 367 → 243 (-34%) | 2005 | Sean Simpson Co-Founder | DrupalPHPSalesforce+32 | 765 patents Industrial gas fermentation using engineered microbes to convert C1 gases into chemicals and proteins | 2 partnerships · 1 expansion · 1 award |
| 2 | SMS Assist 🦄 Provider of SaaS-driven maintenance management solutions for commercial spaces | $255M | 120 mo ago | 782 | 2003 | Jay McKee CEO | Apple iCloud MailEnvoyBootstrap+8 | 4 patents Software algorithms for defining and managing geographic service area boundaries | — |
| 3 | Synata Bio Provider of ethonol products | $77M | 19 mo ago | 28 | 2015 | Tim Cesarek CEO | WordPressMySQLPHP+23 | — | — |
| 4 | Azumo Manufacturer of front-lit liquid crystal technology for displays | $56M | 49 mo ago | 41 | 2004 | — | WordPressMySQLPHP+24 | 43 patents Film-based lightguide backlighting and edge‑light management for displays and privacy modes | — |
| 5 | Flexterra Flexible Developer of flexible transistors for the semiconductor industry | $56M | 70 mo ago | 9 | 2005 | Fabrizio Doni Chairman & CEO | — | — | — |
| 6 | ClearFlame Carbon reduction solutions for industrial sectors 40Funding top 26%Talent top 38%Tech top 42%Global bottom 36% All 5 signals ▾Fundingtop 26% Talenttop 38% Techtop 42% Globalbottom 36% Marketbottom 31% Funding: Raised $50.0M across 10 rounds · 10 rounds over 6 yrs (1.7/yr) Talent: 2 named leaders on record · 2 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 40/100 | $50M | 39 mo ago | 41 | 2016 | BJ Johnson Co-Founder & CEO | WordPress Block EditorWordPressMySQL+26 | — | — |
| 7 | Univa Data center optimization and HPC workload management solution | $46M | 107 mo ago | 12 | 2004 | — | — | — | — |
| 8 | Cohesion Provider of a platform for smart building management and operations 48Growth top 20%Funding top 35%Tech top 37%Talent top 38% All 12 signals ▾Growthtop 20% Fundingtop 35% Techtop 37% Talenttop 38% Moattop 41% Producttop 47% Globalbottom 40% Innovationbottom 36% Marketbottom 35% Patentsbottom 34% Newsbottom 21% Customersbottom 9% Growth: Headcount 21 → 44 (+110%) across vintages · 1 acquisition/expansion move in 24 mo Funding: Raised $30.2M across 4 rounds · 4 rounds over 6 yrs (0.7/yr) rank vs industry peers · Fliar Intelligence Index 48/100 | $30M | 6 mo ago | 44 | 2018 | Nick Lawrence Co-Founder | WebflowZohoZepto+25 | 3 patents Patents concentrated in computing, sensing & instrumentation | — |
| 9 | Durata Therapeutics Developing therapeutic medicine to treat infectious disease | $25M | 151 mo ago | 68 | 2009 | — | — | — | — |
| 10 | RedWave Energy Provider of energy generation solution from IR | $19M | 84 mo ago | 13 | 2011 | — | — | — | — |
| 11 | BioSante Pharmaceuticals Online pharmacy providing diverse medications, focusing on sexual health and overall wellness | $18M | 195 mo ago | 15 | 1998 | — | — | — | — |
| 12 | Jupiter Oxygen Developer of carbon capture technology for power and industrial sectors | $16M | 193 mo ago | — | 2001 | Dietrich Gross Founder | — | 132 patents Annular shroud burner designs for industrial combustion and furnace heating systems. | 1 internship |
| 13 | ElectronX Provider of grid management solution | $15M | 7 mo ago | — | 2022 | Evan Caron Co-Founder | SanityApple iCloud MailGoogle Workspace+19 | — | 1 launch · 1 expansion |
| 14 | Laconic Provider of securitized sovereign carbon assets. This company facilitates the conversion of natural resources… | $13M | 21 mo ago | 21 | 2022 | Andrew Gilmour CEO | WixSentryApple iCloud Mail+15 | — | — |
| 15 | LaGray Chem Innovative pharmaceutical company focused on affordable healthcare solutions for sub-Saharan Africa | $12M | 208 mo ago | 87 | 2000 | Alexandra Graham Co-Founder & President | — | — | — |
| 16 | FreshAir Sensor Developer of an air-sensor device to detect tobacco and marijuana smoke 55Talent top 22%Moat top 31%Innovation top 35%Growth top 35% All 10 signals ▾Talenttop 22% Moattop 31% Innovationtop 35% Growthtop 35% Fundingtop 38% Patentstop 38% Producttop 40% Techtop 48% Marketbottom 32% Globalbottom 31% Talent: Analyst team rating 5/5 · 3 named leaders on record Moat: Editorial + unicorn rating 7/10 · IP moat: 15 patents rank vs industry peers · Fliar Intelligence Index 55/100 | $12M | 18 mo ago | 36 | 2013 | John O'Toole Co-Founder | WordPressMySQLPHP+30 | 15 patents Patents concentrated in computing, sensing & instrumentation | — |
| 17 | Grid Status Cloud based dashboard creation software for energy industry | $8M | 21 mo ago | — | 2023 | Connor Waldoch Co-Founder | GhostNode.jsVarnish+14 | — | 2 launchs |
| 18 | Buildings As Batteries Developer of thermal energy storage system for commercial building applications | $8M | 95 mo ago | — | 2007 | Gregor Henze Co-Founder | — | — | — |
| 19 | Goby SaaS-driven platform offering energy management solutions | $7M | 64 mo ago | 33 | 2008 | — | — | 2 patents Modular hygienic inductive charging stands for handheld electronic devices | — |
| 20 | Mezo Provider of AI-powered property maintenance software | $6M | 42 mo ago | 29 | 2020 | Mike Travalini Co-Founder & CEO | SentryFirebasestyled-components+15 | 4 patents AI-powered chatbot platforms for automated maintenance diagnostics and repair troubleshooting | — |
| 21 | Serionix Air clean tech company | $6M | 27 mo ago | 13 | 2011 | Weihua Zheng Co-Founder | — | 9 patents Provides gas filtration media targeting basic and acidic contaminant removal. | — |
| 22 | Housing Authority of Elgin Developer of affordable houses | $4M | 14 mo ago | 3 | 2002 | — | WordPressMySQLPHP+21 | — | — |
| 23 | Hydrosome Labs Platform using technology that enhances the bioavailability of water | $4M | 19 mo ago | — | 2021 | Paul Gadbut President and CEO | WordPressMySQLPHP+20 | 16 patents Ultrafine bubble delivery systems for beverages, cosmetics, pharma, and agricultural applications | 1 partnership |
| 24 | Intelligent Generation Virtual power plant networked software platform | $4M | 48 mo ago | 9 | 2009 | Paul Gazzolo Co-founder and Board Member | — | — | 1 job opening · 1 partnership |
| 25 | Sagegreenlife Developer of green living wall systems | $3M | 136 mo ago | 25 | 2009 | John Oberon COO | Cart FunctionalityBootstrapBackbone.js+25 | 2 patents Automated monitoring and control systems for vertical vegetation wall installations | — |
| 26 | Creative BioTherapeutics Developer of next-generation therapies for the treatment of cancer | $3M | 12 mo ago | 3 | 2019 | Donald Davidson Co-Founder & CEO | — | 15 patents Therapeutic proteins targeting extracellular GRP78 and kringle‑5 for cancer and neurodegeneration | — |
| 27 | Sigora International Provider of smart micro grid platform and smart meters | $3M | 102 mo ago | 36 | 2015 | Andy Bogdan Bindea Founder & CEO | — | — | — |
| 28 | Colorfil Internet first brand offering air filters on a subscription basis | $3M | 38 mo ago | 10 | 2011 | Weihua Zheng Co-Founder | Cart FunctionalityShopifyYouTube+36 | — | — |
| 29 | PowerWorld Developer of power system simulation software for analysis and training | $3M | 152 mo ago | 25 | 1996 | — | WordPress Block EditorWordPressMySQL+12 | — | — |
| 30 | Athena Global Energy Solutions Provider of renewable energy and environmentally sustainable technology commercialization services | $3M | 153 mo ago | — | 2013 | Robert Shambora CEO | — | — | — |
| 31 | Indie Energy Provider of geothermal heating and cooling solutions | $2M | 199 mo ago | 8 | 2006 | Eric Schrock CEO | — | — | — |
| 32 | MFNS Tech Developer of nanocoating solutions for cleaning water | $2M | 10 mo ago | 3 | 2019 | Vikas Nandwana Co-Founder & CTO | — | — | 1 launch |
| 33 | Eta Vision Offers data center energy management solutions | $2M | 95 mo ago | 8 | 2015 | Michael Lingle CEO & Cofounder | — | — | — |
| 34 | ANDalyze Provider of water quality monitoring sensors | $2M | 119 mo ago | 6 | 2005 | Bill Thalheimer CEO | — | 10 patents Portable fluorescence-based chemical sensing devices and reagent‑integrated sensor housings. | — |
| 35 | Varuna Provider of solutions to manage drinking water system | $2M | 63 mo ago | 6 | 2018 | Seyi Fabode Co-Founder & CEO | — | — | — |
| 36 | iTRACS AI-enhanced DCIM solution for smarter, data-driven infrastructure management | $2M | 194 mo ago | 15 | 1987 | James Sherrin CEO & Director | WordPressMySQLPHP+11 | 33 patents Monitoring and diagnosing data port connection patterns in hardware interfaces | — |
| 37 | S.I. Container Builds Provider of sustainable steel frame structures for residential and commercial applications | $2M | 44 mo ago | 6 | 2021 | Dan Rubin Co-Founder & CFO | Wix eCommerceWixSentry+22 | — | — |
| 38 | Datacrossing Data grid based decision support system for groundwater management | $2M | 27 mo ago | — | — | — | — | — | — |
| 39 | Exactics Developer of rapid diagnostic solutions for convenient at-home healthcare use | $2M | 8 mo ago | — | 2021 | Dylan Murray Co-Founder & Chief Operating Officer | — | — | — |
| 40 | nanoRETE Nanoparticle biosensors for real-time detection of pathogens | $1M | 132 mo ago | 3 | 2011 | — | — | — | — |
| 41 | PVPower An online marketplace for solar PV equipment | $1M | 174 mo ago | 14 | 2009 | Dan Kuthy Co-Founder | — | — | — |
| 42 | Pagari Life Science Developer of therapeutics for infectious diseases | $525K | 1 mo ago | — | 2022 | David Feldker President and CEO | — | — | — |
| 43 | ImmunArtes Biotech innovating vaccines and therapeutics against Staphylococcus aureus, a global health crisis | $499K | 53 mo ago | 4 | 2017 | Dominique Missiakas Co-Founder | — | — | 1 launch |
| 44 | Covira Surgical Developer of therapeutic to treat infectious diseases | $275K | 21 mo ago | 8 | 2018 | John Alverdy Founder | — | — | — |
| 45 | Confluency Provider of solutions for water bodies management | $245K | 71 mo ago | 4 | 2019 | Mason Throneburg Co-Founder & CEO | — | — | — |
| 46 | Syndem Democratizing smart grids with synchronized inverters for stable, reliable power systems | $206K | 71 mo ago | — | 2017 | Qing-Chang Zhong Founder & CEO | — | — | — |
| 47 | SmarterShade Developer of user-controlled, powerless, affordable smart glass for privacy and energy | $200K | 157 mo ago | 2 | 2007 | Will McLeod Founder | — | 14 patents Smart adaptive windows using mechanically actuated variable light transmission technology | — |
| 48 | Dawatek Developer of medical imaging devices to diagnose infectious and chronic diseases | $100K | 44 mo ago | 5 | 2017 | Davina Moossazadeh Co-Founder & CTO | — | 4 patents Offset Raman spectroscopy imaging systems for non-contact chemical and pathogen analysis | — |
| 49 | Route SaaS-driven business management platform for the building services industry | $100K | 47 mo ago | 11 | 2007 | Ricardo Regalado Founder & CEO | WordPress Site EditorElementorWordPress+32 | 5 patents Remote desktop access solutions and email message rerouting technologies | — |
Top 12 Sustainability Tech companies in Illinois
#1
Public · Skokie, Illinois · founded 2005 · 367 employees$869.3Mraised▾
Developer of technology converting carbon-rich gases into fuels and chemicals. The company provides solutions for energy security and economic strength. It transforms industrial emissions and gasified waste into ethanol. This ethanol serves as a building block for sustainable aviation fuel and chemical derivatives. The company partners with industries to capture and process carbon-rich gases.
- Jan 2026Post IPO$20M
- Jun 2025Grant (prize money)$2.5M
- Apr 2025Grant (prize money)$1.9M
- Jan 2025Grant (prize money)$2.5M
#2
Series A · Chicago, Illinois · founded 2018 · 44 employees$30.2Mraised▾
Provider of a platform for smart building management and operations. The platform offers solutions for access control, experience enhancement, and maintenance. It consolidates data from building systems, software, and sensors into a unified platform. The platform also provides advisory services for planning, solution design, and system integrations.
- Nov 2025Series A$250K
- Nov 2021Series A$15M
- Jul 2021Seed$7M
- Jul 2020Seed$8.2M
#3
Series A · Chicago, Illinois · founded 2022$15Mraised▾
Provider of grid management solution. It offers solutions to enable precision risk management, volatility hedging opportunities, and the monetization of power assets. It offers derivative products that capture the intraday price fluctuations of the changing electrical grid helping to smooth the financial path of clean energy adoption across the nation.
- Nov 2025Series A$36.5M
- Feb 2025Seed$10M
- Jun 2024Seed$15M
#4
Seed · Bethalto, Illinois · founded 2022$525Kraised▾
Developer of therapeutics for infectious diseases. It offers anti-herpetic viral drugs and advanced healing drugs that target viral deactivation and healing which include Herpes Simplex 1 and 2, Shingles (Herpes Zoster), Burns, Severe wounds, and Post Herpetic Neuralgia.
- Apr 2026Seed$97.5K
- May 2025Seed$55.5K
- Mar 2024Seed$275K
- Oct 2023Seed$250K
#5
Series A · Warrenville, Illinois · founded 2015 · 28 employees$77Mraised▾
Provider of ethonol products. It is a technology company that converts waste-based carbon into products using a fermentation process. Its proprietary process captures and repurposes CO2 emissions, converting it into carbon-negative ethanol and other products.
#6
Funding Raised · Chicago, Illinois · founded 2021$1.5Mraised▾
Developer of rapid diagnostic solutions for convenient at-home healthcare use. The company builds diagnostic tools intended to make healthcare more accessible. It focuses on creating solutions for individuals to use within their homes.
- Oct 2025Grant (prize money)$1.5M
#7
Series B · Lebanon, Illinois · founded 2013 · 36 employees$11.8Mraised▾
Developer of an air-sensor device to detect tobacco and marijuana smoke. It provides a two-plug adapter that fits over existing wall outlets and leverages Wi-Fi to send infraction information to a central monitoring system, which results in an email to the admin. Its device comprises polymer sensors that detect specific airborne chemicals like the biological receptors in the human body that is by binding only with the target molecule, making them sensitive and specific and resetting when the target molecules are cleared. It also provides an app that allows users to monitor the detection of smoke.
- Nov 2024Series B$3.7M
- May 2023Series A$1M
- Sep 2019Grant (prize money)$1.5M
- Jan 2019Series A$3.5M
#8
Seed · Glenview, Illinois · founded 2019 · 3 employees$2.4Mraised▾
Developer of nanocoating solutions for cleaning water. It develops a nano-structured coating that helps enterprises clean up oil and other pollutants or toxins out of waterbodies. Its main applications are in cleaning oil spills and toxic water from factory runoff. It also lets the user recover the oil after its capture.
- Aug 2025Seed$1.4M
- Oct 2023Conventional Debt$960K
#9
Funding Raised · Elgin, Illinois · founded 2002 · 3 employees$4Mraised▾
Developer of affordable houses
- Apr 2025Grant (prize money)$52.8K
- Mar 2025Grant (prize money)$120.5K
- Dec 2013Grant (prize money)$233.8K
- Mar 2012Grant (prize money)$306.3K
#10
Seed · Gurnee, Illinois · founded 2019 · 3 employees$3Mraised▾
Developer of next-generation therapies for the treatment of cancer. The company's lead candidate drug is CBT300 causes drug-resistant breast cancer tumor cell death. Another drug candidate is CBT200 for lung cancer patients with COVID-19.
- Jun 2025Grant (prize money)$400K
- Sep 2024Grant (prize money)$400K
- Aug 2023Seed$3M
- Jan 2021Grant (prize money)$255.7K
#11
Series A · Chicago, Illinois · founded 2022 · 21 employees$13Mraised▾
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- Aug 2024Series A$370K
- Sep 2023Series A$12.6M
- May 2022Seed$1M
#12
Series A · Chicago, Illinois · founded 2023$8Mraised▾
Cloud based dashboard creation software for energy industry. It is a real-time monitoring platform that provides data and insights on the electric grid. It offers a centralized hub for tracking energy supply, demand, and pricing across independent system operators. It allows users to visualize the data using graphs. The platform provides insights that assist teams to make data-driven decisions.
- Aug 2024Series A$8M
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
What Illinois researches in climate adaptation
University of Illinois Urbana-Champaign and partners lead Illinois's climate-adaptation research, focusing predominantly on flood and watershed management with a cautiously concerned, slightly optimistic tone.
- University of Illinois Urbana-Champaign17
- Illinois Institute of Technology4
- University of Illinois Chicago4
- Southern Illinois University Carbondale3
- Illinois Archaeological Survey3