| Aclymate | Research / Policy | Early | $335K+ (grants); Techstars Sustainability alum | Denver, CO |
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| Agami Zero | EV & Transportation | Pre-seed | CU Accelerator | Boulder |
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| AMP Robotics | Circular Economy/Recycling | Growth (Series D) | ~$267-314M total (sources vary); Series C was $91M (Nov 2022), grew to $99M+ (May 2023) | Louisville, CO |
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| Arcadia | Grid Software | Growth | $30M+ (Apr 2024) | Greenwood Village |
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| AtmosZero | Industrial Decarb | Early | $44.3M | Loveland / Fort Collins |
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| Birch Geothermal | Geothermal | Early | Undisclosed (Montauk Capital portfolio company) | Colorado |
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| Bolder Industries | Circular Economy/Recycling | Growth | $80M equity + $100M project financing (2021); €32M EU Innovation Fund grant (2025) | Boulder, CO |
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| Bye Aerospace | Aviation | Growth | $32.9M total; Series B $19.64M (Nov 2021) | Englewood, CO |
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| Colorado Clean Energy Fund | Research / Policy | Established (nonprofit) | $30M initial seed funding (SB 21-230); GGRF federal subaward | Denver, CO |
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| Czero Solutions | Research / Policy | Established | Grant/contract-funded engineering services firm, no VC rounds | Fort Collins, CO |
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| eGauge Systems | Grid Software | Established | Bootstrapped / undisclosed | Boulder, CO |
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| Electra | Industrial Decarb | Early | Undisclosed (building pilot plant) | Boulder |
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| Emporia | Home Electrification | Growth | $16M | Littleton, CO |
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| Encoord | Grid Software | Established | Undisclosed | Edgewater, CO |
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| EsterCycle | Carbon Removal | Pre-seed | $250K (OEDIT grant) | Arvada, CO |
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| EVchargeME | EV & Transportation | Early | Bootstrapped (product sales) | Littleton, CO |
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| ExoPower | EV & Transportation | Pre-seed | Advanced Industries grant | Lafayette, CO |
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| Fervo Energy | Geothermal | Public (NASDAQ: FRVO) | $1.5B+ | Houston TX / heavy NREL/CO ties, just IPO'd |
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| Forge Nano | Low-Carbon Materials | Going public (SPAC) | ~$166.5M total raised incl. $40M (Apr 2025) and $10M from GM Ventures (Oct 2024); announced $1.6B SPAC merger with Archimedes II (~May 2026), expected to close H2 2026 | Thornton, CO |
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| Gevo | Low-Carbon Materials | Public (NASDAQ: GEVO) | Publicly traded; FY2025 revenue $160.58M (+849% YoY); DOE conditional loan of $1.46B (excl. $167M capitalized interest) for ATJ-60 South Dakota SAF project | Englewood, CO |
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| Gradient Geothermal | Geothermal | Early | $3.9M total; grants from Colorado Energy Office and DOE | Denver, CO |
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| GridX | Grid Software | Growth (Series C) | $63.3M-$69.4M total; $40M Series C led by Energy Impact Partners (2022) | Walnut Creek, CA / Colorado office |
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| Helios Charging | EV & Transportation | Early | State grant recipient | Colorado (Ridgway/Fairplay) |
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| Holy Cross Energy | Research / Policy | Established (nonprofit co-op) | Member-owned nonprofit cooperative | Glenwood Springs, CO |
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| Hygge Power | Home Electrification | Early | $330K-$3.3M (sources vary) | Boulder, CO |
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| ION Clean Energy | Carbon Removal | Growth (Series A) | $45.4M total; $45M Series A led by Chevron New Energies (Apr 2024) | Boulder, CO |
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| Jetson Home | Home Electrification | Growth (Series A) | $50M Series A (Jan 2026) led by Eclipse; $5M seed (2024) | North Vancouver, BC / Denver, CO operations |
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| JUWI Inc. | Solar & Storage | Established | Subsidiary of juwi AG (Germany) | Boulder |
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| KineticCore Solutions | Solar & Storage | Early | $100K+ disclosed; investors include NSF, Colorado Venture Capital Authority, Village Capital, Creative Destruction Lab | Loveland, CO |
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| King Energy | Solar & Storage | Growth (Seed) | $10M seed (Oct 2024) led by ArcTern Ventures; $150M in committed project financing | Durango, CO |
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| Koloma | Hydrogen | Growth | $403M | Denver |
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| Lightship | EV & Transportation | Growth | $100.6M | Broomfield, CO (mfg) / SF (HQ) |
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| Living Ink | Low-Carbon Materials | Early | $3M+ (private) plus NSF SBIR and DOE grant support | Berthoud, CO |
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| LongPath Technologies | Methane/Emissions Monitoring | Growth | DOE loan guarantee closed at $162.4M (Oct 2024); Series A $29.5M (2023) | Boulder, CO |
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| Mad Agriculture (Mad Capital) | Agriculture Tech | Established nonprofit + Growth-stage fund | Perennial Fund II closed at $78.4M (Sept 2025), oversubscribed 3x its $25M target; total AUM now $100M | Boulder, CO |
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| Mana Battery | Solar & Storage | Early (Seed) | Seed stage; grants from CU Chancellor's Innovation Fund, OEDIT, ARPA-E SBIR ($275K) | Boulder/Broomfield, CO |
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| Marvel Fusion | Fusion | Growth | €60M+ raised (parent company); $150M facility investment in Colorado | Munich, Germany / Fort Collins, CO facility |
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| Meati Foods | Agriculture Tech | Acquired/Distressed | ~$407M total raised historically; acquired out of distress July 2025 | Boulder, CO (mfg facility in Thornton) |
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| Minus Materials | Low-Carbon Materials | Early (Seed) | Small/grant-based: $125K CU Lab Venture Challenge, undisclosed SOSV seed, $175K 4 Corners grant (2024), $100K pilot grant. No priced VC round confirmed. | Boulder, CO |
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| MycoTechnology | Agriculture Tech | Growth | ~$220-277M total across 13 rounds (sources vary) | Aurora, CO |
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| Optera | Grid Software | Acquired | Undisclosed (Series A) | Boulder, CO |
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| Outrider | EV & Transportation | Late | $250M+ | Brighton, CO |
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| Prieto Battery | Solar & Storage | Growth (Series D) | $8M Series D (Feb 2023); total raised undisclosed | Fort Collins, CO |
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| Project Canary | Methane/Emissions Monitoring | Growth | $111M Series B (Feb 2022); ~$120-149M total raised (sources vary) | Denver, CO |
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| Prometheus Materials | Low-Carbon Materials | Early (Series A) | $8M Series A (closed June 6 2022), led by Sofinnova Partners | Longmont, CO |
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| Redaptive | Grid Software | Growth | Undisclosed (significant) | Denver |
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| Spirae | Grid Software | Established | $18.9M revenue (2025); grant/DOE-backed, no major VC round disclosed | Fort Collins, CO |
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| Spruce Power | Solar & Storage | Public (NYSE: SPRU) | Public company | Denver (HQ) |
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| SunShare | Solar & Storage | Growth | Undisclosed | Denver, CO |
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| Terra CO2 Technology | Low-Carbon Materials | Growth (Series B) | Series A $46M; Series B totaled $124.5M (final, up from initial $82M tranche) - total raised ~$170M+ | Golden, CO |
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| Travertine Technologies | Carbon Removal | Growth (Series A) | $11.5M-$13.5M total; $8.5M Series A led by Holcim (Jun 2024) | Boulder, CO |
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| Uplight | Grid Software | Growth | $290M+ | Boulder |
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| Vartega | Circular Economy/Recycling | Early/Growth | ~$20M+ across multiple rounds incl. $11.2M Series A (Dec 2023) and $10M strategic round led by Diamond Edge Ventures | Denver, CO |
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| WatchPost | Grid Software | Early (Pre-seed) | $40,000 (2026 CU Boulder New Venture Challenge first prize) | Boulder, CO |
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| Wattmore | Grid Software | Early | Techstars-backed | Denver |
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| WeaveGrid | Grid Software | Growth | $78M+ | San Francisco (major Xcel/CO presence) |
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| Wunder | Solar & Storage | Growth | $264M | Boulder, CO |
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| Zero Homes | Home Electrification | Pre-seed / Early | CO OEDIT Advanced Industries grant (Jan 2026) | Denver, CO |
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| ZeroTwelve | Low-Carbon Materials | Early | Early stage (specific amount undisclosed) | Golden, CO |
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