What are the most valued startups in the CCUS market?
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The CCUS market is becoming one of the most important climate technology categories, with startups working on carbon capture, direct air capture, mineralization, carbon utilization, and long-term carbon storage.
This list ranks leading CCUS startups by valuation, using the latest reported or estimated data available in our database.
We update this list every month, because valuations, funding rounds, acquisitions, and public market prices can change quickly in the CCUS market.
And if you want to better understand this new industry, you can download our pitch covering the CCUS market.
A quick summary table
| Metric | Value |
|---|---|
| Most valuable CCUS startup | Svante, with an estimated valuation of $1.8B–$2.6B |
| Second most valuable CCUS startup | Climeworks, with an estimated valuation of $1.6B–$2.3B |
| Median CCUS startup valuation | Roughly $80M |
| Share of CCUS market valuation captured by the top 10 | Roughly 58% |
| Top CCUS startup valuation vs. median | About 28x higher |
| Median valuation-to-capital-raised ratio in CCUS | Roughly 4.4x |
| CCUS startups valued at $1B+ | 7 startups have valuation ranges reaching or exceeding $1B |
This market map, featured in our CCUS market deck, highlights top companies and startups in the CCUS market
Top startups in the CCUS market ranked by valuation
Here is an updated table that ranks the top startups in the CCUS market based on their latest reported or estimated valuations.
If you want more detaild about their fundraising activity, you can check our list of the startups who have raised the most funding in the CCUS market.
| # | Startup Name | What They Do | Current Valuation ($) | Valuation Confidence Level | Valuation Type | Evidence Status | Total Funding ($) | Funding Confidence Level |
|---|---|---|---|---|---|---|---|---|
| 1 | Svante | Solid-sorbent industrial capture | $1.8B–$2.6B | Partial Confidence | Implied Valuation from Raise | Estimated | $474M | Partial Confidence |
| 2 | Climeworks | Direct air carbon removal | $1.6B–$2.3B | Strong Confidence | Implied Valuation from Raise | Implied | $956M | Strong Confidence |
| 3 | Twelve | CO2 to fuels and chemicals | $1.4B–$2.5B | Partial Confidence | Implied Valuation from Raise | Implied | $872M | Strong Confidence |
| 4 | Heirloom | Limestone-based direct air capture | $900M–$1.4B | Partial Confidence | Implied Valuation from Raise | Implied | $203M | Strong Confidence |
| 5 | Carbon Engineering | Direct air capture technology | $1.1B | Full Confidence | Acquisition Value | Observed | $76M | Strong Confidence |
| 6 | Newlight Technologies | Greenhouse gas to biomaterials | $800M–$1.4B | Partial Confidence | Implied Valuation from Raise | Implied | $220M | Partial Confidence |
| 7 | Carbon Clean | Modular industrial carbon capture | $700M–$1.2B | Partial Confidence | Comparables-Based Estimate | Estimated | $195M | Partial Confidence |
| 8 | CarbonCure | CO2 mineralization for concrete | $500M–$900M | Partial Confidence | Implied Valuation from Raise | Implied | $160M | Partial Confidence |
| 9 | Air Company | CO2-derived fuels and products | $460M–$860M | Partial Confidence | Implied Valuation from Raise | Implied | $108M | Full Confidence |
| 10 | Verdox | Electrochemical carbon capture | $450M–$800M | Partial Confidence | Implied Valuation from Raise | Estimated | $80M | Strong Confidence |
| 11 | Remora | Mobile exhaust carbon capture | $450M–$700M | Partial Confidence | Implied Valuation from Raise | Implied | $117M | Partial Confidence |
| 12 | Deep Sky | Carbon removal project infrastructure | $330M–$500M | Partial Confidence | Implied Valuation from Raise | Implied | $57M | Strong Confidence |
| 13 | CarbonCapture | Modular direct air capture | $300M–$500M | Partial Confidence | Implied Valuation from Raise | Implied | $88M | Strong Confidence |
| 14 | Terradot | Enhanced rock weathering removal | $300M–$460M | Strong Confidence | Implied Valuation from Raise | Implied | $58M | Full Confidence |
| 15 | Aircapture | Modular direct air capture | $280M–$430M | Strong Confidence | Implied Valuation from Raise | Implied | $50M | Strong Confidence |
| 16 | Solidia Technologies | Low-carbon cement and concrete | $250M–$450M | Low Confidence | Comparables-Based Estimate | Estimated | $105M | Strong Confidence |
| 17 | Again | CO2 fermentation into chemicals | $220M–$360M | Partial Confidence | Implied Valuation from Raise | Implied | $53M | Strong Confidence |
| 18 | 44.01 | Mineralizes CO2 in rock | $210M–$350M | Strong Confidence | Implied Valuation from Raise | Implied | $47M | Strong Confidence |
| 19 | Captura | Direct ocean carbon capture | $200M–$340M | Partial Confidence | Implied Valuation from Raise | Implied | $45M | Full Confidence |
| 20 | Avnos | Hybrid DAC captures water | $200M–$320M | Partial Confidence | Implied Valuation from Raise | Implied | $128M | Partial Confidence |
| 21 | MTR Carbon Capture | Membrane CO2 separation | $190M–$330M | Strong Confidence | Implied Valuation from Raise | Implied | $27M | Partial Confidence |
| 22 | Carbon Recycling International | CO2-to-methanol technology | $170M–$300M | Partial Confidence | Revenue or ARR Multiple Estimate | Estimated | $76M | Partial Confidence |
| 23 | Vaulted Deep | Underground biomass carbon storage | $180M–$280M | Strong Confidence | Implied Valuation from Raise | Implied | $40M | Full Confidence |
| 24 | Spiritus | Low-cost DAC carbon removal | $170M–$270M | Partial Confidence | Implied Valuation from Raise | Implied | $41M | Strong Confidence |
| 25 | Air Protein | Air-based protein fermentation | $160M–$280M | Partial Confidence | Comparables-Based Estimate | Estimated | $107M | Partial Confidence |
| 26 | Mantel | Molten-borate carbon capture | $150M–$260M | Partial Confidence | Implied Valuation from Raise | Implied | $32M | Full Confidence |
| 27 | CarbonFree | CO2 to specialty chemicals | $100M–$300M | Low Confidence | Revenue or ARR Multiple Estimate | Estimated | Not provided | Low Confidence |
| 28 | Mission Zero | Electrochemical direct air capture | $140M–$230M | Strong Confidence | Implied Valuation from Raise | Implied | $33M | Full Confidence |
| 29 | Capture6 | Brine-based carbon removal | $130M–$220M | Partial Confidence | Implied Valuation from Raise | Implied | $34M | Partial Confidence |
| 30 | Carbon Upcycling | CO2-enhanced cement materials | $120M–$220M | Strong Confidence | Implied Valuation from Raise | Implied | $50M | Full Confidence |
| 31 | Paebbl | Mineralizes CO2 into materials | $125M–$210M | Strong Confidence | Implied Valuation from Raise | Implied | $33M | Strong Confidence |
| 32 | Dioxycle | Converts CO2 into chemicals | $115M–$220M | Partial Confidence | Implied Valuation from Raise | Implied | $40M | Partial Confidence |
| 33 | Ebb Carbon | Ocean alkalinity enhancement | $120M–$190M | Partial Confidence | Implied Valuation from Raise | Implied | $34M | Partial Confidence |
| 34 | Carbyon | Fast-swing direct air capture | $110M–$190M | Partial Confidence | Implied Valuation from Raise | Implied | $28M | Partial Confidence |
| 35 | Mati Carbon | Smallholder enhanced weathering | $100M–$180M | Partial Confidence | Proxy-Based Estimate | Estimated | Not provided | Low Confidence |
| 36 | D-CRBN | Plasma CO2 recycling technology | $100M–$170M | Strong Confidence | Implied Valuation from Raise | Implied | $20M | Strong Confidence |
| 37 | Gigablue | Marine carbon removal platform | $100M–$170M | Partial Confidence | Implied Valuation from Raise | Implied | $20M | Strong Confidence |
| 38 | CarbonQuest | Distributed point-source capture | $100M–$165M | Strong Confidence | Implied Valuation from Raise | Implied | $56M | Strong Confidence |
| 39 | Blue Planet Systems | CO2-mineralized aggregate production | $80M–$180M | Low Confidence | Proxy-Based Estimate | Estimated | $19M+ | Partial Confidence |
| 40 | CREW Carbon | Wastewater carbon removal | $95M–$160M | Strong Confidence | Implied Valuation from Raise | Implied | $24M | Strong Confidence |
| 41 | RepAir | Electrochemical CO2 capture | $90M–$160M | Partial Confidence | Implied Valuation from Raise | Implied | $27M | Full Confidence |
| 42 | Dimensional Energy | CO2-derived sustainable fuels | $90M–$160M | Partial Confidence | Implied Valuation from Raise | Implied | $20M | Partial Confidence |
| 43 | NovoNutrients | Turns CO2 into protein | $80M–$150M | Partial Confidence | Implied Valuation from Raise | Implied | $30M | Strong Confidence |
| 44 | Silicate | Limestone enhanced weathering | $80M–$150M | Low Confidence | Active Raise Valuation | Estimated | $2M | Partial Confidence |
| 45 | C-Capture | Solvents for industrial capture | $70M–$130M | Partial Confidence | Implied Valuation from Raise | Implied | $28M | Strong Confidence |
| 46 | Greenlyte Carbon Technologies | DAC plus hydrogen production | $70M–$120M | Partial Confidence | Implied Valuation from Raise | Implied | $20M | Strong Confidence |
| 47 | Origen | Limestone-based carbon removal | $70M–$115M | Partial Confidence | Implied Valuation from Raise | Implied | $13M | Full Confidence |
| 48 | Arca | Mine-waste CO2 mineralization | $60M–$120M | Partial Confidence | Proxy-Based Estimate | Estimated | $10M | Partial Confidence |
| 49 | Phlair | Electrochemical DAC systems | $60M–$100M | Partial Confidence | Implied Valuation from Raise | Implied | $13M | Partial Confidence |
| 50 | Equatic | Seawater CO2 removal | $60M–$100M | Strong Confidence | Implied Valuation from Raise | Implied | $12M | Strong Confidence |
| 51 | Planetary Technologies | Ocean alkalinity carbon removal | $55M–$95M | Partial Confidence | Implied Valuation from Raise | Implied | $15M | Strong Confidence |
| 52 | Feynman Dynamics | CO2 electrolysis components | $55M–$90M | Partial Confidence | Implied Valuation from Raise | Implied | $14M+ | Partial Confidence |
| 53 | Alt Carbon | India enhanced rock weathering | $55M–$85M | Strong Confidence | Implied Valuation from Raise | Implied | $13M | Full Confidence |
| 54 | CarbiCrete | Cement-free carbon-negative concrete | $45M–$95M | Low Confidence | Comparables-Based Estimate | Estimated | $14M | Partial Confidence |
| 55 | Aqualung Carbon Capture | Membrane carbon capture | $45M–$90M | Partial Confidence | Proxy-Based Estimate | Estimated | $10M+ | Strong Confidence |
| 56 | Nuada | Heatless industrial capture | $45M–$85M | Partial Confidence | Implied Valuation from Raise | Estimated | $10M | Partial Confidence |
| 57 | Noya | Modular direct air capture | $45M–$85M | Low Confidence | Implied Valuation from Raise | Implied | $11M | Partial Confidence |
| 58 | Carbon Ridge | Shipboard carbon capture systems | $45M–$80M | Partial Confidence | Implied Valuation from Raise | Implied | $16M | Strong Confidence |
| 59 | LanzaTech | Waste carbon to fuels | $60M | Full Confidence | Public Market Cap | Observed | $1.0B | Partial Confidence |
| 60 | Sustaera | Low-cost DAC sorbents | $35M–$75M | Low Confidence | Comparables-Based Estimate | Estimated | $11M | Partial Confidence |
| 61 | CarbonBuilt | Low-carbon concrete curing | $35M–$75M | Low Confidence | Comparables-Based Estimate | Estimated | $10M | Strong Confidence |
| 62 | General Galactic | Converts CO2 to clean fuel | $35M–$60M | Partial Confidence | Implied Valuation from Raise | Implied | $10M | Full Confidence |
| 63 | Limenet | CO2-free lime ocean storage | $35M–$60M | Strong Confidence | Implied Valuation from Raise | Implied | $8M | Strong Confidence |
| 64 | Aircela | Air-to-fuel DAC machines | $30M–$60M | Partial Confidence | Comparables-Based Estimate | Estimated | $6M+ | Partial Confidence |
| 65 | CERT | CO2-to-ethylene electrolysis | $25M–$65M | Low Confidence | Proxy-Based Estimate | Estimated | Not provided | Low Confidence |
| 66 | Sirona Technologies | Direct air capture technology | $30M–$55M | Partial Confidence | Comparables-Based Estimate | Estimated | $7M | Strong Confidence |
| 67 | Ucaneo | Biomimetic electrochemical DAC | $30M–$55M | Partial Confidence | Implied Valuation from Raise | Implied | $7M | Partial Confidence |
| 68 | Lithos Carbon | Farmland enhanced weathering | $25M–$60M | Low Confidence | Comparables-Based Estimate | Estimated | $6M | Strong Confidence |
| 69 | Global Thermostat | Atmospheric carbon capture systems | $20M–$60M | Low Confidence | Acquisition Value | Estimated | $70M | Partial Confidence |
| 70 | Airhive | Modular direct air capture | $25M–$50M | Low Confidence | Proxy-Based Estimate | Estimated | $2M | Low Confidence |
| 71 | UP Catalyst | CO2 to battery graphite | $25M–$45M | Partial Confidence | Implied Valuation from Raise | Implied | $7M | Full Confidence |
| 72 | CarbonWorks | Microalgae carbon capture utilization | $25M–$45M | Partial Confidence | Comparables-Based Estimate | Estimated | $12M | Full Confidence |
| 73 | Aerleum | CO2-to-fuels conversion | $24M–$45M | Partial Confidence | Implied Valuation from Raise | Implied | $6M | Full Confidence |
| 74 | Eion | Enhanced rock weathering | $20M–$45M | Low Confidence | Acquisition Value | Estimated | $15M+ | Strong Confidence |
| 75 | Skytree | Modular onsite DAC | $24M–$40M | Partial Confidence | Implied Valuation from Raise | Implied | $6M | Partial Confidence |
| 76 | Oxylus Energy | Converts CO2 to methanol | $20M–$35M | Partial Confidence | Implied Valuation from Raise | Implied | $5M | Full Confidence |
| 77 | pHathom Technologies | Coastal bioenergy carbon storage | $20M–$35M | Partial Confidence | Implied Valuation from Raise | Implied | $3M | Strong Confidence |
| 78 | Carbonaide | CO2-cured carbon-negative concrete | $18M–$35M | Partial Confidence | Implied Valuation from Raise | Implied | $7M | Partial Confidence |
| 79 | Cella | Mineralizes CO2 in rock | $18M–$35M | Low Confidence | Proxy-Based Estimate | Estimated | $3M | Partial Confidence |
| 80 | Mitico | Sorbent-based industrial capture | $18M–$30M | Strong Confidence | Implied Valuation from Raise | Implied | $4M | Full Confidence |
| 81 | Octavia Carbon | Kenyan direct air capture | $16M–$30M | Low Confidence | Implied Valuation from Raise | Implied | $4M | Partial Confidence |
| 82 | NeoCarbon | Cooling-tower DAC retrofits | $15M–$30M | Low Confidence | Implied Valuation from Raise | Implied | $5M | Strong Confidence |
| 83 | Seabound | Ship emissions carbon capture | $15M–$30M | Low Confidence | Comparables-Based Estimate | Estimated | $5M | Strong Confidence |
| 84 | NEG8 Carbon | Electrostatic direct air capture | $12M–$30M | Low Confidence | Proxy-Based Estimate | Estimated | Not provided | Low Confidence |
| 85 | Parallel Carbon | DAC and green hydrogen | $15M–$25M | Low Confidence | Implied Valuation from Raise | Implied | $4M | Partial Confidence |
| 86 | Everest Carbon | ERW measurement sensors | $14M–$24M | Partial Confidence | Implied Valuation from Raise | Implied | $3M | Full Confidence |
| 87 | Skyrenu | Modular DAC systems | $10M–$25M | Low Confidence | Proxy-Based Estimate | Estimated | Not provided | Low Confidence |
| 88 | CyanoCapture | Cyanobacteria CO2 biomanufacturing | $10M–$18M | Partial Confidence | Announced Private Round Valuation | Implied | $2M | Strong Confidence |
| 89 | Soletair Power | Building-integrated direct air capture | $8M–$18M | Low Confidence | Proxy-Based Estimate | Estimated | $3M | Partial Confidence |
| 90 | RedoxNRG | Electrochemical CO2-to-fuel capture | $6M–$15M | Low Confidence | Proxy-Based Estimate | Estimated | Not provided | Low Confidence |
| 91 | Qaptis | Vehicle retrofit CO2 capture | $5M–$12M | Low Confidence | Implied Valuation from Raise | Implied | $1M | Partial Confidence |
| 92 | eChemicles | Electrolyzes CO2 into chemicals | $5M–$10M | Low Confidence | Proxy-Based Estimate | Estimated | $1M | Strong Confidence |
| 93 | Carbon to Stone | Mineralizes CO2 with residues | $4M–$9M | Low Confidence | Proxy-Based Estimate | Estimated | Not provided | Low Confidence |
| 94 | Meloon | Graphene membrane carbon capture | $4M–$9M | Low Confidence | Implied Valuation from Raise | Estimated | Not provided | Low Confidence |
| 95 | Homeostasis | Converts CO2 into graphite | $3M–$7M | Partial Confidence | Implied Valuation from Raise | Implied | $1M | Strong Confidence |
| 96 | Palgae | Algae-based biomaterials | $2M–$6M | Low Confidence | Proxy-Based Estimate | Estimated | Not provided | Low Confidence |
| 97 | ICODOS | Produces e-methanol from CO2 | $2M–$6M | Low Confidence | Proxy-Based Estimate | Estimated | $0M | Low Confidence |
| 98 | Cestore | Carbon removal climate tech | $2M–$5M | Low Confidence | Proxy-Based Estimate | Estimated | Not provided | Low Confidence |
This chart, included in our CCUS market deck, compares the 2026 size of the CCUS market with other markets of similar size
Key valuation trends in the CCUS market
Insights
- The CCUS market is highly concentrated at the top, with the ten largest startups representing roughly 58% of total estimated valuation in this dataset.
- Direct air capture remains the most visible premium category, with Svante, Climeworks, Twelve, Heirloom, Carbon Engineering, and Newlight Technologies all sitting near or above the $1B valuation threshold.
- Mineralization and enhanced weathering form the strongest non-DAC cluster, with Terradot, 44.01, Carbon Upcycling, Paebbl, Alt Carbon, and Limenet together representing more than $1B in midpoint valuation.
- Carbon Engineering is still the clearest large exit benchmark in the CCUS market, with its $1.1B acquisition value setting an important reference point for strategic buyer appetite.
- Aircapture and Terradot both show strong valuation efficiency, with midpoint valuations that are more than 6x the capital raised by each company.
- Ocean and marine carbon removal startups are still smaller than the leading DAC names, but companies such as Captura, Ebb Carbon, Equatic, Planetary Technologies, Gigablue, and Limenet show growing investor interest.
- Concrete, cement, and mineral-materials companies are becoming a serious utilization category, with CarbonCure, Solidia Technologies, Carbon Upcycling, Paebbl, Blue Planet Systems, CarbiCrete, CarbonBuilt, and Carbonaide spread across the ranking.
This chart, included in our CCUS market deck, shows why CarbonCure stands out in CCUS
A few word about our methodology
As you can see, we built a database that ranks startups in the CCUS market based on their current valuation.
Estimating startup valuations is not always straightforward. Many CCUS companies do not publicly disclose their valuation, and the available information can vary widely depending on the company and its stage.
To build this ranking, we applied a structured valuation methodology and cross-checked information across multiple reliable sources.
Whenever possible, we relied on direct disclosures. These include announced valuations from completed funding rounds, public filings for listed companies, or official acquisition prices.
When a CCUS company is publicly listed, we use its current market capitalization as the reference valuation.
If a company was acquired and no independent valuation can reasonably be estimated today, we use the acquisition price as the main reference point.
When a CCUS startup recently raised capital but the valuation was not disclosed, we estimate the implied valuation using typical dilution levels for that stage of fundraising.
In some cases, we also estimate valuations using operating metrics such as revenue, ARR, project pipeline, offtake agreements, carbon removal credit sales, or customer traction, combined with valuation multiples from comparable companies in the same market.
When direct financial data is not available, we may rely on carefully selected comparable startups and other signals such as hiring growth, investor quality, technology readiness, commercial partnerships, project deployment, or product traction.
All estimates follow a strict evidence hierarchy. Recent funding rounds with announced valuations carry the most weight, followed by strong operating metrics and comparable company analysis.
We also carefully evaluate the age of every data point. Recent information carries more weight, while older data is treated cautiously and adjusted conservatively when necessary.
Whenever information is uncertain or incomplete, we clearly distinguish between confirmed facts and reasonable inferences.
Because valuation data is not always fully public, each startup in the ranking is assigned a confidence level based on the reliability, recency, and consistency of the available evidence.
Full confidence means the valuation is supported by strong and recent evidence. Strong confidence means the estimate is well supported but includes minor inference. Partial confidence means the estimate relies more heavily on indirect signals. Low confidence means available information is limited or inconsistent.
When confidence is lower, we take a more conservative approach by widening the valuation range. This helps reflect the uncertainty and increases the probability that the true valuation falls within the estimated range.
This reflects how we conduct all our research, including the work behind our report covering the CCUS market.
In a world where LLMs hallucinate and unreliable information is everywhere, our goal is simple: provide data you can trust.
If you want the full detail on a specific valuation estimate, feel free to contact us and we will gladly explain.
Finally, know that we update the dataset once per month, so come back here if you need fresh information.
This chart, included in our CCUS market deck, illustrates yearly funding for CCUS startups
Related blog posts
- What is the latest news in the CCUS market?
- What are the latest funding developments in the CCUS market?
- What is new in the CCUS market?
- How funding activity has evolved in the CCUS market
- What are the fundraising trends in the CCUS market?
