About Decarbonization Partners
Decarbonization Partners is a venture capital firm founded in 1999. It is primarily based out of New York City, United States. As of Jul 2026, Decarbonization Partners is an active investor, having invested in 13 companies, with 6 new investments in the last 12 months. It primarily invests in Series D round in United States based startups. Its investments are spread across a wide range of sectors from Environment Tech to Energy Tech and Enterprise Applications. Most recently it participated in the $***** Series D round of Asuene Overall, Decarbonization Partners portfolio has seen 1 unicorn, namely Osapiens. A lot of funds co-invest with Decarbonization Partners, with names like Alibaba Cloud sharing a substantial percentage of its portfolio. Decarbonization Partners has team of 24 people including 12 partners.Key Metrics
Team Members
Portfolio Count
Portfolio Sectors
Portfolio Locations
Rounds of Entry
Series C, Series D & 1 more
Portfolio Unicorns
Portfolio Soonicorns
Decarbonization Partners' List of Top Investments
Decarbonization Partners has a portfolio of 13 companies, one of which is a Unicorn. Their most notable investments are in EPG and Carbon Direct.Their portfolio spans across United States, Canada, China and 4 more locations. They have invested in Environment Tech, Energy Tech, Enterprise Applications and 9 other sectors, across stages such as Series C, Series D and 1 more. Here is the list of top investments by Decarbonization Partners:1. Antora
Manufacturer of thermal battery. It stores energy as heat in blocks of solid carbon to power global industry. Its thermophotovoltaic technology converts light from the hot carbon blocks into electricity with no moving parts.
Key facts about Antora
- Founded Year: 2018
- Location: Sunnyvale (United States)
- Valuation: $*****
- Stage: Series C
- Total Funding till date: $822M
- Employee Count: 271 as on Aug 31, 2026
- Investors: Salesforce Ventures, Temasek and 29 Others
- Latest Funding Round: Series C, Jul 20, 2026, $*****
- Highlight: Editors' Pick
Manufacturer of advanced silicon battery for clean energy solutions. It provides users with a company offering silicon battery technology, aiming to create a world where everything that can run on rechargeable batteries does. The company's innovative silicon battery materials are poised to revolutionize the energy storage industry, driving the electrification of everything.
Key facts about Group14 Technologies
Provider of science-backed carbon management solutions for emission reduction and removal. The company offers advisory services leveraging expertise in science, data, and policy. It provides access to carbon removal credits across nature-based, hybrid, and engineered solutions. The company also offers a platform for carbon footprints, reduction strategies, and removal portfolios.
Key facts about Carbon Direct
- Founded Year: 2019
- Location: New York (United States)
- Stage: Series C
- Total Funding till date: $60.8M
- Employee Count: 128 as on Aug 31, 2026
- Investors: Impact Engine, KI capital and 2 Others
- Latest Funding Round: Series C, Aug 17, 2022, $*****
- Highlight: Editors' Pick
4. Monolith
Manufacturer of carbon black and hydrogen products for various industrial uses. The company produces carbon black, a material used in tires, plastics, and coatings. It also produces hydrogen, which has applications in energy, transportation, and industrial processes. The company supplies these products to a range of industries. It focuses on the production and distribution of these materials.
Key facts about Monolith
- Founded Year: 2012
- Location: Lincoln (United States)
- Valuation: $*****
- Stage: Series D
- Total Funding till date: $593M
- Employee Count: 161 as on Aug 31, 2026
- Investors: SK, Azimuth Capital Management and 11 Others
- Latest Funding Round: Series D, Sep 26, 2024, $*****
- Highlight: Editors' Pick
5. ConnectDER
Developer of meter socket adapters for solar, battery, and EV installs. These adapters facilitate home energy setups, reducing costs for installers and homeowners. The adapters are designed for easy connection of solar panels or EV chargers without electrical panel upgrades. The products are UL-Listed and compliant with NEC standards, requiring installation by a licensed electrician.
Key facts about ConnectDER
- Founded Year: 2011
- Location: Falls Church (United States)
- Stage: Series D
- Total Funding till date: $72.5M
- Employee Count: 61 as on Aug 31, 2026
- Investors: Evergy Ventures, Clean Energy Ventures and 21 Others
- Latest Funding Round: Series D, Nov 18, 2024, $*****
- Highlight: Editors' Pick
Decarbonization Partners' Year-on-Year Investment Trends
Decarbonization Partners has invested in 13 companies over the last 4 years, with an average of 4 new investments annually in the last 3 years. In 2025, it made 3 investments, while as of Jul 2026, it has made 5 investments in this year. Its most recent first time investment was in Asuene.Year | No. of Investments | ||
|---|---|---|---|
1st Round | Follow-on | Total | |
2026 (YTD) | 5 | 0 | 5 |
2025 | 3 | 0 | 3 |
2024 | 3 | 0 | 3 |
2023 | 0 | 0 | 0 |
2022 | 1 | 0 | 1 |
Decarbonization Partners' Investments by Stage
Decarbonization Partners has made 6 investments in Series C stage with an average round size of $195M, 4 investments in Series D stage with an average round size of $180M and 2 investments in Series B stage with an average round size of $100M.Stage of entry | No. of Investments |
|---|---|
Series C | 6 |
Series D | 4 |
Series B | 2 |
Note: We have considered here, only first round of investments
Decarbonization Partners' Investments by Sector
Decarbonization Partners has a diverse portfolio, with companies operating in the Sustainability Tech, Environment Tech, Energy Tech, High Tech and Enterprise Applications. Notably, it has invested in 11 Enterprise (B2B) companies, 11 Tech companies, 5 Software companies and at least 4 companies focusing on Tech hardware.Sector | No. of Investments |
|---|---|
Sustainability Tech | 8 |
Environment Tech | 7 |
Energy Tech | 5 |
High Tech | 5 |
Enterprise Applications | 3 |
Others | 8 |
Note: We have considered here, only first round of investments
Decarbonization Partners' Investments by Geography
Decarbonization Partners has made most investments in United States (5), followed by Canada where it has made 2 investments.Country | No. of Investments |
|---|---|
United States | 5 |
Canada | 2 |
China | 1 |
Germany | 1 |
Japan | 1 |
Others | 2 |
Note: We have considered here, only first round of investments
Decarbonization Partners' recent investments
Decarbonization Partners has made 5 investments in 2026 so far. Asuene and Antora are the latest among them.Here are the most recent investments by Decarbonization Partners:
Filter this listDate | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Jul 23, 2026 | Japan | Series D | 8722 | [+7] | |
Jul 20, 2026 | United States | Series C | 6560 | [+12] | |
Mar 30, 2026 | Singapore | Series B | 4477 | ||
Mar 30, 2026 | China | Series B | 6411 | ||
Jan 16, 2026 | Germany | Series C | 2205 | [+3] |
Unicorns in Decarbonization Partners' Portfolio
Decarbonization Partners has 1 unicorn in its portfolio - Osapiens. The most recent unicorn in their portfolio is Osapiens which became a unicorn in 2026.Here is a list of unicorns in Decarbonization Partners' portfolio:
Tracxn Score | Company | Short Description | Founded year | Sector | Location | Company Stage | First Investment/ Acquisition Details |
|---|---|---|---|---|---|---|---|
55 | Provider of a platform for supply chain transparency and efficiency | 2018 | Mannheim | Series C | potijfs |
Team profile of Decarbonization Partners
Decarbonization Partners has a team of 24 members including 12 Partners and 4 Principals located in United States, United Kingdom and 3 more locations. Decarbonization Partners' team sits on the board of 1 company.Here is a list of top team members in Decarbonization Partners:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | Singapore | - | - | |
Partner | San Francisco | - | ||
Partner | Houston | - | - | |
Partner | Singapore | - | - | |
Partner | Paris | - | - | |
Partner | London | - | - | |
Partner | Singapore | - | - | |
Partner | Houston | - | - | |
Partner | New York | - | - | |
Partner | Ireland | - | - | |
Partner | London | - | - |
Co-investors of Decarbonization Partners
Over the past 4 years, 146 investors have co-invested in Decarbonization Partners's portfolio companies. This includes funds and angels.
- Invested before Decarbonization Partners: OSTI, DOE and 110 others have invested in rounds before Decarbonization Partners. There are 2 companies where OSTI has invested before Decarbonization Partners and 2 companies where DOE has invested before Decarbonization Partners.
- Top Co-investors of Decarbonization Partners: 34 investors entered a company along with Decarbonization Partners. These include investors like Alibaba Cloud (2 companies).
Recent News related to Decarbonization Partners
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Asuene Secures ¥13.5 Billion Funding Round Led by Decarbonization PartnersSogyo Techo•Jul 24, 2026•Asuene, Decarbonization Partners
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Decarbonization Partners acquires Osapiens Inc., Dover (USA)FinanzNachrichten•Jan 30, 2026•Decarbonization Partners, Osapiens
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osapiens Secures US$ 100 Million To Advance Sustainable Growth SoftwareVentureburn•Jan 14, 2026•Osapiens, Armira, BlackRock, Temasek and 5 others
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Nonbinding deal with Microsoft would allow OpenAI to restructureSpringfield Business Journal•Sep 12, 2025•OpenAI, Microsoft, Decarbonization Partners, Group14 Technologies and 5 others
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Group14 Closes US$463M Series D Funding, Acquires BAM Factory from SK, Inc.PR Newswire•Aug 20, 2025•Group14 Technologies, SK, SK, SK On and 7 others
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Orennia completes Series C funding led by Decarbonization PartnersFinancial Post•Jan 21, 2025•Orennia, Decarbonization Partners
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ConnectDER Raises Series D FundingFinSMEs•Dec 03, 2024•ConnectDER, BlackRock, Temasek, MassMutual Ventures and 8 others
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Monolith Announces Additional Funding from Investor ConsortiumPR Newswire•Sep 27, 2024•Monolith, Cornell Capital, The Rise Fund, Warburg Pincus and 3 others
