About Propeller
Propeller is a venture capital firm founded in 2022. It is primarily based out of Boston, United States. As of Feb 2026, Propeller is an active investor, having invested in 13 companies, with 1 new investment in the last 12 months. It primarily invests in Seed round in United States based startups. Its investments are spread across a wide range of sectors from Enterprise Applications to Environment Tech and High Tech. Most recently it participated in the $***** Seed round of Phathom A lot of funds co-invest with Propeller, with names like Grantham Foundation sharing a substantial percentage of its portfolio. Propeller has team of 6 people including 4 partners.Key Metrics
Team Members
Portfolio Count
Portfolio Sectors
Portfolio Locations
Rounds of Entry
Seed, Series A & 1 more
Deals in last 12 months
Propeller's List of Top Investments
Propeller has a portfolio of 13 companies. Their most notable investments are in SuperGround and Vema.Their portfolio spans across United States, United Kingdom, Finland and 1 more locations. They have invested in Enterprise Applications, Environment Tech, High Tech and 11 other sectors, across stages such as Seed, Series A and 1 more. Here is the list of top investments by Propeller:1. Vema
Developer of engineered mineral hydrogen production technology. This technology stimulates naturally occurring subsurface reactions to create hydrogen in a controlled and scalable manner. The process utilizes catalysts and optimized field placement to achieve cost-effective hydrogen production. It offers a sustainable and environmentally friendly alternative to traditional hydrogen production methods. The technology is designed for predictable and adaptable hydrogen flows to meet market demands.
Key facts about Vema
- Founded Year: 2024
- Location: Wilmington (United States)
- Stage: Seed
- Total Funding till date: $13M
- Employee Count: 23 as on Aug 31, 2026
- Investors: Grantham Foundation, Pace Ventures and 3 Others
- Latest Funding Round: Seed, Feb 18, 2025, $*****
- Highlight: Editors' Pick
2. Vatn Systems
Developer of autonomous underwater vehicles. It also offers navigation software to control and manage the systems.
Key facts about Vatn Systems
- Founded Year: 2023
- Location: Portsmouth (United States)
- Stage: Series A
- Total Funding till date: $76.5M
- Employee Count: 88 as on Jul 31, 2026
- Investors: Blue Collective, Hanwha and 21 Others
- Latest Funding Round: Series A, Dec 10, 2025, $*****
3. Blue Energy
Producer of nuclear energy. Company components are prefabricated in the shipyard environment before being transported to their final locations for assembly. Company builds plants in shipyards, which are centralized locations equipped with permanent workforces and automated machinery.
Key facts about Blue Energy
- Founded Year: 2023
- Location: Edinburgh (United Kingdom)
- Stage: Series B
- Total Funding till date: $425M
- Employee Count: 80 as on Aug 31, 2026
- Investors: Starlight Ventures, Tamarack Global and 7 Others
- Latest Funding Round: Series B, Jul 16, 2026, $*****
4. Aikido
Develops offshore floating data centers powered by renewable energy for large-scale AI and cloud computing. Its platform technology combines prefabricated data halls, offshore wind power, battery systems, and modular marine structures to enable rapid deployment at floating sites. It focuses on energy-efficient, resilient, and scalable data center infrastructure that can be deployed using existing offshore wind, oil and gas, manufacturing, and port infrastructure.
Key facts about Aikido
- Founded Year: 2022
- Location: San Francisco (United States)
- Stage: Series A
- Total Funding till date: $4M
- Employee Count: 8 as on Aug 31, 2026
- Investors: Cisco, Sabanc Climate Tech and 4 Others
- Latest Funding Round: Grant (prize money), Jul 01, 2024, $*****
5. Nexxa
Agentic AI automation for industrial and technical operations. The platform leverages a multi-agent AI architecture to automate complex operational workflows by automatically defining success criteria and execution paths using AI. It automates design work and B2B sales process by generating personalized executive briefings and value propositions, to automate sales workflows eventually. It targets system-critical industries with systems such as finance, procurement, and engineering, enabling real-time decision-making and intelligent process management through self-learning AI.
Key facts about Nexxa
- Founded Year: 2024
- Location: Sunnyvale (United States)
- Stage: Seed
- Total Funding till date: $13.4M
- Employee Count: 38 as on Aug 31, 2026
- Investors: SBI Group, Augment Ventures and 9 Others
- Latest Funding Round: Seed, Jan 21, 2026, $*****
Propeller's Year-on-Year Investment Trends
Propeller has invested in 13 companies over the last 3 years, with an average of 4 new investments annually in the last 3 years. In 2025, it made 6 investments, while as of Feb 2026, it has made 1 investment in this year. Its most recent first time investment was in Phathom and most recent follow-on round was in Vatn Systems.Year | No. of Investments | ||
|---|---|---|---|
1st Round | Follow-on | Total | |
2026 (YTD) | 1 | 0 | 1 |
2025 | 5 | 1 | 6 |
2024 | 6 | 0 | 6 |
2023 | 1 | 0 | 1 |
Propeller's Investments by Stage
Propeller has made 9 investments in Seed stage with an average round size of $6.06M, 3 investments in Series A stage with an average round size of $19M and 1 investment in Series B stage with an average round size of $13.2M.Stage of entry | No. of Investments |
|---|---|
Seed | 9 |
Series A | 3 |
Series B | 1 |
Note: We have considered here, only first round of investments
Propeller's Investments by Sector
Propeller has a diverse portfolio, with companies operating in the Enterprise Applications, Environment Tech, Sustainability Tech, Energy Tech and High Tech. Notably, it has invested in 9 Enterprise (B2B) companies, 9 Tech companies, 6 Software companies and at least 3 companies focusing on Saas.Sector | No. of Investments |
|---|---|
Enterprise Applications | 6 |
Environment Tech | 4 |
Sustainability Tech | 4 |
Energy Tech | 3 |
High Tech | 3 |
Others | 13 |
Note: We have considered here, only first round of investments
Propeller's Investments by Geography
Propeller has made most investments in United States (8), followed by United Kingdom where it has made 2 investments.Country | No. of Investments |
|---|---|
United States | 8 |
United Kingdom | 2 |
Finland | 1 |
Saudi Arabia | 1 |
Note: We have considered here, only first round of investments
Propeller's recent investments
Propeller has made 1 investments in 2026 so far - Phathom.Here are the most recent investments by Propeller:
Filter this listDate | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Feb 05, 2026 | United States | Seed | 7825 | ||
Dec 10, 2025 | United States | Series A | 1959 | ||
Sep 15, 2025 | - | Series B | 4087 | [+7] | |
Sep 04, 2025 | Finland | Seed | 9299 | [+1] | |
Jul 21, 2025 | United States | Seed | 4635 | [+8] |
Team profile of Propeller
Propeller has a team of 6 members including 4 Partners located in United States. Propeller's team does not sit on the board of any company as of now.Here is a list of all team members in Propeller:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | Los Angeles | - | ||
Partner | Miami Beach | - | - | |
Partner | Cambridge | - | ||
Partner | Boston | - | - |
Co-investors of Propeller
Over the past 3 years, 76 investors have co-invested in Propeller's portfolio companies. This includes funds and angels.
- Invested before Propeller: Hatch Blue, Middle East Venture Partners and 3 others have invested in rounds before Propeller. There is 1 company where Hatch Blue has invested before Propeller and 1 company where Middle East Venture Partners has invested before Propeller.
- Top Co-investors of Propeller: 60 investors entered a company along with Propeller. These include investors like Grantham Foundation (2 companies).
- Invested after Propeller: A total of 11 investors have invested in Propeller's portfolio after their investments. Top Investors include Bravo Victor Venture Capital (1 company), Hanwha (1 company) and Geodesic Capital (1 company).
Recent News related to Propeller
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pHathom Technologies Raises $4M in FundingFinSMEs•Feb 06, 2026•Carmeuse, Invest Nova Scotia, Propeller, New Brunswick Innovation Foundation and 1 other
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Ciphero Secures $2.5M to Develop AI-Native Security for Agentic WorkflowsAlleyWatch•Dec 18, 2025•Chingona Ventures, Sovereign's Capital, , BlueWing and 8 others
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Hanwha Group Invests in U.S. Underwater Drone DeveloperBusinesskorea•Dec 11, 2025•Hanwha, Bravo Victor Venture Capital, Lockheed Martin, Trousdale Ventures and 11 others
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Clarity Secures $12M Funding to Expand AI Teams for Customer Experience PlatformMrWeb•Sep 16, 2025•Prosus, STV, Neo, Oraseya Capital and 8 others
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SuperGround Secures €3.65M & Ocean Next Partnership to Expand Alternative SeafoodThefishsite•Sep 04, 2025•SuperGround, Propeller, Hatch Blue, CHECK24
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Vema Hydrogen secures $13m to bring $1/kg hydrogen to market2 View•Feb 21, 2025•VEMA Solar, Grantham Foundation, Pace Ventures, Zero Carbon Capital and 2 others
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Vema Hydrogen Raises $13M in Seed FundingFinSMEs•Feb 18, 2025•Vema, Propeller, Pace Ventures, Extantia and 3 others
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This German e-fuel tech startup taps €2.3M funding to make green jet fuel a realityTech Funding News•Feb 12, 2025•Spark e-Fuels, Nucleus Capital, Zero Carbon Capital, IBB Ventures and 8 others
