Propeller
VC Fund
Boston, United States
Propeller is a VC fund in Boston focused on Information Technology and Software. Propeller operates as a climate-tech fund that invests in and builds ocean-climate companies.
- Total investments:
- 14
- Last investment:
- Lead investor:
- 43%
- Fund size:
- $100M
- Last fund:
Last updated:
For AI agents: llms.txt
Industries Propeller invests in
Stages Propeller invests in
Countries Propeller invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Round size
- Seed
- $1.3M–$13M
- Pre-Seed
- $1.5M–$4.4M
- Series A
- $8M–$60M
Investment Focus
Industry
- Information Technology 3 (21%)
- Software 2 (14%)
- CleanTech 2 (14%)
- Manufacturing 2 (14%)
- Fuel 1 (7%)
Stage
- Seed 9 (64%)
- Pre-Seed 3 (21%)
- Series A 2 (14%)
Country
- United States 8 (57%)
- India 1 (7%)
- Israel 1 (7%)
- Saudi Arabia 1 (7%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Brian Halligan
Co-founder & Partner
|
Co-founder & Partner | Total investments: 19 | Find email | |
Kevin Walsh
Entrepreneur In Residence
|
Entrepreneur In Residence | Total investments: 0 | Find email | |
Devdutt Yellurkar
Co-founder & Partner
|
Co-founder & Partner | Total investments: 62 | Find email |
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Blaze Energy Technologies is a manufacturing company that develops technologies to adopt alternative fuels through existing engines. | $6.5M / Seed / Oct 06, 2026 | ||
|
pHathom Technologies
|
$4M / Seed / Feb 05, 2026 | ||
| Nexxa.ai builds Multi-Agent Systems for the heavy industries the world relies on powered by a combination of computer use AI and AI tools like ml/computer vision. Tech companies have automated workflows for years—but industrial operations still rely on massive human labor forces to handle processes in fragmented systems. Human operatedmission-critical workflows in non-tech industries far exceed the number in tech which leads to a massive opportunity for automation. Cookie-cutter solutions & agent builders don’t solve the problem due to lack of technical expertise and custom tools in these industries. Nexxa specialized AI agents take over the work of entire teams in industrial operations. Our computer use agents integrate with legacy systems and execute complex processes in the existing infrastructure of our customers. We build proprietary computer vision models that augment existing computer use agents so that the models understand the custom software environments of our customers. | $9M / Seed / Jan 21, 2026 | ||
| Vatn Systems builds affordable autonomous underwater vehicles that act in cooperative swarms.At the core of Vatn's R&D efforts is advanced navigation software that is effective in GPS, vision, and comms compromised environments while reducing hardware costs. | $60M / Series A / Dec 10, 2025 | ||
| SuperGround is a Finnish industrial partner for global food production companies who aim to make their production instantly more efficient and sustainable.As food production companies face rapidly changing food markets and accelerating climate change, our scalable food processing solution upcycles side stream materials to produce high-qualityfood products for a more sustainable future.We offer customizable plans designed to minimize food waste and reduce emissions, providing processing partners with an efficient and responsible solution. | $1.3M / Seed / Sep 04, 2025 | ||
| Nexxa.ai builds Multi-Agent Systems for the heavy industries the world relies on powered by a combination of computer use AI and AI tools like ml/computer vision. Tech companies have automated workflows for years—but industrial operations still rely on massive human labor forces to handle processes in fragmented systems. Human operatedmission-critical workflows in non-tech industries far exceed the number in tech which leads to a massive opportunity for automation. Cookie-cutter solutions & agent builders don’t solve the problem due to lack of technical expertise and custom tools in these industries. Nexxa specialized AI agents take over the work of entire teams in industrial operations. Our computer use agents integrate with legacy systems and execute complex processes in the existing infrastructure of our customers. We build proprietary computer vision models that augment existing computer use agents so that the models understand the custom software environments of our customers. | $4.4M / Pre-Seed / Jul 21, 2025 | ||
| Orpheus Ocean is dedicated to deep ocean exploration through scalable, autonomous robots. Their mission is to make the ocean's depths accessible for research, conservation, and resource management. They provide flexible and cost-effective solutions for deep ocean intelligence, utilizing technology to explore the most extreme areas on Earth. | $2.8M / Pre-Seed / Mar 03, 2025 | ||
| Vema Hydrogen is a pioneering clean hydrogen production company. It helps to fight the enormous decarbonization issue. | $13M / Seed / Feb 18, 2025 | ||
| We are building a way to let your SaaS product's users chat with your product functionality and execute stuff by text, a kind of AI copilot that can action. | $1.5M / Pre-Seed / Jan 13, 2025 | ||
| OTO is an All-in-one Shipping Management Software for Online Businesses & OmniChannel Brands to Ship, Manage, Track, Return & Analyze their online orders with 200+ Shipping Carriers from 1 consolidated dashboard.OTO's SaaS solution helps businesses to automate and streamline all their shipping operations through combined 6 systemsincluding: Order Management System (OMS), Warehouse Management System (WMS), Last-Mile Management System (LMS), Drivers Management System (DMS), Returns Management System (RMS) & Customer Notification System (CNS). On the other hand, their Aggregator solution helps the the small and medium businesses (SMBs) selling online or offline to buy local and international shipping labels directly from OTO with no contracts needed with the shipping carriers with the best rates available in the market.OTO's solutions were designed to help their clients ship faster, cheaper and better, but saving them thousands of hours and millions in operational costs. | $8M / Series A / Jul 22, 2024 | ||
| See all 14 investments → | |||
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FAQ
What does Propeller invest in?
Propeller invests primarily in Information Technology, Software and CleanTech startups, most often at Seed and Pre-Seed stage. Most of the 14 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What round sizes does Propeller invest in?
Propeller typically joins rounds of $1.3M–$13M at Seed, $1.5M–$4.4M at Pre-Seed and $8M–$60M at Series A. These are whole funding-round sizes, not Propeller's own check, which is rarely disclosed: the 10th–90th percentile of the confirmed public funding rounds Propeller took part in.
How do I contact Propeller?
Public channels for Propeller include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
Who are the partners at Propeller?
The team at Propeller includes Brian Halligan (Co-founder & Partner), Kevin Walsh (Entrepreneur In Residence) and Devdutt Yellurkar (Co-founder & Partner). The Team section lists each member with their title, investment count and links.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Oct 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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