Boston Seed Capital is an early-stage venture capital firm based in Wellesley Hills, Massachusetts, founded in 2010. The firm invests in seed-stage companies across consumer e-commerce, data/machine learning, B2B SaaS, and infrastructure sectors.
They made 5 investments in the last 12 months. Their most common stage is seed (59% of deals). Average disclosed round size is $21.4M (across 55 rounds with reported amounts).
Portfolio
46
Fund Size
$60M
Top Stage
Seed
Last 12 Mo
5
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
59 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 EnFi | Series A | $15M | Feb 2026 |
 BoomBand | Seed | $4M | Feb 2026 |
 VulcanForms | Series D | $220M | Jan 2026 |
 Splash | Series B | $14.5M | Oct 2025 |
| SSplash Sports | Series B | $14.5M | Oct 2025 |
| EnFi | Seed | $7.5M | Jan 2024 |
| PPatented | Pre-Seed | $4M | Jun 2023 |
 Patented.ai | Pre-Seed | $4M | Jun 2023 |
| PPickleball4America | Seed | — | Mar 2023 |
 Sotero | Seed | $8M | Jul 2022 |
| VulcanForms | Growth | $355M | Jul 2022 |
 Electives | Series A | $8M | Mar 2022 |
| IInSpace Proximity | Seed | $6M | Jun 2021 |
 Wunderite | Seed | $3M | Apr 2021 |
 Alyce | Series B | $30M | Apr 2021 |
 Alyce | Series A | $11.5M | Apr 2021 |
 Torii | Series A | $10M | Feb 2021 |
 MomentRanks | Seed | $1.7M | Jan 2021 |
| Alyce | Series B | $30M | Jan 2021 |
| Alyce | Series B | $30M | Jan 2021 |
 Knock | Seed | $5M | Jan 2021 |
 Knock | Seed | — | Jan 2021 |
 Perch | Growth | $123.5M | Oct 2020 |
 Flipside Crypto | Seed | $7.1M | Sep 2019 |
 Flipside Crypto | Seed | $7.1M | Sep 2019 |
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Top Co-Investors
Techstars11 shared
Accomplice9 shared
General Catalyst7 shared
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Morningside5 shared
Golden Ventures5 shared
NextView Ventures5 shared
Visible Ventures4 shared
True Ventures4 shared
Atlas Venture4 shared
Manifest Investment Partners3 shared
Resolute Ventures3 shared
Avon Ventures3 shared
Converge3 shared
Gaingels3 shared
Digital Currency Group3 shared
Evolution Equity Partners3 shared
Velvet Sea Ventures3 shared
Service Provider Capital3 shared
500 Global3 shared
Last updated: 20 October 2026