Oakhouse Partners is an early-stage venture capital firm that supports companies applying breakthrough technologies to radically improve millions of lives. Formerly known as Subtraction Capital, the firm was founded by Jason Portnoy in 2013.
38% of their portfolio is in Construction. Average disclosed round size is $55.0M (across 17 rounds with reported amounts).
Portfolio
7
Fund Size
$50M
Top Stage
Series A
Last 12 Mo
0
Team
EG
Edward Glassman
Founder and Managing Partner
JP
Jason Portnoy
Managing Partner
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
21 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 ICON | Series C | $56M | Feb 2025 |
| ICON | Series C | $207M | Aug 2021 |
| ICON | Series B | $207M | Aug 2021 |
| IICON Technology | Series B | — | Aug 2021 |
| IIcon Technology Inc | Series B | — | Aug 2021 |
| ICON | Unknown | $207M | Jan 2021 |
| IIcon Technology Inc | Series B | — | Jan 2021 |
| ICON | Series A | $35M | Aug 2020 |
| IICON Technology | Series A | $35M | Aug 2020 |
| IIcon Technology Inc | Series A | $35M | Aug 2020 |
| ICON | Series A | $35M | Jan 2020 |
| IIcon Technology Inc | Series A | $35M | Jan 2020 |
| EElevate Labs | Series B | $7.1M | Sep 2019 |
 Voatz | Series A | $7M | Jun 2019 |
 Zipline | Series B | $25M | May 2019 |
 RevenueCat | Seed | $1.5M | Oct 2018 |
| ICON | Seed | $9M | Oct 2018 |
| IICON Technology | Seed | $9M | Oct 2018 |
| ICON | Seed | $9M | Jan 2018 |
| IIcon Technology Inc | Seed | — | Jan 2018 |
| RevenueCat | Series A | $15M | — |
Top Co-Investors
Moderne Ventures11 shared
Citi Ventures11 shared
Norwest Venture Partners7 shared
8VC6 shared
BOND6 shared
Fifth Wall6 shared
India Quotient6 shared
Wavemaker Partners5 shared
Ironspring Ventures5 shared
Vulcan Capital3 shared
Felicity Global Capital2 shared
LEN X2 shared
Y Combinator2 shared
SaaStr Fund2 shared
Techstars2 shared
MVP Ventures1 shared
Overmatch Ventures1 shared
Tiger Global Management, LLC1 shared
FundersClub1 shared
Ensemble VC1 shared
Last updated: 8 September 2026