GreyMatter Capital
San Francisco, California, United StatesFounded 2021
GreyMatter Capital is a venture capital firm dedicated to empowering early-stage founders who are building the future of mental and behavioral health. They invest across three key areas: mental health and wellness, behavioral healthcare delivery, and frontier technologies such as neurotech.
100% of their portfolio is in Healthcare. Deal activity decreased year-over-year (1 deals in the last 12 months vs 3 prior). Their most common stage is series-a (71% of deals). Average disclosed round size is $21.9M (across 7 rounds with reported amounts).
Portfolio
7
Fund Size
$25M
Top Stage
Series A
Last 12 Mo
1
Portfolio Breakdown
Stage Distribution
Investment Activity
DealsAvg Round Size
Portfolio
7 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 FamilyWell Health | Series A | $8M | Nov 2025 |
| NNema Health | Series A | $14.5M | Jan 2025 |
 Kyan Health | Series A | $16.7M | Nov 2024 |
 Healthie | Series B | $23M | Oct 2024 |
 Pelago | Series C | $58M | Mar 2024 |
 Blackbird Health | Series A | $17M | Feb 2024 |
| Healthie | Series A | $16M | Jul 2022 |
Top Co-Investors
.406 Ventures2 shared
Velvet Sea Ventures2 shared
New Markets Venture Partners1 shared
TCV1 shared
Deerfield1 shared
CVS Health1 shared
Optum Ventures1 shared
Swisscom Venture1 shared
Founderful1 shared
Joyance Partners1 shared
naturalX Health Ventures1 shared
Watershed1 shared
Builders VC1 shared
Atomico1 shared
Octopus Ventures1 shared
Y Combinator1 shared
Eight Roads Ventures1 shared
Frist Cressey Ventures1 shared
Last updated: 15 April 2026