Buff Gold Ventures is a venture capital firm that focuses on early-stage investments (Pre-Seed, Seed, and Series A) in deep tech startups affiliated with the University of Colorado Boulder. The firm seeks disruptive technologies that address large-scale global challenges, particularly in sustainability and energy efficiency, and provides strategic capital, hands-on collaboration, and mentorship to its portfolio companies.
67% of their portfolio is in Biotech & Life Sciences. They made 1 investments in the last 12 months. Their most common stage is series-a (67% of deals). Average disclosed round size is $31.3M (across 3 rounds with reported amounts).
Portfolio
3
Fund Size
—
Top Stage
Series A
Last 12 Mo
1
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
3 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Think Bioscience | Series A | $55M | Jan 2026 |
 LongPath Technologies | Series A | $22M | Dec 2022 |
| Think Bioscience | Seed | $17M | Aug 2022 |
Top Co-Investors
Innovation Endeavors2 shared
AV8 Ventures2 shared
Janus Henderson Investors1 shared
MBX Capital1 shared
YK Bioventures1 shared
Xora Innovation1 shared
Last updated: 16 April 2026