Pioneer
VC firm · Seattle, WA
SEC-registered adviser
Venture firm based in Seattle, WA. 6 deal vehicles (SPVs) filed with the SEC since Jan 2023.
“500+ Y Combinator alumni investing in the top YC startups.” (from the firm’s website)
- Stages
- Pre-seed, Seed
- Typical check (est.)
- $275K–$850K
- Latest fund
- None on file
- Last verified activity
- Oct 2023
Focus
AI & MLHealthcareBiotech & PharmaRecent portfolio activity
- May 2023
U.S.
SPV
Funds and vehicles on SEC file
- May 2025
Pioneer Fund III (U.S.) L.P.
Deal vehicle · $39.5M offering
- Oct 2023
Pioneer Opportunity Fund, LP - B4
Deal vehicle · $865K offering
- Aug 2023
Pioneer Opportunity Fund, LP - B2
Deal vehicle · $1.9M offering
- Jul 2023
Pioneer Opportunity Fund, LP - B3
Deal vehicle · $1.93M offering
- Mar 2023
Pioneer Fund Access Fund LP, a series of Pioneer Master Fund LP
Deal vehicle · $3.39M offering
- Jan 2023
Pioneer Opportunity Fund, LP - B1
Deal vehicle · $2.55M offering
Sources
- SEC Form D: Pioneer Fund III (U.S.) L.P.May 6, 2025
- SEC Form D: Pioneer Opportunity Fund, LP - B4Oct 11, 2023
- SEC Form D: Pioneer Opportunity Fund, LP - B2Aug 21, 2023
- SEC Form D: Pioneer Opportunity Fund, LP - B3Jul 28, 2023
- SEC Form D: Pioneer Fund Access Fund LP, a series of Pioneer Master Fund LPMar 3, 2023
- SEC Form D: Pioneer Opportunity Fund, LP - B1Jan 12, 2023
- SEC adviser record: Pioneer FUNDMar 26, 2026
- Firm websiteOct 12, 2026
Profile last verified Oct 12, 2026. Is this you? Correct or remove this profile.