Sigma Prime Ventures

Sigma Prime Ventures accounts for 3 tracked companies with verified cap-table data, 3 of which disclose round sizes totalling $385M. The median disclosed raise is $131M, and the largest is Ceros at $131M, ahead of Phenom ($131M) and aPriori Technologies ($123M).

The names that recur most often on these portfolio cap tables are Sigma Prime Ventures (3 companies), Vinay Kumar (1 company), John Avirett (1 company), Avenir (1 company), Grotech Ventures (1 company), Kickstart Fund (1 company). By latest disclosed round, the market skews Other Equity (1), Series D (1), Series A (1).

• Companies tracked: 3
• Disclosed funding total: $385M across 3 companies
• Median disclosed raise: $131M
• Largest raise: Ceros — $131M
• Stage mix: Other Equity 1 · Series D 1 · Series A 1
• Most recent dated round: 2025-08-01

Best funded Sigma Prime Ventures companies

1. Ceros — $131M (latest: Other Equity)
2. Phenom — $131M (latest: Series D)
3. aPriori Technologies — $123M (latest: Series A)

Sigma Prime Ventures — related firms and companies (46)

• Ceros
• Phenom
• aPriori Technologies
• Sigma Prime Ventures co-investors 2026
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