Alta Partners

Alta Partners accounts for 19 tracked companies with verified cap-table data, 19 of which disclose round sizes totalling $2.7B. The median disclosed raise is $85M, and the largest is EGenesis at $481M, ahead of BridgeHealth ($450M) and DispatchHealth ($417M).

The names that recur most often on these portfolio cap tables are Alta Partners (19 companies), Longwood Fund (4 companies), General Catalyst (3 companies), Domain Associates (3 companies), Lux Capital (2 companies), Leaps by Bayer (2 companies). By latest disclosed round, the market skews Series A (7), Series D (5), Series B (5), Series E (1).

• Companies tracked: 19
• Disclosed funding total: $2.7B across 19 companies
• Median disclosed raise: $85M
• Largest raise: EGenesis — $481M
• Stage mix: Series A 7 · Series D 5 · Series B 5 · Series E 1
• Most recent dated round: 2025-09-09

Best funded Alta Partners companies

1. EGenesis — $481M (latest: Series D)
2. BridgeHealth — $450M (latest: Series D)
3. DispatchHealth — $417M (latest: Series D)
4. Trevena — $174M
5. Variant Bio — $130M (latest: Series B)
6. Harbor Health — $130M (latest: Series D)
7. ImmuneID — $113M (latest: Series A)
8. MBrace Therapeutics — $110M (latest: Series B)
9. aTyr Pharma — $90M (latest: Series E)
10. Lassen Therapeutics — $85M (latest: Series B)
11. Qihan Biotech — $75M (latest: Series B)
12. DEM BioPharma — $70M (latest: Series A)
13. Progentos Therapeutics — $65M (latest: Series A)
14. CuraSen Therapeutics — $60M (latest: Series B)
15. Cara Therapeutics — $56M (latest: Series D)

Alta Partners — related firms and companies (56)

• EGenesis
• BridgeHealth
• DispatchHealth
• Trevena
• Variant Bio
• Harbor Health
• ImmuneID
• MBrace Therapeutics
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Alta Partners profile · All research reports