Summit Partners Portfolio 2026

Summit Partners accounts for 40 tracked companies with verified cap-table data, 40 of which disclose round sizes totalling $10B. The median disclosed raise is $116M, and the largest is Klaviyo at $1.5B, ahead of DMG Practice Management Solutions ($1.4B) and NinjaOne ($732M).

The names that recur most often on these portfolio cap tables are Summit Partners (40 companies), Andreessen Horowitz (3 companies), Khosla Ventures (3 companies), Bessemer Venture Partners (3 companies), Accel (2 companies), ICONIQ Growth (2 companies). By latest disclosed round, the market skews Growth (16), Series C (7), Series B (5), Series A (4).

• Companies tracked: 40
• Disclosed funding total: $10B across 40 companies
• Median disclosed raise: $116M
• Largest raise: Klaviyo — $1.5B
• Stage mix: Growth 16 · Series C 7 · Series B 5 · Series A 4
• Most recent dated round: 2025-04-22

Best funded Summit Partners companies

1. Klaviyo — $1.5B (latest: IPO)
2. DMG Practice Management Solutions — $1.4B (latest: Growth)
3. NinjaOne — $732M (latest: Series C)
4. Zenefits — $584M (latest: Series C)
5. RELEX Solutions — $535M (latest: Growth)
6. Zenoss — $515M
7. Fuze — $500M (latest: Growth)
8. ShipMonk — $365M (latest: Growth)
9. Quantifind — $355M (latest: Growth)
10. Modernizing Medicine — $332M (latest: Growth)
11. ReCharge — $300M (latest: Growth)
12. Markforged — $300M (latest: Series D)
13. Included Health — $278M (latest: Growth)
14. Earned Wealth — $218M (latest: Series B)
15. Manychat — $163M (latest: Growth)

Summit Partners Alydar Gp, L.P. — related firms and companies (56)

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Summit Partners Alydar Gp, L.P. profile · All research reports