Sixth Street

Portfolio Co Investors 2026 for Sixth Street: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.

Sixth Street accounts for 16 tracked companies with verified cap-table data, 16 of which disclose round sizes totalling $9.8B. The median disclosed raise is $600M, and the largest is Contentsquare at $1.4B, ahead of Caris Life Sciences ($1.3B) and Kpler ($1B).

The names that recur most often on these co-invested cap tables are Sixth Street (16 companies), Insight Partners (3 companies), Menlo Ventures (2 companies), Five Arrows (1 company), HealthCare Royalty (1 company), Gyrus Capital (1 company). By latest disclosed round, the market skews Growth (7), Series D (3), IPO (2), Series F (1).

Best funded Sixth Street companies

  1. Contentsquare — $1.4B (latest: Series F)
  2. Caris Life Sciences — $1.3B (latest: IPO)
  3. Kpler — $1B (latest: Growth)
  4. Biohaven — $1B (latest: IPO)
  5. BridgeBio Pharma — $1B (latest: Growth)
  6. Essential Pharma Group — $966M (latest: Growth)
  7. Accellion — $601M (latest: Growth)
  8. Pinnacle Gas Services — $600M (latest: Growth)
  9. Sprinklr — $578M (latest: Series G)
  10. Mammoth Biosciences — $465M (latest: Series D)
  11. Heap — $205M (latest: Series D)
  12. Amplience — $180M (latest: Series D)
  13. Seeq — $159M (latest: Series A)
  14. Chronograph — $143M (latest: Growth)
  15. Bourque Logistics — $100M (latest: Growth)

Sixth Street ABF Beacon GenPar I, L.P. — related firms and companies (56)

Sixth Street ABF Beacon GenPar I, L.P. profile · All research reports