Slack Fund

Slack Fund accounts for 8 tracked companies with verified cap-table data, 8 of which disclose round sizes totalling $908M. The median disclosed raise is $70M, and the largest is Lattice at $330M, ahead of Nylas ($175M) and Pitch ($135M).

The names that recur most often on these co-invested cap tables are Slack Fund (8 companies), Thrive Capital (2 companies), Tiger Global (2 companies), Atomico (2 companies), Khosla Ventures (1 company), Marc Benioff (1 company). By latest disclosed round, the market skews Series B (5), Series C (2), Series A (1).

• Companies tracked: 8
• Disclosed funding total: $908M across 8 companies
• Median disclosed raise: $70M
• Largest raise: Lattice — $330M
• Stage mix: Series B 5 · Series C 2 · Series A 1
• Most recent dated round: 2023-05-01

Best funded Slack Fund companies

1. Lattice — $330M (latest: Series B)
2. Nylas — $175M (latest: Series C)
3. Pitch — $135M (latest: Series B)
4. Daily.co — $70M (latest: Series A)
5. WorkRamp — $67M (latest: Series C)
6. Onna — $54M (latest: Series B)
7. Commsor — $50M (latest: Series B)
8. Astound — $27M (latest: Series B)

Slack Fund — related firms and companies (51)

• Lattice
• Nylas
• Pitch
• Daily.co
• WorkRamp
• Onna
• Commsor
• Astound
• Slack Fund portfolio companies 2026
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