Series A
Bay raises $37M Series A
$37M
Bay raised $37M in a Series A round1, announced Nov 10, 20261, led by Battery Ventures1.
Also participating: Micron Ventures, M12, Assaf Rappaport, Microsoft’s venture capital arm M12, Wiz CEO Assaf Rappaport, Jeetu Patel, Manoj Apte, Microsoft’s M12 venture fund, M12 (Microsoft’s Venture Fund), others and Microsoft's Venture Fund1,2,3,4,5,6.
Lead investor
- Battery Ventures
Also participating
- Micron Ventures
- M12
- Assaf Rappaport
- Microsoft’s venture capital arm M12
- Wiz CEO Assaf Rappaport
- Jeetu Patel
- Manoj Apte
- Microsoft’s M12 venture fund
- M12 (Microsoft’s Venture Fund)
- others
- Microsoft's Venture Fund
Bay funding path
Bay funding history
| Round | Announced | Amount | Lead investors |
|---|---|---|---|
| Undisclosed | Nov 10, 2026 | $50M | Battery Ventures |
| Series A | Nov 10, 2026 | $37M | Battery Ventures |
| Seed | Nov 10, 2026 | $13M | YL Ventures, Striker, Striker Venture Partners |
| Total raised | $100M |
Sources
- 1CTech by Calcalist, Nov 10, 2026. “Former Unit 8200 officers raise $50 million in just nine months for AI security startup”
- 2ascendants.in, Nov 11, 2026. “Bay Raises $50 Million to Stop AI Agents From Making Dangerous Decisions Inside Companies”
- 3Ynetnews, Nov 11, 2026. “Female-led Israeli cyber startup Bay raises $50 million in just nine months”
- 4Unite.AI, Nov 10, 2026. “Bay Raises $37M Series A to Scale Enterprise AI Agent Security”
- 5FinSMEs, Nov 10, 2026. “Bay Raises $50M in Total Funding”
- 6Globes - Israel Business News, Nov 10, 2026. “Israeli AI security co Bay raises $50m”
- 7NewsBytes, Nov 10, 2026. “Bay raises 50L/cr to help companies run secure AI agents”
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How much did Bay raise in its Series A?
Bay raised $37M in its Series A, announced Nov 10, 2026.
Who led Bay’s Series A?
The round was led by Battery Ventures.
Which investors took part in Bay’s Series A?
Participants: Battery Ventures, Micron Ventures, M12, Assaf Rappaport, Microsoft’s venture capital arm M12, Wiz CEO Assaf Rappaport, Jeetu Patel, Manoj Apte, Microsoft’s M12 venture fund, M12 (Microsoft’s Venture Fund), others and Microsoft's Venture Fund.
How much has Bay raised in total?
Bay has raised $100M across 3 recorded rounds.