Sublime Security is an email security and incident response platform, headquartered in Washington, United States, founded in 2019.
| Date | Round | Amount | Investors |
|---|---|---|---|
| 2025-10-28 | Series C | $150M | Georgian, 01 Advisors, Avenir, Citi Ventures, Index Ventures, IVP, Jonathan Oberheide, Nicole Perlroth, Silver Buckshot Ventures, Slow Ventures |
| 2024-12-09 | Series B | $60M | IVP, Citi Ventures, Index Ventures, Decibel Partners |
| 2024-04-22 | Series A | $20M | Index Ventures, Decibel Partners, Dmitri Alperovitch, Slow Ventures |
| 2023-02-20 | Seed | $9.8M | Decibel Partners |
Data from The Signal by Return on Security — cybersecurity funding, M&A activity, and company intelligence.