David Tsao is an Individual/Angel tracked by The Signal.
| Date | Company | Round | Amount |
|---|---|---|---|
| 2021-06-23 | Symmetry Systems | Series A | $15M |
| Date | Company | Acquirer |
|---|---|---|
| 2026-05-18 | Symmetry Systems | Zscaler |
Data from The Signal by Return on Security — cybersecurity funding and investor intelligence.