caltrops dot com is an investor tracked by The Signal, based in Location not found..
| Date | Company | Round | Amount |
|---|---|---|---|
| 2020-12-14 | Tonic.ai | Seed | Undisclosed |
| 2008-02-05 | VoIPshield Systems | Series B | $6M |
| 2005-04-19 | VoIPshield Systems | Seed | $2M |
Data from The Signal by Return on Security — cybersecurity funding and investor intelligence.