Startup
Zamp
Managed sales tax compliance sold direct and through accounting firms: nexus tracking, registration, calculation and filing across 12,000-plus US jurisdictions, with an operating system for firms that white-label it.
| Founded | 2022, New York |
|---|---|
| Founders | Rohit Bhadange (CEO, formerly Insight Partners), Edward Lando, Clete Werts |
| Stage | Series A |
| Total funding | $44m |
| Last round | $30m, April 2026, led by Acrew Capital with Thomson Reuters Ventures |
| Earlier rounds | Series A $14m, 2023 |
| What it does | Sales tax calculation and filing for online sellers and SaaS companies, plus a firm-facing platform so accountants can run managed sales tax for clients |
| Traction | More than 120 accounting firms deliver sales tax through Zamp as referral or white-label partners |
| Pricing | Not published; flat managed-service fees |
| Markets | US |
| Peers | Anrok, Numeral, Kintsugi, Avalara, TaxJar |
Why it matters
Zamp raised $30 million in April 2026 with Thomson Reuters as an investor and has made accounting firms its channel, with 120 firms reselling it. Among the sales tax startups it is the one built for practitioners rather than for the software company’s own finance team.
Updated September 2026.
Part of Accountio’s accounting technology coverage.
