Latest round

Series A

Last raised

May 2026

Total raised

$31M

Investors

8

About Zamp

, operates as a B2B sales-tax compliance platform developer. The company provides automated tax calculation, end-to-end sales-tax filings, and managed compliance services for businesses and accounting firms. Based in New York, United States and founded in 2022, Zamp, Inc. provides software and managed services for sales-tax compliance in the fintech and tax-technology space. The company was initially launched as a fully managed service and later evolved into a vertically integrated sales-tax operating system combining AI agents with in-house tax professionals. Zamp supports compliance across thousands of tax jurisdictions globally. The company works with businesses and accounting firms to deliver fully managed sales-tax compliance solutions. Zamp’s platform, branded as the Operating System of Sales Tax (Zamp OS), combines AI-driven automation with tax and legal expertise to manage registrations, taxability mapping, filings, notices, and data normalization. Its offerings include rooftop-level tax calculations, nexus monitoring, API integrations, and white-label services for accounting firms. Zamp’s solutions are built by teams of software engineers, AI specialists, and tax professionals and serve e-commerce, SaaS, fintech, and accounting firms operating across multiple jurisdictions. The company’s revenue is generated by providing sales-tax software and managed compliance services to businesses and accounting firms. Zamp engages in B2B transactions through subscription-based access to its platform, bundled with tax filings, registrations, and notice management. Additional revenue is derived from advanced integrations, API usage, and white-label partnerships that allow accounting firms to offer fully managed sales-tax services to their clients. The company plans to use the April 2026 to scale its accounting-firm partnerships, develop new AI-powered product capabilities, and expand internationally.

Who invested in Zamp

8 investors across 3 rounds

See all investors in Zamp

Sign up free to see every VC on the cap table, the rounds they joined, and how much each round raised.

Funding rounds

  1. Series A

    May 26, 2026

    Amount

    $17M

    Investors

    Locked

  2. Series A

    Sep 5, 2024

    Amount

    $10M

    Investors

    Locked

  3. Seed

    May 10, 2023

    Amount

    $4M

    Investors

    Locked

Questions about Zamp

Who invested in Zamp?

Zamp has 8 investors on record across 3 venture rounds. Sign up free to see every VC on the cap table and the rounds they joined.

How much funding has Zamp raised?

Zamp has raised 3 venture rounds. Sign up free to see how much each round raised and the total.

When did Zamp last raise money?

Zamp's most recent round on record is a Series A, in May 2026.

What does Zamp do?

, operates as a B2B sales-tax compliance platform developer.

Where is Zamp headquartered?

Zamp is headquartered in Miami, US.

Which VCs invest in companies like Zamp?

Among active investors with capital left to deploy, Andreessen Horowitz, Founders Fund, Accel and Thrive Capital back software companies at Zamp's stage. Their profiles are linked below.

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