Zamp Revenue & Funding (2025)

Zamp crossed $1 million in annual recurring revenue within six months of its commercial launch in 2023, after spending roughly one year building the product from the first line of code written in August 2022. Bhadange told Latka that the company reached $5 million in ARR at the start of 2025, around the first quarter, and was north of $10 million in ARR at the time of the May 2026 interview.

Zamp serves approximately 1,500 accounting and tax professionals and finance professionals on its platform as of May 2026. Bhadange described the customer count in terms of professionals on the platform rather than end brands, because a significant share of the business flows through accounting partners who onboard their own client portfolios.

The company's largest single customer is an accounting partner paying $500,000 per year. That partner requires compliance coverage across more than 1,000 state-level filings, reflecting the scale of its underlying client base. There are 47 states with sales tax obligations and four states with no sales tax, meaning the 1,000-plus figure reflects multiple filings per state across many clients.

Bhadange described a typical pricing range of $10,000 to $25,000 per year for a $10 million revenue business, with the midpoint skewing toward $15,000 to $25,000 when smaller merchants are excluded from the average. The company uses an outcome-based contract structure in which customers pay based on the liability managed, and Zamp covers penalties if a filing is incorrect.

Zamp generates revenue through outcome-based contracts rather than the input-based models historically used in the sales tax industry, where customers were charged per filing, per registration, or per integration. Under Zamp's model, customers pay based on the volume of tax liability managed, and Zamp absorbs the penalty cost if a filing is incorrect.

Approximately 50 to 65 percent of revenue comes through the accounting partner and white-label channel, where accounting firms either refer clients to Zamp or resell Zamp's platform under their own brand in a powered-by arrangement. Some partners accept a referral fee while others pass it through as a discount to their end clients. The remaining share of revenue comes from direct customers.

Zamp has remitted $400 million in total sales tax through its platform since inception across approximately three years, at a stated accuracy rate of 99.97 percent. The company tracks compliance output per subject matter expert as an internal efficiency metric. Bhadange said one person is currently doing the work of 12 compared to 15 months ago and that he expects that ratio to reach 100 to 1 by the end of 2026. The platform sits on billions of dollars in GMV across connected customer accounts, which Bhadange noted positions the company to explore adjacent financial products such as lending. Profitability was not discussed in the interview. Gross margin was not discussed in the interview. Burn rate and runway were not discussed in the interview.

Zamp employs approximately 70 full-time people as of May 2026, with 25 of them in engineering roles. Bhadange noted that headcount has remained relatively flat for the past six to twelve months while revenue has grown, reflecting the company's strategy of using AI agents to increase output per employee rather than adding headcount proportionally. The founding core team was three people in 2022.