Numeral has successfully raised $100 million in a Series C funding round. These funds will be used to scale its artificial intelligence-based sales tax compliance platform.
Insight Partners led this round, with participation from Salesforce Ventures, Geodesic, Benchmark, and Mayfield. Additional investors included FCVC, Y Combinator, and Uncork. This latest round brings Numeral's total funding to $157 million.
The San Francisco-based company plans to use the new capital to accelerate product development. Furthermore, it intends to expand its offerings across software, manufacturing, distribution, and wholesale sectors. Numeral also plans to grow its teams in engineering, sales, marketing, and product development.
Founded in 2023, Numeral was established by CEO Sam Ross and CTO Matt Duval. The company previously raised $35 million in a Series B round in September 2025.
The Numeral platform integrates a deterministic tax mechanism with automation and AI, managing various stages of tax compliance. These stages include nexus monitoring, registration, tax calculations, filing, and payment remittance.
Through the platform, businesses can manage exemption certificates and virtual mailbox services. Numeral supports VAT and GST compliance in over 90 countries and integrates with more than 40 payment and financial systems.
Reports indicate that clients can reduce registration and filing workload by up to 80%. The company also reports a 95% reduction in manual spreadsheet work and filing errors. Exemption certificate management tools can save businesses up to 400 hours annually.
The company notes that 30%–40% of submitted certificates may fail verification, which helps identify previously unnoticed compliance issues. The system provides growing companies with a centralized workflow for monitoring obligations, preparing declarations, and maintaining documentation across different jurisdictions as they expand.
The fundraising followed strong growth in Numeral's transaction processing activity. The company reported a 327% year-over-year increase in total transaction volume. Numeral expects its tax mechanism to process over 80 million transactions.
The company's client base is also expanding across various industries. Software, manufacturing, and distribution are adopting the platform fastest, as these sectors often face complex tax requirements in multiple jurisdictions.
Regulatory changes can also create additional compliance requirements for growing businesses. For example, California recently introduced changes affecting taxes on certain electronically distributed software. These changes are expected to impact software companies starting in 2027.
Numeral is also strengthening its partnerships with accounting firms. Therefore, companies need systems that allow them to track changing obligations in various markets. Numeral recently launched a program for accounting partners, enabling partners to recommend clients or resell the Numeral platform. They can also utilize the technology when providing their own services.
This approach keeps tax consultants involved in important client decisions. Numeral also provides access to internal specialists to resolve complex tax issues. The company asserts that this combines automated infrastructure with human tax expertise.
Numeral plans to extend this model as it enters additional industries. The latest funding will support broader product development and market entry, as well as provide resources to increase the company's international presence.
Numeral positions its platform for enterprises managing increasingly complex tax liabilities, anticipating growing demand for automated compliance across various markets, thereby reducing the burden on internal finance teams.