Numeral raises $100M to turn AI into a full-time sales tax accountant. September 24, 2026 * Numeral raised $100 million in Series C funding led by Insight Partners. * The AI platform now handles sales tax, VAT and GST for more than 3,500 businesses. * California's new SaaS tax law is exactly the kind of shift Numeral is betting on. Ask a finance team what keeps them up at night, and sales tax rarely makes the list, until a business crosses into a new state or country and discovers it owes tax it didn't know existed. Numeral, a San Francisco startup that automates that exact headache with artificial intelligence, has raised $100 million in Series C funding, bringing its total raised to $157 million. Insight Partners led the round, joined by Salesforce Ventures, Geodesic, Benchmark, Mayfield, FCVC, Y Combinator and Uncork Capital. "Sales tax has become a much bigger operational challenge as companies grow across markets, systems and business models. Businesses need infrastructure that can keep pace as rules and requirements change across jurisdictions, without adding more manual work for their teams," said Sam Ross, co-founder and chief executive of Numeral. The timing is not a coincidence. California recently signed Senate Bill 122 into law, extending sales and use tax to prewritten software, including SaaS, from January 1, 2027, a change expected to raise close to $2 billion a year for the state. It is exactly the sort of rule change that leaves finance teams scrambling to update billing systems and filings across dozens of jurisdictions at once. How Numeral works. Ross, a former Airbnb product manager, founded Numeral in 2023 with chief technology officer Matt DuVall, an engineer who previously worked on Stripe and Notion, after running his own e-commerce brands and discovering how fast tax obligations multiply once a company sells in more than one state. The startup combines a deterministic tax engine with AI and human tax specialists, covering the full lifecycle from nexus monitoring and registrations to calculation, filing, remittance and exemption certificate management. It supports VAT and GST compliance in more than 90 countries and integrates with more than 40 billing, financial, and ERP systems. Numeral says that when businesses migrate their existing exemption certificates onto the platform, 30% to 40% fail validation on the first pass, a sign of how much manual error the industry has been quietly carrying. Competition heats up. Numeral competes with incumbents such as Avalara and Vertex, and with newer AI-native rivals including Anrok and Zamp, all of which sell similar automation to e-commerce and SaaS companies. Two adjacent bets are also emerging in the same neighbourhood. Tech Funding News previously covered Munich's Skalar, which raised €12 million to build an AI-first tax and accounting firm from scratch rather than sell software to existing advisers. Berlin's Integral took a similar path, raising €18 million to pair AI agents with licensed professionals for small and medium-sized businesses. London-based Yonda Tax is chasing a narrower slice of the same problem, closing a $15 million round in December 2025 focused specifically on cross-border VAT, GST and sales tax automation. While those companies are experimenting with owning the professional service itself, Numeral is betting that staying software, backed by deep tax expertise, is the model that scales faster. The global tax management market is projected to grow from $24.52 billion in 2025 to $33.21 billion by 2030, a 6.3% compound annual growth rate, according to MarketsandMarkets. Numeral says its total transaction volume grew 327% year over year, and it expects its tax engine to process more than 80 million transactions. Customers can cut time spent on filings and registrations by up to 80%, the company says, and its exemption certificate product can save up to 400 hours a year. Insight Partners has previously backed Shopify, Twitter and DocuSign, giving Numeral a well-resourced partner as it chases larger enterprise customers. "Sales tax is mission-critical to get right, and the complexity is only growing as regulations expand into new products and markets," said Rebecca Liu-Doyle, managing director at Insight Partners. Arvind Ayyala, partner at Geodesic Capital, added: "Tax compliance has traditionally forced businesses to choose between expensive manual work and software that still leaves them carrying the operational burden. Numeral is changing that model by combining deep tax expertise with AI-native infrastructure to deliver tax compliance as an outcome." Numeral plans to use the new capital to expand into software, manufacturing, distribution and wholesale, and to grow its engineering, sales, marketing and product teams. It is also expanding its accounting partner programme, allowing firms to refer clients, resell Numeral, or advise customers during implementation. Sales tax compliance is one of the least glamorous problems in fintech, which may be exactly why it has pulled in so much capital this year. As more states and countries redraw what counts as taxable, the real test for Numeral and its rivals will not be how many new industries they add, but whether AI-run tax engines can keep pace with regulators who are just as capable of rewriting the rules as software is of automating them.

Numeral, an AI-powered sales tax compliance platform, has raised $100 million in Series C funding led by Insight Partners. Salesforce Ventures, Geodesic, Benchmark, Mayfield, FCVC, Y Combinator, and Uncork also participated. The San Francisco-based company will use the funds to accelerate product development, expand its offering across software, manufacturing, distribution, and wholesale industries, and grow its team. Numeral recorded 327% year-over-year growth in transaction volume and expects to process over 80 million transactions through its tax engine. Founded in 2023 by Sam Ross and Matt DuVall, Numeral provides sales tax compliance services including nexus monitoring, registrations, tax calculation, and filings. The platform supports VAT and GST compliance in over 90 countries and integrates with more than 40 billing and financial systems. Numeral previously raised a $35 million Series B in September 2025, bringing total funding to $157 million.

Snorkel AI raises $350M to scale the Data factory for frontier AI. Sep 22, 2026, 18:15 ET SAN FRANCISCO, Sept. 22, 2026 /PRNewswire/ - Snorkel AI, the frontier AI data lab, today announced it raised $350 million at a valuation of $3.5B in a round co-led by Insight Partners and S32, with significant participation from existing investor Addition. The round included new investors March Capital, Blumberg Capital, Allegis Capital, Frontline, Standard, and Third Point Ventures, along with existing investors Greylock, Lightspeed, GV, Factory, Prosperity7, Walden Catalyst, and Wells Fargo. The investment will expand Snorkel's agentic data factory, which supplies the data and environments behind the world's most advanced AI lab systems. The raise comes amid a fundamental phase shift in AI data. Building AI in the Data 1.0 era meant simple labeling tasks, a volume problem solved with headcount. Today's frontier and agentic systems demand Data 2.0: expert agentic tasks, environments, and rubrics that take even the most qualified humans hours or days to construct. Designing them well is research work, where quality and complexity determine value. Meeting that bar requires a wholly new paradigm for data development, which is partly why Snorkel has grown rapidly since launching its expert Data-as-a-Service offering in September 2025. The company works with leading AI labs and enterprises on the data behind frontier model evaluation and training. The work is a natural outgrowth of Snorkel's roots: the company grew out of the Stanford AI Lab nearly a decade ago with a founding team that pioneered the field of data-centric AI and continues to contribute science on data at the jagged frontier of AI development. That body of work spans 250+ peer-reviewed papers cited more than 25,000 times. "The teams pushing the frontier want a research data partner who pioneers the science of data development," said Alex Ratner, co-founder and CEO of Snorkel AI. "That's what Snorkel was built to be: the frontier lab for agentic data, combining human excellence with over a decade of research and technology." "Snorkel's research-grade approach to AI data, environments, and measurement is becoming an increasingly important ingredient in building capable and reliable AI systems - and their demonstrated growth at scale reflects that," said Lonne Jaffe, Managing Director at Insight Partners. "We're excited to back Alex and the team as they continue to bring their frontier AI data factory capabilities to longer-running, complex work in high value industries like healthcare, law, and software engineering." "Snorkel's expert-agentic environments create a unique flywheel between human expertise and AI, delivering data at the speed and quality that enables a new era of efficiency and accuracy for model development," said Andy Harrison, CEO and General Partner of S32. "Working with Snorkel ensures the highest frontier model success rate and creates a true partnership between model developer and data provider." Snorkel plans to use the funding to grow the capacity of its agentic data factory to meet demand, accelerate investment in vertical and enterprise AI, and extend its core research and technology into new domains and modalities. The company will also deepen its investment in open research, building on programs like its Open Benchmarks Grants initiative. About Snorkel AI Snorkel AI is the frontier AI data lab, helping teams build the data and environments behind high-performing frontier and agentic AI. We combine technology with research-driven AI data development to create datasets, benchmarks, evals, and custom solutions for real-world AI systems. Founded out of the Stanford AI Lab in 2019, Snorkel works with leading AI labs and enterprises to move from better data to better outcomes. About Insight Partners Insight Partners is a global software investor partnering with high-growth technology, software, and Internet startup and ScaleUp companies that are driving transformative change in their industries. As of December 31, 2025, the firm has over $90B in regulatory assets under management. Insight Partners has invested in more than 900 companies worldwide and has seen over 55 portfolio companies achieve an IPO. Headquartered in New York City, Insight has a global presence with leadership in London, Tel Aviv, and the Bay Area. Insight's mission is to find, fund, and work successfully with visionary executives, providing them with tailored, hands-on software expertise along their growth journey, from their first investment to IPO. For more information on Insight and all its investments, visit insightpartners.com or follow us on X @insightpartners. SOURCE Snorkel AI