Quanta has secured a $15 million Series A round led by Accel, with participation from Operator Collective, Naval Ravikant, Designer Fund, Basecase, and several notable operators, including Akshay Kothari of Notion, Claire Hughes Johnson of Stripe, and Huey Lin of Affirm. The company also announced the launch of Prism, a new agentic reporting layer built on top of Quanta’s real-time accounting infrastructure.
The San Francisco-based startup, founded by CEO Helen Hastings, has spent the last several years developing a fully native general ledger that ingests financial data directly from source systems, applies accounting policy, posts entries, reconciles continuously, and maintains a complete, event-sourced record of every change. The company combines automation with an in-house accounting team working in the same environment to resolve exceptions and ensure accuracy.
Prism, now available to companies using Quanta’s accounting services, is designed to give finance teams a live and explainable view of their books. Instead of relying on fragmented dashboards or static spreadsheets, users can explore real-time financial data, trace any number back to its source, and ask complex operational questions, such as margin by product line or quarter-over-quarter cloud spend. Answers are sourced directly from reconciled accounting data rather than derived from external BI layers.
Quanta positions Prism as the first reporting system capable of connecting the “what happened” with the “why,” enabled by advances in AI that allow large language models to reason over structured financial information with accountant-level precision. The company argues that real-time accounting is now essential in an era defined by volatile infrastructure costs, tighter margins, and rapid operational changes.
With the new funding, Quanta plans to expand its platform, strengthen its accounting services, and continue building toward its stated goal: making financial data as live, accurate, and dependable as any other mission-critical system inside a modern software company.
