Fieldguide builds an AI-native platform for audit and advisory firms: engagement management, document handling, request tracking and workpapers on one system, with a family of Field Agents that plan audits, test controls, draft procedures and review evidence while the practitioner stays in the loop. Field Auditor and Field Orchestrator are live, Field Planner and Field Reviewer are due later in 2026, Field Financials (three agents that draft, validate and roll forward financial statements) started shipping in August 2026, and Fieldguide MCP exposes live engagement data inside Claude, Copilot and Gemini. The platform covers financial audit, SOC, employee benefit plan and IT audit, ESG, risk advisory, cybersecurity and privacy, corporate internal audit and, with FedRAMP work underway, federal customers.
Founded in 2020 and part of Y Combinator's S20 batch, Fieldguide is used by more than half of the top 100 US CPA firms, including several Big Four members, with KPMG, BDO, RSM US, Baker Tilly, Grant Thornton, Cherry Bekaert, Aprio, Wipfli, Mazars and CBIZ among named customers. The company says its agents save practitioners up to 75% of time on manual tasks, and Goldman Sachs reported clients seeing 30% to 40% efficiency gains when it invested. Headcount was 160 in February 2026 with a plan to double within a year; about a quarter of employees are former audit practitioners.