Bluebook is an AI-native software company building tooling for the accounting profession, with an explicit ambition to make accounting "self-driving." Founded in 2024 in Stockholm and backed by Y Combinator and EQT Ventures, Bluebook targets accounting firms rather than end-businesses, focusing on the knowledge-intensive work that consumes accountants' time: researching the correct treatment of transactions, documenting decisions and ensuring bookings are tax-optimal and compliant.
The heart of the product is an AI assistant trained on accounting principles, tax rules and firm knowledge. When an accountant faces an ambiguous transaction or needs to confirm the right treatment, Bluebook provides real-time research and curated documentation, drawing on a central repository that consolidates globally applicable accounting standards. Crucially, it does not just answer questions; it proactively offers tax-optimal booking suggestions and surfaces insights that help accountants make better, faster decisions, all through a clean interface designed to fit how practitioners actually work.
Accounting firms operate under chronic talent shortages and rising compliance complexity, especially across the Nordics and Europe where Bluebook is concentrating its early expansion. By automating research and documentation, Bluebook aims to let firms handle more clients per accountant, reduce errors and free senior staff from routine lookups. The product positions itself as a copilot embedded in the daily workflow rather than a wholesale replacement for the accountant's judgment.
Bluebook raised roughly $3 million (about €2.4 million in its pre-seed plus additional capital) in early 2025, in a round led by EQT Ventures with backing from Y Combinator and notable angels including Affirm's founding COO Huey Lin, an OpenAI leader and an ElevenLabs executive. The founding team, Filip Stal and brothers Jonathan and Philip Andersson, is building in a deeply under-served vertical where AI's document-reasoning strengths align tightly with the daily reality of professional accounting work.