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Modern AI-assisted accounting built for venture-backed startups
Puzzle is a next-generation accounting platform built specifically for venture-backed startups, offering AI-assisted bookkeeping that combines software automation with the accuracy requirements of investors and auditors. Founded by former Brex and Square engineers, Puzzle understands startup financial infrastructure deeply — equity management, convertible notes, SAFE agreements, and venture debt are treated as first-class objects rather than workarounds. The platform uses AI to automate transaction categorization with startup-specific rule sets, dramatically reducing bookkeeping effort for engineering-heavy companies running AWS, Stripe, and SaaS vendor charges. Puzzle's chart of accounts and financial reports are pre-configured for startup metrics that investors care about — burn rate, runway, ARR, and unit economics — rather than requiring manual report building. The audit trail and collaboration features are designed to withstand due diligence scrutiny during fundraising rounds. Multi-entity support handles subsidiaries and the complex structures common in VC-backed companies. Puzzle's free tier is genuinely usable for early-stage startups with modest transaction volume, making it accessible during the cash-constrained early stages. For companies approaching a Series A or managing their first institutional investors, Puzzle's combination of software automation and startup-native design significantly reduces time-to-close for monthly books while keeping data audit-ready.