Stacks

AI-powered financial close platform that automates reconciliations, journal entries, variance analysis, and reporting for accounting teams. Founded in 2024 by senior product, engineering, and finance leaders from Uber, Plaid, and Miro, and headquartered in London (originally Amsterdam), Stacks serves 30+ enterprise customers. It raised a $23M Series A led by Lightspeed in February 2026, following $10M of earlier seed funding led by EQT Ventures and General Catalyst.