The round was led by Album Ventures, with participation from returning investor Jack Altman, co-founder and CEO of Lattice, and Y Combinator. Earlier investors include Mathilde Collin, co-founder and CEO of Front; Rahul Vohra, founder and CEO of Superhuman; and William Hockey, CEO of Column and co-founder and former CTO of Plaid. In total, Double has raised more than $12.5 million to date.

Double is the modern close management and productivity platform for accounting and bookkeeping firms. Built to streamline workflows, improve accuracy, and strengthen client relationships, Double helps firms serve more clients without sacrificing quality. Founded in 2020, the company now serves thousands of accounting professionals and continues to expand its suite of tools built to amplify, not automate, human expertise.