Double, a close management and practice management platform for accounting and bookkeeping firms, has raised a $6.5 million Series A round led by Album Ventures, with participation from returning investor Jack Altman, co-founder and CEO of Lattice, and Y Combinator. The company said the financing brings its total capital raised to more than $12.5 million, with earlier backers including Mathilde Collin of Front, Rahul Vohra of Superhuman, and William Hockey, CEO of Column and co-founder and former CTO of Plaid.
The New York-based company, formerly known as Keeper, is positioning its product as a unified workspace designed specifically for accountants to manage the month-end close and client collaboration. Double says it addresses a common operational challenge for firms that still rely on manual checklists, version-controlled spreadsheets, and extended email threads by centralizing client data, automating repetitive tasks, and tightening workflows without removing the human judgment required for review, reconciliation, and advisory work.
Double said its platform is used by more than 4,000 accounting and bookkeeping firms across North America to manage month-end close, client communication, and file reviews in one place. Over the past year, the company said it has helped firms close books for hundreds of thousands of businesses each month while saving dozens of hours per team per week, and it has expanded headcount across engineering and go-to-market, more than doubling the company’s size. Double also said net dollar retention continues to hit 150%, which it presented as evidence of product-market fit and customer expansion.
The company rebranded from Keeper to Double in October, framing the name as a reflection of its aim to increase accountants’ capacity, accuracy, and impact. Double said its strategy is to build AI-enabled automation on top of software that fits how accounting teams work today, arguing that while AI can take on more tasks, the profession will continue to rely on human judgment, client context, and accountability.
Double described its product roadmap around automating and streamlining core workflows in the close process. The platform is intended to support task tracking and assignment for monthly delivery, quality control, and automated checks to flag errors and reduce review time.
Client collaboration features that consolidate requests and document sharing to replace email chains and improve responsiveness. The company said the new capital will be used to accelerate product development, expand engineering and customer success teams, and grow its partner ecosystem among accounting firms and technology platforms, while continuing to invest in AI-powered features that reduce repetitive work and improve the quality of financial reporting.
KEY QUOTES:
“Accounting is the heartbeat of every business, but accountants are still held back by tools built for an earlier era,” said Ben Stein, co-founder and CEO of Double. “With Double, we’re helping firms focus on the high-value work that truly matters — judgment, insight, and client relationships – while automating the rest.”
Ben Stein, Co-Founder and CEO, Double
“Double is reshaping the future of accounting software by building with, not against, the professionals who power it. Their focus on augmenting accountants — not automating them away — has resonated deeply with firms who have long been underserved by legacy systems.”
“Double’s growth is remarkable because it solves one of the most persistent pain points in finance: manual, fragmented close processes. We believe Double will become the operating system for modern accounting firms.”
Sid Krommenhoek, Album Ventures
