Double
YC S21New York City, US · Founded 2020 · 80 employees · Hiring · 3 known investors
Find your way into Double
236 people in our graph share verified history with the Double team — schools, employers, funds. One of them is your warm intro.
Double is a practice management platform that automates accounting workflows including month-end close, tax preparation, and financial reporting for bookkeeping and accounting firms globally.
Also known as Double (formerly Keeper) · Keeper
Founders & leadership· Y Combinator alumni (S21)
Double was founded in 2020 by Ben Stein and Kenny Song.


Investors · 3
Funding
SEC filings, press & company announcements$6.5M disclosed across 1 of 3 rounds · 2021–2025
- $6.5MSeries ADec 2025 · 3 sourcesSource ↗
- Undisclosed amountSeedDec 2024Source ↗
- Undisclosed amountSeries AOct 2021Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Competitors · 4
by search overlapCompanies competing with Double for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does Double do?
- Double is a practice management platform that automates accounting workflows including month-end close, tax preparation, and financial reporting for bookkeeping and accounting firms globally.
- Who founded Double?
- Double was founded by Ben Stein, Kenny Song in 2020.
- Who are Double's investors?
- Double's investors include Album VC, Y Combinator, Album Ventures.
- How much funding has Double raised?
- Double has disclosed $6.5M raised across 1 of its 3 known rounds.
- Where is Double headquartered?
- Double is headquartered in New York City, US.







