Directory
AI accounting startups backed by Y Combinator
Y Combinator has funded more accounting-tech rounds than any other investor. This is the list of AI accounting startups it backed from 2023 to 2026, sorted by who each one sells to.
Updated October 24, 2026. List compiled by Cone from the YC company directory and each company's own website (sources below).
AI-run accounting firms (3)
They do bookkeeping and tax for businesses, with AI doing the work and an accountant signing off.
- BearYC S26 · bear.inc
- BalanceYC W26 · getbalance.ai
- Mars Accountingmarsaccounting.co
Software tools for accounting firms
Products that accountants and tax preparers buy to work faster.
- Luca IQYC S26 · lucaiq.com
- RationalYC S26 · rational.to
- Cranston AIcranston.ai
- Magneticmagnetictax.com
- Combinelycombinely.ai
- Moby AnalyticsYC X25 · mobyanalytics.com
- CifratoYC W25 · cifrato.ai
- TergleYC W25 · tergle.com
- TaxGPTtaxgpt.com
Software tools for finance teams (14)
Products that in-house finance teams buy, such as month-end close automation.
- DefiniteYC F26
- SintropixYC F26
- BillowYC S26
- Rex
- FullSeam
- FinlensMonth-end close automation
- OxusYC W26
- AlderYC F25
- Clerked
- Zalos
- Denki
- ProcindexYC S25
- Finto
- MeshYC W25
Where TaxBooks fits
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- See the side-by-side comparison with QuickBooks, Balance and Mars Accounting
- Not sure what to ask? Read how to choose an AI bookkeeper and tax service
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Sources. Company names, categories and Y Combinator batches come from Cone's post "Y Combinator ... has funded 25 accounting startups since 2025" (LinkedIn, October 21, 2026), which used the YC company directory and each company's website. Cone is itself backed by YC. A batch or website is shown only when that post gave it.
MoneyChoice is not affiliated with any company listed. Names are trademarks of their owners, shown here for identification only, and listing is not an endorsement. Companies change quickly, so check each company's own site. To correct an entry, use our contact form. TaxBooks provides educational information, not tax or legal advice.