AI-powered accounting, built like a product company.
Cranston is a full-stack AI accounting firm. We replace traditional accounting labor with autonomous AI systems, supervised by licensed CPAs. Most tools in this space either sell software to accountants or layer chatbots on top of spreadsheets. We built the accounting firm itself — end to end — so we can automate the work directly and guarantee accuracy.
Accounting today is still powered by routine manual work that AI can learn once and do forever.
We built Cranston to change that.
What Cranston does
Cranston is the full-stack AI accounting firm for startups and mid-market companies. We combine licensed CPAs with autonomous AI workflows that learn your books once and scale infinitely.
Here’s what that means:
AI-powered bookkeeping and tax – we handle accounting, reconciliation, and filings end-to-end
Workflow automation – AI builds and runs the workflows that keep your books, taxes, and finance ops in sync.
Human-in-the-loop review – CPAs review the process and the outcomes
No need to rip and replace an ERP – Connect to QuickBooks, NetSuite, your internal systems (even desktop software!), and many more
Fast setup – connect data, review once, and go live in a day
About The Team
Max and I approach accounting from opposite sides.
Max ran an accounting practice that handled everything from bookkeeping to tax and advisory. Sean built an ERP for the scrap recycling industry backed by Founders Fund and Index, now used by hundreds of companies.
We kept running into the same issue: great businesses were buried in manual accounting work that could be automated with AI. Cranston started as a conversation about fixing that.
We’re YC founders, engineers, and operators who believe the next Intuit-scale company won’t sell software to accountants — it’ll be the accounting firm itself.
Why it’s different
Most “AI accounting” products either bolt a chatbot on top of your books or handle one corner of your finance stack instead of the full picture. Cranston is the only firm where AI does the work and CPAs make sure it’s right.
Our goal is simple: to build the first accounting firm that scales with AI instead of competing with it.
We’d love to hear your thoughts — especially if you’ve ever had to wait weeks for your accountant to get back to you.
Hey Product Hunt!
Sean here from Cranston (YC F25).
Accounting today is still powered by routine manual work that AI can learn once and do forever.
We built Cranston to change that.
What Cranston does
Cranston is the full-stack AI accounting firm for startups and mid-market companies. We combine licensed CPAs with autonomous AI workflows that learn your books once and scale infinitely.
Here’s what that means:
AI-powered bookkeeping and tax – we handle accounting, reconciliation, and filings end-to-end
Workflow automation – AI builds and runs the workflows that keep your books, taxes, and finance ops in sync.
Human-in-the-loop review – CPAs review the process and the outcomes
No need to rip and replace an ERP – Connect to QuickBooks, NetSuite, your internal systems (even desktop software!), and many more
Fast setup – connect data, review once, and go live in a day
About The Team
Max and I approach accounting from opposite sides.
Max ran an accounting practice that handled everything from bookkeeping to tax and advisory. Sean built an ERP for the scrap recycling industry backed by Founders Fund and Index, now used by hundreds of companies.
We kept running into the same issue: great businesses were buried in manual accounting work that could be automated with AI. Cranston started as a conversation about fixing that.
We’re YC founders, engineers, and operators who believe the next Intuit-scale company won’t sell software to accountants — it’ll be the accounting firm itself.
Why it’s different
Most “AI accounting” products either bolt a chatbot on top of your books or handle one corner of your finance stack instead of the full picture. Cranston is the only firm where AI does the work and CPAs make sure it’s right.
Our goal is simple: to build the first accounting firm that scales with AI instead of competing with it.
We’d love to hear your thoughts — especially if you’ve ever had to wait weeks for your accountant to get back to you.
💼 Try it: https://cranstonai.com
📈 Book a demo: https://calendly.com/d/cs7y-8kw-...
🤝 YC founders: DM us!
- Sean & Max