Synthetic: Ian Crosby
Within six months of an exit, serial entrepreneur and investor Ian Crosby was already imagining what he could build next. The ideas, he says, kept swirling in the back of his mind that he started a spreadsheet.
It wasn’t until he found himself prototyping in his Airbnb instead of sightseeing while in Europe that he’d get closer to the answer. When a startup that he met with recommended that he try ElevenLabs—a platform that lets users build and launch AI agents that can talk, type, and take other actions across phone, web, and apps—he created his own with a British accent that started off as “hugely entertaining,” he says, until the idea hit him: an accounting system that’s fully autonomous.
An agent that does a software company’s bookkeeping from start to finish without any staff. It would connect to their bank accounts, payroll system, tools, and email so that it can gather context on their business and compare financial records across systems to verify the numbers match and flag anything that doesn’t. If it needs additional context or approval to complete a step, it’ll check in with the founder, who can respond through chat or accept or deny requests at the click of a button. At any time, the founder can access their financials and insights behind them and export records to hand off to their tax preparer for filing.
The platform would then evolve into becoming “the Shopify for software companies.” It would handle the website, incorporation, bank accounts, payments, accounting, and everything else in between. The reason: while AI now makes it faster than ever to build and ship products, there still isn’t a single place for software companies to build and run their entire business the way Shopify does for e-commerce companies.
That’s exactly what Crosby is building now with Synthetic, beginning with accounting where pricing will start at $49 per month. The company today announced [https://www.businesswire.com/news/home/20260514241304/en/Synthetic-Raises-%2410M-Seed-Led-by-Khosla-Ventures] it raised $10 million USD in seed funding led by Khosla Ventures. Participating investors include Basis Set Ventures, Shopify co-founder and CEO Tobi Lütke, Opendoor CEO and former Shopify COO Kaz Nejatian, Bridge co-founder Zach Abrams, whose company was acquired by Stripe for $1.1 billion, Accrual CEO and former Brex CTO Cosmin Nicolaescu, and Figure CEO and former Brex COO Michael Tannenbaum.
This is the story of a founder who created the largest company of its kind in the world, took what he learned from running Shopify’s banking division to start his next company that was acquired in less than a year and a half, and why he’s dedicating however many years it takes to build Synthetic, along with the moments in between that pushed him to dream bigger, from being repeatedly told his idea was doomed by a tech legend to having to step away from his first venture.