Synthetic Raises $10M in Seed Funding Led by Khosla Ventures

The company plans to use the funding to improve its product prototype, grow its engineering team in San Francisco and further develop its AI quality control systems to deliver reliability that exceeds human operated services.

Synthetic is an AI-powered bookkeeping service that operates without human bookkeepers or accountants. The platform connects to a customer’s bank accounts, payroll, billing systems and email accounts, then asks follow-up questions when needed to understand the business better. It produces clean, accrual based financial records ready for tax preparation.

The service starts at $49 per month, which is much cheaper than traditional bookkeeping services. Synthetic is available 24/7 and designed to avoid common issues such as delays, backlogs, or staffing shortages. Users simply connect their accounts, answer occasional questions, and the bookkeeping is completed automatically.

Synthetic is focused specifically on software, SaaS, and AI companies. Instead of building a broad product for every business type, the company aims to create a highly specialized solution that works extremely well for a smaller group of customers.

The company is starting with smaller businesses, where accounting processes are simpler and plans to expand to larger customers as the product matures. It's team is currently testing and improving the platform with early design partners.

Ian Crosby started Synthetic with firsthand experience of the challenges involved in scaling bookkeeping services. He believed that traditional human-based bookkeeping has natural limits in cost, speed, and availability that cannot be fully solved through operational improvements alone.

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“This one’s quite simple. You have a large, valuable problem that AI will inevitably solve. A founder who’s spent multiple decades working on the problem with near-perfect founder market fit. And resilience and grit that’s been forged through multiple founding experiences and scale-ups at companies like Shopify and Mercury,” said Jon Chu of Khosla Ventures. “What more can one really ask for here?”

"I'm not sure if it's yet technologically possible to make this work," said Ian Crosby, founder and CEO of Synthetic. "AI is notoriously unreliable, and no one wants to entrust their accounting to a system that might get it wrong. Our focus is on quality control, and we're not going to release this until we're confident it's more reliable than a human bookkeeper. I'm not sure if that's going to be 6 months or 6 years. But building a truly autonomous AI that helps founders is something worth building, and I'd rather we build something novel and useful than something easy."

About Synthetic

Founded in 2025, by Ian Crosby, Synthetic is building an autonomous AI bookkeeping platform designed to replace traditional bookkeeping services for startups, and small businesses. The company uses AI to reimagine bookkeeping workflows and is led by a team of experienced startup operators focused on quickly building practical, scalable solutions.

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