A Silicon Valley Phoenix: Ian Crosby’s Return to the Arena
In the high-stakes world of venture capital, failure is often viewed not as a permanent scar, but as an expensive education. Ian Crosby, whose previous startup Bench Accounting collapsed in 2024 before being acquired for scraps, is making a bold return to automate one of the most tedious aspects of business operations: bookkeeping.
His new venture, Synthetic, aims to build a fully autonomous AI bookkeeper capable of generating complex accrual-based financials without human intervention. Although the product is still in its design phase—and Crosby openly admits the vision may outpace current technological capabilities—the startup has secured a $10 million seed round to bring this vision to life.
Synthetic Seed Round Highlights
- Funding Amount: $10,000,000 (Seed)
- Lead Investor: Khosla Ventures
- Key Participants: Basis Set Ventures, Tobias Lütke (CEO of Shopify)
- Target Audience: AI and software startups
The Venture Contrarian: Running Toward Controversy
Most institutional investors would steer clear of a founder coming off a high-profile company collapse, especially when pitching a product that relies on future, unproven breakthroughs in LLMs. Yet, Jon Chu, partner at Khosla Ventures, takes the opposite approach.
“I tend to run towards controversy a little bit. In controversy, groupthink often shapes the narrative rather than the truth of the story itself,” Chu noted.
Chu points to Parker Conrad’s 2016 ousting from Zenefits as a prime historical example. While the tech industry initially dismissed Conrad, he went on to build Rippling, which is now valued at nearly $17 billion. Chu believes Crosby has undergone similar professional growth through his subsequent roles at Shopify and Teal.
The Journey of Ian Crosby
- 2012–2021: Led Bench Accounting through rapid scaling and capital raises.
- 2021: Rejected a $250M acquisition offer from Brex; subsequently ousted by the board.
- 2022–2023: Joined Shopify; founded Teal (later acquired by Mercury).
- 2024: Bench officially liquidates; Crosby launches Synthetic with $10M in backing.
The Fall of Bench: The Founder’s Perspective
Crosby maintains he was not the architect of Bench’s ultimate insolvency. According to him, the board terminated him in 2021, just three months after he turned down a $250 million acquisition bid from Brex. The board disagreed with his strategic direction as the company burned through cash, and his executive team reportedly grew frustrated with his direct leadership style.
After Crosby’s departure, Bench’s new management was unable to stabilize the business, leading to its eventual shutdown in 2024. However, Crosby’s subsequent ventures and strong references from post-Bench colleagues convinced Khosla Ventures that the entrepreneur had learned the right lessons from his past mistakes.
The Paradigm Shift in Fintech
Traditional digital accounting platforms like Xero rely on a human-in-the-loop model, where software categorizes transactions but human accountants verify the ledger. Synthetic is bypassing this hybrid approach entirely, aiming for 100% machine autonomy.
‘Autonomous or Bust’: The Technical Hurdles
The primary roadblock for Synthetic is that financial accounting requires absolute precision; AI hallucinations can lead to catastrophic tax and regulatory errors. Crosby acknowledges that current foundational models are not yet fully reliable for complex bookkeeping, using a driving analogy to describe the challenge:
“It’s like a self-driving car that can drive down one street versus the self-driving car that can drive down any street. We haven’t driven down enough streets to know if it’s going to crash.” — Ian Crosby, CEO of Synthetic.
With a fresh $10 million in runway, Crosby is prepared to play the long game, waiting for underlying AI models to mature. The startup’s thesis remains uncompromising: they will either deliver a fully autonomous product or nothing at all.
