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Synthetic

Category: AI in Fintech

Fully autonomous AI bookkeeping service for software startups, employing no human bookkeepers or accountants. Synthetic was founded in 2025. The company is led by Ian Crosby. Based in San Francisco, California. Team size: 1-10. Total funding raised: $10M. Latest round: Seed. Key investors include Khosla Ventures; Basis Set Ventures; Tobi Lütke (CEO, Shopify); Kaz Nejatian (CEO, Opendoor); Zach Abrams (Co-founder, Bridge); Cosmin Nicolaescu (CEO, Accrual); Michael Tannenbaum (CEO, Figure).

Founded
2025
Headquarters
San Francisco, California
Team size
1-10
Total funding
$10M

Value proposition

Synthetic provides an AI agent that handles a startup's full bookkeeping autonomously — connecting to bank accounts, payroll, billing systems, and inboxes, then producing accrual-basis financials without any human bookkeeper involvement.

Products and solutions

Autonomous AI bookkeeping agent: connects to banks, payroll, billing systems, and email; asks clarifying questions when context is missing; produces accrual-basis books ready for tax preparers; pricing starts at $49/month (~1/4 cost of human-staffed services)

Unique value

Fully autonomous AI bookkeeper — no human accountants on staff. Priced at $49/month (~1/4 of traditional services). Narrow focus on software startups enables AI reliability through repetition. "Waymo-level" autonomy vs. "drive assist" tools that still require human oversight.

Target customer

Software, SaaS, and AI startups (initially the smallest customers with simplest accounting needs)

Industries served

Software / SaaS / AI startups

Technology advantage

Built by Ian Crosby, who previously built Bench into the largest bookkeeping service for SMBs. Deep domain expertise in accounting workflows, edge cases, and customer pain points. Narrow vertical focus (software startups only) allows AI to achieve reliability through repetition before expanding. Patient capital approach — raised years of runway to wait for foundational model improvements.

How they differentiate

Synthetic is the only service aiming for full autonomy — no human bookkeepers on staff. Competitors like Pilot, Digits, and Bench all relied on human-in-the-loop models. Synthetic's bet is that AI can eventually handle 100% of bookkeeping for software startups, making it dramatically cheaper ($49/mo vs $349+/mo for Pilot) and scalable without linear human cost growth.

Main competitors

Pilot (human + AI bookkeeping for startups); Digits (AI-powered bookkeeping with human financial advisors); Xero (traditional accounting software with AI features)

Key partnerships

Khosla Ventures (lead investor); Basis Set Ventures (investor); Shopify CEO Tobi Lütke (angel investor); Opendoor CEO Kaz Nejatian (angel); Bridge co-founder Zach Abrams (angel); Accrual CEO Cosmin Nicolaescu (angel); Figure CEO Michael Tannenbaum (angel)

Major milestones

Founded 2025; Raised $10M seed from Khosla Ventures (May 2026); Product in crash-test phase with narrow user group; Vision to expand into full business operations platform ("Shopify for software companies")

Growth metrics

Product still in design/prototype phase as of May 2026; not yet publicly released; team of ~5 people; pricing set at $49/month

Market positioning

Early-stage disruptor targeting the bottom of the market (smallest software startups) with a fully autonomous AI bookkeeper. Positioned as the "Waymo of bookkeeping" — full autonomy vs. human-assisted models. Pricing at ~1/4 of competitors creates a wedge for adoption, with a long-term vision to become "the Shopify for software companies" (handling incorporation, banking, payments, accounting, etc.).

Geographic focus

San Francisco / US market initially; founder is Canadian but chose SF for its intense work culture and talent density

About Ian Crosby

Ex-CEO & Co-founder of Bench (largest SMB bookkeeping service, raised $114M+); Ex-Head of Accounting Products at Mercury; Ex-Shopify (ran banking division); Founder of Teal (acquired by Mercury); Management Consultant at Bain & Company; B.Commerce from UBC Sauder School of Business (graduated at 20)

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