Cynch AI is a San Francisco–based tax technology company that applies deterministic, non-hallucinatory artificial intelligence to automate the most time-consuming and error-prone elements of tax reporting. Its platform is designed for tax and accounting firms, helping them streamline compliance tasks while preserving the accuracy and client relationships critical to their business. Led by CEO Nigel Duffy, the company operates across the United States and positions itself as an acquirer of traditional tax practices, onboarding their clients onto its AI platform. Cynch AI’s strategy centers on scaling through acquisitions and rapidly deploying its software across newly added customer bases. The firm recently secured $9 million in external capital, providing fresh resources to fuel this roll-up and technology-deployment model. Although specific revenue or user numbers were not disclosed, the new round underscores investor confidence in the company’s growth prospects.

Total raised

$9M

Funding rounds

1

Latest round

Equity

Latest activity

Dec 2025