Sumary

Month-end close, VAT returns and year-end preparation are the jobs Sumary was built to take off an accounting firm's desk. Its software works across a firm's whole client list on whichever ledger each client already keeps, and each piece of work reaches an accountant prepared and waiting for review and sign-off. Sumary ApS names Deloitte, Grant Thornton and Baker Tilly among the firms using it, with work under way in the Nordics and the UK and the Benelux named as its next market.

Answers traced back to the transaction

Alongside the workflow engine, the product reasons across a client's profit and loss, balance sheet and cash flow. An accountant can put a question about a client's business and receive an answer tied to the underlying transactions. Sumary's site groups the product into workflows and agents, anomaly detection, reporting and consolidation, and accounting reasoning, and it sells to finance teams as well as to firms.

Testing models against accounting tasks

Machine learning researchers at the company, some of them with doctorates, run each leading model against Sumary's own benchmark of accounting work. They then build what surrounds the model: the harness, the context it is given, the guardrails and a check on each output. New customers are supported by what the company calls forward deployed accountants, who work beside a firm from its first day on the system.

Key facts

Offices: Copenhagen, Denmark (product, engineering and AI research); London, United Kingdom (customers) Chief executive and co-founder: Pascar Sivam Funding stated by the company: $25 million seed led by Singular (announced 9 November 2026), after a $4.2 million pre-seed Other investors named: byFounders, Partech, Tenity