Every small business needs a great finance department. Now it can afford one.

For decades, small businesses have had two choices for their finances: do it yourself, or hire one person at a time and hope the books keep up with the business.

Large companies have never worked that way. They have bookkeepers keeping transactions current, accountants closing the month, a controller standing behind the numbers, and a CFO using financial data to guide leadership decisions. Each role builds on the capabilities of the others.

Small businesses need the value that every one of those functions brings; they just don't need them full time. A growing company might need a few days of controller work a month and a few hours of CFO judgment, but it has only ever been able to buy people by the salary.

The AI revolution has changed that for good. Agentic AI can now carry out, with remarkable efficiency, the routine work that once consumed most of a finance team's hours. That alone has made the traditional finance department obsolete. The future of finance in small businesses belongs to specialized, fractional finance and accounting professionals working alongside AI. By putting agentic AI to work, small businesses can have it both ways: an entire professional finance team at a fraction of the cost.

That is what Fortuna is: the complete finance function, delivered fractionally, made possible by AI and overseen by professionals.