AI Start-Up Flex Secured $60 million aiming to offer Finance Tools

Published: 05 Dec 2025

Author: Precedence Research

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A leading AI start-up, Flex, has raised a whopping $60 million backed by a portage ventures-led funding round, aiming to provide one-stop solutions with shops especially for mid-sized business owners. The Series B round estimated the firm at nearly $500 million, according to the sources.

Flex, a Miami-based start-up firm positioning itself as a private bank with high-net worth business owners, announced this new investment. The funding occurs after a year in which Flex quadrupled revenue and increased its annualized payments volume from $1 billion to $3 billion, as per the announcement by the company itself.

For many early customers, the major shift was the idea that somebody has finally acknowledged the space they have occupied. Conventional FinTech tends to follow micro-business or large-scale enterprises.

However, Flex concentrated on the band in the middle by prioritizing profitable businesses with $3 million to $100 million in revenue, which they consider the financial backbone of the country.

According to the founder, “Middle-market business owners employ 40% of Americans, but the financial system has never been designed around their complex needs.”

That gap between support and responsibility has been recognized and bridged by Flex. This approach looks like an operating system more than just a bank. The owner initiated something simple, majorly with Flex business credit card, payments and working capital, along with the expense tools. Their motive is to offer consolidation. As once owners link to flex, they no longer juggle the patchwork of software they have changed alongside over the years.

However, the real story highlights AI architecture and its contribution behind closed doors. Flex is a sought-after AI suite development which will be majorly working as an assistant for the company's back office. The company has announced its plan to offer AI agents that will work as a finance team together and will possibly include cash-flow agents, underwriting agents, ERP agents, and expense agents.

The lead investor of portage, Jake Bodanis, said, “Flex is building a category-defining financial institution. The company has proven that middle-market business owners are both massively underserved and extremely valuable to customers when given the right financial infrastructure. Flexs hypergrowth and best-in-class capital efficiency speaks to how powerful this model is"