AI-powered finance startup Flex has raised $60 million in a Series B round led by Portage Ventures, as it doubles down on its bid to become a one-stop financial hub for mid-sized business owners. The new funding values the company at around $500 million and takes its total equity raise to $105 million, according to a Reuters report published by Cyprus Mail.
Going after the “jumbo shrimp” segment
Instead of chasing either small merchants at the bottom of the market or deep-pocketed enterprises at the top, Flex is deliberately targeting what founder and CEO Zaid Rahman calls “jumbo shrimps”, mid-sized, profitable companies with annual revenues between $2 million and $100 million.
These firms are often too big for basic small-business tools, yet not large enough to command the bespoke attention global banks reserve for their blue-chip clients. Flex’s target customers are typically served by regional banks and are frequently overlooked by traditional fintech platforms, the company says.
Rahman describes Flex’s approach as broad products, narrow audience. The product suite spans private credit, business finance, personal finance and payment tools, but is built for a tightly defined slice of business owners rather than the mass market.
According to him, this group is far more economically significant than their size might suggest. Flex estimates that a few hundred thousand such “jumbo shrimp” business owners together touch about 40 per cent of American payroll, underscoring the company’s belief that this mid-market segment punches well above its weight in terms of employment and economic impact.
From point tools to a bundled finance stack
Where many AI startups pick off one specific workflow, say, bookkeeping or expense reports, Flex is pitching an integrated, AI-enabled finance stack.
The company’s tools include a business credit card and software that pulls together multiple strands of a business owner’s financial life. Rather than having separate providers for credit, payments, and personal finance, Flex wants owners to manage all of these through a single platform.
The bet is that consolidation and automation are worth more to time-strapped founders than another specialised point solution. Rahman notes that many medium-sized companies do not have large, in-house finance teams, so owners themselves are often left juggling credit lines, budgeting and payments on top of day-to-day operations.
Flex: AI with a human safety net
Flex’s model is being built in the middle of a broader funding surge for AI startups, but also against a backdrop of scepticism about how much of that technology will actually be used in the real world.
The company points to research from MIT, cited in the Reuters report, which found that only about 5 per cent of AI projects advance beyond the pilot stage. For investors, that statistic has become a shorthand warning: many AI proofs-of-concept never turn into products that customers actually rely on.
Flex’s answer is to pair AI systems with financial experts, rather than leaving sensitive money decisions entirely to algorithms. The company says it is trying to reduce inaccuracies by ensuring AI-generated outputs are reviewed by human specialists before they reach customers.
That hybrid approach appears to be gaining traction. Flex reports that growing adoption of its tools, including the business credit card, has helped the company triple its payments volume to $3 billion within 12 months.
Moving upmarket with Flex Elite
Alongside the funding announcement, the company is also preparing to launch an invite-only consumer card called Flex Elite.
Positioned as an upmarket product, Flex Elite is designed to compete with the Amex Centurion card, one of the best-known “black cards” in the world and a status symbol among high-net-worth individuals. By moving into this space, Flex is signaling that it sees opportunity not only in business payments but also in the personal finance needs of wealthy clients, many of whom are also founders or owners of the mid-sized firms it targets.
Details such as fees, rewards and eligibility criteria for Flex Elite have not been disclosed in the report, but the company’s decision to make it invite-only underlines the exclusive positioning it is seeking.
Using fresh capital for product and people
Flex plans to use the $60 million infusion primarily to accelerate product development and bring more customers onto the platform.
A significant portion of the money is earmarked for expanding its team, which currently stands at about 80 people. Hiring is expected across product, engineering, risk and customer-facing roles as the startup looks to deepen its capabilities and support a larger client base.
The combination of a relatively narrow customer focus and a bundled product strategy gives Flex a defined path for deploying its new capital: build more tools tailored to mid-sized businesses, and then add the people needed to support and refine those tools at scale.
A test case for mid-market fintech
Flex’s trajectory will be closely watched as a test of whether AI-driven platforms can win in the under-served mid-market, a segment that sits between flashy early-stage startups and giant corporations, yet plays a crucial role in employment and regional economies.
If the company can prove that a blend of AI and human financial expertise can streamline complex money management for “jumbo shrimp” businesses, it could strengthen the case for other fintechs to follow a similar path.
For now, the new funding round gives Flex both the capital and the mandate to push ahead: building out its all-in-one finance stack, scaling beyond its current customer base and seeing how far the “jumbo shrimp” strategy can go in a market where mid-sized firms often feel they have been left to fend for themselves.
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