Mercury, the business-banking platform for startups, has raised a $200 million Series D at a $5.2 billion valuation — but the more telling number is four: the consecutive years it has been profitable. In a market where most venture-backed fintechs still burn cash to chase growth, Mercury is doing the opposite of the neobank playbook, pairing GAAP profitability with a pursuit of its own US national bank charter rather than renting one from a sponsor bank.
That combination is the real signal here. Having tracked the banking-as-a-service (BaaS) sponsor-bank model since its compliance reckoning began in 2024, the standout in this round is not the headline valuation — up 49% from the $3.5 billion Mercury commanded at its Series C in March 2025 — but the conditional approval it secured from the Office of the Comptroller of the Currency (OCC) to establish Mercury Bank, N.A. The raise funds a structural shift: from fintech-on-top-of-a-bank to fintech-that-is-a-bank.
The Series D was led by TCV, with participation from existing backers Andreessen Horowitz, Coatue, CRV, Sequoia Capital, Sapphire Ventures and Spark Capital, according to Crunchbase News. The round brings Mercury’s total funding to roughly $700 million since its 2017 founding. The company reported $650 million in annualised revenue as of the third quarter of 2025 and says it has now delivered four straight years of profitability on both a GAAP net income and an EBITDA basis, per its funding announcement. It serves more than 300,000 companies.
The charter is the competitive wedge, and rivals are watching. Most consumer- and business-facing fintechs — from spend platforms to neobanks — rely on partner banks to hold deposits and issue cards, a dependency that turned into a liability when the OCC and Federal Reserve tightened scrutiny of bank-fintech “rent-a-charter” arrangements. By securing its own charter, Mercury removes the sponsor-bank middle layer that constrains peers. That puts pressure on the BaaS infrastructure tier — Unit, Synctera and Treasury Prime — whose value proposition is precisely the bank access Mercury is now building in-house. It also sharpens the contrast with corporate-spend rivals: Ramp was last valued at $44 billion, while Brex agreed to sell to Capital One for $5.15 billion, a near-60% markdown from its 2021 peak.
“AI is collapsing the friction between an idea and a company faster than anything I have seen in my career,” said Immad Akhund, co-founder and chief executive of Mercury, framing the raise around a surge in company formation. Mercury says applications rose 2.5x in the first quarter of 2026 versus a year earlier — a demand signal that, if it holds, validates the bet that more new businesses means more primary operating accounts to capture early.
The timing matters because the fintech financing window has only just reopened. As we reported when Chime turned its first profit as the IPO wave stalled, public-market investors have lost patience with unprofitable scale. Mercury’s four-year profitability record is the answer to that scepticism, and it lands as other digital banks chase regulatory legitimacy of their own — see KOHO’s push for a Canadian bank licence. The capital-efficient, charter-holding operator is becoming the template the next cohort is measured against.
There is a contrarian read worth stating. A national bank charter is not a free upgrade: it brings capital requirements, Community Reinvestment Act obligations, direct OCC examinations and a compliance overhead that sponsor-bank arrangements outsource. Mercury is trading flexibility for control, and the cost base that comes with being a regulated bank could compress the very margins that make its profitability story compelling. The same logic that lets it disintermediate BaaS providers also exposes it to the full weight of bank supervision.
For the broader sector, Mercury’s round reframes what a “successful” fintech looks like in 2026: profitable, infrastructure-owning, and regulated rather than growth-at-all-costs and bank-dependent. As Ramp’s $44 billion valuation showed, the market still pays up for category leaders — but it now wants the unit economics to match. Expect the next wave of business-banking and spend fintechs to face a sharper question from investors and regulators alike: where do your deposits actually sit, and who is liable when they move?
This article is informational analysis only and is not financial, investment, or trading advice. Always do your own research and consult a regulated adviser before making financial decisions.
Rick Steves
Rick Steves has seen business and economics through many lenses. He joined the financial services industry in 2009, and has been a financial journalist since 2011. He holds a degree in Business Administration and has experience producing real-time news, from both buy-side and sell-side, as well as for retail traders, brokers and service providers. Steves' work has appeared in a variety of online publications including FX Street, NewsBTC, FinanceFeeds, and The Industry Spread. Rick has great interest in the dynamics of the trading industry. The never-ending clash between technology, economics, regulation, and more importantly, the people.
