Mercury, the San Francisco-based business-banking fintech, has raised USD 200 million in a Series D funding round led by TCV at a USD 5.2 billion valuation. The company announced the transaction on 20 May 2026.
The new valuation is approximately 48.6% above the USD 3.5 billion mark set at the company's previous Series C round, reflecting continued investor appetite for financial infrastructure companies serving small and mid-sized businesses.
TCV LEADS OVER EXISTING BACKERS
TCV, the growth investor with a long track record of investments in payments and internet financial services, is the lead in the Series D. Alongside TCV, the round drew participation from a set of Mercury's existing backers, including Andreessen Horowitz, Coatue, CRV, Sapphire Ventures, Sequoia Capital and Spark Capital.
That combination of a new lead and reinvestment by prior shareholders is often read by the market as a sign of alignment between existing and incoming investors on valuation and strategy. In Mercury's case, the presence of multiple large crossover and venture investors on the cap table gives the company the option to remain private for an extended period if it chooses.
The company said the fresh capital will be deployed against continued product development and growth. Mercury's core proposition centres on business banking services delivered through a modern digital interface, aimed at start-ups and small businesses that have historically found traditional bank offerings poorly suited to their workflows.
PROGRESS TOWARDS A NATIONAL BANK CHARTER
The funding comes shortly after a significant regulatory milestone for Mercury. The company received conditional approval from the Office of the Comptroller of the Currency for a US national bank charter in April 2026 and is currently in the bank organisation phase, the stage during which an applicant builds out the governance, capital and operational arrangements required before a charter can be finalised.
Securing a national bank charter would represent a strategic shift for a company that has to date delivered its services through partnerships with chartered banks. A charter would allow Mercury to hold deposits and provide certain services directly rather than through intermediaries, potentially improving unit economics and giving the group more direct control over its product roadmap.
The organisation phase typically requires the applicant to hire senior banking executives, put in place risk and compliance frameworks and satisfy regulators that the operating model is ready for supervision. The USD 200 million raise provides balance-sheet firepower to fund that work alongside ongoing product investment.
For investors, the combination of a conditional national bank charter and a materially higher valuation frames Mercury as one of the more advanced US fintech candidates pursuing regulated bank status. Whether the group secures its full charter on the expected timeline will be a key determinant of its ability to deliver against the growth trajectory implied by the new valuation.
Mercury confirmed the round in a statement issued via the BusinessWire newswire on 20 May 2026. The company said the proceeds would support its continued growth as it works through the bank organisation phase following its conditional OCC approval received in April 2026.
The syndicate combines a new lead in TCV with continued backing from Andreessen Horowitz, Coatue, CRV, Sapphire Ventures, Sequoia Capital and Spark Capital, providing the company with a broad base of long-term investors as it moves through the regulatory milestones ahead.