Maximum, a Miami-based fintech aiming to replace decades-old core banking systems, announced on August 3, 2026 it has raised $30 million in seed funding led by CRV, with participation from Pear VC, Restive Ventures, Plug and Play Ventures, and Anthemis. The company declined to disclose its valuation.
The startup is building what it calls an AI-native operating system designed to supplant the legacy platforms that power more than 70% of the roughly 5,000 banks across the United States. That's a significant market, though not an uncrowded one. The pitch arrives at a moment when banks are grappling with aging infrastructure and mounting pressure to automate operations while managing increasingly sophisticated threats.
Maximum was founded by Randy Fernando, who has a track record of exits that might explain why CRV returned to back him again. He sold Vault to Acorns in November 2017, then sold Power Finance to Marqeta in January 2023 before leading product management for Marqeta's credit card platform. CRV had invested in Power Finance, establishing a relationship that carried forward into this new venture. Anthemis also followed Fernando from the earlier deal.
The capital will flow into product development, engineering expansion, and supporting early bank implementations. Maximum's platform promises real-time visibility into customer activity, allowing banks to build and deploy custom AI agents that automate workflows and launch new products. The company emphasizes security controls designed for what it describes as "more intelligent and persistent threats," though specifics remain vague at this stage.
Initially, Maximum is targeting larger community and regional banks, with plans to broaden to institutions of all sizes over time. The company said it has a "growing base of customers" but wouldn't name any. That caution is understandable for a startup still in stealth mode with early clients, though it leaves unanswered questions about traction.
The competitive landscape is dense with both legacy incumbents attempting reinvention and newer challengers claiming similar AI-native visions. nCino has announced an "Agentic Operating System" that lets banks build custom agents. Fiserv launched agentOS for banking AI agents. Backbase markets an "AI-native Banking OS," while 10x Banking sells a cloud-native bank operating system. Thought Machine offers cloud core banking infrastructure. The terminology blurs together, which may be precisely the problem Maximum hopes to solve.
An American Bankers Association survey published in early 2025 found only 53% of bankers were extremely or somewhat satisfied with their core technology vendors, creating an opening for new entrants. Market research suggests core banking modernization could grow from roughly $27 billion in 2026 to $40 billion by 2031, though projections in this sector have historically been optimistic.
"We believe banking technology has reached that moment," said Caitlin Bolnick Rellas, general partner at CRV, in the company's announcement. "Randy has repeatedly identified foundational shifts before the broader market, and we're excited to back him for a second time as Maximum builds what we believe will become the operating system for the next generation of banking."
CRV raised a $750 million Fund XX in August 2025, according to TechCrunch, giving it fresh capital to deploy on precisely these kinds of infrastructure bets.
Fernando framed the opportunity in familiar terms. "The advancement of AI is creating a paradigm shift in financial services, and banks can't keep pace by relying on legacy providers," he said. "Maximum will provide banks with ultimate control, powerful agentic capabilities, and the tools to innovate."
The $30 million seed round ranks among the larger early financings in fintech, comparable to Sycamore's $65 million seed in March 2026 for an enterprise agent operating system, and Oak's $60 million seed in July 2026 for an AI-native identity platform. Whether Maximum can translate funding and founder credibility into actual bank migrations remains the central question. Core banking replacements are notoriously complex, expensive, and risky for institutions to undertake. The graveyard of well-funded challengers is not small.
Still, if the existing systems truly power 70% of American banks and satisfaction sits barely above 50%, the window for disruption may be wider than usual. Fernando is betting his third act on it.
