Mark Cuban Backs Dallas Startup SpendRule with $4 Million Seed Round

Mark Cuban's Radical Investments led a $4 million seed round in SpendRule, a Dallas startup whose AI checks whether health care systems actually get what they negotiated. Zeal Capital Partners, based in Washington, D.C., joined the round. The deal brings SpendRule's total funding to $6 million since its founding in 2025.

The company left stealth mode in February with a $2 million round. Abundant Venture Partners led that earlier round, with participation from iZeal Capital Partners and MemorialCare Innovation Fund. SpendRule said the new money will fund product development, engineering hires and expansion of the platform into other business sectors.

Cuban framed the investment as a fix for a basic lapse in corporate discipline. "Companies spend all this time negotiating contracts, but what's the point if nobody checks whether they're getting what they paid for? That's the problem SpendRule is solving," Cuban said in a statement announcing the funding.

How much spending does SpendRule track?

Health care systems already run SpendRule across $2.91 billion in annual spending on purchased services, spread over nearly 2,200 vendors, the startup said. The platform reads each contract's terms and checks every invoice against them. That lets organizations prevent overpayments, recover money they are owed and secure the terms they negotiated.

Co-founder and co-CEO Joseph Akintolayo described the product as an enforcement layer for agreements. "SpendRule turns agreements and policies into deterministic decision systems that actually run," Akintolayo said in a statement. "They check what was billed, chase what's missing and prove the result. With one instruction, 'activate ongoing verification for this agreement,' finance teams can put any contract under continuous enforcement."

The software targets hospital-purchased services supplied by third-party vendors. Those services include medical waste management, laundry, IT management and cybersecurity.

Co-founder and co-CEO Chris Heckler put the stakes in operational terms. "Nurses, techs and the people who keep the building running aren't the cost problem. Paying more than you agreed to is," Heckler said in a statement. "Every dollar lost to a billing mismatch is a dollar that didn't go to care. This gives health systems another place to find margin without cutting patient care."

Why do hospitals miss these overpayments?

Akintolayo and Heckler built SpendRule after concluding that health care systems lacked a workable way to track purchased services. The industry watches its supply chain closely, Akintolayo said, but purchased services sit outside that discipline.

"There's too much unique information and no way to standardize it," Akintolayo said. "There's no way to put it all in one place, understand it and use it to make decisions."

The problem is structural. At most health care systems, three separate software programs handle document management, vendor information and accounts payable automation, he said. "These three pieces never speak to each other and are being used by totally different parties," Akintolayo said.

SpendRule's software closes that gap by analyzing the original contracts between vendors and health organizations and comparing them against invoices. On its website, the company puts the cost of the failure at scale: health care systems lose an estimated $32 billion annually to overpayment of purchased services.

Who is behind the company?

Both founders have exits in this territory. In 2021, Akintolayo co-founded Deposits Inc., a cloud-based fintech startup in Dallas. Ingo Payments acquired the company in 2024.

Heckler co-founded Frisco-based Valify in 2014. Valify also helped health systems cut the cost of purchased services. HCA Healthcare, one of the country's largest health care systems, acquired Valify in 2020.

That track record gives Cuban's bet a clear logic. Two founders who already sold purchased-services technology to major operators are now applying AI to the same problem, with a backer who has shown repeated appetite for health care cost transparency plays. The stated plan to move beyond health care into other sectors suggests the $32 billion hospital figure is only the first market SpendRule intends to put under continuous enforcement.