NEW YORK — Probook, an artificial intelligence operating system designed for home service businesses, announced it has secured $40 million in funding, including a $34 million Series A round led by Andreessen Horowitz and a $6 million Seed round led by Sequoia Capital. Sequoia also participated in the Series A investment.

The company said it developed its platform around dispatch operations, which it describes as the central function connecting customer communication, scheduling, and field service execution. According to Probook, many home service businesses have adopted multiple AI tools in recent years, creating disconnected customer experiences and operational workflows.

Probook's platform combines dispatch, customer intake, data management, customer messaging, and outbound communications through a shared system. The company said the approach allows customer interactions to remain connected from the initial inquiry through job completion.

George Eliadis, CEO and co-founder of Probook, said the company was created to address operational challenges he experienced firsthand while working in home services. He later spent time inside TR Miller, an HVAC, plumbing, and electrical contractor in Illinois, where he observed similar dispatch and communication issues at a larger scale.

"Dispatch is the hardest problem in home services," Eliadis said. "If you don't start there, you can't understand the business."

The company said it works directly with customers during implementation, configuring the platform alongside front-line teams and providing ongoing support.

Probook currently serves customers across hundreds of locations nationwide, including independently owned contractors and private equity-backed service platforms. Customers include TurnPoint Services, Master Trades Group, Del-Air, Peterman Brothers, and Sila Services.

"With Probook, we've centralized dispatch across 11 markets and 180 technicians without adding overhead. That kind of scalability is critical to how we grow," said Chad Peterman, CEO of Peterman Brothers.

Summers Plumbing, Heating & Cooling, with 14 locations and 260 technicians on the platform, booked 2,542 jobs in its first month on Probook with zero human intervention.

Del-Air, an 8-location operation in Florida, runs Probook across the stack. "We chose Probook over other AI vendors because they know dispatch. They're also part of our front-line CSR," noted Rick Rogers, CEO.

David Haber, general partner at Andreessen Horowitz, said the firm's investment was driven by Probook's focus on dispatch as a foundational business function.

"Dispatch is the nerve center of every home service business, and Probook built their entire platform around it," Haber said.

Konstantine Buhler, partner at Sequoia Capital, said the firm's continued investment reflects confidence in both the company's leadership and its market opportunity.

Probook said it will use the new capital to expand its go-to-market organization, increase engineering resources, and grow its customer success team to support continued demand for the platform.