Sera Systems
runs the trade.

Most software for the trades is written by engineers who have never crawled through an attic in July. Sera Systems started from the opposite direction. Its founder, Billy Stevens, bought an HVAC and plumbing business from his father-in-law in 1996 and spent decades running service calls before he decided the tools available to contractors were not good enough. In 2018 he founded Sera in Texas to build the platform he wished he'd had.

The result is a field service management (FSM) system aimed squarely at HVAC, plumbing, and electrical contractors - the small and mid-sized shops that keep homes warm, dry, and lit. Sera bundles the day-to-day machinery of a service business into one place: scheduling, dispatching, quoting, invoicing, payments, memberships, and reporting. The pitch is not a feature list. It is a number: Sera says it can lift a customer's operating margin by more than 40% within six months.

That claim is the company's north star, and it shapes the product. Where rivals sell modules, Sera sells the bottom line. Financial data is wired into each job so an owner can see not just whether a technician showed up, but whether the work made money. The company describes its four core pieces as the Admin Portal for the back office, the Tech App for the field, the Customer Hub for homeowners, and an online booking widget for new work.

Sera is based in the Dallas, Texas area, having grown out of Grapevine, and employs roughly 31 people. It is small by software standards, but it has drawn outsized attention for how it funds itself and how it talks to its customers.

The field service management market is crowded and competitive. ServiceTitan sits at the enterprise end, with Housecall Pro, Jobber, FieldEdge, and ServiceFusion filling in the rest. Sera's wedge is not scale - it is usability and outcome. Customers repeatedly describe it as easier to navigate than the category leader. "Simpler and easier to navigate than ServiceTitan," one office manager put it.

The second differentiator is credibility. Sera leans hard on the fact that it comes from the trades. The company says its developers make house calls alongside technicians to understand the workflow they are building for. That origin story is not just marketing - it shows up in details like one-hour appointment windows, a customer-experience feature that most legacy systems never bothered to solve.

The third, and perhaps most unusual, is who owns the company. When Sera raised its Series B in May 2023, the money did not come from a Sand Hill Road venture fund. The eight-figure, oversubscribed round was funded entirely by home-service business owners - the same people who use the product every day. The round valued Sera at roughly three times its Series A valuation from November 2021.

"These investors know how effective Sera is," Stevens said at the time. "They want to be part of it." For a vertical SaaS company, having your customers become your shareholders is about as strong a product-market-fit signal as exists.