Co-Founder, Chief Executive, ServiceTitan Inc.

Mahdessian co-founded ServiceTitan in 2012 and has overseen the Glendale-based company’s development from a startup to a company with more than 1,600 employees and a valuation north of $9 billion. ServiceTitan develops software used by home services contractors. Mahdessian grew up watching his father, a contractor, work long days in the field and long nights at home managing the business. He met ServiceTitan co-founder, Vahe Kuzoyan, on a college ski trip, where the two bonded over their shared culture and upbringing. Both are Armenian-American immigrants who saw their parents work their way up from service technicians to proud owners of trades businesses.

YEARS ON THE LA500: 5