The last 12 months has represented one of the most successful periods of time in Southern California’s short tech history. Between the flurry of fundings and the seemingly endless reports of new, exciting products, tech companies all over the area have achieved much, much more than what many — especially those from up north — had previously thought possible. Recently, Built In LA published our 2017 edition of the Top 100 digital tech employers in LA and Orange Counties. Here are the companies who experienced the most substantial personnel growth since 2016.

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Number of LA/OC employees: 258

Positions climbed: 34

Net employee increase: 118

Year in review: A few months after checking in at number 58 in our list of Top 100 digital companies in LA and OCServiceTitan — which initially launched as way for two recent grads to help their parents manage their blue-collar businesses in a more efficient manner — scored an $80 million Series B, without ever having to leave the company’s Glendale headquarters. Since then, the company has added roughly 20 employees each month, and while they reported a headcount of 258 back in October, CEO Ara Mahdessian told Built In LA that the company plans to be north of 300 employees by the end of 2017.ServiceTitan is Hiring | View 79 Jobs