Shiftgig, an on-demand labor marketplace, raised another $20 million in Series C financing. Shiftgig plans to use the investment to accelerate sales and marketing operations and drive product innovation.

The funding round brings the company’s total capital raised to $56 million and supports its aggressive growth strategy, according to the company. New and existing investors include DRW Venture Capital, FJ Labs, GGV Capital, KDWC Ventures and an affiliate of William Blair.

“The success of Uber, Lyft, Postmates and other mobile consumer marketplaces have demonstrated that millions of individuals seek flexibility with their work schedules,” said Eddie Lou, Shiftgig’s co-founder and CEO. “Consumers aren’t the only ones taking advantage of labor service platforms, businesses are starting to think strategically about the future of workers. This funding will allow us to fulfill our mission of connecting businesses to millions of qualified, hourly workers seeking short-term gigs.”

The funding puts Shiftgig well ahead of two notable competitors in terms of funds raised for growth, TechCrunch reports. Others in the same space include Workpop and Wonolo, both of which have raised under $10 million to date. Wonolo last week received an investment from Tokyo-based Temp Holdings Co. Ltd.

Shiftgig also reported revenue tripled year over year in 2016 and the size of its client base doubled. Verticals expanded last year from foodservice only and now include the hospitality, retail, experiential marketing and logistics/warehouse sectors.

Shiftgig is an app-based mobile platform that connects businesses and workers on demand. More than 1,500 businesses nationwide access temporary labor directly through the Shiftgig app, according to the company.