Job boards and marketplaces continue to lead the HR technology category in venture capital investment and RigUp has been a big part of that story, now raising a total of $450 million. This doesn’t just represent a trend for talent marketplaces, but also in specialization and focus on under-served job/talent categories. Job boards continue to lead the HR technology in growth through specialization.

RigUp, the energy industry’s largest marketplace for on-demand services and skilled labor, has raised a $300 million Series D round led by Andreessen Horowitz (a16z) with participation from existing investors, including Founders Fund, Bedrock Capital, and Quantum Energy Partners. New investors include Baillie Gifford and Brookfield Growth Partners. David George, general partner at Andreessen Horowitz, will join RigUp’s board.

Source: RigUp Raises $300 Million Series D Led by Andreessen Horowitz