Quartermaster Raises $140M Series B Split Between Equity and Loans

Quartermaster, based in Arlington, raised $140 million in a Series B round, reported Sept 28, 2026. About $100 million is ownership investment from Insight Partners, which moved early to claim the round, with Overmatch Ventures and First Round Capital also investing. The other $40 million is borrowed money through a debt arrangement from Stifel.