Interlock Equity has announced a strategic growth investment in VeloSource.

VeloSource, founded in 2015 and based in St. Louis, Missouri, is a healthcare staffing and recruitment agency specializing in locum tenens services.

Interlock, founded in 2021 and based in Los Angeles, is a private equity firm that invests in lower middle market companies across North America. The firm focuses on healthcare, life sciences and a few other sectors, and it pursues companies with $15 million to $150 million in revenue.

Terms of the investment were not disclosed.