Water Street Healthcare Partners has announced it has invested in MedSpeed.

MedSpeed, founded in 2000 and based in Elmhurst, Illinois, is a provider of same-day logistics services to the healthcare industry, transporting specimens, pharmaceuticals, supplies and more. The company reports operating hubs across more than 30 states.

Water Street, founded in 2005 and based in Chicago, is a private equity firm focused exclusively on healthcare. Within the industry, Water Street targets investments in healthcare services, medical products and diagnostics, and pharmaceutical and life sciences.

Terms of the investment were not disclosed.