Water Street Healthcare Partners LLC and middle-market private equity firm JLL Partners LLC have completed their acquisition of Milwaukee, Wis.-based Dohmen Life Science Services.

Financial details of the acquisition were not disclosed. Dohmen Life Science Services will continue to operate under its existing name.

Under the deal, Dohmen Life Science Services will be merged with Water Street Healthcare Partners' commercialization services platform.

Cynthia LaConte will step down as CEO of Dohmen Life Science Services to remain with its former owner, The Dohmen Co. Dan Johnson will retire as Dohmen Life Science Services president but will remain as an adviser to support the company's transition to new ownership.

Dohmen Life Science Services offers outsourcing services to biopharma and medical device companies.

Water Street Healthcare Partners is a strategic investor focused exclusively on the healthcare industry.