Primus Invests in Laboratory Partners, Inc.

1/11/2008

CINCINNATI, OH — Primus Capital Funds (“Primus”) has led a growth capital investment in Laboratory Partners, Inc. (“Lab Partners”). Primus Capital Fund VI, LP invested $10.0 million in equity joining current investors including Oxford Bioscience Partners, Chrysalis Ventures and Fort Washington Capital Partners Group. Lab Partners is a regionally focused full-service provider of clinical diagnostic testing services for hospitals, healthcare facilities and physicians in the Midwest. Marathon Asset Management, LLC has provided debt capital in support of Lab Partners.

The new investment in Lab Partners enables the Company to continue its acquisition program and to broaden its range of services. Dr. Keith Kerman, a Managing Director of Primus, will join Lab Partners’ board of directors.

CEO Richard Daly of Lab Partners commented, “Lab Partners is one of the largest regional full-service laboratory service companies, and we look forward to continuing to expand our testing platform and geographic coverage. Primus brings significant expertise and additional resources that will help us as we grow. We are excited about our partnership with Primus.”

Dr. Kerman commented, “We are impressed with Lab Partners’ range of services and the high quality of the Company’s clinical testing. Being responsive to patients, physicians and healthcare facilities is an essential feature of high quality laboratory services. Lab Partners has established itself as a leader in clinical quality and customer service. We think this is an excellent service model and we look forward to great growth.”

Founded in 1983, Primus Capital Funds is a private equity firm that invests in high-growth companies within the healthcare, business services, communications and for-profit education industry sectors. Transaction types include management-led buyouts, control and non-control recapitalizations and growth capital.