David W. Dupree

Meineke Car Care Centers LLC provides automotive repair and maintenance services. Its services include oil changes and brake pad replacement to minor engine repair and tires. The company was founded in 1972 and is headquartered in Charlotte, NC.

PolyPipe, Inc. manufactured plastic pipes and liners. It offered a range of applications including potable and reclaimed water, sewer, mining, landfill, geothermal, irrigation, oil and gas gathering and gas distribution. The company was founded in 1977 and is headquartered in Knoxville, TN.

The Halifax Group LLC (Halifax) is a private equity firm founded in 1999 by Williams L. Rogers and David W. Dupree. The firm is headquartered in Washington, District of Columbia.

PJ United, Inc. engages in the operation of restaurants and pizza stores. It offers cheese sticks, pepperoni, chicken strips, mushrooms, green peppers, anchovies and dipping sauces. The firm has offices in Alabama, Louisiana, Texas, Ohio, Tennessee, Illinois, Missouri, Mississippi & Virginia. The company was founded by Stephens S. Douglas in 1991 and is headquartered in Birmingham, AL.

IASIS Healthcare Corp. owns and operates community-focused hospitals. The company was founded in September 1994 and is headquartered in Dallas, TX.

Soil Safe, Inc. provides soil treatment services. It specializes in the recycling of soil contaminated with a variety of petroleum products and heavy metals. The company is headquartered in Columbia, MD.

Primo Water Corp. is provider of multi-gallon purified bottled water, self-service refill water and water dispensers sold. It operates through the following segments: Refill, Exchange and Dispensers. The Refill segment sales consists of the sale of filtered drinking water dispensed directly to consumers through technologically advanced, self-service machines located at major retailers throughout the United States and Canada. The Exchange segment sales consist of the sale of multi-gallon purified bottled water offered through retailers in the United States and Canada. The Dispensers segment sells water dispensers that are designed to dispense primo and other dispenser-compatible bottled water. The company was founded by Billy D. Prim on October 20, 2004 and is headquartered in Winston-Salem, NC.

United States Environmental Services LLC engages in the environmental contracting services. It specializes in industrial services, response and remediation, and maritime services. The firm offers hydro blasting, chemical cleaning, tank cleaning, vacuum services, oil spill response, hazardous material emergency response, industrial fire suppression, remediation, demolition, and maritime cleaning services. The company was founded in 1996 and is headquartered in Houston, TX.

Halifax Security, Inc. provides security and surveillance integration systems. It provides security services to the casino, gaming, education and healthcare industries. The company was founded by Cynthia Freschi in 1995 and is headquartered in Brick, NJ.

K2 Industrial Services, Inc. engages in the provision of industrial cleaning, coating and maintenance services. It also offers insulation, fireproofing, scaffolding, roofing, and barrier management services. The firm has offices in Alabama, California, Delaware, Florida, Freeport, Illinois, Indiana, Louisiana, Michigan, New Jersey, Nevada, Ohio, Pennsylvania, Texas and Virginia. The company was founded in 1995 and is headquartered in Houston, TX.

Nutrition Physiology Co. LLC provides feed additives to feedlots and dairies. The firm offers Bovamine, a direct fed microbial (DFM) product that enables stabilization of the gastrointestinal tract, and produces an effect on rumen digestion and intestinal nutrient absorption for production efficiency. It also offers its DFM products for the feedlot industry; and the dairy industry, such as cows and calves. The company was founded by Douglas R. Ware and Michael Ray in 1993 and is headquartered in Guymon, OK.

Envision Pharma, Inc. operates as a medical and scientific communications company which provides solutions to the pharmaceutical and biotechnology industries. It offers consulting, technology, medical publications, and market access communication services. The company was founded by Brian Alexander Hepburn and Daniel J. Donovan on October 19, 2001 and is headquartered in Fairfield, CT.

Aptiv Solutions, Inc. provides biological research and development services. It offers adaptive clinical trials, translational research services, regulatory services, pharmacovigilance, clinical staffing, and the operational support of a global clinical research organization. The company was founded in 1983 and is headquartered in Reston, VA.

Passport Parent Corp. provides management consulting services. The company is headquartered in Washington, DE.

TriMech Acquisition Corp. operates as a development stage company. The company is headquartered in Glen Allen, VA.