Doug Davidian

Citadel Advisors LLC is a SEC-registered investment advisor and hedge fund manager headquartered in Miami, Florida. The firm was founded in 1990 by Kenneth Griffin and is wholly-owned by Citadel Advisors Holdings LP, ultimately held by GFH HFEVA LLC. Citadel Advisors manages private investment funds that are offered exclusively to sophisticated investors.

Metalmark Capital LLC (Metalmark Capital) is a private equity firm founded by John J. Moon in 1986. The firm is headquartered in New York.

Premier Research Group Ltd. provides contract research services to pharmaceutical industry. It engages in analgesics, neuroscience, medical devices, rare diseases and pediatrics. The company offers pediatric experience with both familiar and extremely rare childhood illnesses, including work at PICUs, NICUs, clinics, ERs and neonatal studies. Premier Research Group was founded in 2002 and is headquartered in Wokingham, the United Kingdom.

Cinven Group Ltd (Cinven Group) is a private equity firm founded in 1977. The firm is headquartered in London, United Kingdom.

National Seating & Mobility, Inc. provides wheelchairs and adaptive seating systems. It specializes in providing custom seating and mobility systems for teens, adults and seniors who are challenged with severe trauma, disease, and skeletal disorders. The firm offers services for individuals with permanent or long-term loss of mobility. The company was founded by William Michael Ballard in 1992 and is headquartered in Franklin, TN.

Young Life provides activities and support services. It is a christian ministry that reaches out to adolescents through volunteers, staff, club meetings, and camps. The company was founded on October 16, 1941 and is headquartered in Colorado Springs, CO.

America's Promise Alliance operates collaborative network that facilitates volunteer action for children and youth. Its partners are corporations, nonprofit service organizations, foundations, policymakers and advocacy organizations. The company was founded by Colin L. Powell and Ray G. Chambers in 1997 and is headquartered in Washington, DC.

Free Library of Philadelphia provides library services. It offers all segments of collection of recorded knowledge, ideas, artistic expression and information in variety of media. The organization provides more than 6 million items, ranging from books and magazines to art, music, film, and other media. Free Library of Philadelphia was founded by Dr. William Pepper in 1861 and is headquartered in Philadelphia, PA

Greater Twin Cities United Way provides services related to basic needs, education and health to the people in some counties in Minnesota. The company was founded in 1915 and is headquartered in Minneapolis, MN.

Cressey & Co. LP (Cressey & Co) is a private equity firm. The firm is founded in the year 2008 by Bryan Charles Cressey and it is headquartered in Chicago, Illinois and Nashville, Tennessee.

Parametrix, Inc. engages in the provision of engineering, planning, and environmental services. It offers multidisciplinary services in transportation; cultural resources; funding and grant assistance; water resources, and community building. The company was founded by Waite Dalrymple and George Capestany in 1969 and is headquartered in Seattle, WA.

Kissner Group Holdings LP produces and supplies bulk salt and specialty packaged salt. The company is headquartered in Toronto, CA.