Barbara Inkellis

Music Makers Holdings LLC is engaged in the management and operation of music school. It uses arrangements of contemporary rock and pop music, and offers individual lessons and band instruction as well as sponsoring jam sessions, battles of the bands, and recording sessions. The company was founded by Jeff Levin in 2006 and is headquartered in Bethesda, MD.

The District of Columbia Bar provides legal services. The private company is based in Washington.

Navtech, Inc. provided flight operations software and tools for the commercial aviation industry. Its product suite included navigation data solutions, flight planning, aeronautical charts, performance software, electronic flight bag, and crew planning. The company was headquartered in Waterloo, Canada.

Fried, Frank, Harris, Shriver & Jacobson LLP provides legal services. Its clients include Bank of America, Dow Jones and Northrop Grumman. The company has offices in Frankfurt, Hong Kong, London, New York, Paris, Shanghai, and Washington. Fried, Frank, Harris, Shriver & Jacobson was founded in 1971 and is headquartered in New York, NY.

Cambridge Information Group, Inc. (CIG) is a private equity firm founded in 1971 by Robert N. Snyder and Philip E. Hixon. The firm is headquartered in New York.