Post 200 The guide to the region's top businesses

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Private companies


ARINC, part of the Carlyle Group’s portfolio, specializes in communications, engineering and integration services for the government and commercial businesses. The company particularly focuses on providing information-technology support for airports, including systems that manage air traffic, baggage, passenger processing and airport operations. This year, ARINC’s managed services unit, which provides around-the-clock support for airline check-in systems, moved to a new Annapolis headquarters.


In 1929, the Federal Communications Commission licensed ARINC to coordinate radio frequencies among airlines.

2551 Riva Rd.

Annapolis Md., 21401


Founded: 1929

Chairman and CEO: John M. Belcher

Revenue: $1018000

Employees (local): 3100 (1000)

NOTE: Our methodology for the rankings.