Eighteen Hispanic, African American and women-owned businesses in Fairfax County were recently recognized as some of the largest or fastest-growing companies nationwide in their respective categories.

"Fairfax County is proud to be a community in which companies of all descriptions can and do succeed to a greater extent than in the rest of the region, the state or the country," said Gerald L. Gordon, president and CEO of the Fairfax County Economic Development Authority.

Eleven Fairfax-based businesses, with a total of $655 million in revenue and more than 3,000 employees in 2011, were named among the 500 largest Hispanic-owned businesses in the nation based on revenue.

The companies were: MicroTech LLC of Tysons Corner, GeoLogics Corporation of Alexandria, SCI Consulting Services Inc. of Tysons Corner, Computing Technologies Inc. of Fairfax, Priority One Services Inc. of Alexandria, Kemron Environmental Services Inc. of Tysons Corner, Citizant of Chantilly, Communications Resource Inc. of Tysons Corner, NMR Consulting Inc. of Chantilly, Engineering, Management & Integration Inc. of Herndon and MAC Aerospace Corp. of Chantilly.

Five Fairfax-based businesses, with a total of $613 million in revenue and 5,000 employees in 2011, are on the 2012 Black Enterprise magazine list of the 100 largest African American-owned companies in the U.S.

The companies were: Thompson Hospitality of Herndon, COMTek of Chantilly, SoBran of Fairfax, Metters Incorporated of Tysons Corner and InScope International of Reston.

Two Fairfax-based companies, GCS Inc. of Tysons Corner and Ampcus Inc. of Chantilly, were also named to a list of the 50 fastest-growing woman-owned/led companies in North America by the Women's Presidents' Organization and America Express OPEN.