DynCorp of Reston, a diversified government services and commercial aviation services firm, acquired Meridian Corp. of Alexandria for an undisclosed amount.

Meridian, an engineering, information systems and management consulting firm, was founded in 1978, has 200 employees and about $18 million in annual revenue.

The acquisition is DynCorp's third this year aimed at reducing the company's reliance on the Department of Defense. In February DynCorp acquired Bell Technical Operations Corp. and in April acquired Program Resources Inc.

Meridian will become a wholly owned subsidiary of DynCorp, which has 18,000 employees and annual revenue of almost $700 million.

Graphic Arts Machinists Inc. of Capitol Heights and its subsidiary Chris Machine & Rigging were acquired from their former owner by a partnership of three Graphic Arts employees. Terms of the sale were not disclosed.

Graphic Arts provides press sales, reconditioning and rigging services to the Washington printing industry. It was founded in 1979 and acquired Chris Machine in 1980.

Afrispace Inc. of Washington awarded a $40 million contract to International Technologies Inc. of McLean to construct an international radio broadcast satellite system. Afrispace is an organization dedicated to providing satellite radio transmission to Africa and the Middle East.

Nova International Inc. of Washington was awarded a $1 million contract by Mobil Corp. of Fairfax to supply office furniture and interior design services in Mobil's London offices.

IDB Aero-Nautical Communications Inc. of Rockville entered an agreement with Cruisephone Ltd. of Fort Lauderdale, Fla., to provide telecommunications services to the pleasure cruise and private yacht markets worldwide.

The Washington law firm of Thompson, Hine and Flory was awarded a contract by the state of Maryland to provide legal services to the state's office of attorney general.

Adapso of Arlington, a computer software and services industry association, formed the Bernard Goldstein/Milton R. Wessel Dispute Resolution Center.

General Kinetics Inc. of Rockville announced the expansion of its manufacturing facility in Johnstown, Pa., to support its Electronic Enclosure Division.

K2 Construction Consultants Inc., which provides CPM Scheduling, contract dispute preparation and evaluation and surety company default evaluation services, opened in Rockville.

Bailey, Morris & Newhall, a government relations firm specializing in health care, pharmaceuticals and insurance, opened in Washington.

Netrix Corp. of Herndon formed a users and partners group for companies with Netrix #1-ISS Integrated Switching System networks.

RHS Corp. of Alexandria, American Energy Concepts Inc. of Johnson City, Tenn., Discovery Workshops Inc. of Chicago and Multimedia Design Inc. of Blanchester, Ohio, formed the Consolidated Systems Group, a technology consortium, in Alexandria to provide integrating systems for airport security, energy management and intelligence gathering and processing.

Homeowners Realty Inc. of Falls Church changed its name to Associated Properties Inc.

The National Women's Economic Alliance of Washington released its 1991 directory of women directors of the top 1000 corporations.

Announcements of news and developments affecting Washington area companies should be sent to Regional Report, Business News Department, The Washington Post, 1150 15th St. NW, Washington, D.C. 20071.