* SteelCloud, a Dulles network security company, swung to a loss of $315,929 (2 cents a share) on $5.8 million in revenue during its second fiscal quarter ended April 30, from a profit of $109,243 (1 cent) on $8.2 million a year earlier. For the six months ended April 30, the company lost $1.9 million (14 cents) on $10 million in revenue, compared with profit of $188,787 (2 cents) on $15.9 million a year earlier. The company attributed the loss to delays in booking a new contract. SteelCloud stock closed at $2.61, up 11 cents.

* BAE Systems, a Washington defense contractor, won a $35.4 million contract from the Office of Naval Research to produce 132 high-frequency transmitters that will be placed in the High Frequency Active Auroral Research Program's (HAARP) phased-array antenna system. The HAARP program collects and assesses information on the physical and electrical properties of the ionosphere.

* Orbimage, a Dulles satellite imaging company, won a contract to provide high-resolution imagery to the United States Geological Survey and its partner agencies using its OrbView-3 satellite. The contract is worth up to $15 million and is for one year with two one-year options.

Compiled from reports by Washington Post staff writers, PR Newswire and Business Wire.