* Telenor Satellite Services, an Oslo-based seller of satellite communication services, said it completed the move of its U.S. headquarters to Rockville from Bethesda. The new 38,000-square-foot office in the Tower Oaks campus on Wootton Parkway will house Telenor's 100 local employees. The company has 21,000 workers worldwide.

* TechTravelers, a Fairfax firm that provides travel-management software to businesses, plans to name Peter Collins chief operating officer today. Collins previously was vice president of acquisitions at New York-based Cendant and chief operating officer at Seattle-based Highwire.

* ManTech International, a Fairfax government contractor, said it priced a public offering of 6.15 million shares of common stock at $18. The company said its underwriters will have an option to buy as many as 922,500 additional shares. The company said it will use the proceeds as working capital and to make acquisitions and repay debt. Shares of ManTech closed at $18.20, down 37 cents.

* TSI TelSys Corp., a Columbia company that provides communication and simulation systems, said subsidiary TSI TelSys Inc. signed an agreement to create a new firm, TruWorld Technologies, in conjunction with Reno, Nev.-based ClearStar Global Ventures. Under the agreement, each company will contribute $200,000 to TruWorld Technologies in 2003. TruWorld will develop and market ClearStar's patented information signal technology.

* CreateHope of Bethesda, a developer of software for corporate charitable giving, said AARP will begin using its software among its approximately 2,000 employees.

Compiled from reports by Washington Post staff writers, washingtonpost.com and Dow Jones News Service