MERGERS AND ACQUISITIONS

Raytheon Co., a Massachusetts-based defense contractor, bought UTD Inc., a privately held science and engineering company based in Springfield, Va. Terms were undisclosed.

PRIVATE EQUITY

TGSSoft Inc., a Vienna employee-recruitment Web site, sold $5.9 million of Series A preferred stock to three investors, according to a filing with the Securities and Exchange Commission. Beneficial owners of the company include chief executive Robert J. McGovern and Reston venture capital firm New Enterprise Associates. The company will use the money to repay debt and for working capital.

VitalSpring Technologies Inc., a McLean health care benefits software firm, sold $3.15 million of Series B convertible preferred stock to 32 investors, according to an SEC filing. Beneficial owners include chief executive Sreedhar V. Potarazu. Directors include technology entrepreneur Ken Bajaj; Frank J. Cilluffo, associate vice president for homeland security at George Washington University, and Richard Perle.

Wisor Telecom Corp., a Gaithersburg telecommunications software firm, sold $1.5 million of Series F convertible preferred stock to five investors, according to an SEC filing. Beneficial owners include SAIC Venture Capital Corp., Reston's Mid- Atlantic Venture Funds LP, and Hickory Venture Capital Corp. of Alabama.

Centuria Corp., an Alexandria firm seeking to do acquisitions in the information security sector, sold $8.8 million of preferred stock and stock warrants to 99 investors, according to an SEC filing. The company listed retired Major Gen. Bruce M. Lawler as an executive and beneficial owner.

CSM Wireless LLC, a Great Falls-based wireless services provider, has sold $80.7 million of preferred units to 13 investors, according to an SEC filing. Beneficial owners include Alexandria venture capital firm Columbia Capital Equity Partners and Boston's M/C Venture Partners.

Luna Innovations Inc., a Blacksburg, Va., technology company, sold $7 million of Class C common stock to one investor, according to an SEC filing. Beneficial owners of the company include Carilion Health System, based in Roanoke.

TechBooks, a Fairfax company that provides electronic content services, said Bethesda business finance firm American Capital Strategies Ltd. invested $45 million in the company in the form of equity and subordinated debt.

Hillcrest Laboratories Inc., a Rockville company that makes navigational software and devices for users of multimedia, sold $14.8 million of Series C preferred stock to six investors, according to an SEC filing. Beneficial owners include New Enterprise Associates, Timonium-based Grotech Capital Group Inc., and Columbia Capital Equity Partners.

Carlyle Group, a Washington buyout firm, sold laminate maker Panolam Industries International Inc. for about $375 million, to a consortium of investors consisting of Genstar Capital LLC and Sterling Group LP, as well as management.

PUBLIC EQUITY

Foundation Coal Holdings Inc., a Linthicum Heights, Md., owner of coal mines, registered with the SEC to sell 10 million common shares for certain stockholders. Although it did not identify which existing stockholders would sell or how much, two major private equity firms are the firm's biggest shareholders: Blackstone Group LP of New York and First Reserve Corp. of Connecticut. Shares closed Friday at $32.59.

TNS Inc. of Reston, a provider of communications services for financial transactions, registered with the SEC for a proposed public offering of 7 million common shares, including 6 million for certain shareholders. Shares closed Friday at $22.35.

Compiled by Terence O'Hara and Bloomberg News.