MERGERS AND ACQUISITIONS

ICF Consulting Group Inc., a Fairfax consulting firm, announced that it has acquired Caliber Associates Inc., a Fairfax firm that offers high-end consulting services, primarily to U.S. federal clients. Terms of the transaction were not disclosed. Branch Banking and Trust Co. advised Caliber on the transaction. Legg Mason Inc. advised ICF.

PUBLIC OFFERINGS

First Potomac Realty Trust of Bethesda said it will sell 3 million shares for $24.23 each to net about $68.9 million, in a follow-on offering. The company plans to use the proceeds to pay down the balance on its revolving line of credit. The offering was managed by KeyBanc Capital Markets.

PRIVATE EQUITY

VidSys Inc., an Alexandria video communications software firm, sold $6.75 million worth of Series A preferred stock to three investors, according to a Securities and Exchange Commission filing. The money is to be used for working capital. Investors include IDG Ventures Atlantic of Boston and DTS Video Holdings of Alexandria.

AirOcare Inc., a Rockville maker of air-purifying equipment, sold $2.8 million in Series A preferred stock to 22 investors, according to an SEC filing. The money is to be used for working capital.

A&G Pharmaceutical Inc., a Columbia drug research and development firm, sold $2 million in Series A preferred stock to seven investors, according to an SEC filing. About half will go toward repayment of debt, the rest for working capital. Investors include New England Partners Capital LP of Boston, MedImmune Inc. of Gaithersburg, and the Maryland Department of Business and Economic Development.

Imagimed LLC, a Rockville operator of magnetic resonance imaging facilities, sold $12 million in Series A limited liability interests to two investors. The money is to be used to redeem currently outstanding interests. Investors include Wolf Investment Co. of Middleburg, Va.

SunRocket Inc., a Vienna voice-over-Intenet-protocol service provider, sold $25 million in Series B preferred stock to nine investors. The money will be used for working capital. Investors include Nokia Venture Partners, Mayfield Fund and Doll Capital Management of Menlo Park.

Intellitactics Inc., a Reston network security monitoring firm, sold $3.5 million in Series F convertible preferred stock to five investors. The money is to be used for working capital. Investors include JMI Management Inc. of Baltimore, Lazard Technology Partners of Washington and Enterasys Networks Inc. of Rochester, N.H.

Outtask Inc., an Alexandria online business services company, sold $5.2 million in Series B preferred stock to four investors. The money is to be used for working capital.

DEBT

Allied Capital Corp., a Washington business investment company, sold $350 million in debt in a private placement to 24 institutional investors: $261 million in five-year notes with an interest rate of 6.15 percent and $89 million of seven-year notes with a rate of 6.34 percent. The money repaid $125 million of existing unsecured long-term debt and is to be used to fund new portfolio investments and for general corporate purposes. Merrill Lynch & Co. was the placement agent.

Compiled by Terence O'Hara and Bloomberg News.