Defense

Buyer: General Dynamics Corp., Falls Church

Seller: TriPoint Global Communications Inc., Newton, N.C.

Value: Undisclosed

Closing: Sept. 30

TriPoint is a privately held provider of ground-based satellite and wireless communication equipment and integration services for video, voice and data applications.

Buyer: Dimensions International Inc., Alexandria

Seller: Sentel Corp., Alexandria

Value: Undisclosed

Closing: June 16

Dimensions International is a high-technology engineering and integration company. Sentel is an engineering services company. Both private companies are primarily government and defense contractors.

Buyer: Essex Corp., Columbia

Seller: Performance Group Inc., Fredericksburg, Va.

Value: Undisclosed

Closing: Pending

Essex makes advanced signal and image-processing gear, mostly for use in defense and intelligence applications. Performance Group is a private company that provides services in geographic information systems, imagery processing and analysis, spatial data development, and environmental consulting.

Real Estate

Buyer: Cardinal Financial Corp., McLean

Seller: George Mason Mortgage LLC, Fairfax

Value: $17 million

Closing: Aug. 8

Cardinal is parent company of Cardinal Bank. George Mason Mortgage is owned by United Bank of Northern Virginia, a unit of United Bankshares Inc. of West Virginia. George Mason originates and buys residential mortgages through nine branches in the Washington region.

Buyer: Host Marriott Corp., Bethesda

Seller: Fairmont Hotels & Resorts, Toronto

Value: $355 million

Closing: Aug. 31

The hotel real estate investment trust bought the Fairmont Kea Lani Maui hotel, at the Wailea Resort in Hawaii.

Technology

Buyer: CoStar Group Inc., Bethesda

Seller: Scottish Property Network, Paisley, Scotland

Value: $1.3 million

Closing: June 16

CoStar Group, a provider of information services to commercial real estate professionals in the United States and the United Kingdom, said its U.K. subsidiary, Property Intelligence Ltd., bought a provider of online commercial property information in Scotland.

Buyer: Hanley-Wood LLC, Washington

Seller: Meyers Group, Costa Mesa, Calif.

Value: Undisclosed

Closing: June 15

Hanley Wood is a media company serving housing and construction. Meyers Group provides real estate data and consulting to the housing industry. Both firms are private.

Buyer: MobilePro Corp., Bethesda

Seller: Web One Inc., Lenexa, Kan.

Value: Undisclosed

Closing: July 31

MobilePro is a wireless technology and broadband Internet services firm with operations in Texas and Louisiana. Web One is an Internet service provider.

Manufacturing

Buyer: W.R. Grace & Co., Columbia

Seller: Alltech International Holdings Inc., Deerfield, Ill.

Value: Undisclosed

Closing: Pending

W.R. Grace, operating under Chapter 11 bankruptcy protection, is a supplier of building materials and specialty chemicals and catalysts. It filed a motion in U.S. Bankruptcy Court seeking authorization to acquire Alltech, a private manufacturer and supplier of chromatography products.

Compiled from Bloomberg News and staff reports.

TriPoint Global Communications makes satellite, microwave and other kinds of antennas. The company also helped build the Southern Astrophysical Research telescope in Chile.