Danaher, the manufacturer of Craftsman tools, agreed to buy Germany's Leica Microsystems, a maker of high-powered microscopes, for about $550 million. Danaher said the net purchase price includes assumption of debt, pension liabilities and transaction costs as well as cash acquired in the deal.

Monster Government Solutions of McLean, a unit of Monster Worldwide, retained MicroStrategy of McLean and Claraview of Falls Church, to develop business intelligence capabilities for QuickHire, its Web-based hiring system for government agencies. Monster spokeswoman Renee Henrich said the initiative is "not directly related" to problems in Monster's hiring system for the Homeland Security Department, which moved to terminate the company's contract.

Halifax of Alexandria sold its secure network services business to Indus for $12.5 million in cash.

Amisys Synertech of Rockville, a provider of information management products for health plans, acquired iSpace Software Technologies of Hyberabad, India, which has 400 employees. Terms were not disclosed.

CompuDyne of Annapolis, a provider of security products, belatedly filed the report on internal controls required by the Sarbanes-Oxley Act. The company said completing the report, which was due May 2, cost it $2.8 million. The company has asked the Nasdaq Stock Market to rescind a delisting notice stemming from the late report.

CapitalSource of Chevy Chase, a commercial finance company, filed an application for an industrial bank charter with the Federal Deposit Insurance Corp. and the state of Utah.