First Quarter Earnings - March 31, 2005

PRESS RELEASE June 23, 2005 ACMAT Corporation For confirmation call: 233 Main Street Henry W. Nozko, Jr., President P.O. Box 2350 (860) 229-9000 New Britain, CT 06050-2350 ACMAT REPORTS FIRST QUARTER EARNINGS Three Months Ended March 31, 2005 2004 Revenues $5,953,197 6,642,152 Net Earnings $ 772,056 519,324 Basic Earnings Per Share $ .34 .23 Diluted Earnings Per Share $ .33 .22 ACMAT Corporation reported net earnings of $772,056 or basic earnings per share of $.34 for the quarter ended March 31, 2005, compared with $519,324 or basic earnings per share of $.23 in 2004. The increase in net earnings is primarily due to an increase in earned premiums and investment income. For the quarter ended March 31, 2005, the Company recorded revenues of $5,953,197 compared with $6,642,152 for the same period in 2004. The decrease in revenues resulted from a decrease in contract revenues offset in part by an increase in investment income. ACMAT provides design and construction services to commercial, industrial, corporate and institutional customers. ACMAT focuses on renovating interiors of existing facilities, as well as new building construction. ACMAT'S Insurance Group includes ACSTAR Insurance Company and United Coastal Insurance Company. ACSTAR, licensed nationwide, provides surety bonds for prime contractors, specialty trade, environmental remediation and asbestos abatement contractors and miscellaneous surety. United Coastal, approved nationwide, provides specialty general, environmental and professional liability insurance primarily to general contractors, specialty trade and environmental contractors, property owners, as well as architects, consultants and engineers. United Coastal also offers products liability.