Omaha, Neb.-based engineering consulting firm HDR has acquired Boise, Idaho-based Doherty & Associates, which will now do business as HDR/Doherty & Associates.

Redmond, Wash.-based Genie Industries, a boom lift manufacturer, has acquired Waco, Texas-based Phoenix Equipment Co.

San Mateo, Calif.-based software company SpringCM has acquired Sterling, Va.-based software company Synchris.

Minneapolis-based Tennant Co., a manufacturer of environmental cleaning products, has acquired Sharon Hill, Pa.-based Applied Sweepers.

White Plains, N.Y.-based environmental consulting firm Malcolm Pirnie has acquired Lakewood, Colo.-based Destiny Resources, which specializes in geographic information systems consulting.

Huntsville, Ala.-based water technology product manufacturer ADS has acquired locally based research company Condor Solutions.

Wilsonville, Ore.-based imaging products manufacturer Flir Systems has acquired Waltham, Mass.-based Extech Data Systems.