McCallum-Turner has worked with many clients in the energy and industrial arenas:

• Advanced Terra Testing, Inc

• AlphaTRAC

• Arizona Public Service

• Duke Energy

• Electric Power Research Institute

• Entergy Corporation

• Entergy Nuclear

• Exelon Corporation

• Enercon Services, Inc.

• Florida Power & Light

• Labat Environmental/US State Department

• Battelle Memorial Institute/Nuclear Regulatory Commission

• NuStart Energy

• Pacific Gas & Electric

• Progress Energy

• South Carolina Electric & Gas

• Southern California Edison