- Advice IC Engineering Services
 - Woodbine - Offers design, schematic entry, PCB layout, prototype assembly, and turn-key manufacturing. - Anderson Materials Evaluation
- Baltimore - Offers analytical services for the characterization of applied materials, including metals, polymers, inorganics, semiconductors, composites and more.
- Consign AG
- Millersville - Designs and installs engineered control systems for roller coasters.
- Coordinated Power Engineering
- Millersville - Specializes in power distribution engineering including short-circuit and coordination studies, power quality analysis, and power factor studies.
- Henry Adams, Inc.
- Baltimore - Mechanical and electrical engineering services.
- MET Electrical Testing Company, Inc.
- Columbia - Provides electrical testing of circuit breakers, substations, switchgear, transformers, and generators and performs power quality surveys, coordination and short circuit studies.
- MET Laboratories, Inc.
- Baltimore - Product testing and certification laboratory.
- Whitman, Requardt & Associates, LLP
- Baltimore - Engineers and planners for construction projects, with offices in Richmond and Fairfax, VA, York, PA, and Martinsburg, WV.
|