Cleaning Services Group, Inc. - Building maintenance including janitorial, floor care, window cleaning, grounds and parking lot maintenance, emergency restoration, construction clean-up and painting.
D and D Maintenance and Millwright Service - Food, dairy, and beverage maintenance company providing installations of sanitary process piping, ammonia refrigeration systems, and equipment.
DPG plus - Scotland-based HVAC and commercial building maintenance and repair.
EMCOR Group, Inc. - Designs, integrates, installs, tests, operates and maintains complex mechanical and electrical systems.(Nasdaq: EMCG)
