| Employer | State | City | |
| G3 HVAC | California | Signal Hill | View Profile |
| George Brazil Plumbing, Heating, Air Electrical Services | Arizona | Phoenix | View Profile |
| Gillece Plumbing & Heating Inc. | Pennsylvania | Pittsburgh | View Profile |
| Goodman Manufacturing Co. L.P. | Texas | Houston | View Profile |
| Graybar Electric, Inc. | Missouri | St Louis | View Profile |
| Greene & Associates | Georgia | Macon | View Profile |
| Gundlach S/M Works, Inc. | Ohio | Sandusky | View Profile |