| Airy's Inc. Specializes in storm sewer, sanitary sewer, and water main installation and repair. http://www.airys.com/ |
| Kimmins Corporation Provides infrastructure, earth moving, demolition, and utility construction. http://www.kimmins.com/ |
| McAninch Corporation Specializing in earthmoving and underground utilities. http://www.mcaninchcorp.com/ |
| National Engineering & Contracting Co. Heavy/highway construction company specializing in bridges, treatment plants, piling and caissons. http://www.natlengr.com/ |
| Quanta Services, Inc. Parent company to a number of infrastructure contractors in North America. http://www.quantaservices.com/ |
| Spiderplow Providing the installation, plowing, and laying of cables and pipes. http://www.spiderplowinternational.com/ |
| Suffolk Water Connections, Inc. Underground utility construction company specializing in directional drilling and installing underground utilities, including water lines, conduit, and telecommunication lines. http://www.swc-inc.com/ |