CII is a consortium of owner, engineering-contractor, and supplier firms from both the public and private arenas. These organizations have joined together to enhance the business effectiveness and sustainability of the capital facility life cycle through research, related initiatives, and industry alliances.

The Building Trades Association (BTA) comprises companies involved in all phases of the building and construction industries. BTA was formed to provide services for its members, saving them valuable time and money.

The building trades alliance is a team of trade unions that is dedicated to fighting for higher pay, more job opportunities, and a more secure future for America's builders.

Excavation contractors dig, move and grade the earth using heavy machinery for various construction projects. This directory lists excavation contractors that are located in the USA. Each excavation contractor listing includes contact information and a website link.

A roofer, or roofing contractor, is a tradesperson who specializes in roof construction. Roofers replace, repair, and install the roofs of buildings, using various materials, including shingles, bitumen, and metal. This directory lists selected roofing contractors that are located throughout the USA.

A contractor and a foreman discuss a building project, surrounded by construction-related themes.

A plumber is a tradesperson who installs and repairs the pipes and fittings of water supply, sanitation, or heating systems. This directory lists plumbing contractors and plumbers who are located in the USA.

An electrician is a person who installs, operates, maintains, or repairs electric devices or electrical wiring. This directory lists electrical contractors and electricians who are located in the USA.

Elevator installers and repairers assemble, install, test, and maintain elevators, escalators, dumbwaiters, moving walkways, stage lifts, and wheelchair lifts. This directory lists elevator contractors who are located throughout the USA. Each listing includes contact information and a website link.

A drywall contractor lays out and installs gypsum wall board and related assemblies including nonstructural metal framing members. He or she also performs taping and texturing operations including application of compounds that adhere to wall board to produce a continuous smooth or textured surface. This directory lists drywall installers and contractors that are located in the USA.

Brick masons and block masons (also called bricklayers) build and repair walls, floors, partitions, fireplaces, and chimneys. This bricklayer directory lists bricklayers that are located in the United States of America.

Carpenters construct, erect, install, and repair structures and fixtures of wood, plywood, and wallboard, using appropriate hand tools and power tools. This carpenter directory lists carpenters and carpentry service providers throughout the USA.