Companies that design, manufacture, market, distribute, or trade in equipment used to provide long-distance, local, and corporate access to voice, data, text, sound, and video communication services, which includes the software integral to the equipment.

Companies that design, develop, and provide civil contracting services for industrial structures (plants, refineries, and complexes) for the oil and gas, power and utilities, and petrochemical sectors.

Companies that manufacture, market, and distribute basic materials, industrial products, chemicals, as well as machinery and equipment.

Companies that provide consulting services related to planning, design, architecture, and engineering services required to develop, remodel, or maintain and repair residential and commercial buildings, industrial structures, and other engineering projects.

Companies that provide construction services including architectural and engineering services contractors, civil engineering contractors, integrated contractors, manufactured buildings suppliers, reclamation and dredging contractors, specialty contracting traders, and providers of other construction services.

Companies that design, manufacture, market, and/or distribute oil and gas field machinery and equipment (including oil and gas field drilling machinery and equipment, field production machinery and equipment, field derricks, water well drilling machinery, and other oil and gas field equipment).

Company that provide engineering consulting services including providing advice, preparing of feasibility studies, preparing preliminary and final plans and designs, providing technical services during the construction or installation phase, inspecting and evaluating engineering projects, and related services.

Companies that provide construction services including general and specialty construction contracting, development, design, engineering, and other services in addition to companies that invest in the construction sector

Companies that design, manufacture, market, and/or distribute security systems, such as robbery and fire alarms and locking devices.

Companies that provide transmission of and access to voice, data, text, sound, and video communication services. The companies operate and manage wired and wireless transmission facilities and networks; design, manufacture, market, distribute, and resell equipment used for such communication; in addition to companies that provide related support services such as systems installation, repair, maintenance, and other services.

Companies that provide transmission of and access to voice, data, text, sound, and video communication services. The industry includes companies that operate and maintain telephone, mobile, messaging, internet and other networks in addition to resellers, infrastructure developers, telecommunications investment companies, and other telecommunications service providers.

Companies that restore machinery, equipment, and other products to working order; includes offering routine checks and refining services to ensure that the products work efficiently and prevent unnecessary repairs.

Companies that design, develop, and provide civil contracting services for infrastructure projects (including roads, bridges, sewage and drainage, tunnels, highways, damns, water drilling works).

Companies that design, develop, and provide civil contracting services for residential and commercial buildings and other general structures.

Companies that design, build, maintain, manage, and operate telecommunications network infrastructure, including fiber-optic cabling, wireless communications towers, private networks, and in-building networks.

Companies that design, manufacture, assemble, market, distribute, and/or lease machinery and equipment (lighting equipment, agriculture machinery, commercial hardware, fastener equipment, construction machinery, electrical machinery, food service and food retail machinery, industrial automation and industrial control equipment, pumps, valves, seals, fluid control equipment, as well as safety and security equipment).

Companies that import and/or distribute telecommunications equipment.

Companies that design, develop, and provide civil contracting services (constructing the main concrete and/or steel structure) for residential and commercial buildings, industrial structures, and other engineering projects.