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 provide agricultural production and agricultural support activities; include companies that operate farms, dairies, greenhouses, and other facilities for growing crops, raising animals, and harvesting fish, companies that process, store, market, and sell crops, livestock, and other related food products, companies that operate green house nursery and floriculture production, companies that provide agricultural support services, and companies that invest in agricultural activities.

Companies that design, develop, and provide contracting services for marine projects (including land reclamation and dredging, marinas, ports, harbors, artificial islands, and other marine 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 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 provide various business services to their clients (including advertising, auctions, business consulting, commercial cleaning, legal, public relations, repair and maintenance, security, translation and interpretation, staffing, survey and statistics, technical and scientific research, fairs and exhibitions, parking facility management).

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 electrical and mechanical services (including lighting, power transmission, piping, pumps, and instrumentation works) for residential and commercial buildings, industrial structures, and other engineering projects.

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

Companies that operate water treatment plants and water supply systems to promote the growth of crops, may include pumping stations, aqueducts, and distribution mains, to divert water from rivers and lakes, pump water from underground, or any other means.

Companies that specialize in performing business, consumer, environmental, and other activities for companies, households, or individuals in exchange for fees; and associations that promote the interests of their members including business and non-business associations or groups.

Companies that provide support services and/or other products used in crop, animal, or forestry activities. The companies' activities include management services, farming equipment sales and leasing, shipping services, irrigation services, and other agricultural support services.

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.

Companies that design and plan the developments of land areas. The companies' activities include studying land characteristics and location of buildings and structures, as well as providing landscape care and maintenance services (such as installation of plants and other structures).