The agencies supporting the construction industry include but are not limited to the following:

a)     Construction business promoters like government bodies, public and private enterprises for real estate and industrial development, and other similar agencies.

b)    Construction management consultant firms.

c)     Architect-engineering associates.

d)    Construction manpower recruitment and training agencies.

e)     Construction materials developing, manufacturing, stocking, transportation and trading firms.

f)      Construction plant and machinery manufacturing, distributing, and repair and maintenance organizations.

g)     Banking and finance institutions.

h)    Risk insurance and legal services companies.

i)       Construction quality assurance, and research and development establishment.

j)       Contractors and contracting firms.

There are five main agencies actively associated with the execution of major works. These are: business promoters, construction management consultants, architects-engineering associates, input suppliers and the contractors.

Business promoter

Business promoter also called the client, he is the potential owner of the construction facility. He sponsors the construction works and ultimately utilizes them. A client can be a government body, a public or private enterprises, or some private individual. It is he who sponsors the works, finances their construction, and utilizes the facility constructed. It is on his demand that the market forces react. Thus, in reality, it is the client who is the promoter of the construction business. The construction work can be executed through the client’s own organization, that is, departmentally, or through contractors, or through a combination of both.

Construction management consultants

The emerging trend these days among the clients, is to hire the construction management consultants for rendering certain services on contract basis for the entire life of the project. The nature of tasks assigned to this group by the clients vary, but it generally includes the following:

a)     Project feasibility, including cost estimates.

b)    Site survey and soil investigations.

c)     Scrutiny and coordination of designs and drawing work.

d)    Estimating, initial planning, and budgeting costs.

e)     Processing prequalification of construction agencies, tendering, and awarding contracts to the successful bidders.

f)      Designing project organizations for executing works and developing standard operating procedures and systems.

g)     Developing detailed construction plans, project schedules and performance measuring standards.

h)    Supervising works, including administration of contracts and controlling of project time, cost and quality objectives.

Architech-engineering associates

An architect is an individual who designs the buildings, landscapes and other artistic features. The engineer associated with architects develop structural, electrical, mechanical and other specialist system and designs. Architect-engineering associates are the firms employing both architects as well as engineers to provide complete design services under one roof. Some of these firms also provide construction management services.
The architect-engineering firms, when engaged, are frequently required to coordinate with construction management consultant/manager, who knows the project needs, and to scrutinize designs and drawings from the construction point of view. Construction consultants, with all their construction expertise, can render valuable guidance and advice to the design team, especially when the latter has to finally approach them for approval.

Input suppliers

Construction process needs resources input. Construction inputs exist in the form of men, materials, machinery and money. The workforce connected with construction includes architects, engineers, managers, technical and non-technical staff, highly skilled operators, and skilled and unskilled manpower. Construction activity requires a wide variety of materials, which from a substantial part of the entire construction cost. Induction of construction plant and machinery has revolutionized construction practices by adding the speed factor and reducing the need for difficult-to-manage manpower.
Money is at the core of all business activities and construction being a capital intensive business, generally also operates under money constraints. Construction input resources are converted into construction facilities by using the standard construction practices and management methodologies. This process of input procurement, conversion and management of resources covers a wide spectrum of the construction business activity.

Contractors

Construction contractors form the backbone of the construction business as they execute most of the construction works. In the competitive construction business, which requires special resources for different types of construction work, the contractors generally tend to specialize in a particular area of construction. From this functional angle, the contractors can be classified into the following categories:

a)     General contractors.

b)    Building contractors.

c)   Specialist contractors for various types of heavy infrastructure construction work such as highways, bridges, dams, marine works etc.

d)    Specialist (mostly turnkey) contractors for various categories of industrial works like power plants, process industries, and so on.

e)     Specialist utility services contractors. These include electrical contractors, water supply and sewage disposal contractors, HVAC (heating, ventilation and air-conditioning) contractors, and so on.

Moreover depending upon their resource capability to handle construction work and their financial position and past performance, the contractors are further categorized by various government bodies into workload capability divisions (like S, A, B and C class) for the purposes of awarding contracts.