Any company has its specific specialties, roles, and areas of expertise and so we can distinguish different companies types according to what kind of work companies do, for instance, it might be design, planning, build, operating, maintaining, paper works with its compliance, and many more other works connected to construction projects. Depending on the type of work they perform and the type of specialization, construction companies can be distinct.

Architecture Firms

Architecture firms are companies consisting of highly educated and experienced in the art of building design professionals that must be legally licensed - architects, who are planning and designing buildings that the other construction companies will precisely stick to.

Typically, architect firms are needed for projects that are large enough and architects are crucial players in the construction project since they do much "smart" works, have much responsibility, for instance, the safety of their building's occupants, and they eventually approve contractors for building.

They’re commonly hired by the project owner or real estate developer but also might act as the general contractor on the project with all the functions respectively.

Construction Managers & Consulting Agencies

Construction management (CM) agencies are the firms that represent the owner's interest and provides control over each stage and each aspect of the project in favor of the owner.

CM agencies deal with all parties to deliver the project on time, with no exceeding the budget. They manage accounting, staffing project managers, hiring one or several subcontractors, and even general contractors.

General Contractors

A general contractor is also known as a prime contractor or main contractor, cause holding a prime contract with the owner (it might be also the developer or the construction manager), usually for large projects and undertakes the entire construction works of a project: design, project coordination, construction, operating, maintaining, paper works. 

A general contractor is tasked with hiring specialized subcontractors to perform all or portions of the construction work. A general contractor has full responsibility for overseeing the quality of all work performed by any workers and subcontractors as well as providing all of the material, labor, equipment such as vehicles and tools, and services necessary for the construction of the project and also do payments distributing.

Restoration & Remediation Contractors

Restoration or remediation contractors are the firms that come to help you to struggle with the consequences of significant catastrophic events like a natural disaster, fire, flood, mold, etc. that severely damage businesses or homes.

The major things that companies do are cleaning up of the property and ensuring it’s safe enough so the facilities are ready to move on to the repairing process that some companies this type can additionally do (having a mandatory license for home improvement works) or by involving renovation contractors to make repair happen.

A restoration company communicates directly with an insurance company to see what is covered by a policy to minimize an extra bill from pocket costs suffered person.

Renovation Contractors

A renovation contractor is a building professional firm that participates in the planning, management, and development that is tied up to the building renovation or structures or just at least oversees a renovation project. Things to be undertaken: renovation plan, acquiring permits and licenses from the relevant authorities, budgeting, handling emergencies and etc.

Company mandate to have a license for home improvement works to provide its services.

Specialty Contractors

The key point to be a specialty contractor is to have narrow specialization and be responsible for the completion of one specific aspect of a construction project. Instead of overseeing the progress of the project specialty contractors only oversee the development and completion of their specialized tasks.

There are few examples of specialty contractors, including but not limited to: 

Engineering Firms

Overall the engineering firm's role is to ensure that the designs are safe, comply with code and any particular environmental or site considerations as well as construction best practices. The company is tasked with the oversight and management of a large-scale, complex construction project. Typically, these projects involve both buildings and the infrastructure that supports them.

Construction engineering firms don’t typically hire any subcontractors but they work alongside other parties and may manage building crews, collaborate with other engineers and project stakeholders, and influence all aspects of the building process, to ensure the project is making time.

Usually, construction engineering companies come in where we have large-scale construction projects and is positioned as problem solvers. They are limited by the two subtypes:

Land Developers & Real Estate Developers & Homebuilders

Both companies are countable of the housing business, but the difference is notable. Land developer acquires raw land, obtains the necessary permits, creates building lots, and puts in the sewers, the water, and electric lines, the streets and curbs. That's when the builder comes in and designs, builds, markets sells and arranges financing for properties. 

The homebuilder then oversees the entire construction process: laying the foundation; erecting the framing, roofing, and siding; nailing in the floor; building the walls, and installing in the exterior trim. And, the builder oversees the installation of plumbing, heating, and electrical work.

A home builder also plays the role of inspector. Homebuilder company conducts business with materials suppliers and trade contractors. The quality of the labor and materials will determine the quality of the home.

A home builder might also be a developer. In fact, many behave this way but nowadays most of the significant housing companies buy finished lots and pads cause intend to avoid spending too much time and resources solving complex jurisdiction procedures and permits.

What vital processes any home builder must handle:

  • Bidding Process: For a detailed and accurate budget, your builder must ensure that proposals from subcontractors and suppliers are capitally examined.
  • Pre-Construction Process: Pre-construction paperwork is a crucial thing to have a smooth construction start: they need a defined system and checklist to make sure permitting and approvals are handled efficiently and nothing out of the eye.
  • Design Selections Coordination: There are many small decisions for you to make as your house is built. They need to have a way to help you make design selections in time so the schedule is by the plan.
  • Construction: The project schedule must be systematically monitored to ensure the effective scheduling of subcontractors and to prevent miscommunications and delays.

Landscaping Firms

A landscaping company is a construction business that operates to design, construct, install and maintain outdoor areas and facilities that are lawns, trees, water features, wildlife areas, golf holes, yards, shrubs, gardens, patios, and related grounds.

There are firms called landscape architecture companies that are more specialized in design and that understand land-management techniques and work with complex software to cope with effective solutions of design environments that bound people to the natural world.

Real Estate Agencies

Real estate firms generally manage assets like land and finished construction buildings or housing. It includes such operations as buying, selling, or renting real estate operations, both commercial or residential.

Building Suppliers

A building supplier company is a construction firm that has no conspicuous megastar role on the construction job site but is still undertaking an important role somewhere in the background of the construction processes as a provider of necessary materials and equipment on time and budget. Each contractor or subcontractor construction industry usually has its own suppliers list he trust on. 

Since producing process of building materials and equipment are complex enough so there often might be a supply chain between different suppliers and construction manufacturers instead of having direct supplies.