If Company A is representing themselves as a General Contractor then, yes, most definitely. If Company A is simply hiring another person or company to do a particular facet of the work that they aren't equipped to do (welding comes to mind) then usually not. However, each situation must stand on its own. Your question is not really cut and dried to fit all situations.
To become a licensed contractor for the state of Oregon you must first have a 2 year degree. Secondly you must pass a state test that is required to get your license.
To work as a service, most contractors are required to be licensed in each state and may be required to take an oral and written exam. Occasionally the entity commissioning the construction of the building (the owner) chooses to act as the general contractor. In such cases, they work directly with the subcontractors and take care of the administration and organization of the various subcontractors. Contractor services including bide, negotiating a price or offers to construct, supervise, oversee, schedule, direct, alter, repair, install, improve, move, demolish, furnish labor, etc. Owner contractors takes on all liability for proper sequencing of the work, and dealing with the realities of construction.
Depending on the location, most states require the contractor to have certain types of license to do work. Each state has various different requirements for such licenses.
Yes, any sort of contractor including bath remodelers are required to be licensed by the stat of Utah. Most states have the same requirement.
All licensed contractors are required to be bonded against damage to your properrty and injuries. You should reasearch your contractor before allowing any work to begin to make sure it is current.
Contractors will be required to carry a minimum of public liability insurance when working on sites. This provides indemnity against damage to property or persons caused by the contractor, his staff or his equipment.
A company is required to carry workman's compensation insurance on subcontractors. This is regardless of the number of employees a subcontractor employs.
Subcontractors working on this project are required to have liability insurance and workers' compensation insurance.
Mortgages applicable to those type of people (Contractors) are termed as Contractor Mortgages. Guidelines and documentation required for availing a contractor mortgage is different than that of a typical mortgage. The only entity that can mortgage any property is the legal owner so the contractor must have title in order to grant a mortgage on the property.
If you're operating a motor vehicle on any public property, you must be licensed.
There are several types of contractors,and depending on your state and your field a license may or may not be required. Each state has its own laws regarding contractor licensing,so you will need too check with your state for the requirments.
All legitimate businesses have insurance to protect against injury and/or damage to property. Before engaging the service of any contractor, it is wise to make sure that the contractor is sufficiently insured.