Construction is big business, often quite literally. The construction industry is all about growing your business. Hiring a company that is properly regulated though possibly more expensive can be the difference between a new building that is perfect and ready to use and a muddy hole in the ground that is still waiting for work to be done.
Construction companies are very heavily regulated because there is so much that can go wrong with the building industry. From the workers at ground level to the person that buys the building from you 10 years down the line everyone needs to know that safety regulations have been followed and that this building will work for the intended function and location.
You can read more here if you are looking for construction companies in Vancouver.
Each state has its own laws regarding construction companies, though there is no central federal level governing body for construction companies usually their regulation is dealt with at a local city and county level. It is best to contact local authorities to ask about regulating bodies in your state before hiring anyone so that you can double-check their licensing before work begins.
There are many people involved in construction, though not all are part of the construction company. Architects for example have their own governing bodies and separate insurance from that of the construction companies. Though this will be a different body per area their aim is the same so considering the OSH will be our example.
The Occupational Safety and Health office is in charge of making sure that everyone stays safe. They regulate everything from material handling, to the required clothing that construction crews must wear so that there will be as few accidents as possible. OSH also has to approve of the building plans if it is a commercial building so that once the construction has finished the new owners will also be up to their codes for their employee safety as well.