There's no web site, you have to contact each insurance company, but you'll LIKELY have to provide them with a performance bond!!! As a new construction company, you'll have to personally guarantee it. And likely, you can't afford it.

Becoming a preferred contractor for an insurance company can be tricky business. I would suggest the following.

Network with local agents (not claims depts) in your area first. The best source of insurance jobs (regardless of whether you are insurance company approved or not) is from the local agents. When most people have a claim they have no clue what to do next or who to have fix the damages. They normally turn to their agent for guidance. Network with the agents dirst, do good work then they can be used as a reference when you network/market to the insurance companies themselves.

Join every construction and insurance association that you can. Search the net for associations in your local area and start there. This is where the adjusters and claim managers can be met and networked. Meeting face-to-face will be very important as claims people are a skeptical group by nature and they will want a face to put with the name.

Try joining websites such as claimsmentor, claimspages, claims portal, claimspages, claimsrep etc.

Be insured, licensed bonded or whatever else your state requires. No insurance is going to let an uninsured contractor touch any of their claims. This is very important.

Good Luck.