Question for claim adjusters and insurance agents?

I am looking for any adjusters or agents who can tell me if a plumbing fixture company has a liability insurance carrier. We have a product defect claim against Jameco International based in NJ. They are not cooperative at all. So I am looking ANY information about them from insurance professionals who have dealt with them. I'm looking mostly for the insurance carrier info, but will take any info regarding how any claims were settled with them. Also, would like to know if adjusters have had files where they had to sue Jameco and if so what state was the suit filed in. Thank you for any help that you can provide it is much appreciated.