What is the ruling on working for a company that provides services to building insurance companies, where the work involves surveying building damages and estimating the due compensations, knowing that the salary is paid by the company and not by the insurance company, in addition to a percentage for each survey?

It is impermissible to work for or cooperate with commercial insurance companies because their operations are based on sin, gharar (definition) (excessive uncertainty), and gambling. Therefore, it is impermissible to work in assessing damages or determining entitlements, even if the salary comes from another source, because what matters is the work itself, not the salary, unless there is a necessity or a recognized need.