What is the ruling on intermediary companies taking a fixed amount in exchange for evaluating ideas and inventions, and is it permissible to pay additional fees to view the evaluation results and benefit from other services?

It is permissible for the company to mediate between the idea owner and the producing entity for a known commission. It is also permissible for it to charge a fee for studying and evaluating the idea before marketing it. As for the monthly or annual subscription to know the evaluation result and obtain privileges, it is necessary to know these privileges and their legitimacy to ensure that it is free from gharar (excessive uncertainty) and that it is not akin to prohibited discount cards.