Time to time I've got invited to different organizations and, summarizing the information, I can define the next group of benefits they supply - help to create a successful pitch deck, investigate and assess your idea, etc - help to find an angel investor - some of the supply some amount of money for winners At the same time, these programs are paid and they usually request from 1 to 10% of your company. Do you have experience in cooperation with such organizations? Are they worth money and time?