English to Chinese Social Sciences Social Science, Sociology, Ethics, etc.

How long has the company been operating pageants? Who are the directors? Usually pageants are operated by for-profit organizations that solicit participants by mail or print advertising, or by broadcast media, to compete for recognition and prizes from the promoter.
What is the total cost of pageant participation for both the entrant and the chaperone? Oftentimes, family or business sponsors are asked to pay a sponsorship fee, which can vary, to the pageant promoter to cover hotel rental fees, awards, administrative costs, salary for company personnel and company profits.
这是选美大赛活动中的哪一方？“发起方”？“承办方”？还是？？？