I don't think the size of the company has any bearing on the cost. They do offer a variety of outlets which will affect the cost depending on how many services are requested. You may be correct as to the minimum with a sliding scale depending on what is requested.
News Wire Services, such as: Dow Jones, Reuters, Associated Press, Bloomberg
National Newspapers, such as: The Wall Street Journal, The New York Times, USA Today
Business Journals, Trade Media, Industry Analysts, Local Media, Television & Radio Programs
Stock Markets & Regulatory Organizations, such as: NYSE, NASDAQ
Individual Reporters