I am researching Theater Under the Stars in Houston for my Business Strategy capstone class project.
Answer
It's often hard to find information about small private companies, because they are not required to report their financial information the way to publicly traded companies are required to do it, but I can point to a few things.
The sources I will mention can be found at http://library.uhd.edu/business.
You can research the theatre and entertainment business in Mergent Intellect which is found on the "company and industry resources" tab
For published sources about Theatre Under the Stars, you may need to check news reports. See the "Business News" tab at the top of our business page. Try particularly Houston Business Journal, Houston Chronicle, and NexisUni. For the first two database, simply search for: Theatre Under the Stars. In NexisUni, try this search in the "Search the News" box: "theatre under the stars" w/10 houston.