The US Federal Government creates a NAICS Code for each industry to help with company analysis and comparison. Sometimes the codes use odd descriptors (government, what can you say!). Try synonyms as search terms to locate your industry.
For example, the NAICS code for "chicken production (except egg laying)" is 112320.
Get a sense for the total market by researching industry reports. When locating industry reports, pay attention to the 1) publication date, and 2) geography (global, US, India, etc.).
Print Library Resources
Standard & Poor's Research Insight - Access in Perdue labs only
"A published ranking, based on detailed financial analysis of corporate/organizational financial history, specifically as it relates to the ability to meet debt obligations. The highest rating is usually AAA, and the lowest is D."
To run a Company Highlights Report which will include S&P Credit Ratings: