Start with the Read Me First materials. Further research the competitors through their company websites, company profile databases listed below and with a final step of article searching.
Use the two above databases to start your list and add names through internet searches and web shopping. Use the below databases to look up information about specific companies. Many of the companies in your space may be private companies, and the below databases have private company information. Add to your research with some internet shopping (secret shopping) and the final step is to use the resources in the Article Databases area to fully investigate your competitors.