Thailand : Business Directories gives financial, corporate, business, stock value information about companies (not all though) listed on the Stock Exchange of Thailand.

 Business Online PCL
Established in 1995, BOL has been cooperating with Department of Business Development, Ministry of Commerce to provide basic information on more than 720,000 companies registered in Thailand.
Pattaya Business Directory with over 5,000 companies listed with locations on Maps. Every company in the directory has been manually reviewed by our editorial team to ensure that they are a valid Pattaya business, and that the information they have provided is of the highest standard. Also telephone numbers are listed.

 Hua Hin Business Directory
HHBD is Hua Hin's first online business directory offering FREE business listings, company information and useful telephone numbers for the Hua Hin area. It offers a good alternative to the Hua Hin Yellow Pages which unfortunately for westerners is only available in Thai language.

 Bangkok Companies - Ultimate Database Contact
Bangkok Companies have compiled the most up-to-date and comprehensive database of Thai and foreign companies in Bangkok and along the Eastern Seaboard in Thailand. Websearch
Teleinfo Media Co. Ltd. is the official publisher and distributor of Thailand telephone directories, both White Pages and Yellow Pages. Yellow Pages Online Directory.

 Thai Institute of Directors Association
Company Directors play an extremely important role in good corporate governance (CG). Therefore, the Thai Institute of Directors Association was founded to help support and aspire directors to carry out their duties more effectively and in line with international best practices. – Phuket Thailand directory designed to help you find the companies, products, services, and information you need to make the right business decisions. Please search or browse through our comprehensive business listing in Phuket business directory. - Thai Business Directory
ThaiBD integrates all the best of Thailand's Internet businesses and services into an easy–to–use, searchable database with a user–friendly and stylish interface.

 Business Online - DBThai
DBThai provides searching from the most complete and update registry and financial information of 800,000 businesses in Thailand based on document officially submitted to the Ministry of Commerce. Need to register and log in.
Thai companies' websites categorized by product. Trade and business related information. English sites only listed. Quite extensive list of Thai companies and their websites.