TSMC provides the following range of services on IC production:

• the industry's largest offering of third party, silicon-proven IPs
• mask production
• 0.5 um – 90 nm technology process IC production 
• CyberShuttle^SM, the foundry industry's first and widely used prototyping program where several  customers share mask cost on a multi-project wafer
• design, test and package services are available through authorized design center PGC located in Taiwan

Official web-site: http://www.tsmc.com