MADISON, Wis. (AP) -- Three companies founded to bring to market groundbreaking University of Wisconsin-Madison stem cell research are merging into one.
Cellular Dynamics International says it is merging with sister companies Stem Cell Products Inc. and iPS Cells Inc.
Star UW-Madison stem cell researcher James Thomson had a role in founding all three companies.
Company officials say the new company will carry CDI's name and employs about 50 workers.
They say the merger positions the company to become a leader in stem cell research by having putting the companies' intellectual property and research and production capabilities under one management team.