The companies did not give financial details of the merger. Both are privately held, although ULT is backed by Internet venture firm CMGI Inc. (Nasdaq: CMGI).
The two companies' client bases, when combined, account for more than two million seats at over 700 colleges and universities in 36 countries.
The WebCT product is designed to help educators develop courses online. ULT plans to package it with its technology, which is aimed more at students.
"We're ultimately building an electronic learning hub that will provide educational institutions with a resource where they can go for content, community and a place to make purchases," said Carol Vallone, president and CEO ULT.
WebCT will become ULT Canada, and will hire additional staff at its Vancouver office.