Steltor was a Montreal (Canada) based collaborative software (calendar) company. It was founded in 1988 by André Courtemanche under the name DEXOTEK, later changed name to Corporate Software and Technologies before settling on the name Steltor and its red chameleon logo. It was acquired by Oracle Corporation in 2002 and its technology has since been incorporated into Oracle Collaboration Suite.
Before their acquisition, they marketed their software directly under the brand CorporateTime Calendar. They also produced the groupware calendaring product used in older (3.x, 4.x) versions of Netscape Navigator through an OEM deal with Netscape Corporation and Hewlett-Packard-branded HP OpenTime around the same time.