Rational Software— Software development and application lifecycle management. Acquired in 2002.
Tivoli Software— Systems management. Acquired in 1995. Re-branded as 'Cloud & Smarter Infrastructure' (C&SI) in 2013.
WebSphere - An EJB development environment, container, and a series of pre-packaged applications, primarily for management interfaces and web commerce.
Solutions Group
Lotus Software— Groupware, collaboration and business software. Acquired in 1995.