Started as a provider of Mainframe financial applications. Later had products which ran on the Mainframes under CICS, AS/400, and on various Unix platforms.
In 1991 had revenues of ~$47M
In 1992 had revenues of ~62M
In 1994 had revenues of ~$69M.
In 2002, Walker changed it's name to Elevon, after it acquired a UK company with a Unix based ERP solution, with the same name.
In 2002 had revenues of ~$40M, which were flat, year over year from 2001
In 2003 Sold out to SSA Global for ~$20M