Which are the large middleware software company in the world?
Number 1 in terms of revenue is IBM with its Websphere and
Number 2 is Oracle (BEA) Other players on the market are: SUN
(JBoss, probably part of Oracle soon), Tibco (used in finance
industry mostly), and Progress. This list is not complete, however
IBM and Oracle are definitely the main players with together more
than half of the total market.