Mainframe Software Statistics

Largest z/VM Vendors

Top 20 z/VM Vendors (out of a total of 78 active z/VM vendors), ranked by the number of z/VM software products currently marketed

Vendor Active Supported Inactive Total
1IBM391558112
2CA Technologies3852164
3Rocket Software342238
4Software AG201021
5TPS Systems110011
6Semantic Designs8008
7Velocity Software7007
8SDS6006
9Attachmate6017
10Software Product Research5005
11Serengeti Systems4004
12MPI Tech4004
13Esker4004
14Redvers Consulting4004
15Aviva Solutions4004
16Select Business Solutions4004
17Barr Systems36110
18Turbosoft3003
19Dignus3003
20CLEO Communications3205