Mainframe Software Statistics

Largest mainframe Vendors

Top 20 mainframe Vendors (out of a total of 287 active mainframe vendors), ranked by the number of mainframe software products currently marketed

Vendor Active Supported Inactive Total
1IBM28295253630
2CA Technologies1783565278
3BMC961857171
4Rocket Software76101096
5ASG Software Solutions6419386
6MacKinney Systems491555
7Software AG445251
8UNICOM Systems380341
9SDS300131
10CSI International301031
11GSF Software300030
12Innovation Data Processing231024
13Software Engineering of America200121
14Levi, Ray & Shoup202022
15Relational Architects International200020
16ASPG180018
17Compuware171119
18Micro Focus162523
19CDB Software160016
2021st Century Software150015