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
1IBM28195251627
2CA Technologies1983464296
3BMC951857170
4Rocket Software76101096
5ASG Software Solutions6419386
6MacKinney Systems460551
7Software AG445251
8UNICOM Systems380341
9CSI International301031
10SDS300131
11GSF Software300030
12Innovation Data Processing241025
13Relational Architects International200020
14Levi, Ray & Shoup202022
15Software Engineering of America200121
16ASPG180018
17CDB Software160016
18Beta Systems158528
19Syncsort150015
20Compuware141116