Mainframe Software Statistics

Largest mainframe Vendors

Top 20 mainframe Vendors (out of a total of 288 active mainframe vendors), ranked by the number of mainframe software products currently marketed

	Vendor	Active	Supported	Inactive	Total
1	IBM	281	94	252	627
2	CA Technologies	198	34	64	296
3	BMC	96	17	57	170
4	Rocket Software	76	10	10	96
5	ASG Software Solutions	64	19	3	86
6	MacKinney Systems	46	0	5	51
7	Software AG	44	5	2	51
8	UNICOM Systems	38	0	3	41
9	SDS	30	0	1	31
10	GSF Software	30	0	0	30
11	CSI International	30	1	0	31
12	Innovation Data Processing	24	1	0	25
13	Relational Architects International	20	0	0	20
14	Levi, Ray & Shoup	20	2	0	22
15	Software Engineering of America	20	0	1	21
16	ASPG	18	0	0	18
17	CDB Software	16	0	0	16
18	Syncsort	15	0	0	15
19	Beta Systems	15	8	5	28
20	Compuware	14	1	1	16