Mainframe Software Statistics

Largest mainframe Vendors

Top 20 mainframe Vendors (out of a total of 278 active mainframe vendors), ranked by the number of mainframe software products currently marketed

	Vendor	Active	Supported	Inactive	Total
1	IBM	197	49	401	647
2	Rocket Software	137	38	12	187
3	Broadcom	93	130	17	240
4	BMC	79	52	64	195
5	MacKinney Systems	49	1	5	55
6	Software AG	44	5	2	51
7	UNICOM Systems	38	0	3	41
8	GSF Software	30	0	0	30
9	SDS	30	0	1	31
10	CSI International	30	1	1	32
11	21st Century Software	25	0	0	25
12	Software Engineering of America	20	0	1	21
13	Levi, Ray & Shoup	20	2	0	22
14	ASPG	18	0	0	18
15	CDB Software	16	0	0	16
16	Vanguard	15	2	3	20
17	Tone Software	14	0	0	14
18	Macro 4	14	6	0	20
19	TPS Systems	13	1	0	14
20	Phoenix Software International	12	1	1	14