Mainframe Software Statistics

Largest z/VM Vendors

Top 20 z/VM Vendors (out of a total of 72 active z/VM vendors), ranked by the number of z/VM software products currently marketed

	Vendor	Active	Supported	Inactive	Total
1	Rocket Software	35	3	4	42
2	IBM	33	8	71	112
3	Software AG	20	1	0	21
4	Broadcom	13	31	2	46
5	TPS Systems	11	0	0	11
6	Semantic Designs	8	0	0	8
7	Velocity Software	7	0	0	7
8	Attachmate	6	0	1	7
9	SDS	6	0	0	6
10	Software Product Research	5	0	0	5
11	Serengeti Systems	4	0	0	4
12	Select Business Solutions	4	0	0	4
13	MPI Tech	4	0	0	4
14	Esker	4	0	0	4
15	Redvers Consulting	4	0	0	4
16	Aviva Solutions	4	0	0	4
17	Barr Systems	3	6	1	10
18	Dignus	3	0	0	3
19	Turbosoft	3	0	0	3
20	CLEO Communications	3	2	0	5