Headquartered in Maryland, with z/OS-based scheduled public mainframe courses in U.S. cities.

z/OS Systems Programmers, Joanna Gordon and Mark Conner, provide consulting services from Dallas, Texas.

DB2 and CICS migration specialists, combining software and services for: IMS to DB2, VSAM to DB2, CA-IDMS to DB2, ADABAS to DB2, CA-Datacom to DB2, Total/Supra to DB2 and IMS/TM to CICS.

European specialist in z/OS-based platforms, including integration with Unix, Linux and Windows NT.

Offers the complete Spectrum of IBM Certified Training, across the entire US.

A Chicago-area company offering new and used IBM mainframes, Flex-ES mainframe systems, upgrades, peripherals and services, including backup and disaster recovery.

Mark Lillycrop's UK-based company offers IT research, writing and marketing services, specializing in business continuity, security, service management, storage and mainframe data center strategy in Europe and the U.S.

z/OS and zSeries implementation, migration, upgrades, performance, tuning and capacity planning. Unix system administration for z/OS Unix System Services, mainframe and other Linux, AIX, HP-UX and Solaris. Plus databases, networks and Windows system a...

Heavy emphasis on mainframe classroom courses, mostly for z/OS environments. Also offers Remote Contact Training (RCT).

An industry analyst and consultancy serving users and vendors of corporate IT.