About Us

The Company

Ernst Schierholz The founders Thilo Dreyer
Ernst F. Schierholz Thilo Dreyer
  • 16 years experience as application designer and developer
  • Worked on MVS, VSE, and BS2000 using CICS, IMS DB/DC, DL/I, UTM, IDMS, UDS, SESAM e. a.
  • Managed 30+ large migration projects for insurances, banks, authorities, e. a.
  • Designed several S/W-inventory and conversion products before starting the ITMS product suite.
  • An outstanding expert in assembler and assembler transformation
  • Competence in “new world” technologies
  • 11 years experience as application designer and developer in various environments
  • A leading expert in Java, Linux and database design
  • Technical management of several modernisation projects
  • Designed and implemented several analysis and conversion products of the ITMS product suite.
  • Competence in “old world” technologies and languages


IT Modernisation Services GmbH
Westerrode 29
22415 Hamburg

Registered at the Court of Hamburg
Registration number: HRB 142446
Tax identification number: DE 307678203

Owners and Managing Directors
Thilo Dreyer   +49 170 99 45 218
Ernst Schierholz   +49 171 218 2322