20. T-Systems North America
Reinhard Clemens
2009 Revenue: $6.8 billion
T-Systems CEO Reinhard
Clemens began his career at
IBM and later was president
of EDS in Germany.
T-Systems, a subsidiary
of Deutsche Telecom, has
roughly 25,000 employees;
approximately 15,000
are involved in systems
integration.
The integrator recently
said it would partner with
energy and automation
technology specialist ABB
to develop smart grid
solutions in Germany.
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