Companies I had and have the pleasure of working with:

Phillips 66
Huisman Equipment
Hitachi
Celerant
General Electric Company (GE Oil&Gas)
Decision Strategies International
Royal Dutch Shell plc
Repsol
Imtech
BMW
Dynegy
Reliant
Ultra
Nucletron
Braskem
Ecopetrol
Petrotrin
OptiCanada
Codelco
Pemex
Enap
Copesul
Atlantic LNG
YPF
Zeiss
Vopak
Sasol
GMF
Rheinzink
Watts & Partners
PIMS
Melkunie Holland
MacGregor
Costain Blankevoort
Bodewes Shipyards