Among Roy's clients:

Aladin
Amdocs
Applied Materials
Avnet
Bank of Israel
Cellcom
Champion Motors
Computer Associates
Dexxon
ECI
EMC
General Electric

Hewlett Packard
Intel
Israel Aircraft Industries
Johnson & Johnson
Lynx Photonic Networks
Mamram
Microsoft
Mirs
Motorola
MRV
Ness Technologies
Netafim

One1 Systems
Orange
Orbotech
Rad Vision
Rafael
Red Match
Retalix
Robotech
Roche
SAP
Teva
Yellow Pages