I got this list from their site, these companies recognise CEH certification

EC-Council has certified IT professionals from the following organizations as CEH: (Selected list)


Canon
Hewlett Packard
US Air Force Reserve
US Embassy
Verizon
PFIZER
HDFC Bank
University of Memphis
Microsoft Corporation
Worldcom
Trusecure
US Department of Defense
Fedex
Dunlop
British Telecom
CIA
Cisco
Supreme Court of the Philippines
United Nations
Ministry of Defense, UK
Nortel Networks
MCI
Check Point Software
KPMG
Fleet International
Cingular Wireless
Columbia Daily Tribune
Johnson & Johnson
Marriott Hotel
Tucson Electric Power Company
Singapore Police Force
PriceWaterhouseCoopers
SAP
Coca-Cola Corporation
Quantum Research
US Military
IBM Global Services
UPS
American Express
FBI
Citibank Corporation
Boehringer Ingelheim
Wipro
United States Marine Corps
Reserve Bank of India
US Air Force
EDS
Bell Canada
SONY
Kodak
Ontario Provincial Police
Harris Corporation
Xerox
Philips Electronics
U.S. Army
Schering
Accenture
Bank One
SAIC
Fujitsu