Our Clients

Over the last 30 years, ProTech has worked with thousands of customers.  Our clients include over 60% of the Fortune 500 including 9 of the Top 10 U.S. Companies* and many government agencies.   Here are just some of the organizations we have worked with...

AAA
Accenture
Acxiom
ADP
Advanced Concepts Center, LLC
ALCOA
Allen Systems Group
Allmerica Financial
Allstate Insurance
Alltel
American Century Services
American International
Ansaldo STS
Antares Management Solutions
AOL
Associated Wholesale Grocers
Atchinson, Topeka & Santa Fe
AT&T
Bank of America
Bank of New York Mellon
Bayer Corporation
BB&T
Blue Cross/Blue Shield
BMC
Canada Border Services Agency
Canada Revenue Agency
Canadian Imperial Bank of Commerce
Canadian Life Assurance Co.
Canadian Pacific Rail
Care First BC/BS
Center for Disease Control
Centimark
Charles Schwab
Chevy Chase Bank
CIGNA
City of Denver
City of Seattle
Cleveland Clinic
Coca-Cola
Commonwealth of Pennsylvania
Corporate Systems
ConAgra
County of Denver
CSX Technologies
Delta Air Lines
Dillards Department Stores
Dollar Bank
Duke Energy
Duquesne Light
Electronic Data Systems
Equifax Services
Excela Health
ExxonMobil
Fidelity Info. Services
First Data Corporation
First National Bank of Omaha
Fiserv
Florida A & M University
Florida State University
Food Lion
GEICO
GENCO Distribution System
Guardian Life Insurance
Honda of America
Household Financial
IBM
Internal Revenue Service
JD Edwards Canada
Kraft Brands
Kronos
LA-Z-Boy Chair, Inc.
Mayo Clinic
McGill University
Ministry of Natural Resources of Ontario
Mutual of Omaha
NASA
National City Bank
Nationwide Insurance
Navy Federal Credit Union
Nordstroms
PEMCO
Perot Systems
Pittsburgh Technical Institute
PNC Bank
Public Works & Government Services Canada
Queens University
Qwest
Regence Blue Cross/Blue Shield
Robert Morris University
Robicon
Royal Bank of Canada
Royal & Sun Life Assurance Co
Royal Canadian Mounted Police
Sasktel
Schering Plough
Sears Canada
Service Canada
Sony of Canada
Southern California Edison
Southern Company
Standard & Poors
Standard Life Canada
State of Florida
State of Kansas
State of Missouri
State of New York
State of Ohio
State of Oregon
State of Louisiana
State of Pennsylvania
State of Texas
State of Washington
State of West Virginia
Storage Technology Corporation
Sun Life Financial
Sun Microsystems
Sun Trust Bank
T4G Limited
Telus Enterprise Solutions
Telus Mobility
The Limited Stores
The Loyalty Group
Time Warner
Toronto Star
Town of Richmond Hill
Travelers Insurance
United Health Group
University of Florida
University of Pittsburgh
USAF
USA Group
US Army
US Bureau of the Census
USDA
US Dept. of Interior, National Business Center
US Dept. of Interior, Minerals Management Service
US D.O.D.
US Marine Corps
US Navy
US Steel Corp.
VCI Solutions
Verizon
Washington Mutual Bank
WESCO Distribution
World Vision Canada
York University
YRC
Zurich Insurance


* https://en.wikipedia.org/wiki/List_of_largest_companies_in_the_United_States_by_revenue