84 Lumber Company

ARCADIS U.S., Inc.

ASML US, Inc.

ASRT

AT&T

Ahold

Air Products & Chemicals, Inc.

Alcatel-Lucent

Alliant Energy

Allied Group-Nationwide Subsidiary

Altair Engineering

American Automobile Assoc

American Red Cross

American Tire Distributors Inc

Amerigas Propane, LP

Apria Healthcare Inc.

AstraZeneca Canada Inc

Avaya Communication

Avis Budget Group

BJ's Warehouse

Bank of America

Bechtel Equipment Operations

Best Buy

Best Buy Co, Inc.

Borden Chemical and Plastic

BorgWarner

Brightview Landscapes LLC

Bunzl Distribution

CP Family of Companies

CRH/Oldcastle, Inc.

CSX Transportation

CVS Caremark Inc

Cardinal Health

Cargill

Central Transport International, Inc.

Charter Communications

Citi

Citizens Communications

Coca Cola Refreshments

Compass Group

Compucom Systems

Computer Science Corporation

Con-way Freight

Continental Airlines

Covalence Specialty Materials Corp.

Cox Enterprises, Inc.

Crawford

Culligan International Company

Cumberland Farms Inc.

Cummins, Inc.

DST Systems, Inc.

Day  Zimmermann Inc

Dell Computer Corp.

Delta Airlines

Disabled American Veterans

Diversified Automotive Inc

Dominion Resources Services, Inc.

Domtar

EMCOR

Eaton

Ecolab Inc.

Edison Electric Institute

Entergy

Evonik Degussa Corporation

Exel

Experimental Aircraft Association

FedEx

Ferguson Enterprises

Fidelity Investments

Fresenius - National Medical Care, Inc.

General Electric

Genuine Parts Company

George Weston Ltd.

Goodyear Tire and Rubber Company

HP Products

Harley-Davidson Motor Co.

Harrell''s

Hearst Corporation

Hexion Specialty Chemicals

Home Depot

Honeywell International

IBM

IGT

ITW Food Equipment Group

Illinois Tool Works Inc.

Information Builders

JP Morgan Chase

Johnson Controls, Inc.

Kmart

Lamar Advertising

Landstar System

Lenovo

Lincare, Inc.

Lockheed Martin Corporation

Lowe's

MCFAI

Magna Automotive

Marriott International, Inc.

MasTec

McDonald's Corporation

MetLife

Michelin

Mustang Club of America

NES Co

NRECA

NSK Steering Systems America

National Grid

Nationalease

NationsRent

Nationwide Insurance Enterprise

New York State United Teacher

ORKIN PCO SERVICES

Owens Corning Corporation

Penske

PepsiCo.

Petro, Inc.

Philips

Pitney Bowes Management Services

PricewaterhouseCoopers

Progressive Insurance

Public Service Electric & Gas Company

RL Transfer Inc

Regeneron

Republic Services Procurement Inc

Rochester Gas and Electric

Ryder Systems

SABIC Innovative Plastics

SCA Hygiene

Saint Gobain

Sedgwick CMS, Inc.

ServiceMaster, Inc.

Sherwin-Williams Company

Siemens

Sirius Satellite Radio

Sodexo

Sprint Nextel Corp.

Stanley Black and Decker

Stantec Consulting

State Farm Insurance

Stiefel Laboratories

Suburban Propane LP

Sysco Corporation

Tetra Tech

The Hertz Corporation

The Nielsen Company

The Travelers Indemnity Co - MS01A

Time Warner

Time Warner Telecom, Inc.

TruckPro

True Value Retail Members

Turner Construction Company

Tyco International, Inc.

U-Haul

UPS

United Rentals, Inc.

United Technologies

Value Options

Verizon Co

Veterans Advantage

WILSON ELSER MOSKOWITZ EDELMAN

Wal-Mart Stores Inc.

Ward Products, LLC

WellPoint Health Networks

XPO Enterprise Services Inc.

Xerox Corporation