3M

Abbott Laboratories

AC Products Company

Actio Corporation

AECOM

AEP

AFC Cable Systems, Inc.

AGFA Corporation

Agrium, Inc.

Ahlstrom

Air Liquide

Air Products & Chemicals, Inc.

Akzo Nobel Paints LLC.

Alabama Power Company

Alberto Culver Company

Alcatel-Lucent

Alcoa Engineered Products

Alcon

Alliant Energy Corporation

Alter Trading Corp.

Altivity Packaging, LLC

Altria

AMCOL International

Amcor Ltd.

American Commercial Barge Line

American Crystal Sugar Company

American Electric Power

AmeriPride Services Inc.

Amgen

Amic Inc

Amphenol Corporation

Amtrak

Anheuser-Busch,Inc.

AOL, Inc.

APAC

APC

APP Pharmaceuticals

Applied Industrial Technologies

ARCADIS

Archer Daniels Midland

Arizona Chemical Company

Arizona Public Service

ArvinMeritor Inc

Ashland, Inc.

Ashworth Leininger Group

Associated Electric Cooperative, Inc.

AT&T

Atlantic Richfield Co.

Autodesk, Inc.

Aveda Corporation

Avon Products Inc.

Bacardi

BAE Systems Ordnance Systems, Inc.

Baker Hughes, Inc.

BAL Associates

Baldwin Filters, inc

Ball Corporation

Barnes Group Inc.

Barnes Precision Components

Barrick Gold Corporation

Baxter Healthcare

Bayer Corporation

BBA Aviation

BD Biosciences

Beckman Coulter, Inc.

Bell Helicopter

Berry College

Best Buy

Beveridge & Diamond, LLC

BGE Home Products & Services

Biopure Corporation

BNA

BNSF Railway

Boart Longyear

Boeing Company

Bose Corporation

Boston Sand and Gravel Company

Bourns, Inc.

BP

BPXA

Brady Corporation

Bridgestone Retail Operations, LLC

Bristol-Myers Squibb Company

Brother International Corporation

Brown and Caldwell

Buckeye Partners, L.P.

Bunge North America, Inc.

Bureau of Land Management

Bureau Veritas

Burt's Bees, Inc.

Business & Legal Reports Inc.

Business EcoSystems

California Steel Industries, Inc.

Cameron-Cole, LLC

Campbell Soup Company

Cantey & Hanger, LLP

Cardinal Health

Cardinal Solar Technologies

Cargill Inc

Carlisle Syntec Inc.

CarMax

Carrier Corporation

CC Industries, Inc.

CDM

Celanese Chemical

CEMEX

Centocor Biologics LLC

Cephalon, Inc.

Certain Teed

CH2M HILL

Champion Technologies

ChemDesign Products, Inc.

Chemical Safety Corp.

City of Boynton Beach

City of Fredericksburg

Civil & Environmental Consultants, Inc.

Cliffs Natural Resources (Hibbing Taconite Company)

CMC - Americas

CNH Global N.V.

Cogentrix Energy, Inc.

Colgate-Palmolive

Colonial Pipeline Company

ComEd

Commercial Metals Company

Con Edison Company of New York

ConAgra Foods

Conbraco Industries Inc.

Conectiv Energy

Conestoga-Rovers & Associates

Conoco, Inc.

Conscientia Strategic Solutions LLC

Constellation Energy

Continental, AG

ConvaTec

Cook Composites and Polymers Co. (CCP)

Cook Plant Visitors Center

Cookson Group PLC

Corning Inc.

Covanta SEMASS

Covidien

Cristal Global

Cytec Industries

DAI Environmental Inc.

DaimlerChrysler Corporation

Dakota Software

Danaher Corporation

Daniels Sharpsmart, INC.

Dell Inc.

Delta Air Lines

Delta Consultants

DENSO International America

Dept. of Army

DePuy

DFW International Airport

Diageo America's

Dixie Chemical Company

Dominican University

Dominion Resources Services Company

Dresser Flow Technologies

Dresser-Rand Company

DSM Nutritional Prods, Inc.

Dubai Chamber Centre for Responsible Business

Duke Energy

DuPont

E Ink Corporation

E. & J. Gallo Winery

E2 ManageTech Inc.

Eastman Chemical Company

Eastman Kodak Company

Eaton Corporation

EBA

EHSCareers.com, Inc.

Eli Lilly and Company

EMC Corporation

Emerson Process Management

Endicott Interconnect Technologies

Energizer Personal Care

Enerplus Resources

ENHESA Inc.

Entegris, Inc

Entergy Services, Inc.

ENTRIX

Environmental Protection Agency

Environmental Quality Services

EORM

EPMAR Corporation

Equipping You LLC

ERM

Evergreen Solar Inc.

Exelon Generation Company, LLC

ExxonMobil

FCI USA, LLC

Fisher Industries

Fletcher Building Limited

Florida Power & Light Co.

Fluor Enterprises, Inc.

FMC

Foley Materials Company/ Columbus Quarry, LLC

Fortune Brands, Inc.

Fred Weber Inc.

Frito-Lay

FUJIFILM Holdings America Corporation

G&K Services, Inc.

Gambro

Gannett Fleming, Inc

GE

Genentech Inc.

General Mills

Genesys Health System

Genetics Institute

Genie Industries, A Terex Company

George Weston Limited

Georgia Power Co.

Georgia-Pacific Corp

Geosyntec Consultants

GlaxoSmithKline

Globalfoundries

Goodrich Corporation

GrafTech International Holdings Inc.

Granite Construction Inc.

H. J. Heinz Company

Haas TCM Inc.

Hallmark Cards, Inc.

Hamilton Sundstrand

Hanesbrands Inc.

Hanson Aggregates Arizona, Inc.

Hart & Cooley, Inc.

Harvard University

Hazen Paper Company

Heinz North America

Henkel

Heritage Environmental Services

Herman Miller, Inc.

Hewlett Packard Corporation

Home Market Foods, Inc.

Honeywell, Inc.

Hospira Inc.

Howland Greene Consulting LLC

Hubbard-Hall Inc.

Hughes Space and Communication Company

Human Genome Sciences, Inc.

Humantech, Inc.

Hydrodec North America LLC.

IBM Corporation

ICF International

ICI Paints

IHS

IMERYS

Ingersoll Rand

Innovative Employee Solutions

Intematix

InterfaceFLOR Commercial-USA

InterGen

International Paper

International Product Safety Management

International Rectifier Corp.

Interstate Brands Corporation

Invivo/Philips

ISP

ITT Corporation

James Hardie Building Products

JCPenney Corporation, Inc.

John Deere & Company

Johnson & Johnson

Joy Mining Machinery

Juniper Networks

Kennametal Inc.

Kennesaw State University

Keramida

Kerry Inc.

Kestrel Management Services, LLC

Keystone Foods

Kimberly-Clark Corporation

Kinder Morgan

KMI

Koch Carbon, LLC

Koch Membrane Systems, Inc.

Kohler Co.

Kongsberg Automotive

Kraft Foods Inc.

La Paloma Generating Company

Laboratory Quality Management, Inc.

LaFarge North America

Lanxess Corporation

Limited Brands

Lincoln Electric

Lockheed Martin Corporation

Louisiana-Pacific Corporation

LSI Corporation

Lucent Technologies

Lundbeck Research USA, Inc.

Luvata North America, Inc.

Macy's

Magna International Inc.

Malden Mills Industries, Inc.

Mars, Inc.

Martek Biosciences Corporation

Mary Kay, Inc.

Massachusetts Maritime Academy

MATS Ltd.

McCoy & Associates

McNeil PPC

MDS Pharma Services, Inc.

Meadwestvaco

Medlantic

MEDRAD, Inc.

MEMC Electronic Materials Inc.

Menasha Packaging Company, LLC

Merck Corporation

Michael Foods, Inc.

Miles & Stockbridge P.C.

MillerCoors Brewing Company

Millipore Corporation

Mine Safety Appliances Co.

Mirant

Mississippi Power

Mittal Steel USA

Modine Manufacturing Company

Mohawk Fine Papers Inc.

Motorola, Inc.

Murphy Exploration & Production Company

National Starch and Chemical

NBC Universal

NES Rentals

New Balance Athletic Shoe, Inc.

New York Power Authority

Newell Rubbermaid

NewPage Corporation

Nissan North America

Noble Energy

Norbert Plating Company

North Western Energy

Northeast Utilities

Northrop Grumman Corporation

Northwestern Flavors, Inc.

Novartis Vaccines and Diagnostics

NRG Energy

Nyacol Products Inc.

O'BRIEN & GERE

OfficeMax

OFS Fitel, LLC

Olin Corporation

Olympus

Orange County Transportation Authority

Otis Elevator

Procter & Gamble

P&H Mining Equipment

PACCAR Inc.

Pacific Gas & Electric Company

Parker & Associates

Parker Hannifin Corporation

PCC Airfoils, LLC

Pepco Holdings, Inc.

PerkinElmer Instruments

Pfizer, Inc.

Philips Research

Physics Directorate, Lawrence Livermore National Lab

Pinnacle West Capital Corporation

Pinnacol Assurance

Pitney Bowes

Pollution Control Industries, Inc. a TRADEBE Company

Polyglass USA

Port of Houston Authority

PPG Industries, Inc.

PPL Services Corporation

Pratt & Whitney

Praxair, Inc.

Precision Therapy Inc.

Prince Minerals, Inc.

Progress Energy

Public Services of New Hampshire

Q2 Technologies, LLC

Quaker Chemical Corporation

Quantum Corporation

Quintiles Transnational Corp

R.R. Donnelley

Racan Carrier

Range Resources Corporation

Raytheon

Redinger EHS

Regional Safety Manager

Rensselaer Polytechnic Institute

Republic Services, Inc.

Research In Motion

Resource Conservation and Development, Inc

Rexam Beverage Can Company

Rexnord Industries, LLC

Robert Bosch LLC

Robinson Enterprises

Rockwell Automation

Rowan County Government

Safe Passage

SAI Global

Saint-Gobain Corporation

San Onofre Nuclear Generating Station

Sanofi Pasteur

Sanofi-Aventis

Santee Cooper

Sara Lee Corporation

SC Johnson

Schering Plough, Inc.

Schneider Electric

Secure Energy, Inc.

Sekisui Specialty Chemicals America, LLC

Sensata Technologies

Sequa Corporation

Seventh Generation, Inc.

Sharp Electronics Corporation

Shaw Environmental, Inc.

Shaw Industries, Inc.

Shire Pharmaceuticals

Siemens Healthcare Diagnostics

Sigma-Aldrich Corporation

Sikeston Board of Municipal Utilities

Sikorsky Aircraft

Silgan Containers Manufacturing Corporation

Sims Recycling Solutions

SKF USA Inc.

Smurfit - Stone

Southern Company

Southwire

Spartech Corporation

Spectra Energy

Spectrum Brands, Inc.

Sper Scientific

Springfields Fuels Ltd

Stanford University

Stateside Associates

Steele Communications

Stericycle, Inc.

STERIS Corporation

Stryker Biotech

Sunbury Generation LP

Sussex County Community College

Sustainability Consultants

Syntex Management Solutions

Target Corporation

Technical Services Company

Teknor Apex Inc.

Teleflex Inc.

Temple-Inland

Tennessee Valley Authority

Teradyne

Terra-Gen Operating Company

Textron, Inc.

The Coca-Cola Company

The Dow Chemical Company - Electronic Materials

The Estee Lauder Companies, Inc.

The Gavilon Group, LLC

The Lincoln Electric Company

The NutraSweet Company

The Okonite Company

The Ross Group Construction Corporation

The Scotts Company

The ServiceMaster Company

The Sherwin-Williams Company

The Solution Foundry

The Valspar Corporation

The Valvoline Company

The William L. Bonnell Company, Inc.

The Wm. Wrigley Jr. Company

Thomas Jefferson University

Thyssenkrupp

Toyota Motor Sales, USA, Inc

TPC Group

Trinity Consultants/T3

Twin Rivers Technologies

Tyco International Inc.

Tyson Foods, Inc.

U-Haul International

Ultralife Corporation

United Industries Corporation

United States Gypsum Company

United States Postal Service

United Technologies Corporation

University of California, Riverside

University of Pennsylvania

UPS, Inc.

URS Corporation

US Foodservice

USAF

USG Corporation

Vanderbilt University

Varian Medical Systems, Inc.

Ventra - Bumpers Systems Group

Veolia ES Technical Solutions, L.L.C.

Verso Paper

Vi-Jon, Inc.

Viking Range Corporation

Vulcan Materials Company

W. R. Grace & Co. - Conn.

Walgreen Co.

Wal-Mart

Ward Leonard Electric Company Inc.

Warren Equities

Waste Management, Inc.

Wastequip, Inc.

Webster Industries

Westinghouse Electric Co. LLC

Williams Production RMT Company

Winergy Drive Systems/Siemens Industry

Wood Group Power Operations, Inc.

Woodward Governor Company

Worldcolor

WSP Environment & Energy

Zimmer