ABB Climate Sys./Spec.Ind'l.Dv - SCOTLAND

ABS Consulting - GREECE

ABS Group, Inc. - TX, USA

Ackerman-Practicon Associates - CA, USA

Acorn Engineering & Consulting - AZ, USA

Adolfson & Peterson Constr.Tech.Grp - MN, USA

ADP Marshall/Fluor Daniel Co. - RI, USA

Advanced DZign Systems - AZ, USA

Advanced Plant Technologies - UNITED KINGDOM

Advanced Technology Systems - PA, USA

AdvanceTEC, LLC - VA, USA

Advantage Electric Supply - CA, USA

AE Associates, Inc. - CO, USA

Aeolus Technovations - INDIA

AES Clean Technology - PA, USA

AHSC McLellan Copenhagen - CA, USA

Air Applitec, Inc. - CA, USA

Air Energy Systems - PA, USA

Air Enterprises,Inc. - OH, USA

Air Systems, Inc. - CA, USA

Air Techniques/ Dv. Hamilton Assoc. - MD, USA

Airo Clean Inc. - PA, USA

Alpha Engineering, Inc. - DE, USA

AMEC Construction Ltd. - UNITED KINGDOM

Amec Design & Management Ltd. - UNITED KINGDOM

American Cleanroom Systems - CA, USA

American Engineering, Inc. - IL, USA

Amico-Genesis - UT, USA

AP Technology Management,Inc. - MN, USA

APCS Cork Ltd. - IRELAND

APMI, Inc. - AZ, USA

APSI Technologies SDN BHD - MALAYSIA

APSI-MaxcleanTechnologies Pte. Ltd. - SINGAPORE

ARCADIS, Inc. - SC, USA

Ardmac Performance Contracting - UNITED KINGDOM

Arrowmight Biosciences - UNITED KINGDOM

Asepsis Systems Ltd. - UNITED KINGDOM

Associated Fire Protection - NE, USA

Atlas Clean Air Ltd. - SCOTLAND

Atlas Clean Air Ltd. - UNITED KINGDOM

Atlas Clean Air Ltd. - UNITED KINGDOM

Atlas Environments Ltd. - UNITED KINGDOM

Atmel Corporation - CO, USA

B2E Consulting Engineers - VA, USA

Bally International, Inc. - NY, USA

Basan GmbH - GERMANY

Bassaire Limited - UNITED KINGDOM

Baumann, Inc. - NH, USA

BE&K Engineering of NC, Inc. - NC, USA

Beatty Construction Company - GA, USA

Bechtel Environmental, Inc. - CA, USA

Beratende Ingenieure AG - SWITZERLAND

Bibb & Associates, Inc. - KS, USA

Biomedical Enterprises Inc - NY, USA

Black & Veatch - MA, USA

Black & Veatch Power Dev. Corp. - KS, USA

Boehringer Mannheim GmbH - GERMANY

Bosch Ingenieurburo AG - SWITZERLAND

Boucher Mouchka Larson Architects - OR, USA

Building Design Partnership - SCOTLAND

Burns & Roe Company - NJ, USA

Button Group - TX, USA

C.G.Labs & Consulting Services - TX, USA

Cadcentre Group Plc. - UNITED KINGDOM

Cadcentre, Inc. - DE, USA

Cal Poly-San Luis Obispo - CA, USA

Camp Dresser & McKee, Inc. - MA, USA

Carmetec - UNITED KINGDOM

Carmetec AB - SWEDEN

Carmetic Cleanroom Systems - SWEDEN

Carmichael Company Ltd. - CANADA

Cavendish UK Ltd. - UNITED KINGDOM

Certified Air Solutions - PA, USA

CGC Interiors - CANADA

CH2M Hill/IDC - OR, USA

Chase, F. H. Inc. - MA, USA

Chase. G.T. Associates Ltd. - UNITED KINGDOM

Chempharm - INDIA

Citadel Architectural Products - IN, USA

Clean Air Flow, Inc. - IL, USA

Clean Air Products/Clean Air Sys. - MN, USA

Clean Air Solutions - ID, USA

Clean Air Technick BV - NETHERLANDS

Clean Air Technology, Inc. - MI, USA

Clean Modules Ltd. - UNITED KINGDOM

Clean Room Construction Ltd. - UNITED KINGDOM

Cleanpak International, Inc. - OR, USA

Cleanpak Life Sciences - WA, USA

Cleanroom Equipment Ltd. - IRELAND

Cleanroom Solutions Ltd. - UNITED KINGDOM

Clestra/Comp-Aire Systems,Inc. - MI, USA

CMPA, Inc. - TX, USA

Columbia Construction Co/Spec.Proj. - MA, USA

Comprehensive Architectural - CA, USA

Contamination Control & Device - IL, USA

Contamination Prevention Services - CA, USA

Control Engineering & Tech. - MA, USA

CRB - NC, USA

CUH2A, Inc. - NJ, USA

Curtis Steel Limited - UNITED KINGDOM

Custom Industries Inc. - NC, USA

CWR Consultants - MD, USA

D&Z Micro Electronics - PA, USA

Dacon Corporation - MA, USA

DBCM International, Inc. - WA, USA

DE SMET ESPANA, S.A. - SPAIN

Delaware Filter Corporation - DE, USA

Design Station Technologies - MN, USA

Designco - CA, USA

Dinardo Partnership - SCOTLAND

Dittel Cleanroom Engineering - GERMANY

Dober Group, The - IL, USA

Donn Products GmbH - GERMANY

Donn Products GmbH - GERMANY

Donn Products Ltd. - UNITED KINGDOM

Donn S.A. - FRANCE

Donn Scandinavia - SWEDEN

Donovan Engr. & Constr. Co., Inc. - NH, USA

Dowdall Engineering, Inc. - KS, USA

DPR Construction - CA, USA

Dryden Engineering/Dv.Pentagon Tech - CA, USA

Dual-Temp Installations - IL, USA

Earth Tech/ Kaiser - ID, USA

Ecoproject - RUSSIA

EEL Environmental Engineering - IRELAND

Ehrlich-Rominger - CA, USA

Enviroflex, Inc. - CA, USA

Environmental Engin.Ltd./EEL - IRELAND

Environmental Engineering Consult. - TN, USA

Environmental Health & Engineering - MA, USA

Environmental Structures, Inc./ ESI - OH, USA

Erland Construction, Inc. - MA, USA

ErtelAlsop - NY, USA

ESCO Engineering Corporation - MA, USA

Facilities Technology, Inc. - CA, USA

Facility Planning & Resources, Inc. - PA, USA

Fedders/ Envirco Corp. - NM, USA

Felcon CDI Ltd. - UNITED KINGDOM

Felcon Ltd. - UNITED KINGDOM

Fell Group International - UNITED KINGDOM

Fil-Tek,Inc. - MA, USA

Filtra Teknopak Cleanroom Systems - INDIA

Flanders Corp./ Flanders Filters - NC, USA

Flanders Corporation - FL, USA

Flanders/ CSC Corporation - NC, USA

Flomerics, Inc./ Northwest Office - CA, USA

Flomerics, Inc./ Southwest Region - CA, USA

Flomerics/ Div. Flovent - MA, USA

Flowmerics Ltd. - UNITED KINGDOM

Fluor Corporation - CA, USA

Fluor Daniel - AZ, USA

Fluor Daniel Corporation - SC, USA

Flynn Construction, Inc. - TX, USA

Formus AG - GERMANY

GCD-General Cleanroom - SWITZERLAND

Gem City Engineering Company - OH, USA

Gerbig Engineering Company - MN, USA

Giffels Associates - MI, USA

Glatt Air Techniques, Inc. - NJ, USA

Halco Products Co./Hale Engineering - IL, USA

Hallmark Construction, Inc. - CA, USA

Harland, Johnston & Co. Ltd. - IRELAND

Harpring, Inc. - KY, USA

Harris Environmental Systems - MA, USA

Hayes,Seay,Mattern & Mattern - VA, USA

Helix Medical, Inc. - CA, USA

HEMCO Corporation - MO, USA

Hepatest, Inc. - FL, USA

HLM Design - NC, USA

Hodess Building Co., Inc. - MA, USA

HOK - MO, USA

Holmes & Narver, Inc. - CA, USA

Honeywell Consumer Prodts.,Inc - MA, USA

Hosokawa Micron International - NY, USA

How Engineering Services Ltd. - UNITED KINGDOM

Hughes, R.G. Company - IL, USA

Hulley & Kirkwood - SCOTLAND

Hunt Construction Group, Inc. - IN, USA

Hyundai Engr. & Constr. Co. - KOREA

I.C.E. Block Building Sys.,Inc - OH, USA

ICF Kaiser Advanced Technology - ID, USA

ICOM Mechanical, Inc. - CA, USA

IDC - SCOTLAND

Inclosia Solutions/ Dow Chemical - MI, USA

Industrial Design & Construct./ IDC - OR, USA

Integrated Construction Tech. - ID, USA

Integrated Project Srvcs./IPS - PA, USA

Interface Architectural Resources - CA, USA

Interface Architectural Resources - MI, USA

IPS, Inc/ Integrated Project Srvcs. - MA, USA

IPS, Inc/ Integrated Project Srvcs. - PA, USA

J.M. Coull, Inc. - MA, USA

Jacob Sverdrup Civil - MO, USA

Jacobs-Sirrine Engineering, Inc. - CA, USA

JMC Environmental Systems - MA, USA

Jones, J.A., Construction Co. - NC, USA

Joy Process Mechanical Systems - NY, USA

JRMA Architects & Engineers - CA, USA

K&A Associates, Inc. - MN, USA

Kerner Group, The - VA, USA

Kinetic Systems, Inc. - CA, USA

Kirlin, John J., Inc. - MD, USA

Kleen Tech Engrng.&Equip.Factory - CHINA

Kling, Inc. - PA, USA

Knight Archt.Engrs.Planners, Inc. - AZ, USA

Knight Archt.Engrs.Planners, Inc. - IL, USA

Krantz-TKT Cleanroom Technol. - GERMANY

Kvaerner Engineers & Constructors - TX, USA

Kyne & Clyne Engineering - IRELAND

Laing Management (Scotland)Ltd - SCOTLAND

Laird, Michael Partnership - SCOTLAND

Laminar Flow Systems, Ltd. - UNITED KINGDOM

LAN Associates - NJ, USA

Lasco Services, Inc. - TX, USA

LeChase Construction - NY, USA

Lepco, Inc. - TX, USA

Liberty Industries, Inc. - CT, USA

Life Science International - PA, USA

Lockwood Greene - SC, USA

LTG - GERMANY

LTG Mailaender GmbH - GERMANY

LTG/ Air Con ApS - DENMARK

LTG/ Meidinger & Co. - SWITZERLAND

LTG/ Stork, J.E. Ventil. B.V. - NETHERLANDS

Luwa USA, Inc. - TX, USA

Luwa, Ltd. - UNITED KINGDOM

Luwa/ Dv. Ind'l.Air Engineering - SWITZERLAND

M&W Pearce Ltd. - UNITED KINGDOM

M.E.I. Proj. Engrs. Sdn Bhd - MALAYSIA

M.E.I. Proj.Engrs. Pte. Ltd. - SINGAPORE

M.E.I. Proj.Engrs.(Thai) Co. - THAILAND

M+W Pearce Ltd. - UNITED KINGDOM

M+W Zander - GERMANY

M+W Zander Facility Engineer. GmbH - GERMANY

M+W Zander/ U.S. Operations, Inc. - TX, USA

Machine Kinetics - TN, USA

MAI Industries - CA, USA

Maxcess Techn/ Dv.Hitachi Maxco - SC, USA

Maxclean Phils., Inc. - PHILIPPINES

Maxclean Tech.(Thailand) Ltd. - THAILAND

McCarthy Construction Co. - MO, USA

McCarthy Construction Company - CA, USA

McGraw/Baldwin Architects,Inc. - CA, USA

MCMS, Inc./Micron Custom Mfg. Srvcs - ID, USA

Meierhans & Luginbuhl - SWITZERLAND

Meissner & Wurst GmbH & Co. - GERMANY

Metal Crafters, Inc. - NY, USA

Micro-Clean, Inc. - PA, USA

Microcontamination Control Corp. - MA, USA

Micron Technology, Inc./ Crucial Dv - ID, USA

MicroTest Laboratories, Inc. - MA, USA

Microzone Corporation - CANADA

MidConn Interiors & Constr. - CT, USA

Middough Associates - OH, USA

Midwest Cleanroom Associates - MI, USA

Midwest Production Supply/ MPS - MN, USA

Morrison Knudsen Corporation - OH, USA

MPW Industrial Services - OH, USA

MRC Sys./Modular Room Constr. - INDIA

MRC Sys./Modular Room Constr. - UNITED KINGDOM

MSS Clean Technology, Inc. - GA, USA

MSS-Clean Technology - UNITED KINGDOM

National Nuclear Corp. Ltd. - UNITED KINGDOM

NexGen Ergonomics - CANADA

Nippon Kokan Kiki - JAPAN

NNC Ltd. - UNITED KINGDOM

North Star Cleanroom Concepts - AZ, USA

O'Brien/Atkins Assoc., P.A. - NC, USA

P3 Technologies, Inc. - PA, USA

PACE Partnership Ltd. - UNITED KINGDOM

Pacific Environmental Technologies - CA, USA

Pale Partnership - UNITED KINGDOM

Palt Company, The - CA, USA

Parr Partnership - SCOTLAND

Pentagon Technologies - CA, USA

Performance Contracting Group - KS, USA

Performance Contracting, Inc./ PCI - AZ, USA

Performance Contracting, Inc./ PCI - AZ, USA

Performance Contracting, Inc./ PCI - CA, USA

Performance Contracting, Inc./ PCI - MA, USA

Performance Contracting, Inc./ PCI - NC, USA

Performance Contracting, Inc./ PCI - TX, USA

Performance Contracting, Inc./ PCI - VA, USA

Performance Contracting, Inc./ PCI - WA, USA

Performance Contracting, Inc/ PCI - TN, USA

Perini Building Company - MA, USA

Pharmadule AB - SWEDEN

Pizzagalli Construction Company - VT, USA

Planenrac Eng. Term. S/C Ltda. - BRAZIL

Precisioneers - OH, USA

Prettl Clean Room Technology - GERMANY

Prime Building Systems, Inc. - FL, USA

Protocol, Inc. - OR, USA

PSC Engineers & Consultants - PA, USA

Q Medical Science Ltd. - UNITED KINGDOM

Quality Air Control - VT, USA

Quality Cleanroom Systems, Inc. - NY, USA

Quasar Engineering - CA, USA

Ragsdale Construction - CA, USA

Raytheon Engineers & Constrs. - AL, USA

Research Unlimited - MA, USA

Resha Inc - TN, USA

RHS Construction Company - FL, USA

Riparius Construction, Inc. - MD, USA

RKI Cleanroom Srvcs/Dv.R.Kraft,Inc. - NY, USA

RSP Consulting Engineers - UNITED KINGDOM

Rudolph Technologies, Inc. - NJ, USA

Safecare Technology - IRELAND

Safety Equipment Corp. - CA, USA

Safework, Inc. - CANADA

Samoo Architects & Engineers - KOREA

Sanki Engineering Co., Ltd. - JAPAN

Sasakura Engineering Co.,Ltd. - JAPAN

Schwarb-Vollhaber - MN, USA

Scientific Buildings, Inc. - OH, USA

Scientific Systems Corp. - LA, USA

SDB, Inc. - AZ, USA

Servicor CPI - CA, USA

Shaw Environmental, Inc. - NJ, USA

Shawmut Design & Construction - MA, USA

Shin Sung Engineering Co.,Ltd. - KOREA

Shuttleworth Asia Ltd. - JAPAN

Shuttleworth Europe Ltd. - BELGIUM

Shuttleworth Europe Ltd. - IRELAND

Shuttleworth Southeast Asia - MALAYSIA

Shuttleworth, Inc. - IN, USA

SmithGroup - MI, USA

SMRT Architects & Engineers, Inc. - NJ, USA

SMRT, Inc. - FL, USA

SMRT, Inc. - ME, USA

Specific Environments Ltd. - UNITED KINGDOM

Starkey, Peter C. Associates - UNITED KINGDOM

Steril SpA - ITALY

Stratos Ventilation - SWEDEN

STV/Sanders & Thomas Inc. - PA, USA

Swiki Anderson & Assoc.,Inc. - TX, USA

Symmes Maini & McKee Assoc. - MN, USA

Symmes,Maini & McKee Assoc. - MA, USA

T.A. Caid Industries - AZ, USA

TAC Americas/ Control Solutions - OH, USA

Talon Engineering - MN, USA

Tanvec Ltd. - UNITED KINGDOM

Tarmac Hi-Tec - UNITED KINGDOM

Technovation Systems, Inc. - VA, USA

Tecomak Ltd. - UNITED KINGDOM

Tefen Ltd. - NY, USA

Thermal Transfer(Scotland)Ltd. - SCOTLAND

Thermal Transfer/Sub.So.Elect. - UNITED KINGDOM

Thermo Electron - MA, USA

Thrislington Engineering Co. - UNITED KINGDOM

Triad Design & Equipment, Inc. - CA, USA

Trumbull-Nelson Construction Co. - NH, USA

Tuchenhagen North America, Inc. - ME, USA

Turner Construction Company - NY, USA

Ultra Clean Technology - CA, USA

USG Asia Pacific Hold.Pte.Ltd. - MALAYSIA

USG Interiors Pacific Ltd. - NEW ZEALAND

USG Interiors Pty. Ltd. - AUSTRALIA

USG Interiors, Inc. - IL, USA

USG Italia SRL - ITALY

USG Middle East Ltd. - SAUDI ARABIA

van Vonderen Cleanroom - NETHERLANDS

VECO International, Inc. - MI, USA

Vectech Pharmaceutical Consultants - MI, USA

Vectech Pharmaceuticals Cnslts - MI, USA

Washington Group International - CO, USA

Washington Group International - NJ, USA

Webb Core, Inc. - OR, USA

Weiss Umwelttechnik GmbH - GERMANY

Western Environmental Corporation - OH, USA

Whiting-Turner Contracting Co. - MD, USA

WJC Engineering Services Ltd. - UNITED KINGDOM

Wonway Manufacturing Sdn. Bhd. - MALAYSIA

Wright Line, Inc./ Sub.Applied Pwr. - MA, USA

Yeso Panamericano S.A.deC.V. - MEXICO

Yokogawa Corp. of America - GA, USA

Zeigler Technologies/Div.Z-Tec - VA, USA

Zellweger Luwa AG - SWITZERLAND

Zero-Temp Equipment - CA, USA

Zurheide-Herrmann,Inc. - MO, USA