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- Bassaire Ltd UK
- Bigneat UK
- bioMérieux France
- CES Critical Environment Solutions UK
- Clean Room Construction CRC UK
- Cleanroom Design and Construction CDC UK
- Clearsphere Ireland
- CMR Controls Ltd UK
- Connect 2 Cleanrooms UK
- Dart Valley Systems UK
- Elite Measurement Solutions UK
- Erlab DFS US
- Felcon Ltd UK
- Flowcrete UK UK
- Forbo Flooring UK Ltd UK
- Galvani Clean Technology Italy
- Guardline Technology UK
- Hoyles Electronic Developments UK
- Lynbond 2000 Ltd UK
- Mach-Aire Ltd UK
- Micronova Manufacturing US
- Panel Projects Ltd UK
- PharmaCleanse UK
- Pharmagraph UK
- S&M Electronics Ltd UK
- Sekisui Chemical GmbH Germany
- Tecomak Environmental Services UK
- Teknomek Ltd UK
- Tennant Cleaning Solutions UK
- Vaisala Oyi Finland
- Validair (Euro) Ltd UK
- VINCI UK
- Yorkon Portakabin UK
Companies
- 1Cold Ltd UK
- A & L Co Industries Stl Italy
- A FILTER AB Sweden
- A-T Instruments Ltd. UK
- A1 Envirosciences UK
- A3P France
- AAF International US
- Abatix Corp United States
- Abbie Gregg Inc US
- Abnormal Loads Services (International) Ltd UK
- ABTECH, Inc. US
- AC Fluid Technology UK
- ACAL Radiatron UK
- Accenthansen UK
- Acciona Infraestructuras SA Spain
- Accu-Fab Metal Products Ltd Canada
- ACE Air Clean Environment Inc. US
- ACM, Advanced Cleanroom Microclean US
- ACMV Technology Pte Ltd Singapore
- Acotec srl Italy
- Actec Ireland
- AD CleanRooms Engineering Ltd Israel
- Addlestone Electronics Ltd UK
- Adept Technology, Inc. US
- Advance Tabco US
- Advanced Cleanroom Microclean ACM US
- Advanced Electropolishing Technologies United States
- Advanced Engineering (Asia) Pte Ltd Singapore
- Advanced Filtration Concepts US
- Advanced Handling Services United States
- Advanced Technology Group US
- AdvanSource Biomaterials Corporation US
- Aercon UK
- Aerience - Institute of Air Science and Contamination Control India
- Aerogo UK Ltd UK
- Aeromech Equipments Private Ltd India
- Aerte UK
- AES Clean Technology US
- Aggressive Industrial Structures United States
- Aidacom Technology China
- Air Ability Limited UK
- Air and Liquid Filtration Ltd UK
- Air C2 France
- Air Care Technology New Zealand
- Air Control, Inc. US
- Air Medical Program France
- Air Science Ltd. UK
- Air Techniques International United States
- Airborne Quality Corporation United States
- AirCare Automation Inc US
- AirClean Systems, Inc. US
- Aircom Manufacturing, Inc. United States
- Airfeso Ltd UK
- Airflow Engineered Systems Inc. United States
- AirInSpace BV Netherlands
- Airoclean Micro Devices India
- Airology Systems Limited UK
- Airplan SA Spain
- Airtec A/S Denmark
- Airtec Air Systems Ltd UK
- Airtec Filtration Ltd UK
- Airtech Environmental Systems UK
- Airzone Clima S L Spain
- Al-Designhaus GmbH Germany
- Albany Door Systems US
- Alkemy Ltd UK
- Alliance Engineering US
- Allied Modular Building Systems US
- Alltex Uniform Rental Service United States
- Almond Engineering Ltd UK
- Alp S.r.L. Italy
- Alpha Calibration Services UK
- Alpha Ionstatex Germany
- Aludecor Lamination Pvt Ltd India
- AM Technical Solutions US
- American Cleanroom Systems US
- Ami Chem India
- Anabiotec NV Belgium
- Analytical Technology US
- Andrew Sykes Ltd UK
- Anglia Coldroom Maintenance Ltd UK
- Angstrom Technology Ltd. US
- Ansan Commerical Interiors UK
- Ansell Europe Belgium
- Antech Calibration Services UK
- Antistat Ltd UK
- Anton Hurtz GmbH & CO. KG Germany
- APC Contech UK
- Apcee Corporation China
- Applied Handling Equipment Co. United States
- Apreco UK
- AQC Dust Collecting Systems, Inc. CA
- ARAMARK Cleanroom Services US
- Arboles UK Ltd UK
- Arcalian Ltd UK
- Arden (Vic) Pty Ltd Australia
- Ardmac Group Ireland
- Areco France
- ARGOS-HYTOS GmbH Germany
- Arias GmbH Germany
- Armstrong Ceilings UK
- Arrow Industrial Group Ltd UK
- Arrow Medical UK
- Arrow Technologies S Pte Ltd. Singapore
- Artcraft Welding, Inc. United States
- Aseptic Technologies Belgium
- Asgard Cleanroom Solutions Ireland
- Ashcroft Instruments UK
- ASHRAE US
- ASPEC Association for the Prevention and Study of Contamination France
- Astra Lighting UK
- Ataro Klima Bulgaria
- ATL US
- Atlantic Technical Systems United States
- Atlas Clean Air Limited UK
- Atlas Environments Ltd UK
- Atmos Tech Industries US
- Automation Products Group United States
- AV Innovate UK
- Avanta UK Ltd UK
- Avon Calibration Services Ltd. UK
- Axima Seitha France
- Axium Process UK
- B-Hygienic bvba Belgium
- BAG Health Care GmbH Germany
- Bahar Cleanroom Ind Iran
- Balco Ltd. UK
- Balfour Beatty Construction UK
- Bam Contractors Ireland
- Bandy Incorporated US
- Basan GmbH Germany
- Bassaire Ltd UK
- Batimpro Charrier SA France
- Beardsell Ltd India
- Beatson Fans & Motors UK
- Becker Cleanroom GmbH Germany
- Becker Technologies Pvt Ltd India
- Bell Comm Technologies Malaysia
- Bellcomb Technologies, Inc. United States
- BergmanLabora AB Sweden
- BerlinerLuft Technik GmbH Germany
- Bertech-Kelex United States
- Besam Entrance Solutions United States
- Beyer Raumdesign Germany
- Bigneat UK
- BioCote UK
- Biodefence Ltd UK
- Biologics Modular US
- bioMérieux France
- BioPharm Sanitisation and Cleaning Ltd UK
- Bioscience International US
- BioSpherix US
- BKB Associates, Inc. United States
- Blue Diamond Industrial Supplies UK
- Blue Thunder Technologies Inc US
- BM Polyco Ltd UK
- BOFA International Ltd. UK
- BOS GmbH Best Of Steel Germany
- Bosch Group Germany
- Bosio Metal Specialties Inc. United States
- Boston Analytical Inc. US
- Botron, Inc. United States
- Boulting Environmental Services Ltd UK
- Bovis Lend Lease Limited UK
- Brady Medical Solutions Germany
- BRE Group UK
- Breuell Ingenieurbüro GmbH Germany
- Bridgen Flooring UK
- British Standards Institution UK
- Bruce Industrial Co., Inc. United States
- Bruno Courtois SA France
- Bry-Air Inc. US
- BSRIA UK
- Buckleberry Ltd UK
- Buhler Ltd UK
- Burkert Fluid Control Systems UK
- Busing Co., Inc. United States
- C & P Engineering Services Ltd. UK
- C R Underhay and Partners UK
- C W Berndt Associates Ltd US
- C.C. Steven & Associates United States
- Calamo AB Sweden
- Callaghan Engineering Ireland
- Cambridge Filter Corp. US
- Camfil Farr US
- Canal Engineering UK
- CAREL France Sas France
- Carlo Gavazzi Automation Italy
- Carmetec AB Sweden
- Carrhart Building Services US
- Carrigaline Industrial Park Ireland
- Casella Measurement Ltd UK
- Cavara UK
- CCR Process Products Canada
- CCT Europe BV Netherlands
- CDC Packaging Corp. US
- CEI Cleanroom Manufacturing, Inc. United States
- CEL Components S.r.l Italy
- CERAM UK
- Ceris Engineering France
- Certification & Calibration Services, Inc United States
- CES Critical Environment Solutions UK
- CES Group US
- Cesstech Group Singapore
- CET Ingenierie France
- CETEP France
- Cfans Ltd UK
- cfes Ltd UK
- CH2M Hill US
- CHAD Industries US
- Challenger Avenue Malaysia
- Chapel Cleaning Machines UK
- Checkmate Fire Solutions UK
- Chemical Process Solutions Ltd UK
- Chempharm Industries India
- China Internal Contaminate Control Communion and Study China
- Chinese Contamination Control Society China
- CIRA Technologie France
- Class One Technology Inc. United States
- Clean Air Group UK
- Clean Air Products Corp. US
- Clean Air Technologies Ltd UK
- Clean Modules UK
- Clean Projects Ltd UK
- Clean Room Construction CRC UK
- Clean Room Depot Inc. US
- Clean Room Equipment UK
- Clean Room Garments Australia
- Clean Room Garments Pty. Ltd. Australia
- Clean Room Installation Services UK
- Clean Room Shop UK
- Clean-rooms.com US
- clean-tek AG Reinraumtechnik Switzerland
- Cleanroom Components UK
- Cleanroom Consultants & Certifications US
- Cleanroom Consulting & Distribution Inc. US
- Cleanroom Consulting Ltd UK
- Cleanroom Design and Construction CDC UK
- Cleanroom Equipment Ltd Ireland
- Cleanroom Filters & Supplies US
- Cleanroom Filters and Service India
- Cleanroom Industries Sdn Bhd Malaysia
- Cleanroom Management Associates Inc US
- Cleanroom Solutions Ltd UK
- Cleanroom Systems Belgium Belgium
- Cleanroom Technology Austria GmbH Austria
- CleanroomMart India
- Cleanrooms West Inc US
- cleanroomshop.com UK
- CleanWear Products Ltd. Canada
- Clearsphere Ireland
- Clima Plus France
- CMR Controls Ltd UK
- Coldhold Systems Ltd UK
- Cole Parmer UK
- Collins & Walton, Inc. United States
- Comark Instruments UK
- Comecer Italy
- Commercial Fit Out UK
- CompAir UK UK
- Concept Engineering Ltd UK
- Connect 2 Cleanrooms UK
- Connect Agility Ltd UK
- Containment Technologies Group Inc. US
- Containment Technology Ltd UK
- Controlled Enviroment Products, Inc US
- Controlled Environment Products US
- Controlled Environments Company Ireland
- Controlled Partitioning Solutions UK
- Coolmation Group UK
- Copley Scientific Ltd UK
- Copper Development Association UK
- Corium Solutions UK
- Coruba UK
- COTEBA - Artelia Group France
- CPL Filters UK
- CPT Services Ltd UK
- CPT Services Ltd UK
- Cravenmount Limited UK
- CRC Clean Room Competence GmbH Germany
- CriticalTool, Inc. US
- Crouzet Automatismes France
- CRT OY Cleanroom Tech FI
- CS Associates United States
- CTTM - Technology Transfer Centre of Le Mans France
- Culzean Medical Devices Ltd UK
- D L S Medical UK
- D&E Plastics Ltd UK
- D2 Cranes Netherlands
- Daifuku America Corporation United States
- Dallas Wiping Materials, Inc. United States
- Danish Society of Heating, Ventilating & Air-Conditioning Engineers Denmark
- Dart Valley Systems UK
- Dastex Reinraumzubehoer Germany
- David Ball Projects Ltd UK
- David Round, Inc. US
- Davis Bacon Material Handling, Inc. United States
- Dawtech US
- Delta Filtration Ireland
- DeltaTRAK Inc. United States
- Deltrian International SA Belgium
- Deluxe Systems, Inc. United States
- Derell Consultants UK
- Design Filtration Inc. Canada
- Devlin Electronics Limited UK
- Diagnostic Laminations Engineering United States
- Diamond Scientific UK
- Digital Air Control US
- Direct Instrument Hire UK
- Dixon Glass Ltd UK
- Docklands Systems Ltd UK
- DOHM Pharmaceutical Engineering Germany
- Doity Engineering UK
- DOP Solutions Ltd UK
- Doro AB Sweden
- DORTEK LTD UK
- Dos&Donts Srl Italy
- DPS Engineering Ireland
- DSM Functional Materials Netherlands
- DSSR Consulting Engineers UK
- Ductbusters UK
- DUEPERTHAL Sicherheitstechnik GmbH & Co. KG Germany
- Duffay France
- Dustraction Ltd UK
- Dycem Ltd UK
- Dyson Ltd UK
- E Klink A/S Denmark
- East Kilbride Industrial Plastics Ltd UK
- Eaton-Williams UK
- Ebara Precision Machinery Europe DE
- ECG EGERSIS Group Greece
- Economic Packaging & Cleanroom Supplies United States
- Ecophon UK
- Ecoproject Russia
- EcoTech Europe Ltd UK
- Edgetech US
- Egyptian Cleanroom and Contamination Control Society (ECCCS) Egypt
- Eizo Nanao Corporation Japan
- EKJ Radgivende Ingeniorer Denmark
- Electro Statics Inc. United States
- Elemental Research Inc. Canada
- Eliason Corporation US
- Elite Measurement Solutions UK
- Elma Electronic UK Ltd UK
- Emcel Filters Ltd UK
- EMPA Testmaterials Switzerland
- EMS Ltd UK
- EMTE Cleanroom Technology Spain
- EMTEK, LLC US
- Enbloc Ltd UK
- ENCO SRO Slovakia
- Encon Air Systems Limited UK
- Energy and Carbon Reduction Solutions Ltd UK
- Energy Cooling Systems Ltd UK
- Energy Efficiency Consultancy, EECO2 UK
- Engineered Abrasives US
- ENV Services Inc United States
- Envair Electrodyne Ltd India
- Enviro Technology Services PLC. UK
- Envirodoor Limited UK
- Envirofil Ltd UK
- EnviroMech Design Ltd UK
- Environmental Management & Services Ltd UK
- EP Roznov as Czech Republic
- Equal and Approved Ltd. UK
- ERG Air Pollution Control UK
- Erlab DFS US
- ERTEC France
- Eschmann Equipment Ltd UK
- Esco UK
- Eterna Lighting Ltd UK
- Ethox Corp. United States
- Eurobond Laminates Ltd Ireland
- Europanelli Cleanrooms India India
- Ewert GmbH & Co.KG Germany
- Exclusive Contract Furniture Ltd UK
- Exled Ltd UK
- Fab-Tech Inc. United States
- Farr Filtration Ltd UK
- Faure QEI France
- Felcon Ltd UK
- FH Chase Inc United States
- Fieldway Supplies UK
- Filamatic US
- Filtermax Filtration Services Ltd UK
- Filtermist International Ltd. UK
- Filtra Teknopak Cleanroom Systems Ltd. India
- Filtration Technology Inc. US
- Fireco UK
- Firecrest Heating Services Ltd UK
- Fischbach Luft und Ventilatorentechnik GmbH Netherlands
- Fisher Scientific UK Ltd. UK
- FL Dye US
- Flakt Woods Ltd. UK
- Flatiron Cleaning Company United States
- Flextraction Ltd. UK
- Flowcrete UK UK
- Flowquip UK
- Fluidic Ltd UK
- Fluke UK Ltd UK
- Foamtec International WCC Thailand
- Foramaflow Ltd UK
- Forbo Flooring UK Ltd UK
- Fort Vale Engineering UK
- Foster Wheeler AG Switzerland
- Fox Scientific, Inc. United States
- France Air France
- Franz Ziel GmbH Germany
- Freudenberg Filtration Technologies KG Germany
- Friedrich Sailer GmbH Germany
- FT Technologies UK
- Fukehai Technology Suzhou Co., Ltd. China
- G & K Services United States
- Galvani Clean Technology Italy
- GE Analytical Instruments US
- Geerpres, Inc. United States
- Gerflor Ltd UK
- Gibo Kodama Chairs US
- Gilcrest Group UK
- Giubiasco Forbo-Giubiasco SA Switzerland
- Glenco A/S Denmark
- Global Modular Systems US
- Goliath Footwear Ltd. UK
- Gordon Inc. United States
- Gramos Applied Ltd UK
- GranitiFiandre SpA Italy
- Grant Instruments UK
- Ground Zero Electrostatics United States
- Guangzhou KLC Purification Equipment Manufacturing Co Ltd China
- Guardline Technology UK
- Guth Lighting United States
- H&V COMMISSIONING SERVICES LTD UK
- Haas Precision Industries Inc. United States
- Halco Products Co. Inc United States
- Hansong KR
- Harland Johnston Ltd Ireland
- Hartco US
- Hartco, Inc United States
- Hartfelt & Co. Denmark
- Healthmark Industries Company Inc US
- Healvita Group GmbH Austria
- Heat Pipe Technology Inc. US
- Hecht Automatisierungssysteme GmbH Germany
- Hedback Quality Air, Inc. United States
- Helix Medical US
- Helsinn Group Switzerland
- Henderson Insulation Ltd UK
- Hepatest Inc United States
- Hiden Analytical - Isochema UK
- Highpak UK
- HiTech Controlled Environments UK
- Holden Installations Ireland
- Holland Contracts UK
- Honeywell US
- Howorth Air Technology UK
- Hoyles Electronic Developments UK
- Hughes Powers Co. United States
- Hunt Developments UK
- Hydronic France
- Hygiatech Services/DPA France
- IAB Reinraum-Produkte GmbH Germany
- IC Medical Vertriebgesellschaft Germany
- IDC CLEANROOMS LTD UK
- IDC Cleanrooms Ltd UK
- IGS (Europe) UK
- ILKAZELL Isoliertechnik GmbH Germany
- Imag'ing France
- Indtherm Ltd UK
- Industrial Noise Control Inc. United States
- INDUSTRIAS PERFUM SL SPAIN
- Innotech Productions US
- Inspectra Ltd Malta
- Institut de Recherche Microbiologique IRM France
- Instrument Technology Ltd Ireland
- Intech UK
- Intel Corporation US
- Inviron Ltd UK
- Ioan Science UK
- IPM Pharma (Integration Pharmaceutique Modulaire) France
- IPPN Measurements & Controls VOF Netherlands
- Iris Ceramica Italy
- Irish Cleanroom Society Ireland
- Irisys UK
- Isocab Belgium
- IsoCleanse Ltd UK
- ITW Richmond Technology United States
- J.M. Coull Inc. United States
- Jacob UK Limited UK
- Japan Air Cleaning Association (JACA) Japan
- Jasun Envirocare UK
- JCE BioTechnology France
- JCL Medical United States
- JetAHU Ltd. UK
- JS Humidifiers UK
- Kamen Wiping Materials Company, Inc United States
- Kathabar Systems, Division of Ross Air Systems United States
- Kays Medical UK
- KCS Cleanroom Systems BV Netherlands
- Kenall Manufacturing Co. US
- Kenelec Scientific Australia
- Kent Stainless Ireland
- KeyPlants AB Sweden
- Kiltox Damp Free Solutions UK
- Kimpton Flooring Company UK
- Kinetic Concepts Ltd UK
- Kleerdex Company LLC United States
- KNF Corporation US
- Komfort Office Environments UK
- Korea Air Cleaning Association (KACA) Korea (South)
- Krauss Maffei Germany
- KTEC Cleanroom Systems United States
- KUKA Roboter GmbH Germany
- Kyodo-Allied Industries Ltd Singapore
- L B S Group UK
- LA.SER Clean Rooms Italy
- Lab Fabricators Co. United States
- Lab Furnishings Ltd UK
- Lab Furniture Installations & Sales United States
- Labcaire Systems Ltd UK
- LaboGene ApS Denmark
- Labotrade Spain SL Spain
- Lacy Construction United States
- LAF Technologies Pty Ltd Australia
- Lamarflo Systems UK
- Laminar Flow Systems UK
- Lancaster Laboratories Inc US
- Laserlenz Calibration Services United States
- Leadbitter Group UK
- Leaderflush Shapland UK
- Leading Innovative Products & Solutions, Inc. United States
- Leister Process Technologies Switzerland
- Leuze Electronic Germany
- Lextar Electronics Corporation Taiwan
- Light Fabrications, Inc. United States
- Loemat GmbH Germany
- Longford Cleaning & Maintenance Ltd UK
- Lonza's MODA Solution US
- Losinger Construction AG Switzerland
- LTE Scientific Ltd UK
- Lucisbio France
- Lugaia Switzerland
- Lumalier Corporation US
- LumenOptix US
- Luvata Finland
- Luwa CH
- Lym-Tech Scientific United States
- Lynbond 2000 Ltd UK
- Lytzen A/S DENMARK
- M.C. Air Filtration Ltd UK
- Mach-Aire Ltd UK
- MagneMotion Inc United States
- Malvern Instruments Ltd UK
- Man Lift Manufacturing Co (MLE) US
- Mapa AdvanTech US
- Maplin Mechanical Services Ltd. UK
- Marken Services UK
- MAST - Makro Air System Technology Turkey
- Masy Systems, Inc. US
- Matrix UK
- Max Peter Reinraumtechnik Germany
- Maxcess Aluminium Floors Inc United States
- MayAir International China
- Meaco Measurement and Control Solutions UK
- Medical Air Technology Ltd UK
- MEI, LLC United States
- Memsstar UK
- Mentor Graphics UK
- Meridian Medical Ltd UK
- Merit Merrell Technology UK
- METRON TECHNOLOGY LTD UK
- Mettler Toledo UK
- Micro Identification Technologies US
- Microban International Ltd US
- Micron Metrology 2000 Ltd. UK
- Micronova Manufacturing US
- Milholland & Associates US
- Milliken & Co. United States
- Mills Industries US
- Minntech BV Netherlands
- Minuteman International Inc United States
- MLR Soft GmbH Germany
- MLU Group Austria
- MODUSPACE Inc Canada
- Moll Medical div. Of Moll Industries Inc. United States
- Monmouth Scientific UK
- Montage Design UK
- Morgan Sindall Professional Services UK
- Mott Corporation United States
- MRC Systems UK
- MRS Industries United States
- MSA AUER GmbH Germany
- MTD Micro Molding US
- MTL Instruments UK
- MTX Contracts Ltd UK
- MukherjeeEngineers India
- Muovilami OY Finland
- Nabell USA Corp. United States
- Nanologix Inc US
- National Partitions & Interiors, Inc. United States
- Nergeco France
- Newport Corporation United States
- NGS Cleanroom Solutions Limited UK
- Nilfisk - Advance Ltd UK
- Nilfisk Advance America Inc United States
- NOAL Measurement & Control France
- Northern Lipids Inc. Canada
- Norwood Partition Solutions Ltd UK
- Noveko International Inc. CA
- NSP America Inc. United States
- Officine Ceccacci Italy
- Omega Engineering Ltd. UK
- Omley Industries, Inc. US
- ONeill Engineered Systems, Inc. United States
- Oxoid Limited UK
- P H Services Ltd UK
- PAC Foam Products Corp. United States
- Pacific States Felt & Mfg. Co., Inc. United States
- Palbam Class Israel
- Panel Projects Ltd UK
- Parker Environmental Services Ltd UK
- Parsons Brinckerhoff US
- PARTECO srl Italy
- Particle Measurement Technology Co. US
- Particle Measuring Systems US
- Patriot Welding & Fabrication United States
- Paxton Products US
- pbn Electronics Vertriebs GmbH Germany
- PBR Industries United States
- PBSC UK
- Pearce Stainless CA
- Pegasus Cleanroom Services US
- Pennsylvania Wiping Materials Co. United States
- PEP Plastic Engineered Products Co. United States
- Perma-Pipe, Inc. United States
- PharmaCleanse UK
- Pharmadec France
- Pharmadule AB Sweden
- Pharmagraph UK
- PharmaServices International Limited UK
- Philips Electronics Netherlands
- PhoeniX Software Netherlands
- Plascore Europe Germany
- Plascore, Inc. US
- Pneu-Technology Ltd UK
- PolySto Belgium
- Portakabin UK
- Powell Products, Inc. US
- Power and Data Corporation Pty Ltd Australia
- Powershield Doors Ltd Ireland
- Precise Air Conditioning Ltd UK
- Precision Cleanrooms Ltd UK
- Precision Fabrics Group Inc United States
- Pressure Systems UK
- Primarius Ltd UK
- Princeton Instruments US
- Proclea srl Italy
- ProCleanroom Belgium
- Production Design and Supply Ltd UK
- Progen Scientific Ltd UK
- ProPharma Group United States
- Prosser Flooring UK
- Public Relations Consultancy UK
- Purafil US
- Pure Humidifier Co. United States
- Qosina US
- QTC Co. US
- Quest International UK Ltd UK
- R&D Ventilation Systems Ltd UK
- R&R Lotion Inc United States
- R3 Nordic Sweden
- rap.ID Particle Systems GmbH Germany
- RathGibson United States
- RB Scientific UK
- RDM Industrial Products, Inc. United States
- Record 316 Ltd UK
- Reinraumtechnik Ulm Germany
- Remat & Partners bvba Belgium
- Remploy Filters UK
- Ribble Enviro Ltd. UK
- Rich-Tek Cleanroom Systems China
- Ring Communications (UK) Ltd UK
- Rittal Ltd UK
- Robatherm GmbH + Co. KG Germany
- Roll-O-Matic® “Advanced Technology” Cleaning Tools US
- Romanian Association for Prevention, Study and Contamination Control Romania
- Rotan GmbH Germany
- Roxtec Sweden
- S&M Electronics Ltd UK
- S-Lab UK
- S.T.C. France
- Safety Industries Oakwood Ltd UK
- Safety Shop Direct Ltd UK
- Safetygrating UK
- Sagicofim Italy
- Sandvik Materials Technology Sweden
- Savekers Ltd UK
- SC Cabinets UK
- Science Exchange UK
- Scottish Society for Contamination Control UK
- SE Cleanrooms US
- Seal Shield US
- Sealco United States
- Sekisui Chemical GmbH Germany
- Servicor Inc. US
- SGM Projects UK
- Shenzhen Maxclean Industrial Co., Ltd China
- Shenzhen Selen Science & Technology Co Ltd China
- Shinsung Eng Co., Ltd United States
- Showa France
- Showers and Eyebath Services Ltd UK
- Sigma Supply, Inc. United States
- Sika Services AG Switzerland
- SimPlan AG Germany
- SIN & STES Groupe Elior France
- Singapore India Trade Resources Company India
- SLKB - Saarbruecken Luftkanalbau Germany
- SmartGlass Medical Ltd UK
- SMC air KR
- SMG Cleanroom Technologies US
- SNC Lavalin Engineering & Technology PVT Ltd India
- SNC-Lavalin Pharma SPRL Belgium
- Sofchem France
- Solite Europe UK
- SOMETA GmbH Germany
- South West and National Ventilation Ltd UK
- Southern Environmental Air, Inc. United States
- Southern Group Laboratory UK
- Space-Ray United States
- Spaceway South Ltd UK
- Specialized Engineering Services Pakistan
- Specialized Plant Engineering Ltd UK
- SpecialTeam Medical Services Inc. United States
- Specialty Operations Solutions Inc US
- Specific Environments UK
- Spectrum Thin Films Corporation United States
- Stanley Supply & Services US
- STAXS Belgium
- STC - Controlled Environment Engineering France
- Steljes Ltd UK
- Steril-Aire US
- Steris Corporation US
- SteriTouch Limited UK
- Stern & Stern Industries, Inc. United States
- Stertil UK Ltd UK
- Stoneleigh UK
- Stonhard US
- Stonhard UK Ltd UK
- Sumitomo (SHI) Demag Plastics Machinery GmbH Germany
- Superior Laboratory Services US
- Surgical Technologies Inc. United States
- Suzhou Glory Exhibitions China
- TA and A Ultra Clean Technology Co Ltd China
- TAG Egypt
- TBH Germany Germany
- Te Tech LLC United States
- Tech Systemes France
- Techni Brume Diffusion - TBD France
- Technical Equipment Sales, Inc. United States
- Technical Safety Services Inc. United States
- Technickon Ltd UK
- Techniconsult Firenze SRL Italy
- TechniVal UK
- Technofil B.V. Netherlands
- Technovation Systems US
- Tecomak Environmental Services UK
- Teknomek Ltd UK
- Tennant Cleaning Solutions UK
- Terra Universal US
- Texas Technologies US
- The Austin Company of UK Ltd UK
- The Carpenter Group United States
- The Deep Cleaning Company UK
- The Trading Solutions Company Limited UK
- Thermaco Ltd UK
- Thermal Detection Ltd UK
- Thermal Energy International CA
- Thermalair Inc. United States
- Thor Tarp United States
- THRISLINGTON PRODUCTS LTD UK
- Titan Products UK
- TMP Northern Ltd UK
- Tomoe Valve Co Ltd Japan
- TOP Service Czech Republic
- Tor Coatings UK
- Total Facility Solutions US
- Total Source Ltd Ireland
- Total Source Manufacturing US
- Trespa International B.V. Netherlands
- Trion - Ruskin Air Management UK
- Triple Air Technology UK
- Trox UK Ltd UK
- Trumpf inc US
- TSI Instruments US
- Ultra Clean Technology US
- UltraTape US
- UltraTape Delphon US
- UniClean Cleanroom Services US
- Unifil AG Filtertechnology Switzerland
- Unique Instruments United States
- Unitair France
- United Metal Products United States
- United Partition Systems, Inc. United States
- Universal Cooling UK
- UV Flu Technologies US
- UV Light Technology UK
- UVO3 Ltd UK
- Vaisala Oyi Finland
- Validair (Euro) Ltd UK
- Validair Engineers India
- Van der Stähl Scientific United States
- Vanaire United States
- VEGA Environmental Consultants Ltd UK
- Veltek Associates Inc. US
- Vigilair Systems US
- VINCI UK
- Vokes Air Sweden
- Walex Products Company Inc US
- Walker Pack Ltd UK
- Weaver Technologies US
- Welvent Ltd UK
- Western Environment Corp. United States
- WH Partnership Ltd UK
- WIKA Alexander Wiegand SE & Co. KG Germany
- Wujiang Shenda Cleanroom Lighting Co Ltd China
- Yamada America Inc United States
- Yonkers Industries US
- Yorkon Portakabin UK
- Zandair AB Sweden
- Zander Scientific US
- Zaytran United States
- Zenit SK Slovakia
- ZF Electronics UK UK