| ACM Limited |
| Advantica |
| AFAQ - EAQA Ltd |
| AGR Certification Limited |
| AIB International Limited |
| AJA Registrars Europe srl |
| AJA
Registrars Ltd |
| Allied Technical Centre |
| AMTAC
Certification Services Ltd |
| AMTRI
Veritas Ltd |
| APM Group Limited, The |
| Arrowhead Industrial Services Limited |
| Ascisco Ltd |
| ASTA BEAB Certification Services |
|
| BABT
|
| BASEEFA (2001) Ltd
|
| Blue Flame Certification Limited |
| BM
TRADA Certification |
| BPEC
Certification Limited |
| BRE
Certification Limited |
| British
Approvals Service for Cables (BASEC) |
| British
Board of Agrément |
| British
Inspecting Engineers Limited |
| British
Institute of NDT |
| BSI (British Standards Institution) |
| Buildcert Limited |
| BVQI UK Ltd |
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| Central
Certification Service Ltd (CCS) |
| Centre for Assessment Limited |
| Cert ID Europe Ltd |
| Certification and Timber Grading Limited |
| Certification Centre, Latvian Academy of Sciences |
| Certification Europe Limited |
| Certification
International (UK) Ltd |
| Chamber
Certification Assessment Services Ltd |
| China Certification Center Inc |
| China Classification Society Quality Assurance Ltd |
| CITB-Construction Skills |
| CMi Certification |
| Communications-Electronics
Security Group (UK IT Security Evaluation and Certification Scheme)
|
| Complete Integrated Certification Services Limited (CICS) |
| Consortium for Automotive Registration Services (Quality Assurance) Limited (CARS QA)
|
| CORGI Certification Limited |
|
| D.A.S
Certification Limited |
| DNV Certification Limited |
|
| Eagle Certification Limited |
| East Midlands Quality Centre Limited, The |
| ECOCERT Limited |
| EFSIS |
| Epsilon Compliance Services Limited |
| ERM
Certification & Verification Services Ltd |
| Ernst & Young et Associates |
| European Inspection & Certification Company SA |
| European
Quality Assurance (EQA) Ltd |
| European
Registration Scheme for Personnel Competence |
|
| FoodCheck Limited |
| Food
Certification (Scotland) Limited |
|
| GASTEC Certification BV |
| Global
Certification Ltd (GCL) |
| GSL UK Ltd (trading as Charter Mark Assessment Services) |
| Guardian Independent Certification Limited |
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| Health Quality Service, The |
| Hong
Kong Quality Assurance Agency |
|
| ICS Registrars Limited |
| IFC Certification Ltd |
| IMS
International Limited |
| Independent
European Certification Limited |
| INSPEC
International Ltd |
| Institution of Railway Signal Engineers |
| International Certification Assessment Services Company Ltd (ICASY) |
| International Certification Services Limited |
| International Supplier Auditing bv |
| Intertek Testing & Certification Limited |
| Intertek Testing Services (Leicester) Ltd |
| Intertek Testing Services NA, Inc |
| ISOQAR
Ltd |
|
| Japan
Audit and Certification Organization for Environment and Quality
|
| Japan Audit and Certification Organization for Information Security
|
| Japan
Quality Assurance Organisation |
| Japanese
Standards Association |
|
|
Knight International Inspectorate |
|
KPMG Audit plc |
|
| Lawlabs Limited |
| Legal
Services Commission |
| Lloyd's
Register Quality Assurance Ltd (LRQA) |
| Logic Certification Limited |
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| Maritime & Coastguard Agency |
| Marketing
Quality Assurance Ltd (MQA) |
| Micron2 |
| Moody
International Certification Ltd |
| Mutuagung Lestari Quality Assurance (MALQA) |
|
| National Britannia Certification Limited
|
| National
Inspection Council for Electrical Installation Contracting
|
| National
Quality Assurance Ltd (NQA) |
| National
Security Inspectorate (NSI) |
| National Standards Authority of Ireland |
| National
Weights and Measures Laboratory |
| NIC Certification Limited |
| Northern Foods Technical Services Site Certification Limited
|
| Northen Ireland Food Chain Certification (NIFCC)
|
|
| Ocean Certification Limited |
| Organic Food Federation |
|
| Perry
Johnson Registrars, Inc |
| PricewaterhouseCoopers Certification B.V. |
| Print and Media Certification Ltd |
| Product
Authentication International |
|
| QA_Cert Limited |
| QA
International Certification Ltd |
| Quality
& Environmental Certification Ltd |
| Quality
Scheme for Ready Mixed Concrete, The (QSRMC) |
| Quality Service Standards Limited |
| Quality
Welsh Food Certification Limited |
|
| Rail
Industry Quality Certification Ltd |
| Renault Institute of Quality Management Limited (trading as Institute Assessment and Certification) |
| Rina S.P.A. |
| Royal and Sun Alliance Certification Services |
| Royal Society for the Promotion of Health |
|
| SATIVA - Desenvolvimento Rural, Lda |
| SATRA
Quality Assurance Ltd |
| Scottish
Food Quality Certification Limited |
| Security Systems and Alarms Inspection Board |
| SGS United Kingdom Limited
|
| SIRA
Certification Service |
| SIRIM
QAS Sdn. Bhd. |
| SITA Trading as IDEST |
| Soil Association Certification Ltd |
| Steel
Construction Certification Scheme Ltd |
| Support, Training & Services plc |
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| Thomson Praxis Ltd |
| Training and Quality Services, University of Huddersfield |
| TUV
UK Quality Assurance Ltd |
| TWI
Certification Ltd |
|
| UK
Certificating Authority for Reinforcing Steels (CARES) |
| UK Certification Limited |
| Underwriters
Laboratories Inc |
| United
Registrar of Systems Ltd (URS) |
| Universal Certification Service Co Ltd |
|
| Vehicle
Certification Agency (VCA) |
|
| Warrington Certification Ltd |
| World
Certification Services Ltd |
| Worldwide Quality Assurance |
|
| Zhejiang Gainshine Assessment Co Ltd |
| Zhongjian Certification Co., Ltd (Trading as GZCC) |
|