Quick answer: the top-ranked iso certification organization brands in China on this list are CQM (Beijing), Intertek (Guangdong) and SGS (Beijing). 3 Chinese brands are ranked by registration, contact and product data; 10 companies are listed in total. Updated 21 Oct 2026.
Ranked iso certification organization brands
How this list is ranked- 01
CQM
方圆认证CQM
- ISO certification organizations
- Certification organizations
- 3C certification organizations
Registered legal entity on file; email and phone published; operating since 1991.
View profile → - 02
Intertek
Intertek
- ISO certification organizations
- Certification organizations
- Environmental Management Certification
Registered legal entity on file; email and phone published; operating since 1885.
View profile → - 03
SGS
SGS通标
- ISO certification organizations
- Certification organizations
- Environmental Management Certification
Registered legal entity on file; email and phone published; operating since 1878.
View profile →
International iso certification organization brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
BSI BSI英标
Registered as 英标管理体系认证(北京)有限公司 in 2002.
- ISO certification organizations
- Certification organizations
- Environmental Management Certification
Why it ranks here: registered legal entity on file; email and phone published; operating since 1901.
- INT
CQC 中国质量认证中心CQC
Registered as 中国检验认证(集团)有限公司 in 1987.
- ISO certification organizations
- Certification organizations
- 3C certification organizations
- Environmental Management Certification
Why it ranks here: registered legal entity on file; email and phone published.
- INT
Tuv Nan De TÜV南德
Registered as 南德认证检测(中国)有限公司 in 1998.
- ISO certification organizations
- Certification organizations
- Testing organizations
Why it ranks here: registered legal entity on file; email and phone published; operating since 1866.
- INT
BureauVeritas BureauVeritas必维
Registered as 必维认证(北京)有限公司 in 2003.
- ISO certification organizations
- Certification organizations
- Environmental Management Certification
- Environmental Testing Companies
- Testing organizations
Why it ranks here: registered legal entity on file; phone published; operating since 1828.
- INT
VRheinland TüVRheinland莱茵
Registered as 莱茵技术(上海)有限公司 in 1995.
- ISO certification organizations
- Certification organizations
- Environmental Management Certification
- Testing organizations
Why it ranks here: registered legal entity on file; phone published; operating since 1872.
More ISO certification organizations brands and companies
| Brand | Registered company | Website |
|---|---|---|
| CTI华测检测CTI | 华测检测认证集团股份有限公司 | — |
| CVC威凯CVC | 威凯认证检测有限公司 | — |
Comparison table
| # | Company | Province | Est. | Registered company |
|---|---|---|---|---|
| 01 | CQM方圆认证CQM | Beijing | 1991 | 方圆标志认证集团有限公司 |
| 02 | IntertekIntertek | Guangdong | 1885 | 深圳天祥质量技术服务有限公司 |
| 03 | SGSSGS通标 | Beijing | 1878 | 通标标准技术服务有限公司 |
Frequently asked questions
How many iso certification organizations manufacturers and suppliers in China are listed here?
10 companies are listed for iso certification organizations (ISO认证机构). 3 Chinese manufacturers have full profiles and are ranked; 5 international brands with China operations are listed separately.
Where are China's iso certification organizations manufacturers located?
Among profiled companies: Beijing (5), Shanghai (2), Guangdong (1).
How is this list ranked?
By the completeness and verifiability of each company's data: a registered legal entity, an official website, published contact details, a product range and company history. The rank is not a quality rating, and no company pays for its position. See How we rank for the full method.
How do I contact these manufacturers?
Each listing shows the company's official website and, where published, its email and phone number. Of the 10 companies listed, 8 have an official website and 6 publish an email address.