Quick answer: the top-ranked optical fiber tester manufacturers in China on this list are Grandway (Shanghai), ShinewayTech (Beijing) and OFW (Zhejiang). 3 Chinese manufacturers are ranked by registration, contact and product data; 10 companies are listed in total. Updated 21 Oct 2026.
Ranked optical fiber tester manufacturers
How this list is ranked- 01
Grandway
光维通信Grandway
- Optical fiber testers
- Optical time-domain reflectometers
- Optical attenuators
Registered legal entity on file; email and phone published; operating since 1994.
View profile → - 02
ShinewayTech
信维科技ShinewayTech
- Optical fiber testers
- Optical time-domain reflectometers
- Optical attenuators
Registered legal entity on file; email and phone published; operating since 2002.
View profile → - 03
OFW
OFW
- Optical fiber testers
- Optical time-domain reflectometers
Registered legal entity on file; email published; operating since 2004.
View profile →
International optical fiber tester brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
EXFO EXFO
Registered as 爱科斯福通信技术(北京)有限公司 in 2015.
- Optical fiber testers
- Optical time-domain reflectometers
- Optical attenuators
- Network cable testers
Why it ranks here: registered legal entity on file; phone published.
- INT
Fluke Networks Fluke Networks
Registered as 福禄克测试仪器(上海)有限公司 in 2001.
- Optical fiber testers
- Cable tracers
- Network cable testers
Why it ranks here: registered legal entity on file; phone published.
- INT
VIAVI VIAVI
Registered as 唯亚威通讯技术(北京)有限公司 in 2009.
- Optical fiber testers
- Optical time-domain reflectometers
- Optical attenuators
Why it ranks here: registered legal entity on file; phone published; operating since 1979.
- INT
YOKOGAWA YOKOGAWA
Registered as 横河电机(中国)有限公司 in 1985.
- Optical fiber testers
- Digital oscilloscopes
- Differential pressure transmitters
- Optical time-domain reflectometers
- Optical attenuators
- Pressure transmitters
Why it ranks here: registered legal entity on file; phone published; operating since 1915.
- INT
VeEX VeEX韦克斯
Registered as 威克斯通讯技术(成都)有限公司 in 2012.
- Optical fiber testers
Why it ranks here: registered legal entity on file; email published; operating since 2006.
More Optical fiber testers manufacturers and brands
| Brand | Registered company | Website |
|---|---|---|
| AFLAFL | 欧博通信(深圳)有限公司 | aflglobal.com |
| AnritsuAnritsu安立 | 安立通讯科技(上海)有限公司 | anritsu.com |
Comparison table
| # | Company | Province | Est. | Registered company |
|---|---|---|---|---|
| 01 | Grandway光维通信Grandway | Shanghai | 1994 | 上海光维通信技术股份有限公司 |
| 02 | ShinewayTech信维科技ShinewayTech | Beijing | 2002 | 北京信维科技股份有限公司 |
| 03 | OFWOFW | Zhejiang | 2004 | 浙江信测通信股份有限公司 |
Frequently asked questions
How many optical fiber testers manufacturers and suppliers in China are listed here?
10 companies are listed for optical fiber testers (光纤测试仪). 3 Chinese manufacturers have full profiles and are ranked; 5 international brands with China operations are listed separately.
Where are China's optical fiber testers manufacturers located?
Among profiled companies: Shanghai (3), Beijing (3), Zhejiang (1), Sichuan (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, 10 have an official website and 4 publish an email address.