Quick answer: the top-ranked photoelectric sensors and switches manufacturer in China on this list is SICK (Guangdong). 1 Chinese manufacturers are ranked by registration, contact and product data; 10 companies are listed in total. Updated 21 Oct 2026.
Ranked photoelectric sensors and switches manufacturers
How this list is ranked- 01
SICK SICK西克
Registered as 广东西克智能科技有限公司 in 2002.
- Encoders
- Pull-cord switches
- Industrial code readers
- Proximity switches
- Safety light curtains
- Photoelectric sensors and switches
Why it ranks here: registered legal entity on file; email and phone published; operating since 1946.
International photoelectric sensors and switches brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
Omron Automation OMRON欧姆龙自动化 Full profile
Relays / Industrial sensors / Controllers.
- Relays
- Industrial sensors
- Controllers
- Drives
- Industrial robots
- Safety equipment
Why it ranks here: registered legal entity on file; phone published; operating since 1933.
- INT
Panasonic Industry 松下电器机电 Full profile
Relays / Electronic components / Electronic materials.
- Relays
- Electronic components
- Electronic materials
- Batteries
- Industrial automation equipment
Why it ranks here: registered legal entity on file; phone published.
- INT
Autonics Autonics奥托尼克斯
Registered as 奥托尼克斯电子(嘉兴)有限公司 in 2002.
- Proximity switches
- Photoelectric sensors and switches
- Industrial temperature controllers
- Voltage regulators
Why it ranks here: registered legal entity on file; email and phone published; operating since 1977.
- INT
BALLUFF BALLUFF巴鲁夫
Registered as 巴鲁夫自动化(上海)有限公司 in 2003.
- Proximity switches
- Limit switches
- Photoelectric sensors and switches
- Displacement sensors
Why it ranks here: registered legal entity on file; email and phone published; operating since 1921.
- INT
ifm ifm易福门
Registered as 易福门电子(上海)有限公司 in 2005.
- Proximity switches
- Flow switches
- Photoelectric sensors and switches
- Flow sensors
- Pressure switches
Why it ranks here: registered legal entity on file; email and phone published; operating since 1969.
- INT
KEYENCE KEYENCE基恩士
Registered as 基恩士(中国)有限公司 in 2001.
- Industrial code readers
- Proximity switches
- Machine vision
- Industrial cameras
- Safety light curtains
- Photoelectric sensors and switches
Why it ranks here: registered legal entity on file; email and phone published; operating since 1974.
- INT
PEPPERL+FUCHS PEPPERL+FUCHS倍加福
Registered as 倍加福(上海)自动化有限公司 in 2006.
- Encoders
- Proximity switches
- Photoelectric sensors and switches
- Fiber-optic sensors
- Vision sensors
Why it ranks here: registered legal entity on file; email and phone published; operating since 1945.
- INT
BANNER BANNER邦纳
Registered as 邦纳电子(苏州)有限公司 in 2003.
- Safety light curtains
- Photoelectric sensors and switches
- Fiber-optic sensors
- Displacement sensors
- Vision sensors
Why it ranks here: registered legal entity on file; phone published; operating since 1966.
- INT
Leuze Leuze劳易测
Registered as 劳易测传感器技术(深圳)有限公司 in 2006.
- Photoelectric sensors and switches
- Fiber-optic sensors
Why it ranks here: registered legal entity on file; email and phone published; operating since 1963.
Frequently asked questions
How many photoelectric sensors and switches manufacturers and suppliers in China are listed here?
10 companies are listed for photoelectric sensors and switches (光电传感器/开关). 1 Chinese manufacturers have full profiles and are ranked; 9 international brands with China operations are listed separately.
Where are China's photoelectric sensors and switches manufacturers located?
Among profiled companies: Shanghai (5), Guangdong (2), Zhejiang (1), Jiangsu (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 7 publish an email address.