the following are the top manufacturing companies in china :

1. Jiangsu Jianlong Electrical CO LTD
2. Zhejiang Zhengyan Electric Co. Ltd
3. Changzhou ITC Power Equipment Manufacturing Co. Ltd
4. Fuan Longkai Power Co. Ltd
5. Fujian Firstall Power Technology Co. Ltd
6. MPMC Powertech Corp
7. Shanghai Fortrust Power Electric Co. Ltd
8. Lambert Engine Co. Ltd
9. AGG Power Technology (Fuzhou) Co, Ltd
10. Beijing Sojo Electric Co Ltd
11. Guangzhou DSPPA Audio Co. Ltd
12. Zhengzhou Hejin Metal Material Co. Ltd
13. Zhejiang Tianqi Electric Co. Ltd
14. Wuxi Dingol Alternator Co. Ltd
15. hangzhou hikvision digital technology co
16. Luoyang Kunyao Metal Material CO. Ltd
17. Fuzhou GFF KEYPOWER Equipment Co. Ltd : is a leading company with years of experience in both developing and manufacturing generator set, load bank and diesel pump set.
18. JIANGSU RELIABLE INDUSTRY CO. LTD (RLB)
19. Shanghai Liancheng (Group) Co. Ltd is a domestic well-known large group enterprise and its multi-operations cover the research and production of pump, valve and fluid transportation system, electronic control system and environmental protection equipment.
20. Fangyuan Valve Group Co. Ltd is an international leading manufacturer of valves in the world.
21. Jinliang Valve Co. Ltd
22. Zhejiang Tehorn Valve Co. Ltd is specialized in producing valves, ball, precision casting, the company is a set design, development, production of high-tech valve enterprises.
23. Laizhou dongsheng valve co. ltd is a professional valve plant, is a collection of research and development, design, the manufacture, the sale of integrated specialized company.
24. Shangzheng Valve Group Co Ltd is a leading valves manufacturer in china
25. ZheJiang MZC Valve Co Ltd. is specialized in designing and manufacturing Stainless Steel& Carbon Steel Floating Threaded Ball Valves,Flanged End Ball Valve,Gate Valve,Globe Valve,Check Valves and pipe fittings.
26. Wenzhou Xindeli Valves Co. Ltd is a modern enterprise integrating research and development, design, manufacture and sales of stainless steel and carbon steel valves
27. Zhejiang Wod Valve Co. Ltd is a manufacturer engaged in research, design, production, marketing, independent import and export, customs declaration, and inspection of industrial Valve .
28. SLV–Jiangsu Shoulong Valve Co. Ltd is a comprehensive enterprise engaged in research&development,production, sales and import&export of automatic control valves .
29. YUHUAN HEAPE VALVE Co,.Ltd is a leader Valve and pipes manufacturer in China
30. Yongchuang solenoid valve Co.Ltd. is one of a leading technical company specialized in researching and manufacturing industrial and small home appliances solenoid valves.
31. Zhejiang RST Valve Technology Co. Ltd is an innovative high-tech key enterprise integrating R&D, design, production, sales and service in Valve industry .
32. Yuzheng Wenzhou Yuzheng Valve Co. Ltd is a leading Valves manufacturer provide high quality products at competitive prices with expert and friendly service.
33. ZHEJIANG WONSTON VALVE CO. LTD is a high qualified manufacturer of valves-specializing in ball valves,gate valves,globe valves,swing check valves, y-strainers .
34. Zhejiang BaoShiJia Valve Co. ltd is designer,manufacturer of industrial valve.
35. Zhejiang Jewelry Fluid Valve Co. Ltd is a modern enterprise engaged in producing high, medium and low pressure ball valves, integrating research, development, production, sale, etc
36. ZHEJIANG WENBAO VALVE CO. LTD is a professional valves, pipe fittings food research and manufacturing enterprises,
37. Zhejiang Ouming Fluid Casting Industry Co. Ltd is professional manufacture of valves, pipe fittings, castings and other fluid system equipments, including ball valves, gate valves, globe valves, check valves, diaphragm valves, Plug valves, sanitary butterfly valve, elbows, tees, union and other pipe fittings.
38. Zhejiang Naibang Valve CO. LTD is a professional valve manufacturer integrating design, technical development, produce and sale service, has a solid strength and rich production experience.
39. Zhejiang Lonze Valve Co Ltd is a valve company which integrates Researching, manufacturing, designing,sales and after services as a specialized unit.
40. ZHEJIANG DECA CONTROL VALVE METER CO. LTD is one of leader Valves manufacturers in China
41. ZHEJIANG COTECH VALVE CO. LTD provide high performance check valves for petroleum, chemical engineering, metallurgy, light industry
42. WENZHOU AEA VALVE CO. LTD is a manufacturer of world-class industrial valves.
43. TAIZHOU XINGNUO TECHNOLOGY CO. LTD Is specialized in producing and developing brass valves ,fittings and heating system products.
44. ANHUI SUNVAL INTERNATIONAL CO. LTD is one of China’s well-known Valves Manufacturing and Exporting Company.
45. Guangzhou Video-Tech Electronics Co. Ltd specialize in the R&D, production and sale of video door phones.
46. keytop parking inc
47. Shenzhen VIANS Electric Lock Co. Ltd was established in 2007, is a professional manufacturer of security lock products, mainly produces magnetic locks, electric locks, cathodic locks, motor locks, electric lock stents, automatic door opener, And other products. 
48. Zhejiang Dahua Technology Co. Ltd . (Dahua Technology) is a world-leading video-centric smart IoT solution and service provider as on of top cctv manufacturers in china.
49. zhejiang uniview technologies co. ltd is the pioneer and leader of IP video surveillance.
50. Kedacom international pte ltd as a leading provider of video products and relevant solutions, is committed to video conference, video surveillance and various video solutions to help public and corporate customers improve communication and management efficiency.
51. hangzhou hikvision digital technology co. ltd is a world leading IoT solution provider with video as its core competency. Featuring an extensive and highly skilled R&D workforce, Hikvision manufactures a full suite of comprehensive products and solutions for a broad range of vertical markets.
52. vandsec electronics limited is a security and investigations company
53. Sysvideo camera is a professional high definition IP cameras & NVR(network video recorder, network DVR) developer, manufacturer and IP surveillance total solution provider in China.
54. Longse Technology  Limited is a professional IOT (Internet of Things) solution provider with video as the core, providing security, visual management and big data service for the world.
55. Zhejiang Zhaosheng Technology Co. Ltd founded in 2011,as the leading image core algorithm with the national patented technology .
56. Shenzhen Anboson Industries Co. Ltd Dedicated to delivering reliable and innovative internet of Things(LoT) solutions, ANBOSON is a professional manufacturer focusing on R&D, production and sales of various cutting-edge video surveillance products.
57. Changzhou Zuoan Electronics Co. Ltd is an industry-leading manufacturer of explosion proof camera security system for Extreme area, like Hazardous Areas at coal mine(I), Marine(with high corrosive salt), offshore, Oil & Gas and industrial locations (IIB and IIC). 
58. Ningbo Peasway Electronics Co Ltd is a professional design and manufacturing company of fire and security alarm products, with years of experience in developing and manufacturing high quality fire and security alarm products.
59. CiXi HongChang Electronic Co Ltd specialize in manufacturing sirens and acoustic components which are exported to worldwide markets.
60. Numens Ambest Electronics Co. Ltd is an established supplier of professional safety products for fire detection and alarm systems.
61. Ningbo Sentek Electronics Co. Ltd is a reputable Fire and Security Detection manufacturer in the China.
62. Huadong Cable Group is a joint stock enterprise, integrated in cable production, research & development,and domestic & international trade
63. shanghai echu wires & cables co Ltd (ECHU) is an advanced manufacturer integrating production, sales and service together. specialize in developing and manufacturing PVC wires and cables.
64. china sanew cable co Ltd is a professional enterprise manufactures various kinds of wires and cable, which are burning resistant, high temperature resistant, anticorrosion, and aging defensive.
65. Shenzhen Lilutong Technology Industry Co. LTD. is a professional manufacturer for security cables in China
66. Zhejiang Tianjie Industrial Corp is a technique innovative enterprise that covers product’s developing, manufacturing and marketing, and is specialized on physical foam and all kinds of cables
67. AOK LED Light Specialized in outdoor and industrial lighting , high-temperature lighting solutions, solar energy, and intelligent control system
68. CDN Lighting is complete lighting solution provider
69. LUMBENCY LIGHTING (GZ) CO. LTD provide architectural lighting solution and products for indoor and outdoor lighting applications.
70. NVC Lighting is a well-known lighting manufacturer in China and around the world.
71. OPPLE Lighting Co. Ltd is a leading integrated LED lighting manufacturer in China.
72. Guangdong PAK Corporation Co. Ltd is a major supplier of energy efficient lighting products and solutions to the world’s most diverse markets
73. Inbrit Solar Lighting Co Ltd is One of the few manufacturers in China who can produce all the main parts of solar street light by itself, including solar panel, gel battery, lighting pole, controller and led lamp
74. Alite Co. Ltd is a leading edge manufacturer of LED lighting industry.
75. LightAge Tech Co. Ltd manufactures and supplies varies types of indoor and outdoor LED lighting
76. Guangzhou Ritop Lighting Co. Ltd provide professional solutions and right LED lighting source products for advertising industry.
77. Vertex Lighting and Electrical Co. Ltd focus on designing and manufacturing LED downlights.
78. Guangzhou Lanbolight Technology Co. Ltd is a set of film stage lighting equipment R & D, production, sales, engineering design and installation as one of the high-tech enterprises.
79. Liteharbor Lighting Technology Co. Ltd is a manufacturer with more than 15-year experiences in designing, developing and supplying wide selections of lighting products.
80. Shenzhen Fulite Lighting Co. LTD is lighting manufacturer focus on high power LED lights
81. Shenzhen Zedu LED Lighting Technology Co Ltd is an active global provider of LED lighting products
82. Hangzhou LK Import & Export Co. Ltd is a professional lighting provider which combines research, manufacture and sales.
83. HanRun Lighting Company Limited is a professional manufacturer dealing in LED products.
84. Shenzhen Kehei Lighting Technology Co. Ltd is a dedicated provider of LED lighting.
85. Changzhou Civibright Lighting Technology Co. Ltd is a professional  LED  lighting manufacturer.
86. Huizhou Wisva Optoelectronics Co. Ltd is leader strip lighting manufacturer
87. Sheenly Lighting Co. Ltd is an industrial leading LED lighting company specializes in manufacturing of innovative LED lighting solutions
88. LEDMY Shenzhen Co. Ltd is a comprehensive LED Lighting company with the combination of R&D, manufacturing, marketing and service.
89. Shenzhen ZDA Lighting Co. Ltd is a leading led lighting manufacturer in china
90. Shenzhen Nibbe Lighting Co. Ltd is a highly specialized manufacturer of explosion proof LED lights ,indoor , industrial and outdoor light fixtures. 
91. LED King Opto-electronic Co. Ltd is professional led lighting manufacturer.
92. SHENZHEN LOEVET CO. LTD is a professional LED lighting manufacturer 
93. Lowcled Lighting Co. Ltd is a high-tech enterprise which is specialized in developing, production and marketing of indoor lighting and outdoor LED lighting products.
94. IMEGA Led Lighting Co. Ltd is a Led Lighting professional manufacturer.
95. Sinpco optoelectronic Co. Ltd is a high-tech enterprise specialized in R&D, manufacturing and marketing LED lighting products.
96. NINGBO PRINCEWAY LIGHTING TECHNOLOGY CO. LTD is an industry and trade integrating company
97. YLSTAR Lighting Co. Limited is a professional LED lighting manufacturer and exporter Specializing in producing and selling various LED products .
98. Shenzhen Lumimore Lighting Co. Ltd is led lighting manufacturer
99. Ketai Industries Lighting Co. Ltd focusing on development and production of the top level commercial lighting products.
100. ZhongShan Black and White Lighting Factory is specialized in manufacturing decorated lighting products .
101. Shenzhen Puoda Optoelectronic Technology Co. Ltd is a collection research and development, production and sales of integrated high-tech enterprises. The main products are, led flexible strip lighting bar, freezer lights, low-voltage product line.
102. Shenzhen Jasional Electronic Co. Ltd is a professional hi-tech manufacturer specialized in R&D, manufacturing, marketing and service of led lighting products.
103. Hongkong Jier Light Co. Ltd specialized in researching and producing LED lighting products.
104. Apollolux electronic appliance co. ltd is one of the leading manufacturers and exporters specialized in aluminium die-casting and outdoor lighting developing and producing
105. Zhongshan Diamond Lighting Factory is lighting manufacturer
106. Zoweer (Shenzhen) Opto-electronics Technology Co. Ltd is a high-tech company  focused on the development, manufacturing and marketing of  LED lighting
107. Inlux Lighting Co. Ltd is a professional LED strip lighting manufacturer integrating R&D, production and sales.
108. Shenzhen Theledlight Co Ltd is specialized in developing and manufacturing LED lighting products
109. Ningbo Sunpu-opto Semiconductor Co. Ltd is specialized in high quality LED lighting product .
110. SHENZHEN HUAKE LIGHT ELECTRONICS CO. LTD is a professional manufacturer that specialized in LED LIGHTING product .
111. Ningbo Anpu Lighting Co. Ltd is a professional manufacturer which specializes in researching, developing, producing and exporting indoor and outdoor salt lamp and LED lighting
112. Shenzhen Garrini Electronics Co. Ltd is one of manufacturer specializing in the development and production of emergency lighting and exit light.
113. IFE Elevators Company is A large professional elevator enterprise that integrates R&D, design, production, installation and after-sales service.
114. SELOON Elevator Co Ltd is the professional elevator manufacturer who covers design, creation, sale, installation and service.
115. Fujihd elevator company is a world class China elevator manufacturers and elevator factory
116. WINONE Elevator Company Limited is a large specialty manufacture enterprise of escalator& elevator which integrated with R&D, project design, manufacture, sales, installation and after sales services. 
117. Fujian Bode Power Co. Ltd is a professional manufacture of Engine, Water pump, Diesel Generator Set, Gasoline Generator Set.
118. Baifa Power Ltd is one of leader generator sets and lighting tower manufacturer in china
119. WUXI OUMA MACHINERY MANUFACTURING CO. LTD is dedicated in R&D, manufacturing and custom-making of ultra silent generators, vehicle generators and marine generators
120. Zichai Power Co. Ltd is a wholly-owned subsidiary of China National Agricultural Development Group Co. Ltd., a specialized manufacturer of high-power medium speed diesel engines
121. CHANGZHOU CHANGSHENG POWER MACHINERY CO. LTD is a fast growing factory specialized in manufacture and sales of diesel engines, generators, water pumps
122. Hangzhou Kachai Electrical Equipment Co. Ltd is focuses on diesel generators research and development, manufacturing, marketing and services.
123. Fujian Yihua Electrical Machinery Co. Ltd develop and manufacturer various generators and generator sets
124. Guangzhou Jivan Mechanical & Electrical Co. Ltd devotes to the research and production of all kinds of diesel generator .
125. Shanghai Kosta Electric Co. Ltd is professional manufacturer of power generator sets.
126. TAIZHOU KAIHUA DIESEL GENERATOR SETS CO. LTD is a professional power generation equipment’ manufacturer, which mainly produces generating sets and alternators( generators)
127. Jiangsu Youkai Power Equipment Co Ltd is Diesel Generator manufacturer
128. GAC Motor Co. Ltd (GAC Motor )  is a Chinese automobile manufacturer
129. Qoros Automotive Co. Ltd is a Chinese automotive manufacturer
130. BYD Company Ltd is a Chinese manufacturer of automobiles, battery-powered bicycles
131. SAIC Motor Corporation Limited (SAIC Motor) is a Chinese state-owned automotive design and manufacturing company
132. SAIC-GM-Wuling Automobile (SGMW) is a joint venture between SAIC Motor, General Motors, and Liuzhou Wuling Motors Co Ltd. , it makes commercial and consumer vehicles sold in China under the Wuling and Baojun marques.
133. Chery Automobile Co. Ltd. ( Chery ) is a Chinese state-owned automobile manufacturer.
134. Zhejiang Geely Holding Group Co. Ltd ( Geely ) is a Chinese multinational automotive company 
135. Changan Automobile Company Limited is a Chinese state-owned automobile manufacturer
136. Cheng Shin Rubber Industry Co ( CST tires ) is chines Tyre manufacturer company .
137. Shandong Linglong Tire Co. Ltd (Linglong Tire) is a Chinese Tyre manufacturer
138. Double Coin  is a Chinese tires manufacturer
139. ZhongShan SENJI lighting technology co. LTD  is a leading lighting manufacturer in china
140. Sunlush Lighting (Dongguan) Limited is the design, development, production and sale set in one of international company for commercial lighting, with the product brand of VENEZINA
141. Dongguan Sense Lighting Technology Co. Ltd is  a professional manufacturer of LED industrial lighting in China, devoted to R&D, production, sales and Lighting solution.
142. Shengzhou Sanjiu Lamp Co. Ltd is a comprehensive Lighting manufacturer specialized in producing LED water proof lamps, panels and fittings with CB, CE, GS, TUV and RoHS certificates
143. Dongguan Baiwei Lighting Technology Co. Ltd is professional Manufacturer of Plastic extrusion and Aluminum extrusion. Supply all kinds of Led channel, led linear profiles.
144. Shenzhen Dianming Tech Co. Ltd is leading manufacturer of LED lighting/VMS/DMS for traffic management and full color LED display in China and worldwide
145. Maxge Electric Technology Co. Ltd is one of the mist specialized manufactures and exporters for modular electric devices in China
146. General Lighting Electronic Co. Ltd is a leading lighting manufacturer
147. Shenzhen Crep Optoelectronic Co. Ltd is a National high-tech enterprise focused on research, lighting manufacture and sales of LED lighting .
148. Foshan Shunde Ouhe Lighting Electrical Co. Ltd is a Led lighting manufacture .Specialize in LED light, bulb ,tube ,down light, ceiling lamp,panel light,T8,T5.
149. iLed Tech Company Limited is a professional commercial LED lighting manufacture in China
150. Shenzhen Longhua Optical Electron Co. Ltd is professional LED lighting manufacturer .
151. NINGBO HOSCA LIGHTING TECHNOLOGY CO. LTD is a professional manufacturer for outdoor lighting products in Ningbo, China.
152. Future Industrial Co. Ltd  specialized in led lighting manufacturing  .
153. Shenzhen Bang-Bell Electronics Co. Ltd ( BBE LED ) is led lighting manufacturing
154. Shenzhen Starwire Lighting Co. Limited is a leading lighting manufacturer focus on two products: LED Strip Light & LED Downlight. 
155. Zhongshan Jindian Lighting Technology Co. Ltd is  focusing on outdoor lighting, and one of the leader solar street lamp brand manufacturers. 
156. Ciki Optoelectronics Technology Co. Ltd (CIKI ) opened its door in 2011 as a landscape light manufacturer and electronic product production service provider in china.
157. Elan Lighting Co. Limited is lighting manufacturer professionals in the LED lighting and electronic industries
158. Hondel Lighting LLC is experts in the media facade and facade lighting . Also manufacture a wide range of landscape lighting.
159. Hangzhou ZGSM Technology Co. Ltd dedicated to creating a better quality, eco-friendly, efficient lighting environment through diverse businesses of LED street lighting, traffic , solar street and smart control system.
160. Shenzhen King Watt Opto-electronics Co. Ltd is a lighting manufacturer specialized in LED Downlights
161. ECO LITE Electronics Co. Ltd is dedicated to the development of Architectural lighting and Commercial lighting, combination with research and development, design, manufacture and sales.
162. Hangzhou Yongdian Illumination Co. Ltd is a world-class LED lighting product manufacturer for outdoor decoration façade lighting luminaires and intelligent control system.
163. Ningbo Feien Lighting Co. LTD is a professional LED lighting manufacturer integrating R&D, production and sales. 
164. Shenzhen Nexol Lighting Technology Co. Ltd is a lighting manufacture offer new concept of lighting like intelligent & healthy lighting having environment, provide a high quality lighting.
165. Olympia Lighting Co. Ltd is a well known lighting manufacturer in china
166. CIXI SUPLUX CO. LTD is Specialized in various lighting products ,mainly T8&T5 fluorescent fittings, LED waterproof lighting, ceiling lighting
167. HANGZHOU G-SUN LIGHTING CO. LTD is a manufacturing company of lamps , such as LED vintage bulbs, incandescent bulbs, finishing lamps, infrared bulbs, etc.