Suzhou Yiguang Instrument Co., Ltd. is a well-known enterprise integrating R&D, design, manufacturing and sales in China's geographic information measurement equipment industry. It is a high-tech enterprise in Jiangsu Province. The company's trademarks "FOIF" and "Yiguang" enjoy wide popularity in the fields of domestic engineering and measurement. Since the successful development of J2-2″ optical theodolite in 1968, the company has always been committed to providing customers with high-quality, high-precision and high-performance measurement equipment. The company's current main product series include measurement GNSS receivers, total stations, theodolites, Leveling instruments, sagging instruments, laser engineering instruments and measurement solutions, etc.

The company's predecessor, Suzhou First Optical Instrument Factory, was established in 1958 and was restructured into Suzhou Yiguang Instrument Co., Ltd. in 1999. It is a member enterprise of Suzhou Chuangyuan Investment Development (Group) Co., Ltd. The company is located in Suzhou Industrial Park and has advanced R&D and manufacturing bases. There are several innovation platforms available, including Jiangsu Province Enterprise Technology Center, Jiangsu Province Modern Surveying and Mapping Instrument Engineering Technology Research Center, Jiangsu Province Enterprise Graduate Workstation, etc. The company has a research and development and engineering team specializing in precision instruments, optical engineering, mechanical design/process, electronic technology, computer applications and engineering measurement. The company also has three major workshops: assembly, precision optical processing, and machining, and a large number of professional and technical employees. It has advanced production processes and professional processing equipment, and has formed solid manufacturing capabilities in the integration of optical, mechanical, electrical and computing.

The company masters core technologies such as angle measurement, distance measurement, and height measurement. In recent years, we have focused on transformation and upgrading, tuning structures, and promoting high-quality development, and are committed to the research and development of high-precision and fully automatic products. We have developed advanced domestic measurement robot systems, high-precision industrial measurement theodolites, high-precision digital level and other products earlier.

The company not only has independent research and development capabilities, but also has presided over and participated in the compilation of nearly 20 national standards such as "Total Station", "Electronic Theodolite", "Optical Theodolite", and "Level".

The company adheres to the concept of "cooperation, openness, win-win, and creating value for customers", establishes a complete sales service system, and the sales network is spread across provinces and cities across the country, and can provide full-scale services to domestic users quickly and thoughtfully; the company actively explores foreign markets , "Yiguang" brands and products have entered the markets in dozens of countries around the world.

In the future, the company will continue to provide professional high-precision space information measurement products and technical services to domestic and foreign customers, build an internationally competitive scientific and technological innovation base, and work hard to realize the dream of "creating a world brand and making a glimpse for a hundred years".