![]() Megger USA Megger USA (also known as AVO Multi-Amp) is a company that provides electric test equipment and measuring instruments for electrical power applications. | ![]() Shanghai Aerospace Energy Shanghai Aerospace Energy (上海航天能源股份有限公司) is a manufacturer of smart energy equipment. | ![]() OCS OCS Optical Control Systems is a company that provides solutions for quality control and assurance in the polymer and petrochemical industries. | ||
Founding Date | Founding Date 1978 | Founding Date 1994 | Founding Date 1990 | Founding Date 1970 |
Type | Type Subsidiary | Type Subsidiary | Type Private | Type Subsidiary |
Tags | ||||
Locations | Locations Dallas, US HQ | Locations Shanghai, CN HQ | Locations Witten, DE HQ | Locations Timișoara, RO HQ |
Employees | Employees 21578% decrease | Employees 350 | Employees 1091% decrease | Employees 195 |

Shanghai Aerospace Energy (上海航天能源股份有限公司) is a manufacturer of smart energy equipment.
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OCS Optical Control Systems is a company that provides solutions for quality control and assurance in the polymer and petrochemical industries.
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AEM is a manufacturer and supplier of meters and meters for measuring electricity and gas.
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