Expo Technologies Expo Technologies is a company that designs and manufactures purge and pressurization systems. | ![]() Matt Sweeney Special Effects Matt Sweeney Special Effects is a company that manufactures, sells, and rents equipment for the entertainment industry. | |
Founding Date | Founding Date 1954 | Founding Date 1982 |
Type | Type Private | Type Subsidiary |
Tags | ||
Locations | Locations Sunbury-on-Thames, GB HQ Qingdao, CN Twinsburg, US | Locations Los Angeles, US HQ |
Employees | Employees 932% increase | Employees 1 |

Matt Sweeney Special Effects is a company that manufactures, sells, and rents equipment for the entertainment industry.
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