Any satellites filed through the Isle of Man must be done through a contractor which holds an Agreement with the Communications and Utilities Regulatory Authority.
Filings for geostationary and non-geostationary satellite orbital slots are submitted through Ofcom to the International Telecommunications Union (ITU).
Currently, the only approved contractor in the Isle of Man is ManSat. You can find more information on ManSat's operations on their website. Link to ManSat website.
If you are interested in filing a satellite please contact ManSat directly to discuss your requirements.