Horstman operates three business units and trades with customers and supplier in more than 28 nations worldwide. Our activities comply with the relevant national legislation for each activity and we tailor our trade compliance plans to ensure that technology, hardware and services are correctly managed.  In some scenarios, our customer or end users will require that the export potential of the product is not limited by certain materials, components, technologies or their national origins.  We manage the design activity, engineering services and supply chain sources through our three separate entities to ensure that the compliance control plan is met in full.

One commonly request is that a project design and hardware is not subject to licencing restrictions of a third country, such as the ITAR control of the export and import of defense-related articles and services on the United States Munitions List (USML).

• Horstman Systems Defence Systems Limited , is based in the UK and for programmes and complies with UK and EU export control legislation. Data is hosted in UK servers and secure interchanges with sister companies are managed in compartmented data flows to avoid cross-pollination.
• Horstman Canada  is based in Canada  and complies with Canadian law. Data is hosted in Canadian servers and secure interchanges with sister companies are managed in compartmented data flows to avoid cross-pollination.
• Horstman Inc  is based in Michigan,  US and activities are subject to the ITAR control for the export and import of defense-related articles and services on the United States Munitions List (USML) as well as the EAR and other US law. Data is hosted in US servers and any interchanges with sister companies are managed under applicable US government licences, such as TAA or MLAs.