We work with a group of carefully selected manufacturing partners to provide a comprehensive suite of auto electrical, power, control and specialist lighting products, for vehicle conversions. We can assist our customers with sourcing of specific requirements outside of our standard product range, using our considerable experience of the special purpose vehicle sector. We can also help fleet managers and end users with procurement of loose equipment, base vehicles and sourcing of complete conversions.


We offer cable, wiring harness and large-scale vehicle body looms, tailor-made to customers’ exact specifications. We can also produce complex auto electrical sub-assemblies, such as control/distribution panels, typically found in emergency vehicles.
Our partner’s factories feature intelligently automated loom production, supported by advanced machinery.
We have capability to laser-ID individual wires, now a mandatory requirement for some applications.
We excel in producing bespoke looms, to a high standard, quickly.
Additionally, we offer PCB manufacturing to assist customers with their custom electronics.

Lighting for professionals when safety and reliability matter.
Mactronic have been designing and manufacturing portable lighting since 1989 and we are proud to offer their handheld flashlights, lanterns, angle lights and area lighting, to the UK special vehicle sector. Built for the most demanding military, industrial and emergency service applications, many models are ATEX certified and have innovative safety features.



We have worked with vehicle auxiliary electrical control systems since 2004 and we know the value and peace of mind that intelligent power management systems -bring, to special purpose vehicles. User interfaces started with a few simple rocker switches and progressed to more comprehensive keypads and, latterly, touchscreens.
But with increasing electrical complexity, can come operator confusion. And when operators are working under pressure in critical situations, finding the right key to press, can be challenging and compromise safety.
The ‘iMS’ system from Intermsolve offers the possibility to add voice command technology to existing, third-party control systems, with relative engineering -ease and with value for money relative to the safety benefits.
Function Beyond are Intermsolves authorised sales partner for this innovative technology and we can advise on how this system can be integrated into your vehicles – for both new builds and retrofits.
Special purpose vehicles are increasingly electrically -complex, placing big demands on battery reserves. For decades, Ludo McGurk have been engineering specialist charging products and safety devices to keep emergency vehicles mission ready.
‘LudoPlugs’ provide safer vehicle charging, through automatic release in the event of accidental starting of vehicles whilst connected. These devices can be bought alongside Ludo’ battery chargers and management products, to provide a comprehensive power setup for your vehicles.
Function Beyond are proud to represent these UK-manufactured products in our designated markets.


We will soon announce an exciting new partnership, with an internationally recognised brand, which will bring extremely high -performance auxiliary lighting to the Function Beyond family.
Watch. This. Space.

Control electronics are in our blood. We have bought, sold, and engaged in the configuration, design and manufacture of these systems, over the duration of our twenty-five years working with SVs.
An intelligently selected and configured control system can transform the functionality of a special purpose vehicle, turning it into a highly automated, user-friendly and, most importantly, reliable, machine.
Contact us to select and source the optimum control system to suit your conversion’s requirements.
We have close relationships with manufacturers of other conversion product types, including visual and audible warning devices, passenger safety and communication systems including intercoms, and specialist public announcement systems.
If you have a specific requirement not covered by our presented product groups, then please contact us and we will be happy to assist.