Custom power for worldwide high-priority air operations
On-systems are a trusted, reliable designer and manufacturer of power supplies for the aerospace market. Our specialist engineering knowledge enables us to build elite performance components to fit existing systems, or our team can custom build solutions from scratch. Our in-house experience spans building supplies for under the wing, unpressurised areas and the avionics bay. With On-systems’ power solutions also being relied on in extreme temperatures from -55°C to +90°C, varying humidity and high altitude up to 51,000ft. We can provide power for different equipment:
- Commercial aircraft
- Military aircraft
- Fixed wing
- Rotary wing
- UAV – Unmanned Aerial Vehicle
Our solutions meet stringent requirements:
Power uptime as standard foressential aerospace duties
For decades we have been solving technical challenges in aerospace by inventing new engineering technology that has truly disrupted the industry. Our commercial and defence clients trust us to devise tech that works tirelessly and reliably for their unique demands.
We focus on developing low level electromagnetic interference power solutions that enable power supplies to be fitted in fuel and hydraulic pumps and actuators. We work on creating the most cutting edge and advanced solutions to improve fuel efficiency, operational uptime and meet the strict requirements in aerospace such as DO-160G guidelines.
The power systems we skillfully design and engineer are carefully considered and built to tolerate the harshest conditions in the air. From multiple altitudes and shock to severe temperatures and vibration, our power can handle every type of demanding flight or aerospace mission.

Certified custom power supply design and manufacture
We have an established reputation in the aerospace industry thanks to our innovative team and forward thinking approach. Our UK based manufacturing facility means that our power products are built to operate at their peak and last, no matter the conditions. At the end of the build process, supplies undergo the most thorough testing protocols to ensure safety in the air.
Our power components are light in weight which suits critical air equipment and are extremely efficient in reducing the load on vital machine cooling systems. We want to enable your current equipment to operate at its optimum and our engineering team create bespoke power design concepts to enable this.
We create power supplies that also gives remote control and fast feedback so that pumps can be adjusted to improve flight efficiency. Additionally, our solutions give operating personnel real time load status and detailed health monitoring data so that maintenance can be proactive rather than reactive. This aids in the stability and long term execution of the part. We put our focus on constructing components that have longevity, to reduce costs and downtime.

Avanta is a division of On-systems, also based in the UK and specialising in robust military power supplies. Made for durability and efficiency, the power units support operations across land, air and sea environments. Working closely with defence companies, Avanta delivers bespoke power solutions that meet international standards. Using cutting-edge technology and decades of experience, the highly reliable power supplies as used in military applications worldwide.
Some of the key factors driving MIL technology development include precise power input quality and output control for non-standard voltage requirements. We develop technology that complies with MIL-STD electromagnetic standards, together with harsh environment resilience.The power integrations we develop focus on reliability and performance. When required we partner with suppliers who are versed in the complexities MIL standards bring, helping us to provide long-term success in mission-critical applications.
On-systems delivers exceptional custom power supply design services for aerospace, defence and marine sectors. Our experienced UK-based engineering team specialises in creating bespoke power solutions that meet the most demanding technical requirements. We transform complex power challenges into efficient and reliable systems through innovative design, rigorous testing and cutting-edge technology. With multiple industry awards and a commitment to excellence, we provide tailored power solutions that enhance operational performance and reliability across high-stakes environments.
Assembling in-house has become more complex, expensive and less practical, we work with clients to improve efficiency and quality, through outsourcing their build to print to us. Our experience in manufacturing electrical components from drawings, has given us the knowledge to deliver high quality products from customers designs. This has led to repeating contracts from Aerospace and Defence manufacturers.