Custom Made Solutions

Reducing risk by working with Gresham Power

With over 80 years’ experience designing, manufacturing, testing, and certifying ruggedised power systems, we are set up to support your team from the initial design concept throughout the serviceable life of the platform.

With a broad portfolio of successful on-time and on-budget projects, Gresham Power are well versed in creating the highest quality products, designed, and tested to perform in the harshest of environments.

With the understanding that power systems remain in service for decades, our team of power experts can recreate obsolescent power supplies. For example, in a recent project, we were able to recreate an obsolete power supply to be form fit and function identical to the original, however, the replacement units are using higher efficiency, more reliable modules.

Power Supply Distribution

Gresham Power Electronics offer complete power supply unit (PSU) solutions.

Working in partnership we commit to offer best-fit technical and commercial solutions from industry-leading manufacturers for your power supply requirements.

The wide choice of power supplies available today means that, there is one available off-the-shelf, to meet every project’s specifications. Sometimes, however, an innovative design, or an unusual application may call for something tailormade for a project.

This may require just a little tweaking of the original, or it may mean a completely bespoke design, custom made for specific requirements.

Resolving / Solving / Identifying or Tackling Obsolescence

A strong customer partnership with good communication can also tackle obsolescence. Our experienced and knowledgeable team of power experts can recreate obsolescent power supplies. For example, in a recent project, we were able to recreate the obsolete power supply to be form fit and function identical to the original, but using higher efficiency, more reliable modules.

Gresham believes in a partnership with its customers. This ensures that we understand the project in all aspects and, with our experienced team of power supply design engineers we offer professional advice and focus on our in-house resources.

Our engineering design and manufacturing team specialise in a comprehensive range of activities from PCB and Mechanical design through prototype development to board and system assembly and test, box build ranges from a single PCB in an enclosure, to complex integrated systems.

Adding More Than Value

Using proven components, managing safety compliance, EMC approvals and accreditation, as well as bringing engineering skills and design expertise, we can help our customers reduce development time. The right power supply can mean that a product achieves a first-to-market advantage and saves the customer time and development effort because Gresham is responsible for design, approvals, and production.

Gresham’s value-added solutions are able to add additional circuitry, from power supply and control interfaces; system control; thermal management options and 19” rack integration for a tailormade power solution. We are also able to offer advice on compliance with standards, from medical, industrial, railway and military using COTS products for a variety of applications. Our specialist expertise can be called on to ensure suitability for the end use, for example custom battery chargers for electric vehicles, or rugged UPS systems.

We provide a responsive, high quality service utilising best practice to deliver effective solutions for your requirements.

Our commitment to customer service, is fully supported by a skilled and focused workforce.

Talk to us and we will be able to assist, call +44 (0)1722 413 060 or, if you prefer get in touch with our Sales Team.

Design Customisation – Partnership – Added Value – Trust

UK Engineering Capability


  • Circuit Design and PCB Layout
  • Battery & charger technology
  • Marine / Naval power systems
  • Solid-works 3D CAD
  • Theoretical Shock Analysis
  • Full Shock, Vibration & Environmental Testing
  • EMC Compliance / Testing – Def Stan/MIL-STD
  • Ingress Protection IP23/44/54
  • Lloyds Register – Naval Vessels Lloyd's Register


  • ILS Packages
  • User Manuals
  • Installation Documents
  • Work Instructions
  • Maintenance

We can provide a wide range of technical documentation to meet the customers’ requirements, in a variety of formats.

Packages can range from a simple Operating and Maintenance Manual to a full technical package including ILS data.

For assistance please contact support.

UK In-House Manufacturing


  • In-House
  • Full product build from prototype to full equipment manufacture.
  • Hand built PCB to complete Systems.
  • Equipment Testing.
  • Full Engineering Support.

Our specialist manufacturing capability lies with our skilled team of professional electro/mechanical prototype wireman.

With a knowledgeable workforce we have established a dedicated team who take great pride in their work and who produce best in class, high end, robust & reliable hand built equipment.

For assistance please contact support.