About Us

About Us



Since our start in 1986, Power Systems International Limited (PSI) has been based in Buckinghamshire in the UK. Originally in Chalfont St Giles, now the business is based in Milton Keynes, to take advantage of better communications and a vibrant developing economy, with better accesses to key staff. focused on providing power solutions for a wide range of customers. Where our client’s have a known input and they need it converting to another known, this is where PSI can help.

Our Core Markets

Our client’s are generally internationally recognised companies, often leaders in their fields. Whilst most of our clients are UK based, we have a wide range from Japan, though the Middle east and over the the USA. Our focus is on providing the right solution for our client’s, where they are based is less of a concern for us.

The company focuses on the following markets:

  • Air / Aerospace;
  • Laboratories;
  • Lifts;
  • Rail;
  • Oil;
  • Maritime; and
  • Industrial.

Our Clients

We are focused on a specific niche, of power conversion. So whilst we are not a household name, our client’s are. These include Siemens, BAe, Babcock, RAF, USAF, Seadrill, Dubal, KNPC, University of Cambridge, Henley Business School , National History Museum … to name but a few.

Our Products

These include:

Given our extensive knowledge in what is a niche area, we work with our clients to provide the right solution for their needs.

Power Ranges

We offer products from 420VA to 4,800kVA and protection from IP20 to IP56. We can cover most options and eventualities to meet the specific needs of our clients.

Our Headquarters

We are based at Carina House, Sunrise Parkway, Milton Keynes, MK14 6LS. United Kingdom

Our telephone number is +44(0)1494 871 544 and our website with more information is www.powersystemsinternational.com