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About Us


Corporate Overview

Yelo, founded in 1983, is a leading test equipment manufacturer that designs builds and supports test engineering solutions for a range of industries including; Photonics, Defence and Automotive. As well as this we manufacture bespoke test solutions for OEM's, CEM's and EMS.

With a newly opened 25,000 square foot manufacturing facility, Yelo boasts one of the largest test houses in the UK. This is home to a team of 50 including electronic engineers, mechanical design engineers, software developers and test/commissioning/support engineers.

Yelo are vertically integrated and possess full design and manufacturing capabilities.




Yelo is the market leader in laser burn in and reliability systems, with a proven track record in development and support globally.


Yelo has developed a series of test rigs and custom test equipment for the Defence Industry.


Yelo has developed a range of dedicated test and qualification solutions for the automotive industry e.g. testing pedals, lighting dashboard controls etc.

Bespoke solutions

Bespoke solutions
Yelo develops bespoke testing solutions for CEM's, OEM's and EMS. 

Our Manufacturing Facility

Our new facility was officially opened on 27 November 2017 by Invest Northern Ireland.  It is a facility spreading over 25,000 square feet, which is a considerable increase from the 18,000 square feet we previously had. The wider space allows us to work on larger orders and manufacture more systems at the same time, more efficiently. 

The substantial infrastructural development was complemented by the reception of several large-scale orders from big companies, resulting in a 25 percent increase in revenue.

Ample Factory Space

The larger building has also enabled us to designate dedicated design suites, including mechanical engineering, software, and electrical. These facilities contribute essentially to the improved communication between the engineers and the designers on the manufacturing team.

The space has also helped us to expand our in-house processes including;

CNC machining (Mill & Lathe),
Manual machining (Mill & Lathe)
Wire looming,
PCB assembly,
Mechanical assembly,
System assembly,
System test
Electronic design (digital & analogue)
PCB design
System design
Software development (LabView, C++, Visual C, . NET)

Fully Equipped Test House

We have also introduced additional equipment, in the form of three Computer Numerical Control (CNC) mills and a CNC lathe, which we had no space for before.
© Copyright 2021 Yelo Ltd is a registered company in Northern Ireland, registered number NI 16345 VAT No: GB 354 1381 13