About Us

About ESI Technologies Group

ESI Technologies Group is the leading supplier of Process Equipment & Engineering Solutions for the Biotech, Pharmaceutical, Chemical, Semi-Conductor, Food & Beverage Industries in Ireland, and the UK. In the UK ESI also serves the Nuclear / Power and Oil & Gas sectors. Our supply partners include some of the world’s largest blue chip companies including Emerson, Flowserve, Crane, ITT, Millipore, Alfa Laval & Parker and privately owned companies such as Habonim, EBRO, Amazon and Continental Disc Corporation.

ESI has a long history since its inception in 1919 and has continued to grow in Ireland and the UK.

Going to market as ‘More than Equipment suppliers ……. Solution providers’ We have built our offering on the dedication and experience of our people. Our expertise is our strongest asset and combined, our core Engineers at ESI have over 300 years of process application experience in valves/pumps/control/safety/aseptic and instrumentation.

We are not solely dependent on the manufacturers for support, as all our staff are factory trained to allow for a quick turnaround on quotes and a customer-focused rapid response. Therefore, all knowledge is retained in-house and sizing and selection of equipment are carried out by ESI. This allows us to build a long-term strategic view and to offer a one-stop process solution, building extensive lifelong relationships with our clients, with an Engineering ability to work alongside site engineers to ensure competitive technical solutions and experience to suggest and source alternatives.

Combining all the above with our comprehensive Service Division (product-trained engineers to specialise in repair, installation, and commissioning) we have, the since our inception over 100 years ago, extensive experience in delivering large projects effectively.


Celebrating over 100 years in business, ESI now consists of a dedicated team of people in Ireland and the UK.


Southern Engineering was founded in the early 1900s by the Foley family and was the largest supplier of general Engineering Equipment in Ireland


First signed an agency agreement with SKF Bearings


Sean P. Foley former Managing Director & Owner of Southern Engineering



"We provide quality products and solutions drawing on our vast knowledge and experience"

Customer Focused

"We listen to our customers needs and work collaboratively to provide solutions"


"We work together to share responsibilities for a common goal"


"We pride ourselves on integrity built on a foundation of trust, accountability and reliability"


ESI consists of a dedicated team of people in Ireland and the UK. We are committed to customer satisfaction.

Not just equipment providers - Solution Providers!


If you like a challenge, have a good aptitude to learn and above all strive for success, then why not consider a position at ESI? As employees, we are here because we want to be here. We enjoy our work — and each other.


Our supply partners include some of the world's largest blue chip companies including Alfa Laval, Crane, Emerson, Flowserve, ITT, Millipore and Parker and privately owned companies such as Amazon, Continental Disc Corp, EBRO and Habonim, Spirax Sarco and Valex.


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Our goal at ESI is to create and maintain long terms partnerships through support, communication, flexibility and innovation.

Jim Creane
Group Purchasing Manager APC

I have worked with ESI Technologies on numerous projects over the years. In that time, I found ESI to be extremely diligent and professional in all dealings I have had with them. All projects were delivered to a high standard and always meeting technical specifications along with commercial and delivery expectations. ESI’s vast knowledge and experience made working on these projects so much easier and helped immensely to always maintain project schedules.

Lead Design Engineer
UK Engineering Consultants

"A great team that’s very customer focused, with the technical expertise to get the job done, with the right kit. I very much appreciate all the support guys"

Contracts Manager
Ireland Biotech Facility

"ESI is a very good company and a reliable industrial partner"

UK Industrial Gas Systems Contractors

"Fantastic company to deal with"

Lead Engineer
Ireland Biotech Facility

"A great company to do business with. Keep up the great work you do!"

Leading Pump Manufacturer

"Success is never an accident. It’s the thousand little things that you do right. ESI is a great team!"

Process Engineer
API Plant in Ireland

"I’ve worked with ESI for over 10 years, and always found them great to deal with, always supplying a good product or service, and as a team they’re committed to the customers needs"

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