TES Group

TES Group TES are environmental engineering experts specialising in water purification, water recycling, power

Established in 1999, TES have gained an impressive foothold in the water and power markets. Servicing Clients throughout the UK, Ireland, Europe and Internationally, TES have extensive experience in providing tailored design and project management to every contract. Entering the world of water and wastewater treatment designing, fabricating, installing and commissioning complex control systems, TE

S have since built upon the skills and knowledge gained to now offer complete design and build packages, process design, software systems integration and MEICA installation and repair services. Our experience in power, control and automation has also given TES the opportunity to extend our service offering to the building services sector through our range of HV and LV Switchgear. Exceeding industry standards, the TES Switchgear range is built with the same precision and exacting design as our control systems ensuring customers receive exceptional tailored solutions.

Delivering critical infrastructure without disrupting daily life is no small feat.We recently completed a major upgrade ...
26/08/2026

Delivering critical infrastructure without disrupting daily life is no small feat.

We recently completed a major upgrade at Ballinrees Water Treatment Works, outside Coleraine.

Delivered for NI Water, the project has extended the site with a new GAC treatment building and pumping station, boosting treatment capacity and giving the works extra emergency water storage should demand spike.

Throughout construction, every new asset was tested and commissioned before going live, so the works never stopped operating and supply was never interrupted, further strengthening water security for homes, businesses and tourism along the North Coast.

Read more about the project here - https://www.niwater.com/about-us/news/195-million-water-improvement-scheme-complete-at-ballinrees-water-treatment-works-coleraine

18/08/2026

"Astronomical."

That's how our Managing Director, Michael Beagan, described the growth of the sector and the Ballykelly facility he runs in this recent article by BBC Northern Ireland's Economics & Business Editor John Campbell.

Four years ago, our Ballykelly facility started with a team of two. Today, that growth mirrors a much bigger shift taking place across the North West, where manufacturers supplying AI data centres are seeing sustained demand and creating jobs to match.

This BBC Northern Ireland article explores how that consumer shift is changing the region's economy and communities, with local manufacturers leading much of that change.

Read the full article here and thank you to John for taking the time to join us - https://www.bbc.co.uk/news/articles/cx2jrj4l7lqo

We're hiring a Production Manager to lead our team in Ballykelly!This is an opportunity for someone with proven experien...
13/08/2026

We're hiring a Production Manager to lead our team in Ballykelly!

This is an opportunity for someone with proven experience in a Production Manager, Manufacturing Manager or Operations Manager role to take on a senior, hands-on position within a fast-growing business serving the global data centre market.

Reporting to the Operations Director, this role holds responsibility for the day-to-day performance of our switchgear production facility, leading a team of approximately 120 people to deliver safely and on time.

We're looking for someone who has led production teams through direct reports, and who's confident using data and KPIs to drive performance on the shopfloor.

Apply to join the TES Power team here - https://seemehired.com/jobs/71004?embed=1

Our 300,000 sq ft manufacturing campus in Ballykelly is where our critical infrastructure comes to life. 🏭Every stage of...
30/07/2026

Our 300,000 sq ft manufacturing campus in Ballykelly is where our critical infrastructure comes to life. 🏭

Every stage of production, starting with steel fabrication all the way to copper processing and full system assembly, happens right here.

That level of control lets us maintain consistent quality and adapt quickly as project demands evolve, while every system is fully assembled and factory tested here, long before it ever reaches site.

At TES, our pool of manufacturing capability is what allows us to deliver power infrastructure to data centres worldwide.

Find out more about how our engineering expertise can support your deployment here - https://www.tesgroup.com

The data centre industry is one of the fastest-growing sectors in the world, and it needs the next generation of enginee...
15/07/2026

The data centre industry is one of the fastest-growing sectors in the world, and it needs the next generation of engineers to help build it.

This World Youth Skills Day, we're proud to highlight our apprenticeship schemes, where emerging talent is gaining the skills needed to deliver the critical infrastructure that powers the digital economy.

One in ten of our workforce at Ballykelly is an apprentice, and a higher proportion of our team is under 40 than the industry average, showcasing our commitment to investing in long-term development.

Our apprentices rotate across manufacturing, installation, testing and commissioning, building a rounded understanding of how complex power systems are designed, built and delivered at scale.

With the demands placed on data centre infrastructure evolving faster than ever, investing in the talent entering the industry today has never been more critical to the sector's future.

Find out more about our apprenticeship openings here - https://www.tesgroup.com/careers/

07/07/2026

The FIFA World Cup generates millions of digital interactions every second. ⚽️

Starting with live streaming and broadcast services all the way to scanning a ticket, every digital touchpoint must be powered somehow.

Behind the scenes, data centres process and distribute vast volumes of data in real time, relying on power infrastructure to keep the games live.

Supporting this level of digital demand requires resilient, critical infrastructure that underpins the data centres, enabling global connectivity.

Through the design and manufacture of high-performance power distribution systems, TES Power supports data centre operators as they scale the infrastructure underpinning today's digital economy.

We're hiring an Estimator – Modular Electrical Rooms (PODs & Skids)! As TES Power continues to grow, we're looking for a...
06/07/2026

We're hiring an Estimator – Modular Electrical Rooms (PODs & Skids)!

As TES Power continues to grow, we're looking for an Estimator for Modular Electrical Rooms (PODs & Skids) to join our team in Ballykelly.

This is an excellent opportunity for an experienced estimator to play a key role in delivering innovative modular electrical solutions, working alongside our engineering, project delivery and commercial teams on a range of exciting projects.

We're looking for someone with a strong background in electrical estimation, switchgear and modular solutions who enjoys turning technical requirements into commercially competitive proposals.

📍 Ballykelly
🕒 Full Time | Permanent
💰 Competitive salary + benefits

For full details and to apply, visit - https://seemehired.com/jobs/tes-group/68325/

The future of engineering depends on opening the door to the next generation of talent.This International Women in Engin...
23/06/2026

The future of engineering depends on opening the door to the next generation of talent.

This International Women in Engineering Day, we're celebrating the women across TES who are designing, manufacturing and delivering the critical infrastructure that powers communities and digital economies.

Addressing the industry's skills challenge starts with encouraging more people to consider a career in engineering and creating clear pathways for them to succeed.

At TES, we're committed to developing diverse talent at every career stage, creating an environment where people are empowered to build rewarding careers in engineering and help deliver tomorrow's critical infrastructure.

Find out more about our career openings here - https://www.tesgroup.com/careers/

Our social media team asked our first-year apprentice, Conor Devlin, to post something about our apprenticeships opening...
03/06/2026

Our social media team asked our first-year apprentice, Conor Devlin, to post something about our apprenticeships opening...

We're hiring Electrical Installation Apprentices to join the team at Cookstown, working on projects across the water and wastewater industry, while learning alongside experienced engineers.

Fortunately, there's more to the role than meets the eye.

To find out more, read the job description and apply here - https://seemehired.com/jobs/tes-group/65242/?embed=1

20/05/2026

TES Group is growing, and we're looking for the people to grow with us.

We have 20+ roles open right now spanning a wide range of specialist areas across engineering, manufacturing, operations and project delivery.

As we scale to meet increasing demand for modular power infrastructure around the world, we're building a team of experts that will take us there.

Click here to view our open roles in Cookstown and Ballykelly here - https://www.tesgroup.com/careers/

Address

Kilcronagh Business Park
Cookstown
BT809HJ

Opening Hours

Monday 8am - 4:30pm
Tuesday 8am - 4:30pm
Wednesday 8am - 4:30pm
Thursday 8am - 4:30pm
Friday 8am - 4:30pm

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