About JDE Engineering

A specialist data centre commissioning consultancy. Built on deep technical expertise, a commitment to safety, and a track record of delivery on complex, high-stakes projects.

100%

Projects Delivered

100%

Client Satisfaction

12+

Major Clients

UK & Europe

Our Story

Specialist expertise. Genuine independence.

JDE Engineering Services Ltd is a specialist consultancy focused on data centre commissioning and Safe Systems of Work. We work with operators, contractors and hyperscale developers across the UK and Europe to ensure critical infrastructure is delivered safely, compliantly – and proven to perform before it goes live.

Our team brings deep technical expertise in electrical systems, mechanical systems and integrated testing, combined with a practical understanding of the pressures, risks and complexity of live data centre environments.

“Commissioning is the point where systems are tested under real conditions, verified against design intent, and certified ready for operation. That is what we exist to deliver.”
Josh Holland – CEO

How we Work

Our Approach

Design Review

We engage from the earliest stages, reviewing designs, identifying commissioning risk, and building a strategy that protects delivery.

Testing & Verification

Rigorous pre-functional and functional testing, overseen by experienced engineers who know what good looks like.

Certification

Evidence-based reporting and formal certification that gives clients and operators confidence at handover.

What we Stand For

Our Values

The principles that guide every project we take on.

Safety First

No project outcome is worth compromising the safety of people or assets. We build safe systems of work into everything we do.

Independence

We provide genuinely independent assurance. Our job is to verify performance,not to sign off what we’re told.

Technical Rigour

We apply engineering discipline to every engagement. Evidence-based. Methodical. Thorough.

Reliability

We show up, we deliver, and we are accountable for the quality of our work – every time.

Collaboration

We work as part of the wider project team, communicating clearly and supporting everyone involved to achieve a successful outcome.

Integrity

We operate with transparency and honesty with clients, partners, and the people on our projects.

Meet Our Leadership Team

JDE is led by people who have built their careers on site, in commissioning, testing and safe systems of work. They are backed by a finance and operations team that keeps every project properly resourced and running smoothly.

Meet Our Leadership Team (Option 2)

The people behind JDE: engineers, safety specialists and operations professionals who take responsibility for getting critical systems delivered safely.

Josh Holland

Founder & CEO

Sam Holland

Co-Founder

Jordan Taylor

Account Manager

Paddy Keogh

Accounts Manager (EU)

Emma Bentley

Executive Assistant

Jonston Campbell

Operations Director

Kevin McKillop

Operations Director

Sean Connolly

Lead Energy Marshall

Standards & Compliance

Accreditations

Accreditation logos to be added

Please provide details of any certifications held (e.g. ISO 9001, ISO 45001, CHAS, SafeContractor, Cyber Essentials) and I’ll display them here with their official logos.

Ready to work together?

Tell us about your project and we’ll let you know how JDE can help.

Get in Touch

Our Services