An IT company inside an electrical contractor.
SEG Core was built to close the gap that costs businesses the most: the one between the people who run your IT and the people who install what it runs on.
Delivering core excellence
SEG Core is the managed IT and security division of The Specialist Electrical Group — an established electrical contractor working on electrical installation, compliance, fire detection, renewables, data and security.
That parentage is the whole point. A conventional IT provider can configure your firewall but has to call someone else to get power to the comms room. A conventional security installer can fit cameras but has no view of the network they sit on. We do all of it, with the accreditations, insurance and method statements to work in live commercial buildings.
The result for clients is simpler than the org chart: one order, one team on site, one number to ring, and nobody to point at when something stops working.
What we believe
- Say the price. We publish what managed IT costs across the market and what drives the number.
- Say the target. Our response times are on this website before you sign anything.
- Measure before you design. Survey the building, then specify. Not the other way round.
- An engineer should answer. Not a script, and not a queue.
SEG Core at a glance
Based in St Albans
SEG House, Chiswell Green — with engineers working UK-wide, from single offices to national estates.
Part of a wider group
Alongside SEG Electrical and SEG WiFi, sharing engineers, accreditations and back office.
Three service lines
Managed IT, cyber security and building security — one contract, one invoice.
Directly employed engineers
Our own people on site, not a labour-only subcontractor you've never met.
Advice, not just support
We don't sell consulting as a product. It comes with the relationship — because a provider who only fixes what breaks is a provider who never tells you what to stop paying for.
IT strategy & budgets
A three-year view tied to what the business is actually planning — headcount, sites, systems — with the spend forecast alongside it. Reviewed each year with you.
Technology audits
An honest read on infrastructure, licensing and supplier contracts, ranked by risk and cost to fix. If a recommendation is expensive we say so, and set out the cheaper option and what you lose by taking it.
Procurement & vendors
Specifying and negotiating hardware, software and connectivity, then holding suppliers to what they promised. We'll tell you when the right answer is a supplier that isn't us.
Accredited, insured, and already on the approved lists
SEG Core is a Verkada Gold Partner. The electrical accreditations below are held by The Specialist Electrical Group and are available to SEG Core clients for procurement and pre-qualification.
Through The Specialist Electrical Group, our engineers also carry:
Three brands, one business
SEG Core is one of three trading brands inside The Specialist Electrical Group. Whichever door you come in through, the same engineers, accreditations and back office stand behind it.
SEG Electrical
Electrical installation, EICR compliance, fire detection, renewables and reactive maintenance across the UK.
segplc.com →SEG Core
Managed IT support, cyber security and access control for businesses across the UK and beyond. You’re here.
You are hereSEG WiFi
Enterprise Wi-Fi surveys, installation and structured cabling with guaranteed coverage, across the UK and Europe.
segwifi.co.uk →What that gets you
- A larger pool of directly employed engineers than an IT provider this size would normally have — and a wider range of trades among them
- Electrical accreditations, insurances and method statements already in place for work in live commercial buildings
- One order, one programme and one invoice, whichever brand does the work
- Nobody subcontracted in, and nobody to point at when something stops working
Also from SEG Core: verkadacctv.co.uk — our Verkada-specific site for camera and access control projects.
Wherever the building is
Our own engineers work UK-wide. Recent projects run from Leadenhall Market and Marble Arch to Oxford, the Surrey Hills, Buckinghamshire and Coatbridge in North Lanarkshire, and estates as large as nine offices from Marlow to Glasgow on one programme.
The office is SEG House in Chiswell Green, St Albans, which is where the vans start from and why response into London and the surrounding counties is quickest. It is not a boundary — if the work justifies the journey, we make it.
The paperwork behind the vans
Our electrical works are delivered through The Specialist Electrical Group, which holds the accreditations commercial clients and main contractors ask for:
Accreditations are held by The Specialist Electrical Group Ltd, whose directly employed engineers deliver our electrical works. Verkada platform accreditation (Gold Partner) is held by SEG Core Ltd.
Come and see how we work.
Book a free IT review and you'll meet the engineer who would look after your site — before you commit to anything.
Book a free IT review Call 01727 822 833Tell us what you need
Send us a few details and one of our engineers — not a call centre — will come back to you within one working day.