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Our difference

We are on a mission to deliver innovative business transforming technology solutions that exceed our customers’ expectations.

Our culture

Our values guide us in everything we do and help shape our culture and customer approach. Find out more about our values and meet some of our team.

Our Microsoft Partnership

As a Microsoft Solutions Partner, we’ve been at the centre of the revolutionary changes that technology has brought to every aspect of life and we continue to stand by their side at the centre of tomorrow’s digital transformations.

Microsoft Solutions Partner

Our partners

We have successfully built relationships with multiple partners that prepare businesses for the future.

Carbon management

We understand our environmental responsibilities as a UK business and IT Managed Service Provider, and we understand how important it is for our customers to partner with responsible providers.


Our team is made up of a diverse group of people from all around the world, and we all have one thing in common: we’re passionate about providing our customers with outstanding solutions.

Thinking of selling your IT business?

Core is a well funded Microsoft Solutions Partner with a 30 year history of being at the heart of control in IT.

We are supported by our bankers and have funds available for strategic business acquisitions. Together with our successful acquisition track record and a commitment to making deals happen, now is the perfect time to talk to us if you are considering selling your IT business.

If you are interested in discussing a potential exit of your IT business, please complete the form on the right. All correspondence will be treated in the strictest of confidence and a mutual non-disclosure agreement will be exchanged prior to any discussions taking place.

Interactive Microsoft workshops

Our workshops are designed to help you realise the value of Microsoft technologies in your business, gain real value from your investment and transform the way you work.

The workshops are a collaborative and immersive experience; our experts will work with you to identify your business objectives and establish the Microsoft technologies to help you achieve them.

Request a workshop

Our range of workshops covers every aspect of the modern workplace including productivity, collaboration, identity, security and compliance and communication, with interactive and engaging sessions that bring the art of the possible to life.

Download our workshop guide

Read more about the interactive workshops we offer, and how they can benefit your business by downloading our guide.

MCI Workshop Introduction

Managed Services

Discover why Core is the first choice for many organisations looking to add flexibility, efficiency, and expertise to their teams.

Cloud Technology

From Microsoft’s leading platforms to bespoke cloud solutions, Core’s range of cloud technology solutions covers everything the modern workplace needs.

Professional Services

Whichever challenges you face on your digital journey, Core's professional services team has a solution to help, from IT Project Management to our innovative Smart Services.

Public Sector

Certified secure solution for the public sector, providing a reliable, flexible, secure and affordable IT solution.

Commercial Sector

Certified commercial sector solutions, covering all your commercial needs from financial and legal services, through to manufacturing.

Download our Frontline Workers white paper

Learn how technology can help to balance productivity with wellbeing for Frontline Workers.

White paper: How technology is revolutionising the health and productivity of frontline workers

Why customers choose us

Since we were founded in 1990 and started our Microsoft journey, we have supported over 10,000 customers on their communications and collaboration projects, and with the introduction of Microsoft's cloud technology, have grown our capabilities significantly across Microsoft 365 and Azure.

What sets us apart is a talented and passionate team who truly love what they do, demonstrating boundless enthusiasm and dedication in every single project.


"It was apparent from day one that Core had a depth of knowledge in Microsoft 365, which we simply hadn’t found anywhere else."

Greater London Authority

"Core has a lot of experience working with the public sector, which was definitely a benefit."

Angel Trains

"There’s such a good working relationship with Core, it’s like having another permanent person in our organisation."


"We had a really good, down to earth relationship with a few of the guys, and they know what they are doing."

Read our latest blog articles

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Future-Proofing Your Business: The Perils of Rushing into Copilot for Microsoft 365
AI for All: How Microsoft's Latest Update on Copilot Opens Doors for all Businesses

Defending Against Modern Cyber Threats with Managed Services
The Core knowledge hub

Stay up-to-date with the latest insights, trends, and discussions from Core's team of subject matter experts through our blog topics and news articles.

Core NewsroomMay 27, 2022 1:20:06 PM2 min read

Press Release: Core appoints new Non-Exec Chairman

Core Technology Systems bolsters senior management team with the appointment of former Managing Director of Advanced 365, Neil Cross, as Non-Executive Chairman.

In May 2022, on track for 30 per cent YoY revenue increase, Core has appointed Neil Cross, former Managing Director of Advanced 365, as Non-Executive Chairman to support the senior management team in their accelerated growth and business maturation goals.

Cross’ experience includes serving as Managing Director of Chorus Software for 22 years, transitioning the business through a number of acquisitions and serving on the board of Computer Software Group for five years following its acquisition of Chorus. After taking a year out to travel with his family, Cross returned to take on the role as Managing Director of Business Systems Group (BSG) in 2009, following its acquisition by Advanced Computer Software Group earlier that year.

Having managed a business unity with over 300 employees and a managed services turnover of more than £50 million, Cross brings a wealth of knowledge and experience to help unlock the potential of the senior management team, and wider business, as Core accelerates on its acquisition path in 2022.

Cross’ experience at Advanced 365 included the successful integration of a number of acquisitions, whilst at the same time, supporting his team with the consolidation of a number of bespoke client platforms into a single ‘build it once’ cloud environment that contributed to Advanced 365’s significant growth. With goals to expand its geographic footprint and Microsoft modern workplace capability, Core has identified potential acquisition targets in 2022 and will utilise Cross’ merger and acquisition experience to drive this agenda.

Core CEO, Conor Callanan, commented, “I’m pleased to bring Neil into the #OneCore family to help us achieve our goals of accelerated growth, both strategic and organic, as well as utilising his experience in maturing businesses for sustainable growth through strategic investment. We’re a close-knit family at Core, with excellent talent retention. We have a number of employees who have been with us for a long time and know our business and our customers really well, but it’s also good for us to have some new blood in the team. I believe Neil will help us to think differently and be able to innovate faster so we can better serve our customers.”

Cross responded, “I am grateful for the warm welcome from the Core team, and I’m looking forward to what we will achieve together. I’m thrilled to be able to support the Core team in the accelerated achievement of their goals. I am selective about who I choose to work with, and I genuinely believe in the potential at Core.”