<img height="1" width="1" style="display:none" src="https://www.facebook.com/tr?id=111591952803728&amp;ev=PageView&amp;noscript=1">
Skip to content
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 Automation & AI 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 our 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

Harnessing Evergreen IT Services for Strategic Advantage

Maximising Savings on Azure with Core’s Gain-Share Offer
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
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.

Carbon Management

About us

Carbon Management


At Core, we understand our environmental responsibilities as a UK business and IT Managed Service Provider.

We understand how important it is for our customers to partner with responsible providers.

We must all do our part to look after our planet; to acknowledge the climate crisis and channel it into climate action. Modern technology is emerging every day, and we are in a fortunate position to be supported by our key supplier, Microsoft, with their pledge to be carbon neutral by 2030 and support their partners with innovation and progress reporting. That’s why Core’s carbon management approach is threefold.


“At Core Technology Systems, we are committed to offsetting our internal carbon usage and working towards the Net Zero goals in line with Microsoft, with the support of our partners and suppliers. We are committed to leading by example, and encourage our customers to do the same, as we launch our new carbon offset managed desktop solution and broader sustainability program in 2022.”

Conor Callanan
Chief Executive Officer



Our Carbon Management proposition


Reducing our carbon output


By leveraging Microsoft’s cloud infrastructure and services, Core utilises Microsoft’s mature carbon management program.

As a result of eliminating our need for private data centres, we have significantly reduced the volume of carbon our business creates.

As a result of using shared, hosted office space, we also benefit from our office provider’s carbon program. Our remote working policy also means that less emissions are produced through our reduction in staff commutes.

We are happy to meet customers face-to-face if that is their preference, but we encourage video call meetings where possible to reduce carbon emissions, and our customers generally ask for calls rather than face-to-face meetings.


Offsetting our carbon usage and helping customers do the same


A sizeable portion of any business’ carbon footprint stems from user devices.

Our use of End User Compute platforms means that even the logistics processes we use to provide our employees with hardware are as efficient as can be. In 2022, we are launching our carbon offsetting program for customers, and leading by example by pledging to plant trees to offset the minimal carbon each employee managed desktop creates.

We have partnered with experts in the field to evolve a robust and long-term program to encourage customers and partners to take action to offset their carbon use and where possible, set targets to achieve net zero targets.

We understand how important it is for our customers to demonstrate their efforts towards carbon offsetting. As such, we are offering our customers an uncomplicated way to offset the carbon their employees create. If you’re interested in speaking to one of our Account Managers about carbon offsetting for your users, either as an add-on service, or a standalone product, please get in touch.


Carbon management tooling


To support our customers’ journey towards carbon offsetting, part of our sustainability program includes giving our customers access to a dynamic reporting platform that helps businesses align business practises to targets, including net zero trajectories.

The dynamic reporting can help to meet regulatory carbon footprint requirements, product lifecycle analysis, and simplifying carbon calculations.

Our efforts towards minimising the impact our business has on the environment primarily focuses on assessing, calculating, reducing, and offsetting the carbon we create. Responsible practises are embedded into Core’s values. We have a responsibility to our customers to provide effective measures to reduce the impact of digital services, and we are committed to providing a workplace and business our employees are proud to be a part of. We are committed to providing future generations with opportunities to have a significant impact on the way businesses operate, with a small impact on the environment.

CEO of Core, Conor Callanan, sums up our commitment:

“We’re at a pivotal moment for our business, and as we grow, we want to do it sustainably, for both the future of our environment, and for our future. Whilst climate change presents many challenges, we believe that there are also many opportunities for businesses to create efficiencies and improve productivity and impact through assessment of their processes, supply chain and carbon footprint.”
“At Core, we have the opportunity to help other businesses create a better future, and we’re keen to take a leadership position in helping to unite companies in our industry to think differently and make a difference together.”

We are a Microsoft Cloud Managed Service Provider, specialising in Microsoft 365 technology

We help businesses transform through technology, and provide value-added support for solutions built on the Microsoft Platform. We listen to your needs and understand them, so you can achieve the required outcomes effectively.

Powered by Microsoft, we provide solutions that connect, secure and transform your business, improving the way you work and enabling you for future growth.

As a Microsoft Solutions Partner, we are supported by Microsoft to lead the UK programme of technology-enablement workshops, with proven technical capability demonstrated via our solution designations.

Since the foundation of our business in 1990, 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 our #OneCore inclusive culture of talented and passionate team members who truly love what they do, demonstrating enthusiasm and dedication to customer success in every single project.

Microsoft Solutions Partner


What our customers say about us

Simon BealeIT Development Manager, Angel Trains
The team at Core are excellent. We enjoy working with them and they have experts in a wide variety of fields so can help with most projects we need assistance with.
Angel Trains
Alistair TriggIT Manager, Hart District Council
Core provides really cost-effective and flexible support in a model that works really well for Hart. Through Core’s implementation of advanced infrastructure projects, we’ve been able to offer a better experience for our communities, with the appropriate security and compliance we required.
Jane LoveseyProgramme Manager, Six Degrees

Core have been outstanding to work with. They really listened to what we were trying to do, talked through all of their ideas, and fully explained the pros and cons involved while taking into account our long-term business goals.


Tom BradyChief Information Officer, The University of Law

Over the years, Core and the University of Law have built a strong relationship based on trust, expertise and knowledge. Core has always listened to and addressed our specific needs, before tailoring a specific and precise solution, whether that be delivering a successful SharePoint Online project, or when approached for some guidance or advice around Dynamics 365 licensing. We very much look forward to collaborating on future projects with Core.


Stephen WarrenImplementation Manager, David Lloyd Clubs

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

With pre-purposed training modules and the ability to tailor training to our specific needs, Core ticks all the boxes. What may have taken weeks to prepare by way of training materials, instead took only days.


Rob LeverSenior IT Operations Manager, Cornerstone

Core have helped us with various projects, from initiation to delivery for web development to app deployments, and they have always shown a high level of expertise and creativity. Core is not just a solution provider, they are also a trusted advisor who take time to understand our needs and goals to ensure our investment delivers value to the business. In an age where supplier engagement can be painful, it has been a pleasure working with Core since the outset!


Let's talk

For more information about Core or to discuss your project, contact our friendly experts today.