London skyline

Back to Directory

South East

IT Companies in London

Compare IT and cloud providers working in London. What the market looks like, how to narrow a very long shortlist, and when being local actually matters.

2141 Providers

Verified

Regularly updated

List Your Business Claim Listing

IT Providers in London

Showing 913–936 of 2141 providers in our directory

giffgaff

London

Back in 2009, giffgaff set out to challenge the status quo in telecoms. We simply believed that people deserved better. With a mindset rooted in mutuality, we tore up the rule book in pursuit of creating a mobile service provider that people loved. Delivering value, flexibility and simplicity for our members became our obsession, in a way that was truly sustainable. Today we describe that as being ‘Up to Good.’ We’ve shown a restless energy for positive change, transforming the mobile market with fair prices, honest contracts and planet-friendly products and services. In 2023, 70% of phones sold by giffgaff were refurbished, which is a win for our members’ pockets and for the planet too. We champion great value connectivity that’s flexible and fair for everyone, helping our members to connect to the people and things they love. As a proud B Corporation, our success is defined not only by our commercial performance but also by our contribution to UK society. It’s our commitment to act for the common good and for the long term. It’s how we’ll create a future where our planet is cared for, our members and our people feel supported and included, and communities can flourish. In fact, the word “giffgaff” is Scots for “mutual giving”. Rolls right off the tongue, don’t you think? If you like the sound of us and would like to join our team, then check out our latest jobs.

Pie

London

Boring and confusing at best, anxiety-inducing at worst, doing taxes isn’t at the top of many (possibly, any) to-do-lists. But they do need doing. And they need doing right. That’s why we’ve made helping you take control of your taxes our priority. Pie aims to democratise tax for the masses, with everything you need to manage your taxes without anxiety in one easy-to-use and beautifully designed app.

Research Grid (R.grid)

London

Research Grid (R.grid) are the experts in automating clinical trials. They have developed two industry-leading products leveraging its AI-native automation engine to make trials admin free. Together, these solutions, Inclusive and TrialEngine, form the only end-to-end AI platform to automate the back-office of clinical trials, from pre-trial to trial close. Both are designed to tackle trial management bottlenecks and automate manual processes, supporting their mission of making clinical trials faster and more successful.

Simplestream

London

Simplestream is revolutionising content distribution. We have enabled clients across Sports, Broadcasters, Telcos and Content Producers to deliver their content directly to consumers across platforms in both Live and VOD capacities. With event streaming, simulcasting, real-time video clipping, catch-up creation and VOD management you can be confident that our platform is delivering your viewers the best experience. We develop all of our solutions in-house and have a dedicated team of 35, all based at our central London office; with 24/7 support, optional training and onsite technical assistance at the client’s premises. Contact us through our website or sales@simplestream.com for more information or to arrange a demo.

Commercis Plc

London

With over three decades of experience in the communications and technology sector, Commercis has established itself as a trusted leader in delivering global connectivity, technology solutions, and strategic consulting. As a firm with a truly international footprint, we help organizations navigate the complex landscape of digital infrastructure—connecting people, systems, and markets across continents. Our ever-expanding network of partnerships with industry-leading technology providers enables us to deliver cutting-edge, future-ready solutions that address the complex and evolving needs of our clients. From next-generation satellite and terrestrial infrastructure to hybrid networks and cloud-integrated systems, we leverage the latest advancements in technology to ensure seamless, resilient connectivity. At the core of our offering is a strong focus on cybersecurity, ensuring that all solutions are designed with security and data integrity as a priority. We provide end-to-end capabilities—from design and implementation to proactive monitoring and lifecycle management—creating high-performance, secure communication networks that support mission-critical operations around the world. With deep technical expertise and a forward-looking approach, Commercis empowers clients to stay ahead in an increasingly connected and digital world. At the heart of our business is a commitment to best-in-class service and technical support, delivered by a global team of experts. From initial consultation through deployment and long-term operations, Commercis is your ideal partner in achieving seamless, scalable, and secure connectivity worldwide.

Design Supply Ltd

London

Design Supply one of the most successful independent reseller for the biggest large format printer brands in the UK. Our experience and know-how in large format printers means we specify the right piece of kit to do a great job, on time and on budget. Our customers save time, money and resource working with us for all their printing needs; hardware, paper, media and stationery supplies. Specialties Our team of people have all the expertise you need.

MMCG Consultancy Services LTD

London

We’re a mission-focused consultancy that turns strategy into action and ambition into reality. From digital transformation and innovation to business analysis, change and training, we deliver the capabilities organisations need to lead with confidence. Our work creates a visible Golden Thread between ambition and outcomes, connecting vision to delivery in a way that’s practical, agile, and built to last. If you’re solving complex problems or scaling what works, we bring the clarity, pace and hands-on expertise to make it happen. As a Digital Transformation Delivery Partner, we provide end-to-end delivery leadership, from defining strategic direction through to implementation and assurance. Our integrated capabilities include: - Portfolio, Programme & Project Management (P3M) - Business Analysis & Research - Business Change - Training & Capability Development - Strategy & Transformation

AAG (Alfred Ashley Group Ltd)

London

Computer Support, Business Phone Systems, Cloud, VoIP and Network Security in London, Cirencester, Cheltenham, Portsmouth and South West England. What do we do? IT, Telecoms and Tech - Cloud and on premise. Supply, Installation and Support; Hardware, Software, Servers, PCs, Laptops, Workstations, Network Equipment, Printers, Scanners, Photocopiers, Telephone Systems, Handsets, Phone lines (PSTN/ISDN), ADSL / Broadband lines, Business mobile, Email and Internet Services. Where do we operate? London, Cirencester, Cheltenham, Gloucestershire, Wiltshire, Hampshire, Oxfordshire and Northwest England are home to the majority of our clients. We also have clients nationally with employees around the globe - experiencing the same level of service. Who are our customers? Companies with 5 to 55 staff who require proactive good advice, efficient equipment supply and high quality support - in these industries: Solicitors, Accountants, Care Homes, Interior Designers, Architects & Designers, Consulting Engineers, Advertising Agencies, Media Agencies, Insurance & Financial Services, Quantity Surveyors, Estate Agents, Legal Profession, Medical Profession, Retail, Distribution & General Small to medium size business / SME / SMB.

xenscope

London

xenscope is a subscription-based property intelligence platform delivering high-accuracy data to power smarter decisions across the energy transition and social impact sectors. Our platform enables: - Renewables Marketing & Targeting – Identify and engage the right properties for solar installations, air source heat pumps (ASHP), and other green technologies with precision targeting that maximises conversion rates and removes uncertainty with mass direct marketing. - Fuel Poverty Initiatives – S

Identiom

London

Outsourced IT Services for Professional Services, Asset Management firms & High-Net-Worth Individuals

IT Support Birmingham & London

London

Top‑tier IT support Birmingham specialists offering proactive, reliable solutions to keep systems running smoothly, tailored IT network support. Contact us now

Lobsternet

London

HOME

Pconet

London

Pconet delivers Operational Technology (OT) engineering and cybersecurity solutions for mission-critical environments, specialising in OT network architecture, asset onboarding, system validation, and OTZK security deployments.

Procureus

London

Procureus Ltd provides trusted IT network and security hardware and software to businesses across the UK.

Quality IT Support

London

Our IT Support Services IT support Disaster recovery Network security Cloud computing voip-phone Microsoft 365 remote working IT CONSULTANCY

Direction Forward

London

Digital deciphered. We work with you on how to best leverage digital technologies to deliver maximum value.

Fluid IT

London

We deliver dedicated IT support to our clients; support that’s transparent, accountable and enables them to do the work that they do best. As your Managed Service Provided (MPS) we can take care of all your licencing, procurement and cyber security r

FN IT

London

FN IT offers top-notch IT services, including IT support, network solutions, and technology services tailored for your business needs.

Gelada Networks

London

The premier AI-driven Managed Service Provider (MSP) based in London. Intelligent IT solutions, Cybersecurity, and Cloud infrastructure for small businesses.

Managed IT, AI & Microsoft 365 Solutions

London

Managed IT services & cloud technology transform your business into a modern workplace. AI & Automation, Data, IT support, Microsoft 365 & cyber security.

PC & Apple Mac Support London EC1

London

PC Support and Apple Mac Support London- Them Digital specialise in a full range of computer services including maintenance, IT sales, hosted services, networkinig and consultancy to clients in EC1, Islington and Central and Greater London

Chip Systems

London

Chip Systems provides personalized IT service management and support, scaled to suit your business needs.

Pure Technology

London

Pure Technology is a UK-based IT services provider offering managed IT support, cloud voice, connectivity, security, and data backup solutions. They serve various industries including professional services, legal, hospitality, media, and education.

IMATIK

London

Lead your organisation into the new era of technology - Cloud Networking | Cyber Security | Intelligence. Learn more about IMATIK & Cisco today.

Search All 2141 Providers

Based in London?

Get listed and reach businesses in South East looking for IT services.

Submit Your Listing Learn More