Top 10 IT Companies in London 2023


London is one of the leading technology hubs in the world, and home to some of the most innovative and dynamic IT companies. With the rise of digital transformation and advancements in technology, the demand for top IT companies in London has never been higher. From cutting-edge software and hardware solutions to advanced data analytics and artificial intelligence services, these IT companies are shaping the future of technology and providing valuable services to businesses and consumers alike.

The city is home to many of the world’s largest and most innovative IT companies, which contribute significantly to the economy and provide employment opportunities for skilled professionals. In this blog, we’ll look at the top 10 IT companies in London that are equipped with highly skilled developers, designers, and marketers specialized in software development, web development, web design, UI/UX design, digital marketing, branding and more.

1. Accenture

Accenture is a multinational professional services company that provides a range of IT and management consulting services to clients across various industries. With its headquarters in Dublin, Ireland, Accenture has a strong global presence, with operations in over 200 cities worldwide. This IT Company has a strong presence in London with a large workforce of over 50,000 employees. Since its founding in 1989, Accenture has grown to become one of the largest and most influential IT companies in the world with a focus on innovation and digital transformation.

Accenture helps its clients stay ahead of the curve in the ever-evolving technology landscape, providing them with the expertise and resources they need to succeed in the digital age. Accenture is known for its innovation and focus on digital transformation, and it has won numerous awards for providing consulting, technology, and outsourcing services to a wide range of industries.

2. Silicon Reef

The UK-based Silicon Reef was established in 2016 and has offices in Chester, London, and Bournemouth and is also a provider of Microsoft 365 solutions and SharePoint development. This IT Company in London provides a variety of IT services, including web and app development, full-scope development partnerships, and extensive tech migrations and strategic road planning.

Silicon Reef focuses on helping companies transition to digital solutions that are tailored to the workplace settings and cultural norms of its employees. They provide strategic road mapping, mobile app development and full-scope development collaborations whereas they have expertise in the Microsoft stack.

3. IntellectSoft

Established in 2007, IntellectSoft offers cutting-edge solutions and IT services to businesses in a range of sectors, including fintech, automotive, logistics, healthcare, and e-commerce. The programmers at IntellectSoft assist businesses in creating technological solutions. They have years of practical experience in the development of custom software.

They offer enterprise AI solution development, blockchain development, IoT solutions, and IT consultancy. At IntellectSoft, skilled marketers, designers, and developers support organisations by accelerating the adoption of cutting-edge technology into their systems and addressing difficult technical problems. This UK-based IT company offers ongoing technical support and cultivates lasting connections with its partners.

4. Capgemini

Capgemini is a global professional IT company, headquartered in Paris, with a strong presence in London. The company specializes in providing digital transformation services to organizations across various industries, including consulting, technology, and outsourcing services, to clients across various industries with a focus on helping organizations improve their digital capabilities and drive innovation.

Founded in 1967, the company has grown into one of the largest and most respected IT service providers in the world, with over 40,000 employees in London, making it one of the largest IT companies in London.  With a strong commitment to sustainability, diversity, and inclusion, Capgemini is dedicated to delivering high-quality services and making a positive impact in the communities where it operates.

5. Akkodis

A global pioneer in engineering and R&D, AKKA & Modis, which will be soon rebranded as Akkodis, is using the power of connected data to speed up innovation and digital transformation. In 30 countries, 50,000 engineers and digital specialists with a common love for technology and talent provide in-depth cross-sector experience. Akkodis has deep industry expertise in areas including robotics, artificial intelligence, software & technology services, mobility, testing, simulations, data security, and data analytics.

6. iTechArt

Since 2002, iTechArt has provided venture capital funding to startups and tech companies so they can develop profitable and scalable technology. In addition to its headquarters in New York, iTechArt also has operations in London and other locations all over the world. They produce dependable online and mobile tech solutions thanks to their talented engineers.

The skill base of iTechArt includes more than 1600 engineers and web designers with proficiency in all modern technologies. iTechArt, which has created specialized teams in AR/VR, DevOps, Big Data, and mobile apps, focuses mostly on agile app development. The range of services they provide includes web and mobile apps, custom software development, DevOps, IoT solutions, AR/VR development, cloud computing, apps built on blockchain technology, and apps powered by AI.

7. IBM (International Business Machines Corporation)

IBM provides IT services, hardware, and software, to businesses and governments worldwide. IBM is headquartered in Armonk, New York, with a strong presence in London. They provide a range of services, including technology, consulting, and outsourcing to clients across various industries. IBM has over 10,000 employees in the UK, making it one of the largest technology companies in the country.

With over 100 years of experience, IBM has established itself as a leader in the technology industry and is known for its innovative and reliable technology solutions. IBM’s product portfolio covers a wide range of areas, including cloud computing, artificial intelligence, blockchain, and quantum computing. IBM has a reputation for delivering high-quality services to its clients and continues to be at the forefront of technological advancements.

8. Oracle

Oracle is an IT company that specializes in developing enterprise software products and marketing computer hardware systems. The company has a significant presence in London and provides a range of products and services to businesses of all sizes. Oracle is famous for its databases, which are used by many of the world’s largest companies, as well as its cloud computing services.

Founded in 1977, Oracle has grown into one of the largest and most influential IT companies in the world, with a presence in more than 140 countries. Oracle’s product portfolio includes a wide range of software solutions for businesses of all sizes, including database management systems, cloud computing services, and enterprise resource planning software. The company has a strong reputation for delivering innovative and reliable technology solutions, and it continues to be a leader in the IT industry.


DEPT is one of the highly regarded IT companies in London that is dedicated to helping businesses thrive in the digital world. With its focus on creativity, innovation, and expertise, DEPT is well-positioned to provide clients with the digital solutions they need to succeed in today’s fast-paced and ever-evolving digital landscape.

DEPT has a team of experienced professionals including developers, designers, and digital markets who bring a wealth of knowledge and expertise to every project. They collaborate closely with clients to fully comprehend their goals and requirements before developing unique solutions that boost organisations’ chances of success. Whether it’s creating a new website, launching a digital marketing campaign, or developing a mobile app, or creating a new design DEPT has the skills and experience to help clients achieve their goals.

10. Microsoft

Microsoft has grown to become a leader in the development of computer software, hardware, and related services. Microsoft is an IT company that licenses, develops, and sells consumer electronics, personal computers, and computer software. The company has a great presence in London, with multiple offices citywide and thousands of employees.

From its flagship Windows operating system and Office productivity suite, to its Azure cloud computing platform and cutting-edge Surface hardware devices, Microsoft offers a wide range of products and services that are used by millions of people around the world. With a commitment to innovation and a focus on empowering individuals and organizations to achieve more, Microsoft is at the forefront of the tech industry and continues to shape the future of technology. In recent years, Microsoft has also invested heavily in cloud computing, artificial intelligence, and the Internet of Things, making it one of the most innovative companies in the world.

Final Words:

The IT industry in London is thriving, with many of the world’s largest and most innovative IT companies in London having a strong presence in the city. These companies play a significant role in the economy, providing employment opportunities for skilled professionals and driving innovation in the tech sector. From Accenture to IBM, the top 10 IT companies in London are equipped with highly skilled engineers, developers, web designers, and marketers that help to offer a wide range of services and solutions, from consulting and technology services to hardware and software products.

These companies are committed to delivering high-quality services to their clients and promoting diversity and sustainability in the workplace. With the continued growth and development of the IT industry in London, the future looks bright for these IT companies in London and the tech sector as a whole.

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