Top Technology Companies in UK List by Market Cap as of August 2026

AstraZeneca is UK Based Pharmaceutical and Bio-Technology Company. They have done some advanced research on Oncology. In the fight against COVID-19, AstraZeneca is one among World Top 5 Companies which has done advanced phase of Covid-19 testing in collaboration with the University of Oxford. Headquarters is in UK.

AstraZeneca Product Sales of 43,789 million USD split by Disease Area for year ending Dec-2023

GLAXOSMITHKLINE is UK based multi-national Pharmaceuticals business and it has a broad portfolio of innovative and established medicines. GSK currently focus on developing new medicines in respiratory, HIV, oncology and immuno-inflammation; with an R&D approach focused on science related to the immune system, use of genetics and advanced technologies. Headquarters is in UK.

In 2021 GSK delivered 1.7 billion medicines, over 767 million vaccines* and 3.7 billion consumer healthcare products.

IHS Markit combines information, analytics and expertise to provide solutions for business, finance and government and improving their operational efficiency and providing deep insights that lead to well-informed, confident decisions. Headquarters is in UK.

In 2022, S&P Global and IHS Markit merger was complete. IHS Markit Acquisition price was 44 billion USD.

As on 2019, IHS Markit has 15,500 employees in over 24 countries.

nVent Electric is a provider of Electrical Connection and Protection Solutions company. It is a $2.1 billion high performance electrical company with a dedicated team of 9,000 people and trusted brands such as CADDY, ERICO, HOFFMAN, RAYCHEM, SCHROFF and TRACER. The headquarters is in UK.

Halma is Technology Company that makes products for hazard detection and life protection with headquarters is in UK.

Halma employs over 7,000 people in more than 20 countries, with major operations in the UK, Mainland Europe, the USA and Asia Pacific.

Halma defines the three broad market areas where they operate and they are Safety, Environment, Health.

Halma annual revenue generated for period ending Mar-2022 was 1,525 million GBP.

AVEVA Group is a Manufacturing Execution Systems and Information Technology company. It come up with computer software with engineering, markets, designs information management software. The headquarters is in UK.

Schneider acquired AVEVA for 11.6 billion USD in 2022.

As on 2022, AVEVA Group heighlights:

20,000 -customers

100 -countries

6,500 -employees

5,000 -partners

5,700 -certified developers.

Software company with headquarters is in UK.

Pentair is a Water Treatment Solutions, Water and Fluid Solutions, Constructions Materials company. The company products are pool, commercial pool and spa equipment, water treatment, filters, fire suppression, heating and cooling water equipment, industrial filtration, residential water treatment, spray nozzles, smart products, systems, tanks, valves, water supply pumps, water disposal pumps and accessories. The headquarters is in USA.

Computacenter is a independent provider of IT infrastructure services enabling users and their business in a digital world. It provides user support, supply chain management and secure provision of applications and data to support individual working styles and improve collaboration. The company operate infrastructure operations centers and group service desks across Europe, South Africa, Asia and the Americas from which employees provide user support in 30 languages. The headquarters is in UK.

Sensors manufacturing company with headquarters is in USA.