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Top London Information Technology Companies (987)

Cloud • Fintech • Food • Information Technology • Software • Hospitality
10 Offices
4,500 Employees

Toast is the all-in-one platform built for restaurants of all sizes. Toast provides a single platform of software as a service (SaaS) products and financial technology solutions that give restaurants everything they need to run their business, including point of sale, payments, supplier management, digital ordering and delivery, marketing and loyalty, and team management. By serving as the restaurant operating system across dine-in, takeout, and delivery channels, Toast helps restaurants increase revenue, streamline operations and deliver amazing guest experiences.


Aerospace • Hardware • Information Technology • Security • Software • Cybersecurity • Defense
19 Offices
40,000 Employees

Improving the future and protecting lives is an ambitious mission, but it’s what we do. As a leading aerospace, defense, and security company, we work together to deliver a full range of products and services for air, land and naval forces, as well as advanced electronics, security, information technology solutions and customer support services. How we work, is rooted in purpose – a purpose to protect those who protect us, to unite our community of colleagues and customers, and to drive forward the growth and development of our exceptional team members. It's where purpose connects.


Cloud • Fintech • Information Technology • Machine Learning • Software • App development • Generative AI
17 Offices
1,810 Employees

BlackLine gives you the innovation of AI-powered software solutions you need to optimize workflows, reduce risk, and prepare for tomorrow’s strategic F&A challenges. BlackLine is the leader in the cloud financial close market and the first and only holistic solution to address intercompany operations. Companies can execute and manage financial close, intercompany, and invoice-to-cash processes with end-to-end transparency and intelligent automation. They can shift their focus from governance to guidance and deliver strategic business outcomes faster and with greater control. Since our founding in 2001, BlackLine has become a leading provider of cloud software that automates and controls critical accounting processes. BlackLine is ranked No.5 globally on The Software Report’s 2023 ‘Top 100 Software Companies’ list and earned ‘Top Rated’ awards in Accounting, Financial Close, and Accounts Receivable from TrustRadius. BlackLine was also named to Newsweek’s ‘Most Loved Workplaces’ lists in the US (2022) and UK (2023).  BlackLine is trusted by thousands of companies across all industries and geographies. Headquartered in Woodland Hills, CA, BlackLine is a global company with operations in locations including Pleasanton, New York, London, Paris, Bengaluru, Frankfurt, Tokyo, Singapore, and Sydney. Leading companies like SiriusXM and Domino’s trust BlackLine to close faster with complete and accurate results.


Fintech • Information Technology • Mobile • Payments • Software • Financial Services
10 Offices
2,700 Employees

Want to feel truly valued at work? Check out Q2! Our unique company culture and super-hero employees, are what sets us apart. We know how to get it done and still have fun! Q2 builds the leading mobile banking software platform serving Credit Unions, Banks (large and small), Community Banks and Financial Institutions. Our mission is to build stronger and diverse communities by strengthening their financial institutions. Q2 prioritizes innovation, collaboration and celebrating our employees who make our mission successful. Q2 is a national "Best Place to Work" Award winner 3 years running! Join our "Circle of Awesomeness"! #Q2Peeps


Cloud • Consumer Web • eCommerce • Information Technology • Software
6 Offices
1,500 Employees

BigCommerce’s mission is to help merchants sell more at every stage of growth, from small startups, to mid-market businesses, to large enterprises. As a leading Open SaaS solution, BigCommerce empowers merchants to build, innovate and grow their businesses online. Simply put, we focus on being the best commerce platform so our customers can focus on what matters most: growing their businesses. If you’re looking for the challenge of an innovative company with the opportunity of a career-enhancing business, a people-centered culture, and outstanding benefits this is the place for you!


Artificial Intelligence • Cloud • Information Technology • Security • Software • Cybersecurity • Data Privacy
4 Offices
330 Employees

We are a cybersecurity software company. Coro’s AI enabled Modular Cybersecurity Platform is the only one in the industry specifically designed to provide Mid-Market customers with scalable and affordable “enterprise grade” protection for all of their priority threat vectors. Our platform has aided us in being able to raise $100 million in Series D funding in March of 2024, bringing the total funding raised to $255 million over the last 24 months, and acquiring our first company, Privatise. The funding is primarily being used to enhance the Coro Cybersecurity SaaS platform and for additional headcount growth, as Coro continues to expand globally. Looking to IPO in the next few years, it is a great time to join a fast-growing pre-IPO organization.


Cloud • Information Technology • Security • Software • Cybersecurity
9 Offices
3,900 Employees

Cloudflare, Inc. (NYSE: NET) is the leading connectivity cloud company on a mission to help build a better Internet. It empowers organizations to make their employees, applications and networks faster and more secure everywhere, while reducing complexity and cost. Cloudflare’s connectivity cloud delivers the most full-featured, unified platform of cloud-native products and developer tools, so any organization can gain the control they need to work, develop, and accelerate their business. Powered by one of the world’s largest and most interconnected networks, Cloudflare blocks billions of threats online for its customers every day. It is trusted by millions of organizations – from the largest brands to entrepreneurs and small businesses to nonprofits, humanitarian groups, and governments across the globe.


Gaming • Information Technology • Mobile • Software
12 Offices
6,500 Employees

Headquartered in New York City, Take-Two Interactive Software, Inc. is a leading developer, publisher, and marketer of interactive entertainment for consumers around the globe. We develop and publish products principally through Rockstar Games, 2K, Private Division, and T2 Mobile Games. Our products are designed for console systems and personal computers, including smartphones and tablets, and are delivered through physical retail, digital download, online platforms, and cloud streaming services.


Artificial Intelligence • Information Technology • Machine Learning • Security • Software • Cybersecurity • Generative AI
8 Offices
850 Employees

Exabeam is a global cybersecurity leader that delivers AI-driven security operations. High-integrity data ingestion, powerful analytics, and workflow automation power the industry’s most advanced self-managed and cloud-native security operations platform for threat detection, investigation, and response (TDIR). With a history of leadership in SIEM and UEBA, and a legacy rooted in AI, Exabeam empowers global security teams to combat cyberthreats, mitigate risk, and streamline security operations. Learn more at www.exabeam.com.


Artificial Intelligence • Cloud • Information Technology • Legal Tech • Productivity • Software
8 Offices
980 Employees

iManage is dedicated to Making Knowledge Work. Over one million professionals across 65+ countries rely on our intelligent, cloud-enabled, secure knowledge work platform to uncover & activate the knowledge that exists inside their business content and communications. We are continuously innovating to solve the most complex professional challenges & enable better business outcomes. Our work is not always easy but it is ambitious & rewarding. We are a people-first company where our employee's wellbeing is our #1 priority! That’s why we offer generous paid time off, private benefit packages that include Health/Vision/Dental/Life, plus our employee assistance program (EAP) and HealthyMinds app to support your mental health and wellbeing. We realize that work is more than just a paycheck; it’s an important part of living and growing. We strive to have a positive impact on families and a commitment to creating an organization where everyone can thrive. We’re on a mission to foster an environment where everyone makes progress, innovates, and comes together as part of a best-in-class workplace. Everyone at iManage plays an important part in achieving our vivid future.


Cloud • Information Technology • Machine Learning
6 Offices
806 Employees

CoreWeave, the AI Hyperscaler™, delivers a cloud platform of cutting-edge software powering the next wave of AI. The company's technology provides enterprises and leading AI labs with cloud solutions for accelerated computing. Since 2017, CoreWeave has operated a growing footprint of data centers across the US and Europe. CoreWeave was ranked as one of the TIME100 most influential companies and featured on Forbes Cloud 100 ranking in 2024. Learn more at www.coreweave.com.


Cloud • Information Technology • Security • Software
2 Offices
230 Employees

LogicGate® is a global leader in transformative risk management and compliance solutions. Our award-winning Governance, Risk, and Compliance (GRC) platform, Risk Cloud®, is built with usability in mind, including a no-code interface and graph-database management, enabling customers to understand and navigate risks through a centralized framework. With an unwavering commitment to fostering business resilience in dynamic landscapes, LogicGate is actively driving innovation and creating strategic advantages for risk management in the business environment.


Artificial Intelligence • Information Technology • Natural Language Processing • Software • Business Intelligence • Generative AI
31 Offices
5,000 Employees

At Qualtrics, we create software the world’s best brands use to deliver exceptional frontline experiences, build high-performing teams, and design products people love. But we are more than a platform—we are the creators and stewards of the Experience Management category serving over 19,000 clients globally. "We are in the business of empowering organizations to really understand what people want, and then act on it with empathy, speed, and scale. This is what Qualtrics Experience Management is really about." - Zig Serafin, CEO


Fintech • Information Technology • Insurance • Software
4 Offices
1,100 Employees

Simply Business is dedicated to making small business insurance simple and accessible. Our robust digital marketplace allows small business owners to find and buy the insurance they need online, matching them with coverage from multiple top insurers to offer choice, transparency, and value. We have nearly 20 years of experience supporting small businesses, with over 1 million customers worldwide. Founded in the U.K. in 2005, Simply Business launched its U.S. operations in 2017 and today employs over 1,000 people across offices in London and Northampton in the U.K., and in Boston and Atlanta in the U.S.Simply Business is more than our name. It’s how we approach small business insurance:


Artificial Intelligence • Big Data • Information Technology • Software
10 Offices
1,051 Employees

At Nexthink. we’re not just the leader in the digital employee experience management category, we invented the category. Our solutions combine real-time analytics, automation and employee feedback across all endpoints to help IT progress from reactive problem-solving to proactive optimization. We’re growing our teams around the world to create, scale, market, sell, and develop the future of digital employee experience to help IT teams everywhere delight people at work. We are 1,000+ employees strong in 9 offices worldwide, across 8 different time zones, speaking 60+ languages. We are passionate about technology, we are category disruptors, and we are motivated by the impact of our work on our end customers. We don’t take ourselves too seriously, and we wake up every day excited about shaping the way employees experience their digital workplace. Sound like you? Let’s talk!


Cloud • eCommerce • Information Technology • Professional Services • Software
5 Offices
400 Employees

Cleo is an ecosystem integration software company focused on business outcomes, ensuring each customer’s potential is realized by delivering solutions that make it easy to discover and create value through the movement and integration of B2B enterprise data. Cleo gives customers strategic, “outside-in” visibility into the critical end-to-end business flows happening across their ecosystems of partners and customers, marketplaces, and internal cloud and on-premise applications. Our solutions empower teams to drive business agility, accelerate onboarding, facilitate modernization of key business processes, and capture new revenue streams by reimagining and remastering their digital ecosystem through robust application, B2B, and data integration technologies. Cleo Integration Cloud (CIC) is a cloud-based integration platform, purpose-built to design, build, operate and optimize critical ecosystem integration processes. The CIC platform brings end-to-end integration visibility across API, EDI and non-EDI integrations that gives technical and business users the confidence to rapidly onboard trading partners, enable integration between applications, and accelerate revenue-generating business processes. On the platform, businesses have the choice of self-service, managed services, or a blended approach – ensuring complete flexibility and control over their B2B integration strategy. Cleo isn't just about EDI, iPaaS, API integration, or managed integration services. Rather we are about blending the best elements of these traditional integration technologies into a single platform, so organizations can connect and transact business across their entire ecosystem with complete confidence.


Artificial Intelligence • Fintech • Information Technology • Machine Learning • Financial Services
3 Offices
170 Employees

Canoe offers first-of-its kind AI technology powering the future of alternative investments. Canoe has reimagined the future of alternative investments with cloud-based, machine-learning technology for document collection, data extraction, and data science initiatives. We transform complex documents into actionable intelligence within seconds and empower allocators with tools to unlock new efficiencies for their business. Since the beginning, we’ve maintained a focused, client-first approach to building and enhancing our technology and will continue to do so. By introducing automation to alternatives document collection and data management workflows, institutional investors, wealth managers, and general partners are seeing dramatic improvements in data accuracy and access, team efficiency, and client satisfaction.


Cloud • eCommerce • Information Technology • Retail • Software • Database
7 Offices
700 Employees

commercetools founded the headless commerce concept, and is the industry-leading composable commerce platform enabling brands to adapt and lead evolutions in digital commerce. commercetools provides its customers with the agility and tools needed to innovate and iterate on the fly, merge on and off-line channels, take advantage of new markets, drive new and higher revenue-generating opportunities, and future-proof their eCommerce business –– without incurring technical and operational risks. Today, commercetools is trusted by some of the world's most iconic brands including Audi, Danone, Eurorail, NBCUniversal, Sephora and Volkswagen Group, and many more.


Consumer Web • Information Technology • Sales • Software
8 Offices
950 Employees

Hi. We’re Trustpilot. Trustpilot began in 2007 with a simple yet powerful idea that is more relevant today than ever — to be the universal symbol of trust, bringing consumers and businesses together through reviews. Trustpilot is open, independent, and impartial — we help consumers make the right choices and businesses to build trust, grow and improve. Today, we have more than 300 million reviews and 67 million monthly active users across the globe, with 127 billion annual Trustpilot brand impressions, and the numbers keep growing.


Cloud • Information Technology • Sales • Software
25 Offices
700 Employees

LeanIX is the single source of truth for Corporate IT and Product IT to enable organizations to continuously transform. LeanIX addresses the frequent problem, that the required information about the IT landscape is missing, outdated or difficult to analyze. LeanIX has two products, the Enterprise Architecture Suite (EAS) and the Cloud Native Suite (EAS). Use cases include Application Rationalization, Technology Risk Management, the shift from monolithic architectures to Microservices and the migration into the Cloud. More than 40 certified partners such as Deloitte, Cognizant and PwC rely on the dynamically-growing IT company co-founded in 2012 by LeanIX CEO André Christ. The company is headquartered in Bonn, Germany with additional offices in Boston, Massachusetts; Munich, Germany; Utrecht, Netherlands; and, Hyderabad, India. It has more than 300 employees worldwide.