Top Tech Companies in London (5,271)

CSC is a global leader in providing business, legal, tax, and digital brand services to companies around the world. With more than 8,000 employees, CSC operates in more than 140 jurisdictions, delivering solutions that help businesses thrive. We pride ourselves on our client-focused approach, market-leading expertise, and unmatched global reach.

As businesses increasingly rely on data to power digital products and drive better decision-making, it’s mission-critical that this data is accurate and reliable. Monte Carlo, the data reliability company, is the creator of the industry's first end-to-end Data & AI Observability platform. Named an Inc. Best Workplace for 2024, a DBTA Readers Choice for Best Data Observability Solution for 2024,...

By automating and streamlining common accounting workflows to make them more efficient, FloQast is where accounting teams want to work so they can focus on what matters most, even when that’s just logging off on time. Whether automating reconciliations, documentation requests, or streamlining recurring accounting processes, such as the month-end close, financial reporting, or payroll, FloQast's platform enhances the way...

Fusion Risk Management is recognized as the most innovative and fastest growing provider of cloud-based enterprise software for business continuity risk management, IT disaster recovery and crisis management. Fusion is transforming the industry and has been named a leader in Gartner's Magic Quadrant for Business Continuity Management software.

Comcast Advertising is driving the TV advertising industry forward, from delivering ads to linear and digital audiences to pioneering the tech that makes it possible. We help brands connect with their audiences on every screen using advanced data. Just as important as our work is our inclusive and supportive culture, which has earned us recognition as one of the top...

GumGum is a contextual-first, global digital advertising platform that uses advanced AI technology to serve captivating creative ads that drive consumer attention, without the use of personal data. At GumGum, we don’t need to know who you are to deliver relevant and engaging ads that align with your active frame of mind. We believe that a digital advertising industry based...

LogicMonitor® is the AI-first hybrid observability platform powering the next generation of digital infrastructure. LogicMonitor delivers complete visibility and actionable intelligence across on-premises, cloud, and edge environments. By anticipating issues before they strike, optimizing resources in real time, and enabling faster, smarter decisions, LogicMonitor helps IT and business leaders protect margins, accelerate innovation, and deliver exceptional digital experiences without compromise....

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...

Citadel Securities is a technology-driven, next-generation global market maker. We provide institutional and retail investors with world-class liquidity, competitive pricing and seamless front-to-back execution in a broad array of financial products. Our teams of engineers, traders and researchers harness leading-edge quantitative research and the accelerating power of compute, machine learning and AI to power our analytics and tackle the market’s...

Nexthink is the global leader in digital employee experience management. Our platform empowers IT teams with real-time visibility, analytics, and automation to proactively detect and resolve issues across any application, device, or network—before they affect employees. By shifting IT from reactive problem-solving to continuous optimization, Nexthink enables more than 1,300 organizations to create productive, seamless, and satisfying digital workplaces for...

At Starburst, we are working to dismantle the status quo of data silos and vendor lock-in every single day. Starburst offers a full-featured data lake analytics platform, built on open-source Trino. Our platform includes all the capabilities needed to discover, organize, and consume data without the need for time-consuming and costly migration projects. Today more than 200 leading organizations trust...

The database market is big. How big? Well, according to IDC, it’ll reach $153 billion by 2027. And MongoDB is at the forefront of that innovation with thousands of customers across the globe. We empower developers and businesses to build and deploy the applications they want, wherever they want.

https://www.youtube.com/@northslope-technologies At Northslope, we believe that purpose-built AI products in the hands of business operators create far more value than slide decks or off-the-shelf software. That’s why we partner with ambitious organizations to transform entire industries through Palantir’s Foundry and AIP platforms—delivering powerful, measurable outcomes in weeks, not years. We operate more like a product startup than a traditional services firm. Our...

Nasuni transforms how enterprises store, protect, and access their file data. The Nasuni File Data Platform replaces legacy file servers, NAS, backup, and disaster recovery with one secure, cloud-based solution. It lets global teams access and collaborate on files anywhere, scale effortlessly across hybrid-cloud environments, and recover instantly from ransomware or outages. Trusted by leading companies in manufacturing, media, AEC, and more,...

Hudson River Trading brings a scientific approach to trading financial products. We have built one of the world's most sophisticated computing environments for research and development. Our researchers are at the forefront of innovation in the world of algorithmic trading.

Together, we've turn ambition into action. For more than three decades, Citadel has captured undiscovered market opportunities in markets around the world by empowering extraordinary people to pursue their best and boldest ideas. We strive to identify the highest and best uses of capital to generate superior long-term returns for the world’s preeminent public and private institutions.

SharkNinja redefines fast-paced. Bringing new, complex products to market in new categories every six months is not for the faint of heart. As a result, the talent that comprises our workforce is intelligent, committed, creative, and resilient no matter which department you call home. Everywhere you look here, you see the best of the best. What makes SharkNinja unique...

Managing a technology estate has never been a bigger challenge. Hardware, software, and users can be anywhere at any time, making IT environments extremely dynamic and often complex. A seemingly simple question has become terribly difficult to answer: ‘Who is using what device?’ CIO's, CTO's, IT managers, ... have to make decisions that are often based on scattered, out of date,...

We solve for advertising campaign and creative complexities - both key elements to the time/money savings and performance that brands, agencies and businesses seek. Our unified platform combines media, creative, and intelligence, offering end-to-end workflows powered by AI across the open and closed web. With over 700 brands and advertisers, we've proven that dynamic and personalized creative makes advertising impactful. We...

Flatiron Health is a healthtech company dedicated to helping cancer centers thrive and deliver better care for patients today and tomorrow. Through clinical and data science, we translate patient experiences into real-world evidence to improve treatment, inform policy, and advance research. Cancer is smart. Together, we can be smarter. Flatiron Health is an independent affiliate of the Roche Group.