Top Tech Companies in London (7,384)
Radware is a global leader of application delivery and cyber security solutions for virtual, cloud and software defined data centers. Our award-winning solutions portfolio delivers service level assurance for business-critical applications, while maximizing IT efficiency. Radware solutions empower more than 10,000 enterprise and carrier customers worldwide to adapt to market challenges quickly, maintain business continuity and achieve maximum productivity while...
Harte Hanks is a global, Customer Experience (CX) marketing company that seamlessly connects the digital and physical worlds through behavioral data, insight and omnichannel marketing solutions.
Learn. Innovate. Have an Impact. Duetto is the only true cloud technology company dedicated to improving the lives of hospitality professionals everywhere through the use of data and analytics, automation and AI. We work with thousands of hotels to ingest a wealth of data, including hundreds of millions of search events, reservations, and market pricing. Every day, we take on the challenge...
Duetto's Top Stability & Growth Strengths
Strong Market Position & Advantage: Consistent #1 RMS rankings from 2022–2025 and additional category wins (e.g., Meetings & Events Intelligence) portray a prominent, well-recognized leader. A global footprint serving thousands of hotels across 60+ countries reinforces visibility and influence with operators and partners.
Market Expansion: Property counts cited increased meaningfully from 2022 into 2025–2026, and the company expanded into North Asia while deepening ecosystem ties (e.g., Cloudbeds collaboration and 600+ shared hotels with Mews). Backing from GrowthCurve Capital explicitly targeted expansion into new markets.
Product Line Growth: The platform broadened from transient RMS into meetings/events and profit analytics through launches like OpenSpace and GameTime and the acquisition of HotStats, culminating in a Revenue & Profit Operating System vision. These moves extend use cases beyond room pricing toward total profit optimization.
Smarsh provides cloud-based archiving and compliance solutions for companies in regulated and litigious industries.
Smarsh's Top Stability & Growth Strengths
Strong Market Position & Advantage: Independent analyst leadership placements and broad platform coverage across email, chat, voice, collaboration, and AI channels underpin a durable competitive edge in regulated markets. Consistent external recognitions and notable customer expansions indicate strong execution.
Innovation-Driven Growth: AI-focused leadership appointments and features—such as AI-powered supervision, transcription, sentiment analysis, and speaker identification—signal an advancing product strategy. Emphasis on embedding generative AI and machine learning aligns with evolving regulatory needs.
Investor Backing & Capital Strength: Significant growth funding from established investors is directed to accelerate product development, market expansion, and infrastructure scaling. This capital position supports continued scaling and resilience.
APPII is a UK based, world-leading technology and verification software company that develops simple, trusted, and secure biometric applications and solutions suitable for use across a breadth of industries. In partnership with global IT solutions giant CoForge and leading UK clinical systems providers, APPII has developed iiPass – a health verification app – that uses superior biometric verification protocols to support...
Kaplan Test Prep (www.kaptest.com) is a premier provider of educational and career services for individuals, schools and businesses. Established in 1938, Kaplan is the world leader in the test prep industry. With an entrepreneurial work culture we have been able to grow with the digital explosion in the education industry!
Welcome to Sardina Systems – your strategic partner for business elevation. Our mission is simple yet powerful: we enable enterprises to scale, optimize costs, and thrive on our advanced cloud platform, built with OpenStack, Kubernetes, and Ceph. What sets us apart? Innovation is our DNA. We proudly pioneered the world's first zero-downtime OpenStack Upgrader, highlighting our commitment to digital transformation....
Radius is a global business services company founded in the UK in 1990 that now operates in 18 countries across five continents. Our mission is to help businesses of all sizes adapt to the future and take advantage of the opportunities that change brings in fleet and connectivity. Our role is to empower these companies through a unique set of solutions,...
Radius (radius.com)'s Top Stability & Growth Strengths
Market Expansion: The company is described as operating across many countries and opening new offices and hubs (e.g., Dublin, Florida, Milan, Auckland, Atlanta, and a global telematics HQ in Crewe), indicating continued geographic and operational footprint expansion.
Diversified Revenue Streams: The business is presented as spanning fuel cards, telematics, EV solutions, insurance, and telecoms, suggesting multiple adjacent lines that can reduce dependence on any single segment.
Strategic Partnerships: Partnership activity is repeatedly cited (e.g., with Arnold Clark Vehicle Management, Aston Barclay, Multi Service Fuel Card, Optus, and others), supporting distribution reach and cross-sell opportunities.
Founded in 1994, Compunnel Inc. is a leading provider of bespoke workforce management, IT consulting, and e-learning solutions tailored to transform your business for the digital age. Ranked by SIA amongst the Largest Staffing Firms in the US, we offer the whole gamut of workforce solutions including contingent staffing, full-time hiring, payroll, and SOW services. Never satisfied with the status...
Compunnel Inc.'s Top Stability & Growth Strengths
Strong Market Position & Advantage: Meaningful national scale is indicated by SIA placements cited by the company, including #57 among the largest U.S. staffing firms (2024) improving to #48 (2025) and a strong #18 position in U.S. IT staffing (2024). Segment strength is reinforced by additional category recognition such as appearing on SIA’s largest direct-hire firms list, supporting a “strong mid-market leader” profile in IT-focused talent solutions.
Resilient & Sustainable Growth: Momentum is suggested by year-over-year improvement in reported SIA ranks from 2023 to 2025 and repeated multi-year growth recognitions such as multiple Inc. 5000 appearances. Additional external recognition like USPAACC’s Fast 100 listing is presented as corroboration of sustained growth rather than a single-period spike.
Diversified Revenue Streams: A broader service mix beyond staffing is emphasized through references to digital/AI, cloud, cybersecurity, and learning solutions alongside IT staffing and direct hire. Vertical and channel extensions (e.g., enterprise and public-sector programs, MSP/VMS participation) suggest multiple pathways to revenue and demand smoothing across cycles.
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Telmie is an online marketplace for professional services in real-time. Our all-in-one platform makes it easy for anyone to find and talk to an expert who can help them to achieve their goal.
TECHNOLOGY FOR PEOPLE IN NOISE Workplace Noise Management and Intelligent Hearing Protection Helping you maintain a safe and productive work environment using advanced hearing protection and noise analytics
Transforming Life Science Consulting Worldwide. Fusion Consulting is a globally leading Business and IT management consultancy specialized in the Life Sciences industry, partnering with leading companies in pharma, healthcare, and other industries. With over 450 employees and 25 offices worldwide, our mission is to revolutionize our clients' business transformation challenges and set new industry standards through innovative solutions. Focused on S4/HANA, Data &...
CDM Media is the leading B2B technology marketing and media firm that specializes in engagement with C-level executives. Our portfolio spans digital and custom events, integrated media, social and mobile strategies, and our most prominent product, intimate summits that we produce all over the world. At these summits, we inspire lightbulb moments to our niche communities of C-suite executives and...
Pretty Green is one of the fastest growing UK based menswear fashion retailers with a well-established presence in the UK and Japan, representing a music inspired brand with strong British heritage, influenced by rock and roll culture and the Company’s founder, Liam Gallagher.
Setmixer records all performances automatically and autonomously, and best of all. When the artist leaves the stage, the moment is gone, forever. Don't let that happen to yours. Our unique recorder is permanently connected to the mixing desk of our partner venues to record every performance, in full 32-channel multitrack studio quality
Here to tech up your game. Our purpose is to turn your digital aspirations into tangible realities through the connective power of data, technology and expertise. We are the technical teams helping to create some of the most robust and fast systems for clients in the US & Australia operating in Solar, Childcare, Personal Safety and FinTech. Reach out to...
At HICX, we believe a company’s suppliers are key to incremental value creation. That’s why we’ve developed the world’s first Supplier Experience Platform to help large enterprises remove the friction from their supplier relationships. By adopting a single, consolidated experience covering all aspects of the supplier relationship, and building on a single version of supplier data truth, organizations with tens or...
White Label UCITS ETFs | Distribution | Marketing HANetf is an independent ETF specialist working with asset management leaders to bring differentiated, modern and innovative ETF exposures to European investors via an independent white-label platform. Founded by two of Europe’s leading ETF entrepreneurs, Hector McNeil and Nik Bienkowski, HANetf has the operational and regulatory experience necessary to manage the complexities of...
Xelix is an AI-powered Control Centre for Accounts Payable teams. We work with some of the largest global companies to automate and enhance their financial control processes. We take the pain, risk, and inefficiency out of four core Accounts Payable processes: - Overpayment and fraud prevention - Vendor statement reconciliation - Master vendor data cleansing - AP/P2P reporting Xelix simply...
