Top Tech Companies in London (8,305)
We are dentsu. We team together to help brands predict and plan for disruptive future opportunities and create new paths to growth in the sustainable economy. We know people better than anyone else and we use those insights to connect brand, content, commerce and experience, underpinned by modern creativity. We are the network designed for what’s next
dentsu's Top Stability & Growth Strengths
Strong Market Position & Advantage: Industry rankings consistently place Dentsu among the largest global holding groups, with particular leadership in APAC and a strong media agency footprint. New‑business tallies and creative recognitions further reinforce its position even if it sits just below the very top three in global billings.
Future-Ready Strategy: Management’s 2025–2027 plan pivots from M&A toward restoring organic growth, deeper integration under One dentsu, and performance improvement in international markets. Early 2026 prints show a modest return to growth while data/CRM and media capabilities (e.g., Merkle and the Carat/iProspect networks) underpin execution.
Diversified Revenue Streams: The portfolio spans media, creative, and CX/data via brands such as Carat, iProspect, Dentsu X, Dentsu Creative, and Merkle, providing multiple revenue engines. Creative accolades and sustained media scale indicate balanced contributions across disciplines.
Adlook is redefining how brands grow across the open web and Connected TV. We are an independent, self-driving media buying platform for the open internet – AI-powered and outcomes-focused. Our mission is to empower product-driven brands to grow faster and smarter - cutting through digital noise and turning media into measurable results. Programmatic advertising has failed to deliver on its promise....
Centra is a Swedish software company that provides an advanced, fashion-focused e-commerce platform for direct-to-consumer and wholesale brands. Its technology helps brands expand globally by managing localized online stores, payments, deliveries, warehouses, languages, prices, taxes, and multiple sales channels from one system. Centra aims to help brands accelerate internationally while creating scalable digital commerce experiences and supporting global sales growth.
Howdens is a specialist kitchen and home-improvement supplier serving trade professionals across the UK and Europe. Its trade-only model distributes fitted kitchens, approximately 80 kitchen ranges, Lamona appliances, and thousands of joinery and hardware products through a network of local depots. The company supports builders with in-stock products, convenience, and trade value, helping them deliver high-quality installations to homeowners and...
Leapwork is the only AI-powered visual test automation platform that truly enables speed and efficiency in software testing. Thanks to the platform’s visual interface, it’s easy and intuitive to use - just like cobbling Lego blocks together - empowering entire enterprise teams to learn, build and maintain automation in just 30 days. Leapwork works across all applications making it ideal...
Nova Founders Capital invests in and builds sustainable large-scale business models in rapidly growing internet markets. We are very disciplined company builders and investors and understand how to efficiently grow companies. Our companies receive the continuous financial and operational support they need to be successful. Examples of companies we have founded include www.compareasiagroup.com (the leading financial platform in Asia), www.lionandlion.com (leading...
Hansen Technologies (ASX:HSN) is a global software and services provider to the energy, water/utilities and telecommunications industries. The company currently serves more than 600 customers in over 80 countries, supported by a collaborative and diverse team that embraces the hybrid way of working. For connection and collaboration, we have more than 36 offices and development centres located around the world....
Digital is now the most important driver of growth and profitability for just about every business. Similarweb is a platform that gives our customers a true 360 degree view of all digital activity across customers, prospects, partners, and competition. The resulting insights give our customers — who are some of the world’s biggest brands — a digital edge that helps...
SimilarWeb's Top Stability & Growth Strengths
Strong Revenue Growth: Revenue rose from 2023 through 2025 and continued to increase in 2026, with guidance lifted to approximately $314–318M. ARR surpassed $300M and remaining performance obligations expanded, underscoring ongoing top-line momentum.
Customer Loyalty & Retention: Multi-year commitments grew as a share of ARR and the number of $100k+ customers increased to 473, representing a larger portion of ARR. Dollar-based net retention stands at 100% overall and 107% for large accounts, indicating durable enterprise relationships.
Strong Market Position & Advantage: Distribution via Bloomberg Terminal, frequent citation by major outlets, and consistent Leader placement on independent grids signal entrenched use in professional workflows. Product momentum in Gen‑AI, app intelligence, and integrations broadens relevance beyond marketing teams.
Stagecoach Group is the UK's largest bus and coach operator, proudly connecting over 100 towns and cities across England, Scotland and Wales. Since 1980, the company has helped millions of people reach their destinations. They are committed to delivering reliable, sustainable travel that is accessible and fair for everyone, while working with governments to support greener, smarter, and more inclusive...
PMG integrates business strategy, media, creative, and data within a single operating model powered by our proprietary operating system, Alli. Developed in-house, Alli connects strategy to execution and execution to measurement—aligning people, systems, and accountability to drive measurable business outcomes.
PMG's Top Stability & Growth Strengths
Strong Revenue Growth: Trade coverage indicates sustained double‑digit growth across 2024–2025 and substantial managed media spend. Recent high‑profile AOR wins and early‑2026 new‑business momentum reinforce the trajectory.
Strong Market Position & Advantage: Industry honors (e.g., Independent Agency of the Year) and a blue‑chip client roster signal competitive strength among independent, tech‑forward media/marketing agencies. Consistent recognition across multiple years points to durable standing rather than a one‑off result.
Market Expansion: New offices in Mexico City and Toronto, alongside acquisitions in retail media and influencer marketing, extend geographic reach and capabilities. Prior deals in CTV/OTT and the U.K./EU further support scaled indie positioning.
EDITED is the global leader in Retail Intelligence. We help retailers increase margins, generate more sales and drive better outcomes through AI-driven Market and Enterprise Intelligence to fuel Automation. By connecting business analytics and external market data, brands like Columbia and Inditex use the EDITED Retail Intelligence products to make better data-backed decisions, expediting insights into action.
We are a community of 30 million who think – and feel – differently about investing. Together, we’re changing the way the world invests. Since our founding in 1975, helping our investors achieve their goals is our sole reason for existence. With no other parties to answer to and therefore no conflicting loyalties, we make every decision—like keeping investing costs as...
Vanguard's Top Stability & Growth Strengths
Strong Market Position & Advantage: Dominance in retirement products and sustained leadership in ETF inflows point to strong competitive positioning in core passive and retirement channels. Large-scale assets and a leading target-date franchise suggest durable advantages that support continued asset gathering into 2026.
Cost & Operational Efficiency: Scale-driven fee cuts and a very low asset-weighted average expense ratio indicate ongoing efficiency gains being passed through to clients. Continued reductions are framed as a mechanism to reinforce loyalty and maintain competitiveness despite industry-wide pricing pressure.
Resilient & Sustainable Growth: Rising total assets alongside strong, multi-year net inflows suggest growth that is supported by both market performance and organic demand for core index and retirement offerings. Retirement-plan trends such as auto-enrollment and target-date adoption are described as structural tailwinds that can keep flows durable across cycles.
Founded in 2011, Two Circles is an international sports and entertainment marketing business that leverages data and knowing fans best, to help organizations grow audiences and revenues. From thirteen international offices, Two Circles works with some of the biggest names in sports and entertainment, including the NFL, Premier League, UEFA and EA. The business uses data to grow the volume...
Genomics England works with the NHS to bring forward the use of genomic healthcare and research in Britain to help people live longer, healthier lives. Genomics is a ground-breaking area of medicine that uses our unique genetic code to help diagnose, treat and prevent illnesses. Thanks to advanced technology, scientists can now compare many people’s genetic code to make...
Liberty Global is a world leader in converged broadband, video and mobile communications and an active investor in cutting-edge infrastructure, content and technology ventures. With our investments in fibre-based and 5G networks we play a vital role in society, currently providing over 85 million fixed and mobile connections and rolling out the next generation of products and services, while readying our...
Tembo is on a mission to make homeownership happen for a new generation of buyers. Its innovative mortgage products are helping generation rent onto the property ladder faster and for less. Tembo is authorised and regulated by the Financial Conduct Authority under the registration number 952652. YOUR HOME MAY BE REPOSSESSED IF YOU DO NOT KEEP UP REPAYMENTS ON YOUR...
Citi's mission is to serve as a trusted partner to our clients by responsibly providing financial services that enable growth and economic progress. Our core activities are safeguarding assets, lending money, making payments and accessing the capital markets on behalf of our clients. We have 200 years of experience helping our clients meet the world's toughest challenges and embrace its...
Citi's Top Stability & Growth Strengths
Strong Revenue Growth: Revenue is at its highest level in more than a decade, with broad-based gains and record contributions across all five businesses. Recent quarters continued to post strong year-over-year increases and positive operating leverage.
Profitability: Net income has increased meaningfully, underpinned by stronger trading, banking activity, and firmwide efficiency gains. Management is targeting higher returns over the next few years, reinforcing an improving earnings trajectory.
Investor Backing & Capital Strength: Capital ratios remain well above regulatory requirements while the firm returns substantial cash through dividends and share repurchases. This combination points to a robust balance sheet and capacity to fund growth and shareholder returns.
Impact Fundry is a London-based strategic consultancy boutique and venture capital firm founded in 2020. It provides seed and series A venture capital, along with business and entrepreneurial expertise, to world-class startups. The firm focuses on supporting high-growth companies across various industries to generate a significant, world-changing impact through cutting-edge management consulting and strategic corporate and digital ventures.
Founded in 2013, Uphold is a digital wallet and trading platform that makes cryptocurrencies and other assets affordable and accessible for everyone. We provide borderless access to financial services you can’t get through your bank. Covering over 150 cryptos and utility tokens, 27 national currencies, 6 stablecoins and four precious metals, we allow both consumers and businesses to easily transact between...
RepRisk is the world’s most respected Data as a Service (DaaS) company for reputational risks and responsible business conduct. From 2007, RepRisk’s data has been trusted by the world’s leading banks, investment managers, Fortune 500 companies, sovereign wealth funds, and organizations such as the OECD, UN, and the World Bank. Combining advanced AI with deep human expertise, and a proven...
