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Top Tech Companies in London (8,302)

Vaultik
eCommerce • Retail
London
12 Employees

At Vaultik, we redefine luxury ownership in the digital age. We harness the power of blockchain technology to create an immutable digital vault for luxury goods. Our proprietary system generates a blockchain certificate at the point of sale, bestowing each luxury item with a unique digital identity. This not only safeguards against theft, loss, and counterfeiting but also enhances the...

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Vaultik
XDEFI Wallet
Information Technology • Software • Consulting
London
50 Employees

Install XDEFI Wallet: http://bit.ly/3syw15k Discord: http://discord.gg/xdefiwallet

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XDEFI Wallet
Exclaimer
Information Technology • Consulting
6 Offices
268 Employees
23 Benefits

Turbo-boost your email signatures After starting Exclaimer over 20 years ago, we saw how our email signature management software could boost the way businesses manage employee email signatures. Today we help brands keep communications consistent and make every message count – all while being legally compliant. But our software doesn’t just help things run smoothly, it lets businesses cut admin overheads...

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Exclaimer
Grant Thornton LLP (US)
Professional Services • Financial Services
53 Offices
13,711 Employees
42 Benefits

Forget what you think you know about professional services. We go beyond what’s expected and help others do the same. Grant Thornton is the U.S. member firm of Grant Thornton International Ltd, one of the world’s leading independent audit, tax and advisory firms. That means our network has more than 60,000 professionals in more than 135 countries who are ready to...

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Grant Thornton LLP (US)

Grant Thornton LLP (US)'s Top Stability & Growth Strengths

Investor Backing & Capital Strength: A growth-oriented private equity investment from New Mountain Capital (with minority investments from CDPQ and OA Private Capital) in 2024 supplied an “investment war chest” to accelerate technology, AI-enabled services, talent acquisition, and strategic expansion. This capital base also underpins the multinational platform strategy and the announced CBIZ deal.

Market Expansion: Grant Thornton Advisors announced a $5.0 billion acquisition of CBIZ that, upon closing, would lift the U.S. platform past $5 billion in domestic revenue and expand brand reach. The Advisors arm also combined with Grant Thornton Ireland in 2025 and has since grown its European footprint, signaling inorganic and international momentum.

Strong Market Position & Advantage: The firm is consistently ranked among the top U.S. accounting and professional services firms, operates across numerous U.S. offices, and is a premier leader for the mid‑market and private‑equity segments. Its inclusion among the small set of firms subject to annual PCAOB inspection underscores national scale and capital‑markets relevance.

AppDynamics
Software • Cybersecurity
23 Offices
1,202 Employees
39 Benefits

Cisco AppDynamics is on a mission to help the world's most innovative companies live up to their boldest ambitions. That's why we're delivering full-stack observability that allows you to see, understand, and optimize what happens inside and beyond your architecture. Our Business Observability platform speeds digital transformation by providing business context deep into the technology stack, aligning teams around shared...

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AppDynamics

AppDynamics's Top Stability & Growth Strengths

Strong Market Position & Advantage: Historical APM leadership and inclusion under Splunk’s Leader‑positioned observability portfolio indicate durable competitive standing with large enterprises. Leadership today is shared across vendors, but the portfolio alignment strengthens Cisco’s end‑to‑end observability story.

Future-Ready Strategy: Active unification of AppDynamics with Splunk and ThousandEyes, and ongoing product integration work, point to a deliberate path toward a combined full‑stack observability experience. This positioning signals longer‑term intent to grow AppDynamics’ capabilities within Cisco’s observability motion.

Market Expansion: Growth reported in Cisco’s broader Observability category and customer spend shifting into that stack suggest expanding opportunity for the integrated offering that includes AppDynamics. Portfolio‑level momentum provides additional routes to adoption beyond standalone APM.

CoGrammar
Information Technology
London
34 Employees

CoGrammar excels in offering impactful, free coding bootcamps, notably through its collaboration with the UK's Department for Education since 2022. Funded Skills Bootcamps, targeting key areas like Software Engineering and Data Science, provide personalized code review and expert career support. This approach has successfully led numerous students to secure their first tech job interviews and land roles with leading tech...

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CoGrammar
Mitel
Cloud • Mobile • Software
21 Offices
4,026 Employees
22 Benefits

Powering more than 2 billion connections every day, Mitel helps businesses connect, collaborate and take care of customers. With 45 years of industry leadership, we help businesses connect, collaborate and provide better experiences for their customers. Mitel is trusted by 70 million business users in more than 100 countries. Throughout our long history of industry experience, innovation has been core to Mitel’s...

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Mitel
more2
AdTech • Marketing Tech • Analytics • Consulting
London
140 Employees

We are the leading insight and analysis business for retail, ecommerce, and travel. We are data-led, insight-driven, and rich in experience. We are the growth partner to over 100 brands. We combine strategic thinking with operational excellence powered by the world’s leading technology to help you make the most of your customer data. We will challenge you, ask the hard...

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more2
Jobandtalent
Software
10 Offices
2,303 Employees
6 Benefits Hiring Now

Jobandtalent is the world-leading temporary job platform that helps people thrive with their work. We harness the power of technology in order to provide the stability and perks associated with long-term employment. Jobandtalent was founded in 2009 in Madrid with the goal of fundamentally tearing down the barriers of job searching and hiring, and is one of the most successful...

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Jobandtalent
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FLock.io
Artificial Intelligence • Blockchain • Machine Learning • Software • Web3
London
12 Employees

FLock.io aims to build a decentralised privacy-preserving solution for Artificial Intelligence. We proposed a research initiative called Federated Learning Blocks (in short, FLocks), which uses blockchain as a coordination platform among data holders to conduct Machine Learning while data stays local and private. By replacing the central entity that collects data and organises machine learning with blockchain, FLocks aims to...

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FLock.io
ZeroFOX
Security • Social Media • Software • Cybersecurity
4 Offices
425 Employees
28 Benefits

ZeroFOX, The Social Media Security Company, enables organizations to identify, manage and mitigate social media based cyber threats

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ZeroFOX
The Peninsula Hotels
13 Offices
10,000 Employees
16 Benefits

The Peninsula Hotels’ remarkable journey started in 1866 when our parent company, The Hongkong and Shanghai Hotels (HSH), opened the very first Hong Kong Hotel and later in 1928 with the opening of the luxurious The Peninsula Hong Kong. Now with 12 award-winning hotels spread across Asia, Europe and the US, the Peninsula brand is synonymous with luxurious comfort and...

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The Peninsula Hotels
Harness (goharness.com)
Fintech • Payments • Software • Financial Services
6 Offices
75 Employees
25 Benefits

Harness serves as the missing link between how we spend and what we believe in. Our financial technology platform connects consumers with nonprofits, financial institutions, and brands, helping consumers’ everyday spending to be a true representation of who they are—an ongoing vote for the world they want to live in.

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Harness (goharness.com)
Tutolk
Marketing Tech • Travel
London
18 Employees

(Formerly Volangua) Tutolk is a global language learning marketplace that connects students with top-tier language schools and experienced online teachers. We're passionate about breaking down language barriers and fostering a worldwide community of diverse, multilingual individuals

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Tutolk
Journee
Information Technology • Software
2 Offices
100 Employees

Journee is a team of creators and technologists reshaping the future of the internet by creating the world’s most beautiful virtual experiences for enterprises. Our award-winning immersive experience design and our flagship technology, JourneeX, constitute a premium enterprise solution suite for virtual experiences. This suite empowers enterprises to deliver high-performance, branded virtual experiences to audiences worldwide. The internet has transformed society by...

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Journee
UK Connect
Information Technology • Internet of Things
Rushmoor
58 Employees

At UK Connect, we specialise in advanced wireless connectivity solutions. With a strong pedigree in construction and proven expertise across multiple sectors, we specialise in connecting even the most challenging locations. From 5G Fixed Wireless Access to In-Building Mobile Coverage, Point-to-Point Wireless Bridging, IoT Management and a range of specialist connectivity solutions, we are committed to bridging the gap and...

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UK Connect
Scanline VFX
News + Entertainment • Software
8 Offices
934 Employees
12 Benefits

Scanline VFX is an award-winning, global leader in the visual effects industry with studios in 7 core locations including London, Los Angeles, Montreal, Munich, Seoul, Stuttgart, and Vancouver. From humble beginnings over 30 years ago, we’ve grown to a team of over 1,200 made up of diverse nationalities from around the world. We believe in the power of storytelling and...

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Scanline VFX
Cryptio
Fintech • Payments • Financial Services
3 Offices
52 Employees

Cryptio is an institutional-grade crypto accounting platform. Our software helps financial institutions, corporates and crypto-native companies navigate the fragmented digital-asset landscape with confidence. We're bridging the gap between the blockchain and accounting systems – transforming DeFi, custody, OTC, and exchange data into auditable records for accounting, treasury and tax filings

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Cryptio
Ginni AI
Artificial Intelligence • Sales • Software
London
2 Employees

Ginni AI analyzes all sales interactions to identify successful patterns, transforming them into actionable insights. We assist companies in optimizing and scaling their sales processes through AI Coaching, AI Assistance, and an AI Sales Strategy Builder. Ginni AI acts as the expert sales leader, crucial for early-stage growing startups to unlock revenue growth and build the sales foundation early on.

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Ginni AI
Trepp, Inc.
Fintech • Payments • Financial Services
3 Offices
169 Employees
26 Benefits

Trepp, founded in 1979, is the leading provider of data, insights, and technology solutions to the structured finance, commercial real estate, and banking markets. Trepp provides primary and secondary market participants with the solutions and analytics they need to increase operational efficiencies, information transparency, and investment performance. From its offices in New York, Dallas, and London, Trepp serves its clients...

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Trepp, Inc.

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