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Top Tech Companies in London (8,302)

Sponge
Edtech
2 Offices
199 Employees

Sponge is a world-renowned digital learning provider on a mission to make learning unforgettable. Our category-defining approach is revolutionising learning development at some of the world’s most recognisable global brands. And, with almost 20 years’ worth of awards and accolades brightening our shelves, the results speak for themselves.

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Sponge
OUTFIT7
Gaming • Mobile
4 Offices
467 Employees
We create experiences that look, play, & feel good.

Outfit7 is a global entertainment force, bringing billions joy through games, video content, theme parks, and more. What does that mean? Simply put: we create memorable experiences that look, play, and feel good. It’s in our power to make a positive impact by sharing joy, giving back, and entertaining the world – so that’s exactly what we do. Every day. Our...

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OUTFIT7
Bellwether
Real Estate • Business Intelligence
2 Offices
113 Employees
Value-enhancement strategies from a trusted partner

Founded in 2013, Bellwether Asset Management, Inc. (“BWAM”) is a privately held firm based in Los Angeles, CA. BWAM partners with clients to provide a proven institutional platform with scalable solutions for all their real estate needs. Initially engaged by Oaktree Capital’s real estate group to develop an asset management platform, BWAM has continued to expand its services to a variety...

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Bellwether
Initiate
Pharmaceutical
3 Offices
34 Employees
1 Benefits

With decades of experience in global Market Access and HEOR consultancy, we serve clients who need to achieve the best access outcome. By combining the optimal mix of knowledge, experience and capability across pharmaceuticals, medical devices and diagnostics and with specialist expertise in advanced gene and cell therapies for rare disorders, we guide and support our clients working with novel products...

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Initiate
RSM US LLP
Legal Tech • Other • Professional Services • Real Estate • Business Intelligence • Consulting • Financial Services
26 Offices
19,318 Employees
40 Benefits Hiring Now
Experience the power of being understood.

RSM is the leading provider of audit, tax and consulting services to the middle market. With over 11,000 employees across the U.S. and Canada and a global presence in 120 countries, our purpose is to deliver the power of being understood to our clients, colleagues and communities. As first-choice advisors, we are focused on developing leading professionals and innovative services...

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RSM US LLP

RSM US LLP's Top Stability & Growth Strengths

Strategic Partnerships: The transatlantic partnership effective January 1, 2026 unites RSM US with the UK, Canada and Ireland (with integrated teams in India and El Salvador), forming an approximately $5B, ~23,000‑professional platform aimed at accelerating growth. Subsequent steps—such as an agreement in principle for RSM Mexico to join in June 2026—further expand the combined footprint.

Innovation-Driven Growth: A $1 billion, multi‑year AI and digital investment announced in 2025—and reiterated in 2026 materials—positions the firm to enhance productivity and build new tech‑enabled solutions. Leadership appointments in 2026 to scale digital and managed services align operating capacity to this program.

Strong Market Position & Advantage: The firm is ranked No. 5 in the U.S. and is widely recognized as a leading middle‑market provider, signaling national‑scale reach and brand strength. Headcount expansion indicators through mid‑2026 and a broadened cross‑border platform support durable competitiveness.

Upfield
Food
2 Offices
3,171 Employees
1 Benefits

The driving force behind our success as a global leader in plant-based foods are the 4,800 Upfielders who every day live our purpose and are engaged in our mission, delivering through our values of Performance, Care and Passion. Results Matter. Upfielders. Always Day 1 mindset. Always one step ahead, driven by data, with a finger on the pulse – our...

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Upfield
Dyad
Artificial Intelligence • Healthtech • Software
London
39 Employees

Administrative complexity, failure of care coordination and inefficient payer-provider workflows cause poor patient outcomes, waste hundreds of billions of dollars annually, and create a miserable experience for everyone involved. It doesn't have to be like this. ‍ Using the combination of graph machine learning and knowledge graphs, Dyad provides seamlessly integrated applications that address these issues while enhancing collaboration, visibility and trust...

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Dyad
31 Green
Information Technology
2 Offices
70 Employees

At 31G, we know that developing a solution is just half the story. We bring significant experience in change management, optimizing business operations and processes, digital transformation and tech development. We are able to fully augment your digital and business needs into practical day-to-day operations. We are founded by a group of highly successful individuals with multi-sector experience, deep knowledge, fierce...

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31 Green
Butter.co.uk
Fintech • Payments • Financial Services
London
13 Employees

The Butter app lets you spread the cost of shopping from any online retailer with a simple monthly instalment plan. Butter members earn rewards for shopping that can be redeemed for discounts on our members only travel platform, Butter Holidays

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Butter.co.uk
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Sparrow
Machine Learning • Marketing Tech
London
50 Employees

Sparrow is a digital subscription startup making science accessible and affordable to anyone who wants to absorb and share new content. Our experts summarize the latest science research into bite-sized newsletters that are easy for you to digest - for free. Focus on one - or all - of our topic areas: Cancer, Mental Health, Environment, and Reproductive Health. We...

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Sparrow
MiiCare
Information Technology • Software • Analytics
London
20 Employees

AARP AgeTech Collaborative Portfolio Company | Microsoft Partner Company MiiCare™ is a social enterprise set up by a group of professionals with diverse industry backgrounds, ranging from healthcare to technology and product development. The team came together with one objective in mind - To give vulnerable people (both young and not so young) a Healthy, Safe, and Happy life by...

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MiiCare
Oxford Global Resources
Professional Services
28 Offices
2,400 Employees
29 Benefits

Oxford Global Resources delivers tailored solutions for any technical challenges you are facing using our partnership-first approach. Since 1984, we have been delivering professional services such as staffing, consulting, project management and everything in between to businesses of all sizes, all over the world. We specialize in the areas such as workforce mobilization, digital transformation, and modern enterprise. It doesn’t...

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Oxford Global Resources
AQai - Adaptability Assessments & Coaching
Artificial Intelligence • Analytics
London
100 Employees

*AQ is the Adaptability Quotient Powering humanity to adapt in a rapidly changing world Protect your organisation from disruption Discover your AQ score Our smart AQ (Adaptability Quotient) assessment with personal report dashboard simplifies AQ. Unique data insights make it easy to understand and improve. Enhance your AQ Aida, our AI chatbot, uses natural language to assess and coach your...

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AQai - Adaptability Assessments & Coaching
AICPA
Other
3 Offices
1,067 Employees
8 Benefits

Combining the strengths of the American Institute of CPAs® and The Chartered Institute of Management Accountants®, we empower the world’s most highly skilled accountants — CPAs and CGMA® designation holders — with the knowledge, insight and foresight to meet today’s demands and tomorrow’s challenges. We drive a dynamic accounting profession that works every day to build trust, create opportunity and...

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AICPA
SAI Global
Big Data • Professional Services
11 Offices
2,500 Employees
27 Benefits

SAI Global is a privately held company with operations throughout the world, including North America, Asia-Pacific, and EMEA. SAI Global Compliance provides a full range of governance, risk and compliance (GRC) software applications, learning and awareness solutions and advisory consulting services.

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SAI Global
Wellers Accountants
Professional Services • Consulting • Financial Services
4 Offices

Wellers is an accountancy firm focused on helping early stage and growing enterprises succeed. Their mission is to help their staff and clients achieve their true potential through the development of accounting, tax, and advisory skills. They pride themselves on building long-lasting relationships and maintaining a supportive, inclusive culture that delivers top-level professional services to a wide range of clients.

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Wellers Accountants
Elevate Services
Legal Tech
14 Offices
1,283 Employees
27 Benefits

Elevate is a law company, providing consulting, technology and services to law departments and law firms. The company’s multi-disciplinary team of legal professionals, business professionals, and technology professionals extend and enable the resources and capabilities of customers worldwide.

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Elevate Services
Back Market
eCommerce • Greentech • Sharing Economy
8 Offices
450 Employees
19 Benefits
Our startup revolutionizes the way people buy tech devices

At the heart of Back Market is a simple idea: make devices a bit cleaner by making them last a bit longer. We think it's time to offer a strong and mainstream alternative to new products by making existing used devices more appealing to potential customers and making them accessible as a strong alternate option.

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Back Market
CGG
Energy
8 Offices
4,063 Employees
13 Benefits

CGG provides a range of geoscience solutions for complex natural resource, environmental and infrastructure challenges.

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CGG
Adzact
Information Technology • Software • Consulting
London
21 Employees

We’ve built the world’s first purpose-built B2B Ad Platform. We have by far the most nuanced and unusual data on every business in the economy. This allows our customers to leapfrog other un-targeted Display Ad technologies. We believe B2B Ad spend growth will continue, and we’re here to support B2B Marketers with the explosion of creativity and ambition that will...

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Adzact

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