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Top Tech Companies in London (8,303)

Hiwell
Fitness • Healthtech
London
450 Employees

Hiwell is a leading online therapy platform that is committed to delivering psychotherapy services that are safe, individualized, and easily attainable. Our organization is founded on the principle that quality mental health care should be accessible to individuals regardless of location or availability. We are proud to be Turkey's largest online therapy platform, serving over 200,000 clients. Our team of...

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Hiwell
Eco Energy World
Renewable Energy
London
37 Employees

EEW Eco Energy World (‘EEW’), founded by entrepreneur Svante Kumlin is an independent global pure-play renewable energy projects developer,focusing on utility-scale solar photovoltaic (‘PV’) project and battery storage systems (‘BESS’) projects and currently also targeting servicing the green hydrogen industry. Since 2012, EEW has developed 21 solar PV projects totalling approximately 1.3 GW across UK, Australia and Spain. The group...

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Eco Energy World
Stability AI
Generative AI
London
149 Employees

Stability AI is building open AI tools that will let us reach our potential. Designing and implementing solutions using collective intelligence and augmented technology.

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Stability AI
Ethixbase360
Information Technology • Software
2 Offices
203 Employees

Ethixbase360 delivers market-leading technology to help companies identify, manage, and mitigate risks in their third-party network. The Ethixbase360 platform was designed to automate the identification of relevant risk indicators, provide insights from the data collected, and then create a positive impact for both its clients and their third parties with monitoring and training. Ethixbase360 acquired Tcompliance, formerly known as TRACE...

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Ethixbase360
Ascalia
Internet of Things • Machine Learning • Automation
London
20 Employees

Ascalia helps manufacturing companies analyse and optimise their production efficiency, energy and resources expenditure and overall manufacturing output. Using a mixture of IoT and machine learning, it allows any factory connect and optimise their machinery at a very low capital cost, greatly simplifying the barrier to adopt Industry4.0 and remain competitive in the market.

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Ascalia
IG
Fintech • Financial Services
London
5 Employees

Founded in 1974, IG Group is a world-leading provider of CFDs and an established member of the FTSE 250. IG Group has over 185,000 trading clients and processes over 5 million transactions a month, with over 99% of them online. We help our clients trade financial markets on leverage, through CFDs. These products allow you to find opportunity in both rising...

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IG
Deltek
Software
14 Offices
3,628 Employees
37 Benefits

Headquartered in Herndon, Virginia, with over 3,000 employees worldwide, Deltek is the leading global provider of enterprise software and information solutions for project-based businesses. Better software means better projects. Deltek delivers software and information solutions that enable superior levels of project intelligence, management and collaboration. Our industry-focused expertise makes your projects successful and helps you achieve performance that maximizes productivity...

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Deltek

Deltek's Top Stability & Growth Strengths

Strong Market Position & Advantage: The company is broadly recognized as a leading provider for project-based and government‑contracting software, with flagship offerings noted for deep compliance and project controls. Feedback suggests consistent analyst and market recognition within these niches reinforces a defensible competitive edge.

Market Expansion: Recent acquisitions and global reach across multiple regions indicate active expansion into adjacent products and geographies. Feedback suggests these moves are aimed at accelerating presence in services and government‑focused markets.

Innovation-Driven Growth: Analyst citations and product updates highlight AI‑driven capabilities and a unified platform approach to project workflows. Feedback suggests embedded intelligence and integrations are central to the go‑forward growth thesis.

LOCI
eCommerce • Fashion • Retail
London
22 Employees

A British urban-lux vegan sneaker and apparel brand LØCI, launched in 2021 with a mission to build the most aspirational brand with impact at its core.

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LOCI
Transport Exchange Group
Logistics • Software
2 Offices
113 Employees

The Transport Exchange Group (TEG) was established in 2000 and since then has been connecting thousands of road freight businesses across the UK, Europe and North America. TEG uses technology to create business opportunities, increased profitability, and empowers growth, across the supply chain. Turning the complicated road freight network into a manageable, easy to use digital platform that makes users lives...

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Transport Exchange Group
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ALT21
Payments • Financial Services
3 Offices
61 Employees

At ALT21, we’re on a mission to make currency hedging accessible to everyone. Currency hedging can protect businesses and investors, regardless of their size, from exchange rate shocks that can threaten their viability. Yet, 80% of SMEs have never used currency hedging services. Individuals use them even less. That’s why we want to transform currency hedging, from something elitist and...

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ALT21
Gateway Ticketing Systems
3 Offices
114 Employees
20 Benefits

For over 30 years, Gateway Ticketing Systems has worked with the world's top theme parks, zoos, aquariums, museums & other attractions all over the world. These locations have trusted our Galaxy® software for ticketing, admission control, group sales, membership/season pass and CRM solutions to drive revenue and increase efficiencies throughout their attraction by having a unified solution.

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Gateway Ticketing Systems
Leah (formerly ContractPodAi)
Artificial Intelligence • Information Technology • Legal Tech
5 Offices
294 Employees
1 Benefits

ContractPodAi®, the leader in contract lifecycle management, streamlines and simplifies processes across the full spectrum of in-house legal teams’ workloads with One Legal Platform. Harnessing the combined power of the IBM Watson and Microsoft Azure artificial intelligence engines, and shaped with modern legal design thinking, we are defined by constant innovation. ContractPodAi Cloud, our pioneering platform, sets a new standard...

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Leah (formerly ContractPodAi)
SourceScrub
Software • Database
4 Offices
836 Employees
24 Benefits

SourceScrub is the world's leading data service for firms looking to research, find and connect with privately held companies. Our Private Company Intelligence platform allows deal teams to take a data-driven approach in a traditionally opaque segment of the market. We combine state-of-the-art technology with an unmatched QA process resulting in the freshest and most accurate data set available.

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SourceScrub
Uhubs
Software • Analytics
London
44 Employees

Uhubs helps busy Sales Leaders grow, retain and improve the performance of their salespeople. We do it by analysing data on individual reps through our Performance Pulse tool and equipping teams with consistent development to close the gap and build complete Salespeople

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Uhubs
Loopio
Software
4 Offices
237 Employees

Loopio is a Toronto-based RFP response software provider that helps companies streamline their process for RFPs, DDQs, and Security Questionnaires. With Loopio, teams can respond faster, improve response quality, and win more business. Loopio is one of Canada’s fastest-growing tech startups. It ranked twice as one of the fastest-growing companies on the Deloitte Technology Fast 50™ list and was selected twice...

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Loopio
Carbon
Fintech • Software • Financial Services
London
126 Employees

At Carbon, we believe that access to credit and quality financial services is a human right. Our mission is to empower all people with the financial access they need to pursue a life of dignity and prosperity. We empower individuals with access to credit, simple payments solutions, high-yield investment opportunities and easy-to-use tools for personal financial management. Carbon is headquartered in...

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Carbon
FINBOURNE Technology
Fintech • Software • Financial Services
London
248 Employees

At FINBOURNE, we offer a new and interoperable approach to data management, achieving value within a faster time to market. Our Modern Financial Data Stack empowers investment data processes and drives operational growth for emerging hedge funds to established global institutions. Leveraging SaaS technology and a secure cloud infrastructure, we liberate, simplify and connect data, making it accessible and usable...

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FINBOURNE Technology
Five9
Cloud • Software
9 Offices
2,427 Employees
36 Benefits Hiring Now

Five9 is an industry-leading provider of cloud contact center solutions, bringing the power of cloud innovation to more than 2,000 customers worldwide and facilitating billions of customer engagements annually. The Five9 Intelligent Cloud Contact Center provides digital engagement, analytics, workflow automation, workforce optimization, and practical AI to help customers reimagine their customer experience. Designed to be reliable, secure, compliant, and...

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Five9

Five9's Top Stability & Growth Strengths

Profitability: GAAP profitability was achieved in 2025 and continued with positive GAAP net income in early 2026, indicating a durable turn to earnings. Feedback suggests margin improvements are underway alongside measured growth.

Healthy Cash Flow: Operating cash flow was solid in 2025 and remained positive in Q1 2026, supporting reinvestment and buybacks. Management actions like a new share repurchase authorization and efficiency focus signal confidence in ongoing cash generation.

Strong Market Position & Advantage: Consistent placement as a Leader in major analyst frameworks and surpassing $1B in annual revenue underscore scale and competitive standing. A broad customer base with thousands of clients further reflects mainstream relevance in CCaaS.

Vizify Analytics
Analytics • Consulting
London
12 Employees

We love data - it's a shared passion we all hold. We work closely with our clients to craft solutions that help them to address their performance and continually improve their operations. We specialise in delivering end to end, automated solutions that stand the test of time

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Vizify Analytics
Haygarth
AdTech • Agency • Marketing Tech • Design
London
108 Employees

We're an award-winning creative agency creating ideas that shift mindsets, and inspire action at every part of the consumer journey, making brands easy to love and simple to buy. Haygarth is part of the Flywheel Commerce Network; a division of Omnicom Group. Follow us on Twitter: @we_are_haygarth

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Haygarth

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