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Top Tech Companies in London (8,305)

Artefact (artefact.com)
Artificial Intelligence • Consulting
9 Offices
1,637 Employees

Artefact is a leading global consulting company dedicated to accelerating the adoption of data and AI to positively impact people and organizations. We specialize in data transformation and data marketing to drive tangible business results across the entire enterprise value chain. Our 1500 employees operate in 23 countries (Europe, Americas, Asia, Middle East Africa) and we partner with 1000 clients,...

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Artefact (artefact.com)

Artefact (artefact.com)'s Top Stability & Growth Strengths

Investor Backing & Capital Strength: Private‑equity support, including a majority sale to Cinven valued above €1B with lender financing announced in December 2025, signals strong capital access and investor conviction. Reports of additional inbound PE interest in early 2025 further reinforce confidence in the firm’s scale‑up trajectory.

Strategic Partnerships: Consecutive Google Cloud Artificial Intelligence Partner of the Year awards for EMEA in 2025 and 2026 demonstrate execution strength with a major hyperscaler. AWS partner achievements and competencies add cross‑platform credibility that supports go‑to‑market momentum.

Market Expansion: New offices across Latin America, India, Africa, and Canada, alongside acquisitions such as Effixis, Brain Food, and AdvanceGuidance, show sustained geographic and capability expansion. Company disclosures of rising headcount and office counts into 2026 indicate continued build‑out of delivery capacity.

MWA Financial
Fintech • Financial Services
East Hertfordshire
16 Employees

MWA is bespoke acquirer of IFA practices in the UK. We establish, develop and succession financial advice businesses. Depending upon where you are in your journey, we have a solution. Cashflow support, succession planning and access to M&A opportunities.

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MWA Financial
Nomia
Artificial Intelligence • Cloud • Information Technology • Software • Generative AI
London
88 Employees

Nomia was called Bell Procurement Management and was established in 2016 as a line of business within Bell Integration, becoming a separate company on 2nd April 2024. Nomia uses next generation technology integrated with generative AI and cognitive search solutions to streamline and manage the non-strategic procurement processes. With a growing global team, we work closely with our customers to...

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Nomia
OpenGamma
Software • Analytics
London
102 Employees

OpenGamma is a derivatives analytics firm with unparalleled expertise in OTC and ETD margin methodologies, backed by CME, JSCC, Accel and Dawn. Our teams bring together a unique mix of practitioner, quantitative and software engineering expertise. Today, we are trusted by the largest and most sophisticated global banks and fund managers, with thousands of users depending on our analytics. Our...

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OpenGamma
Snowplow
AdTech • Marketing Tech
2 Offices
138 Employees
22 Benefits Hiring Now

Snowplow empowers organizations to generate trustworthy, first-party customer data to power Marketing and Advertising performance. 1.9+ million sites and applications use Snowplow to generate and model first-party customer data from across their digital interfaces to capture descriptive customer journeys and build actionable first-party behavioral profiles. Purposely designed for the data platforms as a single source of truth; marketers, data teams and...

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Snowplow
Vested
Agency • Marketing Tech
2 Offices
121 Employees
5 Benefits
The world's leading marketing and communications consultancy for financial services

Vested is a world-leading integrated marketing and communications consultancy focused exclusively on the financial services industry. We were founded in 2015 with a mission to help shape a better financial services system that is more accessible, transparent, and sustainable. Today, Vested is the world's fourth-largest financial services agency, comprising over 100 employees widely recognized for their industry expertise, creativity, and...

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Vested
Denver Technology
Information Technology
3 Offices
43 Employees

At Denver Technology our mission is to optimise business performance through harnessing the power of technology. We do this by empowering the Energy and Natural Resources sector; leveraging tailored technology solutions and a commitment to enhancing operational efficiency, safety, and sustainability. Established in 1988, Denver Technology has a legacy of over three decades and a strategic presence in the resource-rich regions of...

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Denver Technology
Proxar IT Consulting
Information Technology
2 Offices
21 Employees
Proxar IT Consulting provides expert IT services, cloud solutions, and digital transformation support.

Delivering innovative IT solutions that help businesses modernise, secure, and scale with confidence. We specialise in aligning technology with business goals through expert guidance, cloud adoption, and digital optimisation. Proxar IT Consulting supports organisations with reliable infrastructure, enhanced security, and smarter ways of working, enabling long-term growth and operational efficiency in a fast-changing digital world.

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Proxar IT Consulting
Sandbox Group
6 Offices
192 Employees

Engage. Entertain. Educate. Sandbox Group is a London-based group operating a network of learning businesses. At SBX we look to build, assemble, nurture and support the scaling of a diverse family of brands and services with like-minded partners, entrepreneurs and operators where the whole is greater than the sum of its parts. All towards the singular goal of fun engaged learning. At...

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Sandbox Group
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ai2io
Artificial Intelligence • Software • Automation
London
10 Employees
From Transformative AI to Foundational I/O — Custom solutions for your unique business needs!

Our Mission is to guide our clients on their technological adventure, helping them confidently choose, design, or build the tools that propel their business success. AI2IO Software helps organizations navigate the complex landscape of technology solutions, from basic software integration and automation to cutting-edge AI implementations. Our expertise spans custom software development, seamless system integrations, and optimization of low-code platforms,...

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ai2io
Focus Group (UK)
Information Technology • Cybersecurity
20 Offices
638 Employees
16 Benefits Hiring Now

Welcome to Focus Group. Established in 2003, we’re proud to be one of the UK’s leading independent providers of essential business technology. Here to take care of all your telecoms, IT and connectivity services. This means everything in one place, one point of contact and one bill to cover everything you need. SME or global enterprise business; public sector, service...

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Focus Group (UK)
Erickson Immigration Group
7 Offices
225 Employees
10 Benefits

Our goal is to uncomplicate the complicated. Erickson Immigration Group provides a full line of business immigration solutions and global immigration management services for companies throughout their growth stages, from start-ups to fast-paced, multinational corporations worldwide. Our dynamic immigration team has worked with some of the largest companies in the world across various industries, such as technology, finance, and healthcare....

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Erickson Immigration Group
Smith & Nephew
Healthtech • Biotech
25 Offices
15,318 Employees
13 Benefits Hiring Now

Smith+Nephew is a global medical technology company. We design and manufacture technology that takes the limits off living. We support healthcare professionals to return their patients to health and mobility, helping them to perform at their fullest potential. From our first employee and founder, T.J. Smith, to our team today, it’s our people who make Smith+Nephew a unique place. Yes, we love...

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Smith & Nephew

Smith & Nephew's Top Stability & Growth Strengths

Strong Revenue Growth: Recent results show mid-single-digit underlying growth through 2024–2025, with management reiterating guidance for continued growth in 2026. Early 2026 updates indicate broad-based contributions across units despite some subsegment variability.

Profitability: Trading profit and margins improved, supported by execution of the 12‑Point Plan and the transition to the RISE strategy. Management is guiding to further profit growth alongside higher returns.

Healthy Cash Flow: Free cash flow strengthened in 2025 with guidance for robust generation in 2026. Share repurchases completed and newly announced buybacks signal confidence and disciplined capital allocation.

Concured
Artificial Intelligence • Software
London
12 Employees

Automatically turn your readers into customers with concured Personalization.

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Concured
Smartly Video and Display
Information Technology • Automation
London
120 Employees

Smartly Video and Display provides the leading next-generation Creative Management Platform for marketers at the world’s largest brands to enable them to scale their digital creative. Smartly V&D connects creative and media workflows using Intelligent Automation™, making it easy and fast to produce and optimize relevant ad creative across all digital channels. These ads are 60% more cost-efficient to produce,...

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Smartly Video and Display
Zayo
Cloud • Enterprise Web • Information Technology • Other
21 Offices
4,000 Employees
26 Benefits
We Connect What's Next

Zayo Group Holdings, Inc. is a leading global communications infrastructure platform, delivering a range of solutions, including fiber & transport, packet and managed edge services. Zayo owns and operates a Tier 1 IP backbone spanning 134,000 miles across North America and Europe. By providing this mission-critical bandwidth to its category-leading customers across the wireless, hyperscale, media, tech and finance industries,...

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Zayo

Zayo's Top Stability & Growth Strengths

Strong Market Position & Advantage: Consistent top-tier placement in U.S. Wavelength Services (No. 2) alongside operation of a Tier 1 global IP backbone and one of the largest North American fiber footprints signals meaningful competitive strength. Recognitions and independent confirmations of its network scale and interconnection depth underscore an advantaged position serving hyperscalers, carriers, and large enterprises.

Market Expansion: The May 1, 2026 close of Crown Castle’s Fiber Solutions business added roughly 90,000 metro route miles and 40,000+ on‑net locations, materially enlarging reach to about 224,000 North American route miles. Parallel long‑haul build programs exceeding 15,000 route miles and new AI‑corridor routes further extend geographic coverage and data‑center connectivity.

Future-Ready Strategy: Network modernization to 400G-class capabilities (with 800G‑ready plans) and purpose-built AI corridors aligns capacity with fast-growing AI and cloud demand. An anchor customer commitment and expanded data‑center on‑ramps indicate proactive positioning for next‑wave bandwidth needs.

Cassava Technologies
Information Technology • Software
London
33 Employees

As a company that is firmly rooted in Africa, Cassava Technologies envisions a digitally connected future for every African. We are on a mission to use technology to transform the lives of individuals and businesses across the continent by enabling social mobility and economic prosperity. We are Africa’s first integrated technology company of continental scale, with operations and activities in...

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Cassava Technologies
Sloneek
HR Tech • Information Technology • Software
London
28 Employees

Why choose Sloneek®? It's quick to implement and even quicker to love. 🐘 Fast deployment 80% of mid-size companies have basic functionality set up within 3 days of importing users. It usually takes no more than two weeks to fully implement all modules. 🐘 Friendly interface The users need no training. However, an in-app contextual help, instructional videos and rich...

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Sloneek
JK Tech
Artificial Intelligence • Cloud • Consulting
9 Offices
2,279 Employees
10 Benefits

JK Tech is a specialized Gen AI and Data consulting firm, leveraging deep domain expertise in Retail, CPG, and Insurance to create tailored solutions for our clients. Our innovative Gen AI accelerators, branded as JIVA, address critical challenges like Accuracy, Security, and Scalability, enabling enterprises to accelerate their journey from POC to production. We combine structured and unstructured data with...

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JK Tech
LloydsDirect
Healthtech • Pharmaceutical • Manufacturing
Greenford
200 Employees

Order, track and get reminders for your NHS prescriptions – all in one place. Plus, get your medicine delivered to your door for free

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LloydsDirect

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