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Top Quantum Computing Companies in London (6)

Mastercard
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
We are a global technology company in the payments industry.

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re building a resilient economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help...

Mastercard

Mastercard's Top Stability & Growth Strengths

Strong Revenue Growth: Net revenue rose 14% year over year in Q2 2026 (12% currency‑neutral) to $9.3B, with first‑half 2026 up 15% and full‑year 2025 up 16% (15% currency‑neutral). These results indicate sustained top‑line momentum across recent periods.

Diversified Revenue Streams: Value‑Added Services & Solutions grew 20% in Q2 2026 (18% currency‑neutral) and 23% in 2025, outpacing Payment Network growth. This mix shift adds a faster‑growing second engine alongside the core network.

Resilient & Sustainable Growth: Transaction fundamentals remained healthy in Q2 2026—gross dollar volume +8% to $2.9T, cross‑border +12%, and switched transactions +9% (local‑currency). Multi‑year growth from 2025 into the first half of 2026 underscores durable momentum.

Atos
Big Data • Cloud • Software • Cybersecurity • Quantum Computing
44 Offices
75,792 Employees
26 Benefits

Atos is a global leader in digital transformation with 110,000 employees and annual revenue of € 12 billion. European number one in Cybersecurity, Cloud and High-Performance Computing, the Group provides tailored end-to-end solutions for all industries in 73 countries. Pioneer in decarbonization services and products, Atos is committed to a secure and decarbonized digital for its clients. Atos operates under...

Atos
Microsoft
Software • Quantum Computing • Metaverse • Infrastructure as a Service (IaaS)
88 Offices
206,870 Employees
47 Benefits Hiring Now

At Microsoft, our mission is to empower every person and every organization on the planet to achieve more. Our mission is grounded in both the world in which we live and the future we strive to create. Today, we live in a mobile-first, cloud-first world, and the transformation we are driving across our businesses is designed to enable Microsoft and...

Microsoft

Microsoft's Top Stability & Growth Strengths

Strong Revenue Growth: Revenue and operating income are rising year over year, with continued double-digit expansion led by cloud and productivity lines. Cloud revenue reached a new quarterly high and Azure grew strongly, indicating sustained demand.

Strong Market Position & Advantage: Microsoft is positioned as a market leader in enterprise productivity, identity/security, and developer tooling, and a top-two hyperscale cloud provider. This breadth, plus hybrid and compliance capabilities, provides strategic advantage in regulated and enterprise environments.

Resilient & Sustainable Growth: Large contracted backlog provides multi-period revenue visibility that supports durability through cycles. Growth across multiple business areas helps offset choppier consumer-facing segments like devices and gaming.

Exohood Labs
Artificial Intelligence • Blockchain • Software • Quantum Computing
London
45 Employees

Exohood Labs Limited is the for-profit division of our organization, dedicated to harnessing the power of Artificial Intelligence, Quantum Computing and Blockchain technologies for the advancement of society. This subsidiary division of Exohood Labs was established to complement the non-profit entity founded in 2020. The purpose of Exohood Labs Limited is to enhance our research capabilities and ensure sustainable growth...

Exohood Labs
Google
AdTech • Software • Quantum Computing • Metaverse
34 Offices
244,433 Employees
51 Benefits

A problem isn't truly solved until it's solved for all. Googlers build products that help create opportunities for everyone, whether down the street or across the globe. Bring your insight, imagination and a healthy disregard for the impossible. Bring everything that makes you unique. Together, we can build for everyone.

Google

Google's Top Stability & Growth Strengths

Strong Market Position & Advantage: Google maintains dominant global search share, with Chrome and Android providing distribution that reinforces scale across Search, YouTube, and services. Cloud remains a fast‑growing No. 3, adding credibility across enterprise workloads.

Strong Revenue Growth: Alphabet reported strong year‑over‑year revenue acceleration in recent quarters, with double‑digit increases in Search and YouTube and an outsized surge in Google Cloud. Company filings and coverage also note continued momentum from 2025 into 2026.

Diversified Revenue Streams: Ads in Search and YouTube remain primary engines while Google Cloud is expanding rapidly, and paid subscriptions (YouTube, Google One) are scaling. This breadth underscores multiple monetization paths across services, cloud, and subscriptions.

IBM
Information Technology • Quantum Computing • Infrastructure as a Service (IaaS) • Big Data Analytics
73 Offices
533,854 Employees
45 Benefits

At IBM, work is more than a job - it's a calling: To build. To design. To code. To consult. To think along with clients and sell. To make markets. To invent. To collaborate. Not just to do something better, but to attempt things you've never thought possible. To lead in this new era of technology and solve some of...

IBM

IBM's Top Stability & Growth Strengths

Strong Revenue Growth: Recent results show full‑year and quarterly revenue increases with momentum into the next year, and guidance indicates continued top‑line expansion.

Healthy Cash Flow: Free cash flow rose meaningfully year over year and is expected to increase again, supporting reinvestment and resilience.

Future-Ready Strategy: Visible investments and roadmaps in AI‑enabled mainframes, hybrid cloud via Red Hat, and quantum, alongside recent acquisitions, position the portfolio for durable, innovation‑led growth.

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