Top Cybersecurity Companies in London

We've found the best
Cybersecurity Providers
for you.

Looking for the best cybersecurity company in London? UpCity compiles authentic reviews, company descriptions, project examples, and more into a list for you to review. Feel confident you're finding the top provider for your business.

UpCity offers objective, independent research and verified user reviews. We earn compensation from some providers who sign up for sponsored profiles. Learn more about our trusted providers.

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Provider's minimum per-project cost
Provider's minimum retainer cost
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Businesses provider works with
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13 Provider(s)Last Updated: October 28, 2025
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Zazz

London, ENG, GB + 1 More Location
5.0 | 1 review
Last reviewed on 9/8/2025
Zazz is a trusted software engineering and IT services partner helping enterprises deliver secure, scalable, and high-impact technology initiatives. We Solve complex enterprise challenges - legacy bottlenecks, technical debt, talent shortages, compliance risks, and system fragmentation.
Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$25,000 or more
Provider's minimum retainer cost
Retainer minimum
$5,000 or more, monthly
Provider updated information on 9/8/2025
Services Offered
Enterprise Resource Planning (ERP)Big Data & Business IntelligenceManaged Service ProvidersIT ServicesSystem IntegrationView All Services (32)
Award-winning IT consultancy in London, offering design, implementation, and support services in Data & Analytics, Cloud Computing, Security, BI & AI, and Applications
Businesses provider works with
Works with
Medium, Enterprise
Provider updated information on 1/31/2023
Services Offered
Cybersecurity
Cubit Technology is an information technology (IT) support provider specializing in managed services for marketing, design, public relations, and creative agencies. They offer outsourced IT support, consulting, help desk and remote support as well as network management services for businesses across various industries.
Businesses provider works with
Works with
Small
Provider updated information on 10/9/2024
Services Offered
IT ServicesCybersecurityCloud Consulting
Exponential-e is a UK Cloud, Connectivity, Communications, and Cyber Security pioneer, and a trusted technology partner for more than 3,000 companies. We have everything you need to create a tailored solution for your business addressing your unique technology challenges.
Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$25,000 or more
Provider updated information on 5/28/2024
Services Offered
Cybersecurity

Laburity

London, ENG, GB See Location
Laburity is a cyber security services, consultancy, solutions and products company where we do cyber security research as well to stay ahead of the game.
Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$1,000 or more
Provider's minimum retainer cost
Retainer minimum
$500 or more, monthly
Provider updated information on 12/4/2024
Services Offered
Cybersecurity
2022 Study: 50% of SMBs Have a Cybersecurity Plan in Place | UpCity

This UpCity study presents insight from 600 U.S. small business owners and IT experts on their latest cybersecurity practices, data breach prevention, and disaster recovery measures in 2022.

Advania

London, ENG, GB See Location
Advania is the tech company with people at heart, and we put people first in everything we do. Working across Azure, Dynamics 365, Microsoft 365, Security and Data, we empower people to create sustainable value with the clever use of technology.
Businesses provider works with
Works with
Small, Medium, Enterprise
Provider updated information on 9/16/2024
Services Offered
Managed Service ProvidersIT ServicesCybersecurityCloud Consulting

CybaVerse

London, ENG, GB See Location
CybaVerse simplifies cyber security for SMEs and MSPs with an all-in-one platform. We provide vulnerability scanning, Managed Detection and Response (MDR), expert support, and compliance tools, helping businesses stay secure, streamline operations, and meet regulatory requirements with ease.
Businesses provider works with
Works with
Small
Provider's minimum per-project cost
Per-project minimum
$5,000 or more
Provider's minimum retainer cost
Retainer minimum
$500 or more, monthly
Provider updated information on 7/22/2025
Services Offered
Cybersecurity
Who We Are
CEO
LinkedIn
CCO
LinkedIn
CTO (Cyber Security)
LinkedIn
We empower businesses across the UK with robust cyber security solutions. We don't believe security should be a luxury – it's an essential investment. That's why we offer a comprehensive suite of services designed to fit your unique needs and budget.
Businesses provider works with
Works with
Small, Medium
Provider's minimum per-project cost
Per-project minimum
$1,000 or more
Provider's minimum retainer cost
Retainer minimum
Less than $500, monthly
Provider updated information on 3/8/2024
Services Offered
Cybersecurity

VerifiedX

London, ENG, GB See Location
VerifiedX is a cybersecurity company that developed a highly-precise phishing/scam detector to protect businesses and individuals against losing money and sensitive information. A user-friendly technology adapted for everybody.
Businesses provider works with
Works with
Small, Medium, Enterprise
Provider updated information on 6/13/2025
Services Offered
Cybersecurity
First Response is a specialist cybersecurity, digital forensics and incident response company. Working with SMBs, SMEs & MSPs to protect their organisations, accelerate security maturity and reduce risk.
Businesses provider works with
Works with
Small, Medium, Enterprise
Provider's minimum per-project cost
Per-project minimum
$5,000 or more
Provider's minimum retainer cost
Retainer minimum
$500 or more, monthly
Provider updated information on 5/16/2022
Services Offered
Cybersecurity
Nicolson Bray is a boutique cyber security consultancy specialising in cyber security risk management and security solution delivery.
Provider updated information on 5/5/2022
Services Offered
Cybersecurity
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Managed Detection and Response, Penetration Testing & Red Teaming. Redscan arms your business to combat cyber security threats. Speak to our experts today.
Services Offered
Cybersecurity
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Services Offered
Cybersecurity
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Showing 13 of 13 Providers