Reviews updated: 25-06-2026

The best Cybersecurity agencies in the United Kingdom

Choose from the 50 agencies selected and listed below
Each agency is evaluated by our team, and only reviews confirmed by their author count towards the score. Sponsored positions are always labelled.See our methodology
4,8/5 on Trustpilot · 704 reviews

All Cybersecurity agencies in the United Kingdom

Field Effect
Located in City of Westminster
159 team members
View profile
Overview Field Effect offers a managed detection and response (MDR) solution designed for the artificial intelligence era. The platform combines the expertise of former intelligence operatives with
Allocation
Cybersecurity

Quality

Not rated

Control IT Solutions
Located in Perth
5 team members
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Overview Control IT Solutions is a managed IT services provider serving small and medium-sized businesses. The company offers remote management of IT infrastructure, enabling organisations to focus on
Allocation
Cloud ComputingCybersecurity

Quality

Not rated

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Red Mosquito
Located in Glasgow
17 team members
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Overview Red Mosquito is a managed IT services provider based in Glasgow, specialising in managed services, telecommunications, cybersecurity and Microsoft Cloud solutions. The agency was acquired by
Allocation
Cloud ComputingCybersecurity

Quality

Not rated

Codexelle
Located in Greater London
Founded in 2017
11 team members
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Presentation Codexelle is a web design agency based in New York, operating across four global offices: New York, Los Angeles, London and Manchester. Founded in 2016, the agency focuses on creating
Allocation
WebsiteUX/UI DesignBlockchainCybersecurity

Quality

Not rated

Clyde & Co Llp
Located in City of London
5465 team members
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Overview Clyde & Co is an international law firm with nearly a century of experience at the heart of global commerce. The firm positions itself as an expert in risk management and navigating commercial
Allocation
BlockchainCybersecurity

Quality

Not rated

Thorntons Law
Located in Dundee
479 team members
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About us Thorntons is one of Scotland's largest integrated law firms. Through a network of offices located in Dundee, Edinburgh, Glasgow, Inverness, Angus, Fife and Perth, the firm offers a comprehensive
Allocation
Cloud ComputingCybersecurity

Quality

Not rated

Boxphish
Located in Leeds
35 team members
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Boxphish specializes in identifying vulnerabilities and improving cyber security awareness across organizations. They provide a platform that focuses on enhancing the understanding of cyber security among
Allocation
Cybersecurity

Quality

Not rated

Stock IT Ltd
Located in Cwmcarn
1 team member
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Stock IT Ltd provides various IT services including Office 365 solutions, PC and laptop sales, website design and hosting, backups and security, as well as remote and on-site support. They have a small
Allocation
WebsiteCybersecurity

Quality

Not rated

Sytech Consultants
Located in Stoke-on-Trent
Founded in 1976
77 team members
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Sytech is the UK's longest established digital forensics provider, working to assist businesses with cyber and IT security since 1976. They specialize in enhancing security measures and responding to
Allocation
Cybersecurity

Quality

Not rated

ACUTEC
Located in Coleshill
Founded in 1995
31 team members
View profile
Overview ACUTEC is a technology service provider with nearly 30 years of experience in the industry. The agency supports businesses in simplifying and optimising their IT infrastructure. Specialising in
Allocation
Cloud ComputingCybersecuritySoftware Development

Quality

Not rated

Micro Focus
Located in Newbury
3724 team members
View profile
Overview Micro Focus is a brand of OpenText specialising in enterprise software solutions and services. The organisation brings several decades of expertise to help customers unlock data, connect people
Allocation
Web DevelopmentMobile ApplicationCloud ComputingCybersecurity

Quality

Not rated

Loose Connections
Located in Ringwood
10 team members
View profile
Loose Connections is a full-service digital agency based in Ringwood, UK, specializing in web design, digital marketing, SEO, branding, IT support, and cybersecurity. The agency emphasizes collaboration
Allocation
WebsiteBrandingCybersecuritySEO

Quality

Not rated

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Cybersecurity agencies by location

Main cities

Aberdeen (6)Belfast (1)Birmingham (8)Bradford (8)Brighton (4)Bristol (4)Cambridge (3)Cardiff (3)Coventry (7)Derby (8)Derry (1)Dundee (8)Edinburgh (6)Glasgow (5)Leeds (7)Leicester (3)Lisburn (1)Liverpool (6)London (39)Manchester (11)Milton Keynes (7)Newcastle Upon Tyne (15)Newport (3)Nottingham (3)Oxford (9)Plymouth (3)Portsmouth (4)Reading (5)Sheffield (18)Southampton (3)Swansea (3)York (4)

By region

EnglandNorthern IrelandScotlandWales

Other countries

FranceBelgiumSwitzerlandSpain

Similar categories

Related services

Web AdministrationBig Data & BIBlockchainCloud ComputingIT Services

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