Best Cybersecurity and Pentesting Agencies in United Kingdom

Defending your business against evolving cyber threats.

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Found 459 matching agencies

C
Clearswift
Protecting critical information through innovative cybersecurity solutions.

🇬🇧

50+

100+ usd / hr

43 years

5000+ usd

F
Foregenix
Protecting digital assets for a safer world 🌐💻

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50+

0+ usd / hr

16 years

0+ usd

T
Total IT Technology Solutions Ltd
Expert IT Support for UK Businesses

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10+

100+ usd / hr

19 years

5000+ usd

F
FORVIS
Helping you prepare for what's next.

🇺🇸

1000+

0+ usd / hr

102 years

0+ usd

V
Veracode
Secure software development and security

🇺🇸

250+

150+ usd / hr

19 years

10000+ usd

M
Memgraph
Fast. Scalable. Persistent.

🇬🇧

10+

0+ usd / hr

9 years

0+ usd

R
Ravelin Technology
Combating online fraud and secure payments

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50+

0+ usd / hr

11 years

0+ usd

C
Contino
Transforming businesses for a cloud-native world.

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250+

0+ usd / hr

11 years

0+ usd

K
Kocho
Expertise in Microsoft Identity, Security & Cloud Solutions

🇬🇧

250+

0+ usd / hr

24 years

0+ usd

B
BSI Group
Accelerating progress towards a sustainable world

🇬🇧

1000+

0+ usd / hr

0 years

0+ usd

E
ET Works
Making IT work for you

🇬🇧

10+

0+ usd / hr

32 years

0+ usd

B
BreachLock Inc
Accelerate security testing and remediation accuracy

🇺🇸

50+

0+ usd / hr

6 years

0+ usd

N
Neoslab Limited
Protecting, Defending, Redefining Cyber Security

🇬🇧

2+

50+ usd / hr

20 years

5000+ usd

C
Class Networks
Transforming communications for business, voluntary and public sectors

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10+

100+ usd / hr

36 years

5000+ usd

M
Mad Devs
Trusted engineering team for business growth

🇬🇧

50+

50+ usd / hr

9 years

50000+ usd

C
Callsign
Streamlining secure transactions and preventing fraud with AI-powered authentication

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50+

0+ usd / hr

14 years

0+ usd

T
TPXimpact Ltd
People-powered transformation for a better future

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250+

0+ usd / hr

17 years

0+ usd

R
ReputationDefender
Protecting online reputation worldwide

🇺🇸

50+

0+ usd / hr

19 years

0+ usd

I
Ivinco
Elevate your business with top-notch IT expertise

🇬🇧

10+

100+ usd / hr

16 years

5000+ usd

R
Rapid7
Secure Your Organization with Leading Cybersecurity Solutions

🇺🇸

1000+

150+ usd / hr

25 years

10000+ usd

H
Harvey Nash Group
Expertise in recruitment and IT services for global clients.

🇬🇧

1000+

0+ usd / hr

37 years

0+ usd

C
Camms
Delivering Enterprise Risk Management solutions

🇦🇺

250+

0+ usd / hr

29 years

0+ usd

D
Darktrace
Harden security inside and out

🇬🇧

1000+

150+ usd / hr

12 years

25000+ usd

I
IT Governance Ltd
Protecting data and cyber security for a safer digital world

🇬🇧

50+

0+ usd / hr

23 years

0+ usd

I
IOActive
Cybersecurity experts for a safer digital world 💻

🇺🇸

50+

150+ usd / hr

27 years

5000+ usd

A
Armor
Security that enables digital transformation.

🇺🇸

50+

0+ usd / hr

16 years

0+ usd

C
Censornet
Empowering business with autonomous cloud security 💻

🇬🇧

10+

0+ usd / hr

20 years

1000+ usd

A
ADM computing
Award-winning IT Support for Businesses

🇬🇧

10+

100+ usd / hr

41 years

5000+ usd

X
Xperience
Unlocking digital potential for businesses

🇬🇧

50+

0+ usd / hr

56 years

0+ usd

Z
Zenzero
Delivering industry-leading IT Support and Solutions

🇬🇧

50+

100+ usd / hr

21 years

5000+ usd

F
Featurespace
Your bank's loyal guard dog.

🇬🇧

50+

0+ usd / hr

17 years

0+ usd

M
Matillion
Delivering business-ready data faster today, not tomorrow.

🇺🇸

250+

0+ usd / hr

14 years

0+ usd

H
Herjavec Group
Protecting businesses from cyber threats

🇨🇦

250+

100+ usd / hr

22 years

10000+ usd

R
RelyWP
Reliable WordPress solutions for businesses worldwide.

🇬🇧

1+

0+ usd / hr

6 years

0+ usd

L
Lookout
Data-centric defense-in-depth security solutions

🇺🇸

250+

150+ usd / hr

18 years

5000+ usd

C
Ciklum
Transforming business experiences with next-gen technology.

🇬🇧

1000+

25+ usd / hr

23 years

25000+ usd

D
Databarracks
Keeping businesses operational, no matter what happens.

🇬🇧

10+

100+ usd / hr

22 years

5000+ usd

A
AAG
Unlock IT potential for business growth

🇬🇧

10+

100+ usd / hr

16 years

5000+ usd

D
Digital Guardian
Protecting Your Data Across the Globe

🇺🇸

250+

150+ usd / hr

22 years

10000+ usd

G
Guidance Software
Smarter protection for a safer digital world

🇺🇸

250+

150+ usd / hr

28 years

10000+ usd

C
Cybereason
Revolutionizing Security with Observability

🇺🇸

250+

150+ usd / hr

13 years

10000+ usd

S
SilverSky
Protecting our customers’ attack surface as vigorously as their bottom lines.

🇺🇸

250+

0+ usd / hr

28 years

0+ usd

G
Global Knowledge
Unlock Tech Skills and Unleash Potential

🇺🇸

1000+

0+ usd / hr

30 years

0+ usd

T
Trustmarque Solutions Ltd
Trusted Technology Partner for Real-Life Impact

🇬🇧

250+

100+ usd / hr

38 years

5000+ usd

N
Netmatters
Bespoke Software, IT Support, and Digital Marketing Solutions

🇬🇧

50+

50+ usd / hr

17 years

1000+ usd

S
Secureworks
Proven Threat Defense without breaking your budget

🇺🇸

1000+

0+ usd / hr

26 years

0+ usd

R
RiskIQ
Protecting digital estates with advanced threat intelligence

🇺🇸

50+

150+ usd / hr

16 years

5000+ usd

E
Exiger
Solving Global Supply Chain Challenges with Confidence

🇷🇴

250+

0+ usd / hr

12 years

0+ usd

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Understanding Cybersecurity and Penetration Testing

Cybersecurity and penetration testing are critical services that protect your organization's digital assets from malicious attacks. Pentesting simulates real-world cyberattacks to identify vulnerabilities before hackers can exploit them. Agencies in United Kingdom bring local market knowledge to tailor security assessments specifically for your industry and infrastructure.


Why Your Business Needs Cybersecurity Services

With cyber threats increasing in frequency and sophistication, protecting sensitive data is non-negotiable. Cybersecurity services safeguard against data breaches, ransomware, and other attacks that could result in significant financial and reputational damage. In United Kingdom, local regulations may also require stringent security measures, which expert agencies can help you meet.


The Penetration Testing Process Explained

Penetration testing involves planning, reconnaissance, scanning, exploitation, and reporting. Skilled testers use a variety of tools and techniques to probe your systems for weaknesses. Agencies in United Kingdom typically tailor their approach to reflect local threat landscapes and compliance requirements.


Types of Penetration Testing

There are several types of pentesting, including network, web application, wireless, social engineering, and physical security tests. A comprehensive security audit often combines these approaches to cover all possible attack vectors. Many United Kingdom agencies offer customized testing packages to suit your business size and sector.


Benefits of Hiring a Professional Cybersecurity Agency

Professionals bring specialized knowledge, updated threat intelligence, and advanced tools that internal teams might lack. They provide actionable insights and help implement security improvements. Working with a United Kingdom agency ensures faster response times and local expertise.


Typical Cybersecurity and Pentesting Costs

Costs vary depending on the scope and depth of testing. Hourly rates start at around $10, while comprehensive projects may have fixed budgets. Pricing in United Kingdom can differ based on agency size and market demand.


Common Vulnerabilities Found During Pentesting

Issues such as outdated software, misconfigured firewalls, weak passwords, and insecure APIs are frequently uncovered. Addressing these vulnerabilities proactively prevents costly breaches. Agencies in United Kingdom often provide detailed remediation plans aligned with local standards.


Compliance and Regulatory Considerations

Many industries are subject to regulations like GDPR, HIPAA, or PCI DSS that mandate regular security testing. Professional agencies help ensure your compliance and avoid penalties. Understanding United Kingdom-specific regulations is key to successful compliance.


How to Choose the Right Cybersecurity and Pentesting Agency

Look for certifications like CISSP, CEH, or OSCP, a proven track record, and transparent reporting processes. Consider agencies in United Kingdom with local references and relevant industry experience.


What to Expect From a Cybersecurity Assessment Report

Reports detail discovered vulnerabilities, risk ratings, and recommended mitigation strategies. Good agencies provide clear, actionable insights for both technical teams and decision-makers. Reports from United Kingdom agencies may also include compliance status with local laws.


Cybersecurity Tools Used by Agencies

Popular tools include Nessus, Metasploit, Burp Suite, and Wireshark. Agencies combine automated scanning with manual testing for thorough assessments. Tool choice and methodology can be adapted to suit United Kingdom's unique threat landscape.


Penetration Testing vs. Vulnerability Assessment

Vulnerability assessments identify and prioritize weaknesses, while pentesting actively exploits them to gauge real-world risk. Both are vital components of a comprehensive security strategy. Agencies in United Kingdom offer combined or standalone services based on your needs.


Frequency of Pentesting and Security Audits

Regular testing, typically annually or after significant system changes, is crucial. Frequent assessments keep up with evolving threats and technology. Local agencies in United Kingdom can recommend schedules aligned with regulations and risk tolerance.


Benefits of Managed Security Services

Beyond testing, many agencies offer ongoing monitoring, incident response, and security management to maintain a strong defense. Managed services from United Kingdom providers offer local support and rapid threat mitigation.


Preparing Your Organization for a Pentest

Ensure clear communication, define scope, and provide necessary access. Preparation reduces disruptions and maximizes test effectiveness. Agencies in United Kingdom often assist with readiness and post-test planning.

Frequently asked questions

Penetration testing simulates cyberattacks to find security weaknesses before hackers do. It's crucial for protecting your assets and ensuring compliance. Agencies in United Kingdom offer tailored testing for local threats.

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Cybersecurity & Pentesting agencies in United Kingdom

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