Top 10 Penetration Testing Companies UK

Top 10 Penetration Testing Companies UK

The United Kingdom has some of the greatest penetration testing businesses in the world. Yet, with so many alternatives available, how can you know which one is best for you? In this post, Let’s look at 10 of the best penetration testing companies in the UK and explore what sets them apart from the competition.

Here is the list of the top 10 penetration testing companies in UK
  • 1. Qualysec
  • 2. SecureWorks
  • 3. Claranet Cyber Security
  • 4. NCC Group
  • 5. Nord Security
  • 6. Coalfire
  • 7. BAE Solutions
  • 8. Kroll
  • 9. BreachLock Inc
  • 10. Trustwave

What is Penetration Testing ??

Penetration testing (also known as pen testing or ethical hacking) is a process of testing a computer system, network, or web application to identify vulnerabilities and weaknesses that could potentially be exploited by attackers.

The objective of penetration testing is to simulate a real-world attack scenario to identify security weaknesses and to help organizations improve their security posture. Penetration testing can be done manually or through automated tools and typically involves the use of a variety of techniques, including social engineering, network scanning, vulnerability scanning, and exploitation.

How is Penetration Testing done in a Company ??

The purpose of the penetration testing process is to discover weaknesses in your system before they can be exploited by malicious individuals, and it employs simulated real-world attacks for this purpose. By conducting such tests, you can identify vulnerabilities and address them before they become security risks.

When you hire from the top 10 penetration testing companies in the UK. These firms will normally use a standardized technique to find vulnerabilities in your systems. They use a combination of automatic scans and manual analysis to identify and exploit possible flaws, providing you with a deeper knowledge of the dangers associated with each vulnerability.

What makes penetration testing important for your business?

Penetration testing, also known as ethical hacking, is an essential part of an organization’s cybersecurity strategy. Here are some of the reasons why it is important:

  1. Finding vulnerabilities: Penetration testing enables a business to detect weaknesses in its IT infrastructure that hackers or other hostile actors may exploit.
  2. Evaluating a company’s overall security posture: Penetration testing assesses a company’s entire security posture. This evaluation can assist the company in identifying areas where it may be lacking in security and taking action to enhance its security posture.
  3. Meeting compliance needs: As part of their compliance obligations, several sectors and regulatory agencies demand firms do penetration testing. Failing to meet these standards may result in legal and financial ramifications.
  4. Doing penetration testing suggests that a business takes its cybersecurity duties seriously and is taking precautions to secure its assets and data.
  5. Cost savings: Penetration testing may assist an organization in identifying vulnerabilities before attackers exploit them, thereby sparing the firm considerable expenses associated with a data breach or other cyber assault.

Is it important to choose the right penetration testing company in the UK?

Yes, it is important to choose the right penetration testing company in the UK. Penetration testing, also known as ethical hacking, is a critical part of an organization’s cybersecurity strategy.Simulating an attack on an organization’s IT infrastructure to identify vulnerabilities that malicious actors could exploit is involved.

Choosing the wrong penetration testing company can result in a range of negative consequences such as a false sense of security, wastage of resources, and Damage to reputation.

5 things to look for in a penetration testing company

  1. Identify vulnerabilities: Penetration testing helps businesses to identify potential security vulnerabilities in their systems and networks.
  2. Ensure compliance: Many businesses are required by regulations and standards to conduct regular penetration testing to ensure that they are meeting the necessary security requirements.
  3. Protect against cyber attacks: Cyber attacks can have serious consequences for businesses, including loss of data, financial losses, and damage to reputation. By conducting penetration testing, businesses can identify and address vulnerabilities before they can be exploited by attackers.
  4. Reduce risk: Penetration testing helps businesses to reduce the risk of security breaches and the associated costs
  5. Build customer trust: Customers are increasingly concerned about the security of their data and are more likely to do business with companies that demonstrate a commitment to security.

Let’s Look at the Top 10 Penetration testing companies in UK

1. Qualysec

Top 10 Penetration Companies in UK

Qualysec is a cybersecurity company founded in 2020 that has quickly become one of the most trusted names in the industry in UK. The company provides services such as VAPT, security consulting, and incident response.

Although Qualysec Oppressional office is not situated in UK, Qualysec’s extensive knowledge and expertise in cybersecurity testing services have earned a reputation among the top 10 penetration testing companies in UK.

Technicians at Qualysec can detect flaws that fraudsters could abuse. After these flaws have been found, Qualysec collaborates with the organization to establish a plan to address them and boost the company’s overall security posture. Among the several services available are:

  1. Web App Pentesting
  2. Mobile App Pentesting
  3. API Pentesting
  4. Cloud Security Pentesting
  5. IoT Device Pentesting
  6. Blockchain Pentesting

The Qualysec team is made up of seasoned offensive specialists and security researchers who collaborate to give their clients access to the most recent security procedures and approaches. They provide VAPT services using both human and automated equipment.

In-house tools, adherence to industry standards, clear and simple findings with reproduction and mitigation procedures, and post-assessment consulting are all features of Qualysec’s offerings.

The solution offered by Qualysec is particularly beneficial for businesses that must adhere to industry rules or prove their dedication to security to clients and partners. So, by doing routine penetration testing, businesses may see weaknesses and fix them before thieves attack them.

As a result, Qualysec is rated as the best of the top 10 Penetration testing companies in Uk

2. SecureWorks


SecureWorks is a global cybersecurity company that offers a range of services, including penetration testing, incident response, and threat intelligence. They have a team of over 4,000 security professionals and serve clients across various industries, including healthcare, finance, and government. SecureWorks is known for its comprehensive approach to cybersecurity, which includes both technical and strategic solutions.

3. Claranet Cyber Security


Claranet Cyber Security is our global cybersecurity services division for penetration testing, hacking training, and managed security services, strengthened through the addition of NotSoSecure and Sec-1. It majorly provides services such as Penetration testing, Red Teaming, Endpoint Detection and Response (EDR) – Managed Detection and Response (MDR) – Managed cyber security services for AWS – Managed firewalls – Continuous Security Testing – Governance, Risk Management, Compliance (GRC) – Cybersecurity training and many more.

4. NCC Group

NCC Group

NCC Group is a global expert in cyber security and risk mitigation, working with businesses to protect their brand, value, and reputation against the ever-evolving threat landscape.

5. Nord Security

Nord Security

Nord Security is one of the world’s leading providers of digital security and privacy solutions for businesses and individuals. It is a home for advanced security solutions that share the Nord brand and values. Today, millions of customers worldwide use its products and all the major cybersec experts and top media outlets praise them.

6. Coalfire


Coalfire is the cybersecurity advisor that helps private and public sector organizations avert threats, close gaps, and effectively manage risk. By providing independent and tailored advice, assessments, technical testing, and cyber engineering services, we help clients develop scalable programs that improve their security posture, achieve their business objectives

7. BAE Solutions


BAE solutions combine large-scale data exploitation, ‘intelligence-grade’ security, and complex services and solutions integration.

They operate in four key domains of expertise: Cyber Security; Financial Crime; Communications Intelligence; and Digital Transformation.

Specialties: Advanced Threat Protection (APT), Email Security, Mobile Security, Network Security, Penetration Testing, Professional Services, Threat Management & Intelligence, Vulnerability Assessment & Mgmt

8. Kroll


Kroll is the leading global provider of risk solutions. We‘ve been helping clients make confident risk management decisions about people, assets, operations, and security for more than 40 years.

Specialties: Compliance, Data Breach Prevention, Incident & Breach Response, Penetration Testing, Risk Management, Vulnerability Assessment & Mgmt

9. BreachLock Inc

BreachLock Inc

BreachLock, Inc. founded in 2019, specializes in scalable and comprehensive Penetration Testing as a Service (PTaaS) and has been recognized as a global leader in the cybersecurity industry. As a cloud-native innovator, BreachLock delivers market-disrupting PTaaS by leveraging the power of AI to scale the skill and creativity of human Penetration Testers, giving enterprises complete security posture visibility from an adversary perspective.

10. Trustwave


Trustwave helps businesses fight cybercrime, protect data and reduce security risks. Specialties: Application Security, Data Security, DLP, Email Security, Endpoint Security, Managed Services, MFA/Authentication Management, NAC, Network Security, Penetration Testing, SIEM, UTM, Vulnerability Assessment & Mgmt, Web Gateway Security/VPN


Overall, penetration testing is an important tool for organizations to improve their cybersecurity posture, protect their assets and data, and demonstrate due diligence in their cybersecurity practices.

In conclusion, an organization in need of a penetration testing company should be looking for the above-mentioned points to compare the top 10 companies and choose the best that suits you. Qulaysec is the best penetration testing company as it has all it needs to be an ideal company and satisfy its customer with the best.

Hence, Qualysec has been successfully serving clients across various industries, including banking and finance, healthcare, e-commerce, and IT. They have helped their clients identify and mitigate vulnerabilities and prevent data breaches.

If you are living in UK and looking for a cybersecurity provider for your organization. Here are the top 3 cybersecurity companies in UK.

Furthermore, Qualysec is among the top 10 penetration testing companies in UK. Hence, their comprehensive approach, commitment to customer service, and competitive pricing make them the go-to choice for businesses looking to secure their online presence. If you’re looking for a penetration testing company, Qualysec should be at the top of your list. Clear your if’s and but’s and talk to our Experts and fill out your requirements.

Frequently Asked Questions

Q. What is penetration testing?

Ans. Penetration testing is a process of identifying security vulnerabilities in a system, network or application by simulating a real-world attack.

Q. What are the benefits of penetration testing?

Ans. Penetration testing helps to identify security weaknesses, mitigate risks, comply with regulatory requirements, and improve overall security posture.

Q. Is penetration testing different from vulnerability scanning?

Ans. Penetration testing involves simulating a real-world attack to identify vulnerabilities and exploit them, whereas vulnerability scanning is an automated process of identifying potential vulnerabilities in a system or network.

Q. What are the types of penetration testing?

Ans. The main types of penetration testing include network penetration testing, web application penetration testing, wireless network penetration testing, and social engineering penetration testing.

Q. What is the penetration testing methodology?

Ans. The penetration testing methodology typically involves five stages: planning and reconnaissance, scanning, gaining access, maintaining access, and covering tracks.

1 Comment

Leave a Reply

Your email address will not be published. Required fields are marked *