10 Best Cybersecurity Companies In London

10 Best Cybersecurity Companies In London

Written by Deepak Bhagat, In Cybersecurity, Published On
March 29, 2023

Are you looking to hire one of the best UK cybersecurity companies? If you run any kind of business online, making an investment in strengthening your cybersecurity would be wise. With businesses getting targeted by millions of cyber attacks every year, you’ll want the peace of mind that comes with knowing that your website is well protected.

Top 10 Cybersecurity Companies In London


For businesses in London, these are the top 10 cybersecurity firms to consider using:

  • Microminder

Microminder is a leading global cybersecurity consulting firm with its headquarters in London and offices in over 20 countries across the globe.

The company focuses on cyber risk management, managed security services, vendor technology solutions, compliance and consulting, across a broad range of industries such as energy, finance, legal, healthcare, and many more.

Looking for a comprehensive cyber security provider to help shore up your online defences? Microminder would be one the best options to consider. To learn more about how the company can help, book a consultation with a Microminder expert.

  • HewardMills

HewardMills is primarily a provider of outsourced Data Protection Officers (DPO), but the firm also operates in other niches within the cybersecurity industry. HewardMills typically serves larger clients, providing outsourced data protection officers with a strong focus on data protection strategy and implementation. Additionally, HewardMills offers a comprehensive cybersecurity suite inclusive of risk assessment and mitigation, security reviews and operational support.

  • Transputec

Transputec is a London-based firm with end-to-end expertise in IT support, IT procurement, Cloud services, and managed cybersecurity. Transputec works with two partner firms, ThreatSpike Labs, and Cynance to help deliver its portfolio of cybersecurity services. In particular, these services include round-the-clock threat monitoring and real-time vulnerability reporting, advisory forensics, data loss prevention, and virtual penetration testing.

  • PWC

PWC London, working out of its Embankment Place offices, is a global leader in the professional services industry. Although the company is more popularly known for its consulting and advisory services, it also has an IT services division that is among the top 10 cybersecurity firms in London. PWC offers managed Chief Information Security Officer (CISO) services with a strong focus on threat intelligence, incident management, and enterprise-level privacy and data protection.

  • Ernst & Young

Similar to PWC, Ernst  & Young is a global professional services firm with a highly-rated IT division.  Ernst and Young’s IT practice includes a strong focus on cybersecurity, with an offering that includes cybersecurity architecture design and implementation, identity and access management, data protection and privacy, strategy, risk, compliance, and so on.

  • Darktrace

Darktrace is a leading London-based cybersecurity company that provides AI-based solutions to protect against cyber threats. This cybersecurity company offers four main products, which are DarkTrace Prevent, DarkTrace Detect, DarkTrace Respond, and DarkTrace heal, designed to help businesses prevent threats and respond effectively when threats are found.

DarkTrace primarily works by deploying its custom Cyber Security AI Loop which is designed with an open architecture that makes it easy to integrate with your systems.

  • Becrypt

Despite being relatively small, Becrypt is one of London’s highly-rated cybersecurity companies. The company has an impressive client portfolio that includes governments and several large multinational companies. Becrypt provides testing, consulting and managed services to clients in various industries. It mainly specialises in the development and delivery of End User Device platforms and the implementation of security monitoring systems.

  • BAE Systems

BAE is a major player in the defence industry, with a strong portfolio of cybersecurity services. The company has several locations across the globe, alongside several offices within the UK, including in London. BAE Systems’ cybersecurity portfolio mainly comprises a range of enterprise security solutions which include advisory and incident response capabilities, alongside cross-domain solutions.

  • Kaspersky

Kaspersky is one of the biggest cybersecurity companies in the world. It provides cybersecurity products and services including its own antivirus, endpoint protection, online payment protection, VPN, and other cybersecurity solutions. Kaspersky’s cyber security solutions are designed to serve different business types so there are dedicated product lines for small, medium and large-scale clients.

  • McAfee

McAfee is another of the biggest cybersecurity companies in the world. While the company is well-known for its popular antivirus, it offers additional solutions for endpoint protection and cloud security. McAfee is headquartered in the USA, but it has a London office with a significant presence. McAfee’s cybersecurity solutions cater to all levels of technical expertise so you’re sure to find a package that suits your business.

How to Pick the Right Cybersecurity Company

We’ve covered 10 cybersecurity companies that are each highly rated and can be relied upon to get the job done. So how do you know which one is best for you? Here are a few factors to consider:

Expertise and Experience: When dealing with cyber security, it’s best to choose a team with dedicated cybersecurity experts rather than IT generalists. For example, a firm like Microminder ensures that all its cybersecurity experts possess relevant certifications such as CREST and ISO27001.

Services Offered: Cybersecurity covers a broad range of services and skill sets, and some companies may have a greater depth of expertise in certain areas than in others. For the best results, you should choose a cybersecurity firm that focuses specifically on the area of protection you’re concerned with.

Flexibility: Choosing a cybersecurity company that is flexible enough to create custom plans to suit your particular needs is a good idea. Since no two cybersecurity situations will be exactly the same, some degree of flexibility will help ensure that you get just the right solution to fit your business.

Cost: The best quality of cybersecurity protection won’t necessarily come cheap, but costs can be made more manageable by looking for companies that suit your budget and size. For small-medium scale businesses, the costs involved in working with larger outfits like BAE Systems, for example, may be unjustifiable.

Getting Started With Cybersecurity

As you’ll have noticed, there are quite a few options to consider when picking a cybersecurity firm in London. While all the firms on this list would be considered among the best cybersecurity companies in London, you can evaluate their suitability using the tips we’ve shared above. If we had to recommend one firm in particular, though, it would be Microminder, given its comprehensive cybersecurity offering and ability to cater to companies of all sizes.

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