Top 100 Cybersecurity Companies in London
The Best of December 2024
Looking for a top cybersecurity consultant in London?
Check out our list of the best cybersecurity consulting companies to choose a partner that can secure your company. Preventing data breaches should be the top security priority for all businesses in the digital age.
To assist you in your search for a partner, we’ve compiled this list of the top cybersecurity consulting companies in London. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best London Cybersecurity Consultants
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1
- $5,000+
- 50 - 249 employees
- London, England
Read MoreTransputec, a midsize cybersecurity company, is located in Wembley, United Kingdom. They focus on cybersecurity, IT managed services, and custom software development and were launched in 1984.
Industries
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2
- $10,000+
- 250 - 999 employees
- London, England
Read MoreLink Group Global, inc. Is an Austin, Texas-based human resources agency. The midsize company was established in 2015. Their services include HR services, IT managed services, and IT staff augmentation.
Clients
- Danone
Industries
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3
- $50,000+
- 1,000 - 9,999 employees
- London, England
Read MoreFounded in 1991, ELEKS is a provider of software development, product design and technology advisory services. They offer cooperation models that fit the goals, resources and timelines of Fortune 500 companies, large enterprises, and small businesses. ELEKS has more than 2,000 specialists and 17 offices on three continents to serve their clients globally.
Clients
- Eagle Investment Systems (a subsidiary of BNY Mellon)
Industries
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4
- $5,000+
- 10 - 49 employees
- London, England
Read MoreTexaport is an established and reputable managed service provider with a strong focus on security and customer service excellence. Texaport empowers organizations with comprehensive managed services that combine exceptional customer service, strategic digital transformation, and robust security solutions.
Founded in 2012, Texaport has been providing IT solutions, Consultancy, and Cybersecurity to clients throughout the UK and across the globe.
Industries
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5
- $5,000+
- 1,000 - 9,999 employees
- London, England
Read MoreERRNA is a blockchain company founded in 2015. The small San Jose, California-based team provides blockchain, cybersecurity, marketing strategy, mobile app development, and more.
Industries
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6
- Undisclosed
- 50 - 249 employees
- London, England
Read MoreFounded in 2019, BreachLock Inc is a cybersecurity company. They are in New York, New York and have a midsize team. Their services include cybersecurity, IoT development, application testing, compliance consulting, and more.
Industries
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7
- $10,000+
- 250 - 999 employees
- London, England
Read MoreA1QA logo is a quality assurance and software testing company founded in 2002. Based in Denver, they have a team of 200+ employees that specialize in application testing and cybersecurity. They primarily serve midmarket clients in the IT and telecommunications industries.
Clients
- Adidas
Industries
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8
- Undisclosed
- 10 - 49 employees
- London, England
Read MoreHewardMills is a Data Protection Office (DPO) services company based in London with offices in Dublin, San Francisco, Berlin, and Zurich. The company has a team of more than 30 that provides business consulting, cybersecurity, and corporate training services to various companies.
Clients
- Monzo
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9
- $1,000+
- 10 - 49 employees
- London, England
Read MoreSmartdesc is a London-based IT company with a team of fewer than 50 people. Founded in 2011, they offer IT strategy consulting, cloud consulting, and cybersecurity solutions for small and mid-market businesses, primarily non-profit organizations.
Clients
- Mind
Industries
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10
- $1,000+
- 10 - 49 employees
- London, England
Read MoreQuema OÜ is a small IT strategy consulting and cloud consulting & SI company. The Tallinn, Estonia-based company was founded in 2022. Their team offers IT strategy consulting and cloud consulting & SI.
Clients
- Blyp
Industries
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11
- $25,000+
- 50 - 249 employees
- London, England
Read MoreEsynergy is a big data analytics company. They are headquartered in London, United Kingdom and have a midsize team. Their services include BI & big data consulting & SI, cloud consulting & SI, custom software development, mobile app development, and more.
Industries
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12
- $50,000+
- 50 - 249 employees
- London, England
Read MoreVodworks is a London, United Kingdom-based data analytics company. They offer BI & big data consulting & SI, custom software development, broadcast video, IT strategy consulting, and more and were launched in 2011.
Industries
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13
- $1,000+
- 10 - 49 employees
- London, England
Read MoreEstablished in 1999, Systemagic Ltd is an IT managed services company. The firm offers IT managed services, cloud consulting & SI, cybersecurity, and IT strategy consulting and has a small team. The firm is located in Bradford on Avon, United Kingdom and London, United Kingdom.
Industries
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14
- $5,000+
- 10 - 49 employees
- Billericay, England
Read MoreClear Thinking Solutions is a communication and IT solutions provider based in Essex, U.K., with an office in London. The company, founded in 2009, has a team of more than 20 that provides IT managed services, cybersecurity, and IT strategy consulting to small and midmarket companies.
Industries
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15
- Undisclosed
- 50 - 249 employees
- London, England
Read MoreSagiton is a business-oriented software house located in Wroclaw, Poland. The company was founded in 2010 and now employs a team of 48 people. Sagiton provides custom software development, cybersecurity, mobile app development, IT strategy consulting, marketing strategy, and web design services. Most of their clients are small businesses.
Clients
- TapWinWin
Industries
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16
- Undisclosed
- 1,000 - 9,999 employees
- London, England
Read MoreBSI Group is an IT firm headquartered in London. Their midsized team specializes in cybersecurity, IT strategy consulting, and business consulting.
Clients
- MED49
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17
- $25,000+
- 10 - 49 employees
- London, England
HEXENS is a London, United Kingdom-based cybersecurity company. The small company was established in 2021. Their team focuses on cybersecurity.Read MoreIndustries
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18
- $1,000+
- 10 - 49 employees
- London, England
Read MoreCloudserve is a cloud solutions provider based in Bournemouth, England with an office in London. Founded in 2009, their team of fewer than 50 professionals offers IT managed services, IT strategy consulting, and cloud consulting & SI services for small and medium-sized businesses. They have experience working in various industries, including hospitality, financial services, and IT.
Clients
- FJB Hotels
Industries
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19
- $10,000+
- 10 - 49 employees
- London, England
Hivemind Technologies is a devops managed services company. Their small team is headquartered in Berlin, Germany and London, United Kingdom. The company focuses on devops managed services, microservices architecture services, cloud consulting & SI, cybersecurity, and more.Read MoreClients
- Payone
- Siemens Energy
- Elvah
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20
- $1,000+
- 10 - 49 employees
- London, England
Read MoreTibus Ltd is an internet company based in Belfast, Ireland that was founded in 1996. Their team of around 30 employees provides managed IT services to mid-market and small businesses in the IT sector.
Industries
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21
- $1,000+
- 10 - 49 employees
- Potters Bar, England
Read MoreIT managed services company TWC IT Solutions was established in 2011. They are located in Potters Bar, United Kingdom; Jersey City, New Jersey and Central, Hong Kong and have a small team. Their services include IT managed services, IT strategy consulting, cloud consulting & SI, unified communications consulting & SI, and more.
Industries
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22
- $50,000+
- 10 - 49 employees
- London, England
Founded in 2023, Opstergo is a cloud consulting & SI company. The small Zagreb, Croatia-based team specializes in cloud consulting & SI, devops managed services, and cybersecurity.Read More -
23
- $25,000+
- 10,000+ employees
- Lyne, England
Read MorePersistent Systems is a software development firm based in Pune, India. Founded in 1990, their team of over 12,000 employees provides custom software development, CRM consulting, and IT strategy services.
Industries
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24
- $5,000+
- 10 - 49 employees
- London, England
Findigo is a small IT staff augmentation company located in Warszawa, Poland. Launched in 2023, the team offers IT staff augmentation, web development, mobile app development, ux/ui design, and more.Read MoreIndustries
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25
- $1,000+
- 10 - 49 employees
- London, England
Read MoreTeceze Ltd is a London-based IT company founded in 2012 with more than 10 employees. They are experts in IT strategy consulting, cybersecurity, and IT managed services for clients that work in the industries of business services, consumer products, and more.
Clients
- Outsell, Inc.
Industries
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26
- Undisclosed
- 1,000 - 9,999 employees
- London, England
Read MoreValueLabs is a global business technology services and solutions provider based in Hyderabad, India with over 25 offices worldwide in the US, Europe, and Asia. Founded in 1997, ValueLabs' team of over 5,000 employees provides non-voice BPO/back office services and voice/call center capabilities.
Industries
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27
- $1,000+
- 50 - 249 employees
- London, England
WQsoftwares, a Marketing Strategy company, was established in 2014. The midsize team provides Marketing Strategy and cloud consulting & SI.Read More -
28
- $250,000+
- 2 - 9 employees
- London, England
SanRa is a Cybersecurity company established in 2022. The small team specializes in Cybersecurity.Read MoreIndustries
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29
- Undisclosed
- 250 - 999 employees
- London, England
Littlefish Managed IT Services is an IT managed services company. Their midsize team is located in Nottingham, United Kingdom; Sheffield, United Kingdom and London, United Kingdom. The firm specializes in IT managed services, cybersecurity, cloud consulting & SI, and IT strategy consulting. The firm was established in 2003.Read MoreIndustries
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30
- $1,000+
- 50 - 249 employees
- London, England
Midsize Cybersecurity company Clear Infosec, is based in Jersey City, New Jersey and Toronto, Canada. The team focuses on Cybersecurity and IT strategy consulting.Read MoreIndustries
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