Top 100 Cybersecurity Companies in London
The Best of April 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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Featured providers
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- Undisclosed
- 250 - 999 employees
- Rockville, MD
Read MoreDataprise is a Rockville, Maryland-based IT managed services company. The firm provides IT managed services, cybersecurity, IT strategy consulting, and web development and is midsize.The firm was launched in 1995.
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- $1,000+
- 1,000 - 9,999 employees
- Austin, TX
Read MoreTPx Communications is an IT services company headquartered in Waltham, Mass. with additional offices in Irvine and Orange County, Calif., Boston, and San Francisco. It was founded in 2000 and now has a team 780 that provides IT managed services, productivity, collaboration & UC consulting & SI, cybersecurity and more to mostly midmarket companies.
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31
- Undisclosed
- 250 - 999 employees
- London, United Kingdom
Read MoreERP consulting and SI company Professional Advantage is in North Sydney, Australia. The midsize team offers ERP consulting and SI, cloud consulting & SI, BI & big data consulting & SI, cybersecurity, and more and was established in 1989.
Industries
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32
- $5,000+
- 50 - 249 employees
- London, United Kingdom
Read MoreSuntel Analytics, LLC is a West Palm Beach, Florida-based AI development company. Launched in 2022, the small team focuses on Artificial Intelligence, business consulting, corporate training, ai consulting, and more.
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33
- $5,000+
- 50 - 249 employees
- London, United Kingdom
Read MoreRiskIQ is a cybersecurity company based in San Francisco with a team of just over 150 employees. Established in 2009, they provide cybersecurity, business intelligence, big data consulting, and software integration services to clients in a variety of industries.
Clients
- Amazon
- Disney
- Bank of America
- Box
Industries
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34
- $5,000+
- 250 - 999 employees
- London, United Kingdom
Read MoreFounded in 2007, Lookout is a cybersecurity company. The firm focuses on cybersecurity and has a midsize team.
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35
- $5,000+
- 50 - 249 employees
- London, United Kingdom
Read MoreFounded in 1998, IOActive is a cybersecurity company. Their midsize team is headquartered in Seattle, Washington; London, United Kingdom; Madrid, Spain and , United Arab Emirates and offers cybersecurity.
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36
- $10,000+
- 250 - 999 employees
- Slough, United Kingdom
Read MoreGuidance Software is a software development firm that has been in operation since 1997. They are headquartered in Pasadena, Calif. and they have additional offices in Slough, U.K., Courbevoie, France, Waukesha, Wis., Rosemont, Ill., Dulles, Va., and New York. They have over 800 employees and they specialize in cybersecurity, IT strategy consulting, and IT staff augmentation. Their clients generally work in consumer services, government, or healthcare.
Clients
- Box
- Cisco
- Dropbox
- IBM
Industries
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37
- $10,000+
- 250 - 999 employees
- London, United Kingdom
Read MoreCybereason is a cybersecurity company launched in 2012. Their midsize team is in Boston, Massachusetts; London, United Kingdom and Tel-Aviv, Israel. The agency specializes in cybersecurity, BI & big data consulting & SI, and IT strategy consulting.
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38
- $10,000+
- 250 - 999 employees
- London, United Kingdom
Digital Guardian, an IT managed services company, was launched in 2003. Based in Waltham, Massachusetts; Reston, Virginia; Santa Clara, California and Lehi, Utah, their midsize team focuses on IT managed services, cybersecurity, and IT strategy consulting.Read MoreIndustries
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39
- $10,000+
- 250 - 999 employees
- London, United Kingdom
Veracode is a cybersecurity company based in Burlington, Massachusetts; London, United Kingdom and Boston, . The firm provides cybersecurity, application testing, and IT strategy consulting and has a midsize team.The firm was founded in 2006.Read MoreIndustries
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40
- $1,000+
- 1,000 - 9,999 employees
- London, United Kingdom
Emagine Consulting is a big data analytics company. Founded in 1994, the large company is in London, United Kingdom; Nanterre, France and Berlin, Germany. Their team focuses on BI & big data consulting & SI, cybersecurity, and mobile app development.Read MoreIndustries
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41
- $5,000+
- 50 - 249 employees
- London, United Kingdom
Digital Shadows, a cybersecurity company, is headquartered in London, United Kingdom and Dallas, Texas. Established in 2011, the midsize team offers cybersecurity.Read More -
42
- Undisclosed
- 50 - 249 employees
- London, United Kingdom
In London, United Kingdom, Ravelin Technology is an AI firm and cybersecurity company. The midsize firm was established in 2014. Their team specializes in Artificial Intelligence and cybersecurity.Read More -
43
- $10,000+
- 2 - 9 employees
- London, United Kingdom
Vuntie Limited, a cybersecurity company, was founded in 2019. Based in London, United Kingdom, their small team focuses on cybersecurity, custom software development, BI & big data consulting & SI, IoT development, and more.Read MoreIndustries
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44
- Undisclosed
- 250 - 999 employees
- London, United Kingdom
Online Business Systems is an IT strategy consulting company located in Winnipeg, Canada and Bloomington, Minnesota. The midsize team specializes in IT strategy consulting and business consulting. The firm was established in 1986.Read MoreIndustries
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45
- $5,000+
- 10 - 49 employees
- London, United Kingdom
Based in London, United Kingdom, MIK LIONS is a small cybersecurity company. Established in 2015, the team focuses on cybersecurity.Read MoreIndustries
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46
- $10,000+
- 10 - 49 employees
- London , United Kingdom
Turgensec, a cybersecurity company, is located in London , United Kingdom. They offer cybersecurity and were founded in 2019.Read MoreIndustries
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47
- $1,000+
- 2 - 9 employees
- London, United Kingdom
Cynance, a cybersecurity company, was founded in 2019. The small team focuses on cybersecurity. The firm is in London, United Kingdom.Read MoreIndustries
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48
- Undisclosed
- 2 - 9 employees
- London, United Kingdom
Read MoreNicolson Bray Ltd is a cybersecurity company. Located in London, United Kingdom, their small team provides cybersecurity. The company was founded in 2012.
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49
- Undisclosed
- 10 - 49 employees
- London, United Kingdom
Read MoreGoAllSecure is a cybersecurity company. The small London, United Kingdom-based agency was founded in 2022. Their team provides cybersecurity.
Industries
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50
- Undisclosed
- 250 - 999 employees
- London, United Kingdom
IronNet Cybersecurity is a cybersecurity company. They are headquartered in McLean, Virginia; Raleigh, North Carolina; London, United Kingdom and Singapore, Singapore and have a midsize team that focuses on cybersecurity and corporate training. The firm was launched in 2014.Read More -
51
- $5,000+
- 10 - 49 employees
- London, United Kingdom
Read MoreCybersecurity company Kloudwerk is in London, United Kingdom. The company offers cybersecurity and is small.The company was founded in 2021.
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52
- Undisclosed
- 10 - 49 employees
- City of London, United Kingdom
ISTARI is a cybersecurity company. They are in City of London, United Kingdom; New York, New York and , Singapore and have a small team. The company offers cybersecurity and IT managed services.Read More -
53
- Undisclosed
- 2 - 9 employees
- City of London, United Kingdom
Cybersecurity company Identiom Limited is based in City of London, United Kingdom. They offer cybersecurity and IT managed services and were launched in 2020.Read More -
54
- Undisclosed
- 50 - 249 employees
- City of London, United Kingdom
Read MoreCybersecurity company Crossword Cybersecurity Plc was launched in 2014. They are located in City of London, United Kingdom; Kraków, Poland and مسقط, Oman and have a midsize team. Crossword Cybersecurity Plc provides cybersecurity, IT managed services, and custom software development.
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55
- Undisclosed
- 10 - 49 employees
- London, United Kingdom
SURFSecurity is a cybersecurity company. Established in 2021, the company is in London, United Kingdom. The small team focuses on cybersecurity.Read More -
56
- Undisclosed
- 250 - 999 employees
- London, United Kingdom
Redscan is a midsize cloud consulting & SI company. They specialize in cloud consulting & SI, cybersecurity, and other IT consulting and SI and were established in 2015. The company is located in London, United Kingdom.Read MoreIndustries
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57
- Undisclosed
- 1,000 - 9,999 employees
- London, United Kingdom
Read MoreSecureworks is a large cybersecurity company. They offer cybersecurity and were established in 1999.
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58
- Undisclosed
- 50 - 249 employees
- London, United Kingdom
ThreatSpike Labs, a midsize cybersecurity company, is in London, United Kingdom. Established in 2011, the team specializes in cybersecurity.Read More -
59
- Undisclosed
- 10 - 49 employees
- London, United Kingdom
Darklabs is a cybersecurity company launched in 2016. The company specializes in cybersecurity and has a small team. The company is based in London, United Kingdom.Read More -
60
- Undisclosed
- 250 - 999 employees
- City of London, United Kingdom
Read MoreContino is a cloud consulting & SI and cybersecurity company established in 2014. The midsize City of London, United Kingdom-based team specializes in cloud consulting & SI and cybersecurity.
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