Best London Cybersecurity Firm Rankings

75 Companies - Rankings updated: August 25, 2026

DesignRush evaluates each agency using expert assessment and client feedback to inform your choices. Some featured agencies have paid placements.

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  • Computools

    Unlock Tomorrow

    Unlock Tomorrow

    Computools covers the full cybersecurity stack from penetration testing and Zero Trust network security to industrial ICS/OT protection and DevSecOps integration. With multi-certified engineers, it serves fintech, healthcare, and manufacturing companies seeking compliant and hands-on threat defense...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Development
    • Cloud Consulting
    • AI Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    250 - 499
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    25 Projects Listed
    View Profile
    4.9 4.9 (14)

  • Digis

    Certified Experts, Patented Excellence

    Certified Experts, Patented Excellence

    Digis integrates security throughout the SDLC, combining SAST, DAST, penetration testing, and AI-powered threat modeling under one team. With clients like HubSpot and BlaBlaCar, it offers expertise in fintech, healthcare, and eCommerce companies that want security built in, not bolted on...

    Top Services:

    • Staff Augmentation
    • Web Design
    • Web Development
    • Mobile App Development
    • IT Services
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $39/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    22 Projects Listed
    View Profile
    4.9 4.9 (28)
    3.0 3.0 (2)

  • epicX

    Scale With Tech Outsourcing & Offshore Development

    Scale With Tech Outsourcing & Offshore Development

    epicX is the tech outsourcing partner for startups, matching you with top 5% remote developers in 48 hoursfast, vetted, and built for scale...

    Top Services:

    • Staff Augmentation
    • Software Development
    • Mobile App Development
    • AI Development
    • DevOps Consulting
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    5 Projects Listed
    View Profile
    4.7 4.7 (4)
    5.0 5.0 (4)

  • Cyberdef Ltd

    Beyond Cybersecurity

    Beyond Cybersecurity

    CyberDef is a specialist certification body that goes beyond traditional cybersecurityoffering rigorous, independent audits to help organizations meet the highest standards in digital risk, compliance, and resilience...

    Top Services:

    • Cybersecurity
    • IT Compliance Solution
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $35/hr
    Portfolios Count
    1 Project Listed
    View Profile

  • Azilen Technologies

    An Enterprise AI Development Company

    An Enterprise AI Development Company

    Azilen Technologies is a prominent enterprise AI development company that takes pride in delivering exceptional AI, Data, and HRTech solutions to organizations seeking digital transformation...

    Top Services:

    • AI Development
    • Software Development
    • IT Services
    • IoT
    • Cloud Consulting
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    250 - 499
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    16 Projects Listed
    View Profile

  • 1st IT

    Making Technology Simple

    Making Technology Simple

    1st-IT is a London-based IT support and managed services provider established in 2000. We help SMBs and charities across London with IT support, cybersecurity, cloud services, and Cyber Essentials certification. With over 25 years of experience, we deliver fast, reliable, and cost-effective technology...

    Top Services:

    • Managed Services
    • IT Compliance Solution
    • IT Services
    • Cybersecurity
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    5.0 5.0 (4)

  • EFutures

    Bespoke Software Solutions

    Bespoke Software Solutions

    EFutures is a award winning software product engineering company. We have delivered bespoke software solutions to clients globally for the past 25 years. More recently we have added AI driven innovations to our service offerings empowering business to propel forward...

    Top Services:

    • AI Development
    • Software Development
    • Mobile App Development
    • Cloud Consulting
    • Cybersecurity
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $30/hr
    View Profile
    4.3 4.3 (104)

  • Acropolis Infotech

    Expanding Possibilities

    Expanding Possibilities

    An Award-Winning App Development Company | Leveraging Latest/Trending Technologies | Serving Across Globe...

    Top Services:

    • AI Development
    • VR/AR
    • Software Development
    • Mobile App Development
    • Cybersecurity
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    250 - 499
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile

  • Mindrops

    Web and Mobile Apps Development Company

    Web and Mobile Apps Development Company

    Mindrops is an AI-driven digital technology company delivering future-ready solutions. We build intelligent websites, smart eCommerce platforms, mobile apps, and custom software-scalable, secure, and user-friendly. Our AI expertise drives automation and business growth...

    Top Services:

    • Web Development
    • IT Services
    • AI Development
    • Software Development
    • Mobile App Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    20 Projects Listed
    View Profile
    4.9 4.9 (26)
    4.9 4.9 (119)

  • Efforts Solutions IT

    We make IT happen, so you don't have to.

    We make IT happen, so you don't have to.

    Efforts Solutions has been committed to IT Outsourcing for over a decade. We have a global reach with offices in UAE, UK, US, India, Kuwait, and Qatar. Our specialized services include IT, Security, Digital Marketing, Web, and Mobile development solutions. Our team has extensive experience in tackling complex...

    Top Services:

    • Web Development
    • Cybersecurity
    • Web Design
    • IT Services
    • Digital Marketing
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    4.7 4.7 (4)
    5.0 5.0 (51)

  • Unicloud

    Transform your Cloud Solutions with Unicloud.

    Transform your Cloud Solutions with Unicloud.

    Unicloud is one of the fastest-growing cloud & AI consulting companies. We strive to help our customers maximize returns on their cloud investments. We provide platform and expertise across the cloud lifecycle, starting with assessment, migrations, deployment, optimization, and SRE. In the last few years, we...

    Top Services:

    • DevOps Consulting
    • Cloud Consulting
    • IT Services
    • AI Development
    • Cybersecurity
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    View Profile
    4.6 4.6 (3)

  • Perimattic

    Your Digital Partner for Project Success.

    Your Digital Partner for Project Success.

    Perimattic is a technology partner specializing in AI development, software development, cloud solutions, DevOps, MLOps, and enterprise technology services. The company helps startups, growing businesses, and enterprises build secure, scalable, and high-performance digital solutions...

    Top Services:

    • AI Development
    • DevOps Consulting
    • Cloud Consulting
    • Software Testing
    • Software Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    View Profile
    4.3 4.3 (1)

  • Code Wrap Solutions

    Matching Technology To Business Needs

    Matching Technology To Business Needs

    At Code Wrap Solutions, we don't just develop software we create solutions that empower your business. Whether you're launching a new product, enhancing an existing system, or looking for reliable development support, we're here to help you succeed...

    Top Services:

    • Software Development
    • IT Services
    • Cybersecurity
    • Blockchain
    • Cloud Consulting
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    5.0 5.0 (2)

  • GSS Tech Solutions

    Digital Solutions Provider.

    Digital Solutions Provider.

    At GSS Tech Solutions, were redefining IT services with a commitment to excellence, reliability, and innovation. Each project reflects our dedication to quality, timeliness, and consistent performance. By continuously evolving our technology and enhancing client value, our passionate team thrives on embracing...

    Top Services:

    • Web Development
    • eCommerce Development
    • Digital Marketing
    • SEO
    • Software Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile
    5.0 5.0 (4)

  • SYSTEM ADMINS PRO

    Cloud computing is our future

    Cloud computing is our future

    We design, implement and maintain infrastructures using cloud providers: Microsoft Azure, Amazon, Google Cloud...

    Top Services:

    • IT Services
    • Big Data Analytics
    • Cloud Consulting
    • Cybersecurity
    • Managed Services
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    Under $1,000
    View Profile

  • Testhouse

    A Software Quality Assurance, Testing & DevOps Company

    A Software Quality Assurance, Testing & DevOps Company

    Established in 2000, Testhouse is a global, independent, technology agnostic Software Testing and Quality Assurance company based out of London, UK with operations in the Middle East, USA, Australia, New Zealand and India...

    Top Services:

    • Cybersecurity
    • IT Services
    • Managed Services
    • Software Testing
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    250 - 499
    Average Hourly Rate
    $25/hr
    View Profile
    4.6 4.6 (7)

  • Cygnet Digital

    Superb IT Services.

    Superb IT Services.

    With Cygnet.One, our goal is to seamlessly integrate our offerings empowering organizations to tackle challenges with tech-enabled and data-driven solutions facilitating business process digital transformation. This is achieved through our digital transformation framework, Cygnet Cosmos...

    Top Services:

    • Software Development
    • Mobile App Development
    • Cybersecurity
    • eCommerce Development
    • IT Services
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    3 Projects Listed
    View Profile

  • Cybadot Technologies

    Innovating Tomorrow with Intelligent Solutions

    Innovating Tomorrow with Intelligent Solutions

    Cybadot Technologies specializes in cutting-edge AI development, delivering innovative solutions to transform businesses and enhance operational efficiency. Our team of experts excels in creating intelligent systems tailored to meet the unique needs of our clients, ensuring exceptional performance and...

    Top Services:

    • AI Development
    • Mobile App Development
    • Cybersecurity
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    View Profile

  • Golden Owl Solutions

    A One-Stop Devshop With a Wide Range of It Services and Solutions to Clients Worldwide.

    A One-Stop Devshop With a Wide Range of It Services and Solutions to Clients Worldwide.

    Golden Owl Solutions is a top software development company, providing customized digital solutions for various industries. We focus on meeting specific business needs with precision and efficiency...

    Top Services:

    • Cybersecurity
    • IT Services
    • AI Development
    • Mobile App Development
    • Software Testing
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $20/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
    View Profile
    4.3 4.3 (1)

  • Next Generation Business Solutions

    TECHNOLOGY | INNOVATION | INSPIRATION

    TECHNOLOGY | INNOVATION | INSPIRATION

    NGBS assists companies to scale up, boost their development teams or building their ideas from scratch by providing top talent offshore/onshore software development resources. Whether your development is open ended or fixed term, we can build the team you need...

    Top Services:

    • Software Development
    • Mobile App Development
    • Web Design
    • Web Development
    • Cybersecurity
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
    Portfolios Count
    1 Project Listed
    View Profile

  • Cyberonics Limited

    Transforming Ideas into Powerful Digital Solutions

    Transforming Ideas into Powerful Digital Solutions

    Cyberonics Limited is a London-based software development company delivering custom software, AI solutions, cloud engineering, and digital transformation services to businesses across the UK...

    Top Services:

    • IT Services
    • AI Development
    • Software Development
    • Cybersecurity
    • Big Data Analytics
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $15/hr
    Minimal Budget
    Under $1,000
    View Profile
    5.0 5.0 (1)

  • Qualimatrix Technologies Pvt Ltd

    QualiMatrix Technologies: Always believe in Quality. We are ISO certified - 9001, 27001

    QualiMatrix Technologies: Always believe in Quality. We are ISO certified - 9001, 27001

    One of the top Cyber Security providers, Web Development Services, App Development Services, UI/UX Services, and Software Testing Services...

    Top Services:

    • Branding
    • Web Design
    • Web Development
    • IoT
    • Software Testing
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $13/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
    View Profile
    4.7 4.7 (4)
    5.0 5.0 (29)

  • Emrys - Technology and Consulting

    Innovate, Integrate, Inspire

    Innovate, Integrate, Inspire

    Emrys provides advanced technology solutions and consulting services to drive innovation and growth for businesses...

    Top Services:

    • Web Design
    • Web Development
    • Mobile App Development
    • Software Development
    • CRM Consulting
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $1/hr
    View Profile

  • UDEV HUB

    Your Digital Partner

    Your Digital Partner

    UDEV HUB provides cutting-edge software development and IT services to help businesses achieve their digital goals...

    Top Services:

    • Cybersecurity
    • Software Development
    • AI Development
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $1/hr
    View Profile

  • Scalexa

    Scaling Insights

    Scaling Insights

    Scalexa specializes in data analytics and AI solutions, providing businesses with actionable insights and advanced analytics...

    Top Services:

    • Big Data Analytics
    • Cloud Consulting
    • Cybersecurity
    • DevOps Consulting
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $1/hr
    View Profile

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