Top Cybersecurity Companies & Best Cybersecurity Firms in UK | 2025

Empowering healthcare organizations with reliable cybersecurity. In the ever-evolving world of healthcare cybersecurity, PeoplActive is your go-to partner for healthcare cybersecurity solutions. Our ISO 27001:2022 certification underscores our commitment to the highest standards of information security. With our in-depth expertise and dedicated focus on the healthcare sector, our solutions assure data privacy, regulatory compliance, and exceptional protection. Healthcare organizations rely on us for reliable and consistent security to safeguard their data and systems.     PeoplActive’s cybersecurity solutions are designed to be both reliable and user-friendly, empowering healthcare professionals to focus on their core mission without worrying about security threats. We provide peace of mind with solutions that are easy to implement and manage, ensuring the highest levels of protection for hospitals, MedTech companies, and medical device manufacturers. Partner with PeoplActive for a safer future.

CACI provides data, marketing, and IT solutions to various industries, including Integrated Marketing and Location Planning, and Technology and Network Services. They help clients improve sales, retain customers, and plan retail provision, while also offering big data analytics, systems integration, secure cloud, and IT networks to improve operational processes and reduce costs.

We offer a wide range of services to maintain the effectiveness and security of your company. Whether you are a start-up or an established business, we have everything you need because our portfolio is based on our current clients. We will assist you in putting security at the forefront of your business, as we do. Our clients have been receiving support services from Tamite IT Services Sussex in Haywards Heath since 2008. We are technology evangelists, so don't believe that because we have been in business for a while, we aren't progressive.

OneCollab was founded in 2019 with the specific goal of providing our clients with exceptional, unique, and customized IT and cyber security services. Our team is made up of highly qualified technical, consulting, and industry professionals who are all committed to fostering company expansion and helping our clients achieve their greatest potential. Our steadfast commitment to genuine collaboration is what really sets us apart. We go beyond simply carrying out tasks; we become your dependable partners, devoting effort to developing a deep comprehension of your company. In the areas of cyber security, IT support services, and technology design and implementation, we offer strategic and operational help to multinational organizations with solutions that are practical and precisely customized to meet your specific needs.

HewardMills offers international corporations top-notch Data Protection Officer (DPO) service. We assist organizations in adhering to: -GDPR -CCPA -Effect Evaluations of Data Protection The ePrivacy Rules -Laws pertaining to data protection and privacy, including cybersecurity guidelines and new technology-related regulations. -Data transfers across borders -Inspects -Medical Trials With a multidisciplinary team of data protection practitioners, attorneys, corporate governance, and cybersecurity specialists that possess extensive expertise of data protection and privacy, HewardMills is at the forefront of data regulation and ethics. In 70 countries, HewardMills functions as a reliable strategic partner in a variety of industries. London, Ireland, Berlin, Zurich, and San Francisco are the locations of the offices.

Timspark is at the forefront of software development, renowned for rapidly deploying skilled engineering talent. We specialize not just in staffing, but in curating and nurturing expert teams capable of addressing the diverse IT challenges of our clients. Our approach combines the agility and speed of mobilizing top-tier resources with a deep expertise in team composition, ensuring each project is met with a tailored, effective, and innovative solution. This unique blend of skills and services allows our clients to scale and innovate with unmatched efficiency and confidence.

As leaders in the technology industry, we specialize in Software & Mobile Application Development, IT Architecture, Security Architecture, Data Migration, Cloud Services, and Consulting. Our expertise spans across Web Portals and Mobile App Development (iOS, Android, and HTML5), as well as Enterprise Business Solutions such as ERP, CRM, Big Data, IoT, and Business Analytics Intelligence. Additionally, we offer a full suite of Digital Marketing Services, including Mobile Marketing, PPC, SEO, Video & Social Media Marketing, Web Traffic Management, Lead Capture, Sales Funnels & Conversions, and Analytics.

GAVS is focused on reducing resource usage by 40% and improving user experience by 10X. We accomplish this with our solution, which uses instrumentation, smart machines, and predictive analytics to help enterprises move toward a Zero Incident Enterprise TM. By offering a unified perspective on the state of IT operations, our Zero Incident Framework TM promotes quicker event correlation, noise reduction, predictive insights into potential failures, and automation to address events before they happen.

Since our founding in 2008, we have worked with companies across a range of sectors to increase sales, cultivate current leads, and acquire new ones.

The company offers services in various areas, including pre and post MVP, scale ups, digital transformation, new products, and innovation. They focus on product goals, coaching, financial support, and organizing a team of strong product, agile, and engineering experts. Post-MVP, they review the product's architecture, security practices, and tech stack, build a team of engineers, and provide flexibility and access to resources. They have successfully helped established companies innovate and build digital products, guiding them through the requirements and discovery process. However, maintenance and continuous support can be challenging, especially for those without technical expertise.

React, Node.js, PHP, UX & UI, and DevOps are among the areas of expertise for the highly skilled web and mobile development firm DKC Software. We have an impressive 15-year history of effectively serving a wide range of clients, from startups to major corporations. With more than 100 completed projects in a variety of industries, we have the honor of working with both B2B startups and industry stalwarts. We have been able to acquire significant investments and serve thousands of clients thanks to these relationships. Providing innovative solutions in the fields of finance, e-commerce, education, travel, and magazines is one of our core skills.

DevOps Engineering is a multinational software engineering company with a distinctly human approach to issue resolution. We collaborate with clients at any scale and on every platform, fuelled by our People First concept, we assist clients in releasing technological innovation. DevOps Engineering provides innovative enterprise software development for our clients.

ELEKS is a global provider of software engineering and technology consulting services. As a trusted partner, we guarantee engineering excellence, quality, and transparency at every step.   The company’s presence spans three continents, with over 2000 multi-skilled engineers and a track record of more than 1000 successful end-to-end projects.   For over 30 years, we have been developing custom software solutions that fuel business growth for our clients across industries, including logistics, finance, insurance, energy, retail, agriculture, healthcare, government, and more.  With ELEKS, businesses can create software solutions from scratch or use our pre-built delivery accelerators to get their software to the market faster. We stand up to the most complex technology and business challenges, employing a mix of pioneering and traditional methods to design and implement full-cycle products that fulfil your software vision. 

F10 Software Solutions is a UK-based digital marketing agency offering a range of services including app development, web development, AWS services, CMS development, and dedicated developer services. With over a decade of experience, the agency has a team of skilled professionals who are committed to delivering exceptional results. F10 Software Solutions can handle large-scale projects and ensure projects are delivered within set timelines and budgets. The agency is customer-focused, working closely with clients to understand their requirements and provide customized solutions. As a trusted partner, F10 Software Solutions is well-positioned to help businesses succeed in today's digital landscape.

Group TAKEY is an IT Company in Ahmedabad, India was established by a team of core software & Hardware professionals endeavoring to provide the best IT solutions and IT Services to the industry. The credit for the same goes to the organization's commitment to serving the industry in the best possible way by delivering value-added services to the clients. In tune with the organization's philosophy are its highly motivated employees who believe in giving their best in whatever project IT Solutions & Services undertake.

The way you do security testing for your company is being improved by Securityium. Having worked in IT security for more than ten years, we are aware of the intricate problems that businesses encounter, ranging from overseeing knowledgeable security teams and monitoring vulnerabilities to managing many compliance reports that adhere to industry standards. In the end, our solution saves you time and money in your security testing process by serving as a thin, intermediary layer between testing frameworks and execution, promoting efficiency, effectiveness, and organization. Our creative approach to security evaluations produces specialized, dependable, and effective solutions made to meet your particular requirements. We have the knowledge and experience necessary to help you confidently traverse the difficulties of today's digital environment.

With headquarters in London and offices in several major cities throughout the region, GoAllSecure is a reputable provider of cyber security services and solutions that operate globally. We provide comprehensive assurance and advisory consulting to governmental bodies and private sector organizations across various industry sectors in the EMEA, NA, and APAC regions. Our expertise is in conducting web application penetration testing, network penetration testing, as well as cloud, mobile, and API security assessments. We are dedicated to making sure that organizations have the Cyber Resilience to not only protect against today's most sophisticated attacks but also adhere to local, national, and international regulations.

VISTA InfoSec is a global Information Security Consulting firm with offices based in US, UK, Singapore and India. We have been in the industry for almost two decades (since 2004) serving clients in securing their IT Infrastructure and assisting them in their Compliance obligations. Our service offerings include Information Security Consultation, Compliance and Advisory Services. Whether your business is local or global, we can help you meet Regulatory Standards for virtually any market around the globe. For our industry-winning Compliance process and customer-centric approach, we hold extensive global accreditations and recognitions for our services. With a proven track record in Compliance and a strong focus on customer satisfaction, we are proud to be globally recognized for our expertise. Our accreditations include CREST Approval, Cert-In Empanelment, and Swift Empanelment, reflecting our unwavering commitment to excellence. These recognitions validate our dedication to delivering the highest standards in Information Security and Compliance services, ensuring our clients achieve their goals with confidence. We bring an unmatched combination of industry expertise, global experience, and collaboration that is exceptional in the industry. Our service offerings are not just limited to businesses, government entities, and organizations in the country but any businesses and institutes around the world. At VISTA InfoSec our focus is on providing services that go beyond mere Advisory services and providing practical solutions and ground-level support to help businesses achieve their Cyber Security goals.

Hello, we are Findigo, an in-house full-cycle software company. Without someone to do it for you, it's difficult to get things done, which is precisely why we're here. Imagine us as your architects, collaborators, and strategists, using business analysis, UX/UI design, and engineering to provide safe, compliant solutions. In our opinion, software ought to be a driving force behind change and have a significant influence by resolving actual business issues. It's similar to locating the last puzzle piece that completes the picture. Research-driven development and a UX-first design methodology serve as the compass for our team. These are the key components to producing goods that consumers adore and assisting our clients in reaching their goals on their own terms. The services that we offer are as follows: Team Extension: The smooth incorporation of our knowledgeable experts into your group. Code Security Audit: A thorough study that quickly identifies and fixes every issue. MVP Development: This service is automatically enhanced, so hold on to your hats. Discovery: Using strategic strategy and research to deliver unicorn potential. UX/UI Design: Creating an engaging, feature-rich user interface that engages your audience. Web, mobile, and API development, software product development, generative artificial intelligence, data analytics and automated reporting, payment integrations, data security and compliance, fraud detection and prevention, crypto, and NFT are among our areas of expertise. Our Technology Stack: Frontend: Angular | JavaScript | Vue.js | Next.js | Gatsby, Electron | Redux | Nuxt.js | React Backend: Java | Spring | Go | Rust | Solidity | Node.js | Nest | PostgreSQL | Redis | Microservices Mobile: Kotlin | Flutter | Swift | React Native DevOps: Azure, GCP, Docker, AWS, and Kubernetes

In 2011, CloudHost Limited was founded with the goal of providing small and midsize enterprises in the UK with improved IT support. CloudHost enables businesses of all sizes to create, implement, and manage a feature-rich IT environment supported by top-notch technology and an informed and committed support staff. With every solution we implement for our clients, not only in the UK but globally as well, we promise top-notch customer support. The newest Office 365 solutions, including as Exchange Online, Teams, OneDrive, and SharePoint, are available from CloudHost, a certified Microsoft Partner. In order to provide our clients with hardware and software solutions, we also collaborate with enterprise vendors like Fortinet, VMware, and HP.

People are the center of IT support at Sereno. In addition to offering technology insight and consulting to help your organization succeed, our people-centric strategy guarantees that we consistently provide flawless customer service. We are inspired by the ways that proactive, well-chosen IT guidance benefits both of us and enables us to forge a genuinely cohesive technological alliance.

As a rapidly expanding company, Elite Group is committed to helping its employees and clients realize their greatest potential. We provide technology, IT, and communications solutions that support businesses in working together and communicating safely, effectively, and financially.

ARO is a well-known enterprise performance partner that offers top-notch cloud technologies with unmatched support. ARO represents expertise in technology integration as a Platinum Partner with industry giants such as Dell, Gamma, SonicWall, NFON, Vodafone, 02, BT, Aruba, and Extreme, as well as a recognized Microsoft Solutions Partner. In order to help clients achieve operational excellence, its whole range of services includes Cloud Solutions, Collaboration, Specialist Data Center Services, and Sustainability.

One of the top suppliers of cloud hosting and managed IT services is SysGroup. The Group provides solutions that guarantee customers comprehend and take advantage of cutting-edge hosting capabilities and industry-leading technologies. By concentrating on a customer's strategic and operational needs, the SysGroup team helps them grow their core business, free up resources, and stay away from the complications and diversions that come with providing IT services.

BSI is a business improvement firm that helps companies transform best practice standards into outstanding behaviors.

G10X is a Singapore-based IT services and consulting company with a strong retail focus that operates all over the world. Fortune 2000 clients make up a sizable portion of G10X's clientele. We take great satisfaction in working with our clients to co-create solutions while incorporating academic rigor. G10X thrives on passionately taking charge, which guarantees a long-lasting collaboration and translates into our motto below.

Leading technology consulting firm Intelance offers solutions for supply chain automation, cybersecurity, and enterprise architecture. Our areas of expertise include cloud security, IT strategy, AI-driven logistics, and Cyber Essentials & ISO 27001 compliance. Our knowledgeable consultants assist companies in optimizing digital transformation initiatives, streamlining IT infrastructure, and lowering cybersecurity threats.

We at Cosonas create innovative solutions that are suited to your company's requirements. Our group is dedicated to using cutting-edge technology to improve growth, increase efficiency, and deliver a flawless experience.

We are a technology and innovation partner with headquarters in London that offers comprehensive assistance, from planning to execution.

The first multifaceted technology and consulting firm in Georgia, Noxtton primarily targets the global market. Noxtton's concentration is mostly on start-ups, governmental and non-governmental organizations, and business firms. Tech consulting, Cyber Security Services, Software Development, Website Development and Design, Digital Branding, E-commerce, Mobile and Web Application Development, Big Data, Data Driven Marketing, ERP & CRM System Development and Integrations, AI Research and BOT Development, Blockchain, and Digital Marketing are just a few of the many digital services that Noxtton offers. Noxtton specializes in developing clever, fashionable, and astute organizational and digital strategies to provide stakeholders with outstanding user experiences, high sales conversion rates, and a powerful online presence. The team at Noxtton spends a lot of time learning about the main differentiators, KPIs, and success criteria of their clients. They also develop clever digital strategies to increase their market share in the digital realm.

Greetings from NAWLABS, your reliable source for all-inclusive Salesforce solutions. We enable companies to fully utilize Salesforce Sales Cloud, Service Cloud, CPQ, and other features by specializing in Salesforce implementation, customization, training, and consulting. We use professional business automation solutions to optimize your processes, from development to integration and cloud deployment. Use NAWLABS to advance your Salesforce journey.

Your Microsoft cloud partner, Compete 366 We are a group of expert Microsoft technical consultants and a Microsoft Gold Partner: We provide strategy, guidance, and training along with our Microsoft experience. We don't bind you to pricey support or consulting agreements. We simplify relocation with the least amount of trouble and disturbance. We provide you with the best option for your company and budget, free of unnecessary extras. We are available to assist. When you need us most.

So-Creative is an award winning web design and development agency based in London. With a reputation for redefining digital experiences, they craft bespoke websites and cutting-edge software solutions that captivate audiences and deliver results. Their talented team combines creativity, collaboration, and advanced technology to help businesses develop memorable brands, generate leads, and achieve lasting success online. By offering streamlined, cost-effective processes, So-Creative is the trusted partner for businesses seeking to transform their digital presence and unlock growth through innovative design and technology.

Teceze is a managed IT services provider that offers a wide range of IT services including managed IT services, cybersecurity, and cloud solutions. They serve various industries including healthcare, finance, and education.

Nous sommes une équipe dévouée composée de chefs de produits passionnés, de développeurs, de designers, d'ingénieurs et d'experts en marketing qui 

IT support, cloud telephony, contact center, business connection, cybersecurity, systems integration, unified communications, and disaster recovery capabilities are just a few of the services offered by TWC IT Solutions, which offers industry-leading IT and communication solutions. With an NPS of 90, more than 3,000 clients trust TWC, and it is a preferred partner of Samsung Electronics, a premium partner of Cisco Systems Inc., and a gold partner of Microsoft. Although TWC has its headquarters in Hertfordshire, UK, the firm also has operations in the US (New Jersey) and Asia (Hong Kong). IMPORTANT CLIENTS Hasbro Investments by Octopus Investment Management in Lancaster OneGlobal Manage Hiring Caspian: one Hunting Peel

A local need for a jargon-free IT support service that helped businesses comprehend how to adopt new technology led to the founding of Systemagic in 1999. Systemagic offers connectivity, cloud solutions, and IT support to companies in Wiltshire, the South West, and beyond! We take pride in our people-focused approach, and as a sign of our dedication to reliable customer support and high-quality service, all of our services are available on rolling 30-day contract periods. We at Systemagic are honored to still have clients that came to us in 1999 on this foundation. We are aware of how important technology is to your company and its employees. After taking the time to comprehend your needs, we offer a targeted IT support solution. Contact our welcoming staff right now to find out how we can help you revolutionize your company.

By providing DevOps as a Service, Cloud Migration, and Platform Services, in addition to Microservices, APIs, and development tools like Java and Python, BridgeApps is a Deep Tech firm that facilitates digital adoption. Blockchain, artificial intelligence, and bots on top of solutions that integrate with various enterprise backend systems. To find out how we can help you more effectively, visit us at bridgeapps.co.uk or send us an email at info@bridgeapps.co.uk.

Clear Thinking provides organizations around the UK with industry-leading, secure, and compliant IT solutions. We have created a market-leading framework that offers value-added services, cyber security, fully managed IT support, and compliance. Our services are appropriate for sectors including insurance, financial services, pharmaceuticals, and commercial real estate that must adhere to stringent requirements. Nonetheless, we can help businesses in any sector that see the significance of IT. Additional services and specialties include: IT Consulting Hosting in the Cloud VoIP and other telephone solutions, as well as managed internet solutions GDPR Advice IT Project Work Complimentary IT Support to internal IT teams Linux / Unix Support Azure Specialists

We are the preferred option for assembling IT teams for Fortune 500 businesses and the most innovative startups worldwide. Our committed staff makes sure your project receives the consideration it needs so you may continue to concentrate on your main business.

a1qa is a provider of quality assurance and software testing services, specializing in ensuring the error-free operation of various software types. From prepackaged applications to custom-built solutions deployed in any environment, a1qa supports projects across all Agile frameworks, including SAFe.  For over 20 years, a1qa has been helping businesses successfully deliver mission-critical projects. Their services are designed to enhance software quality, optimize QA processes, ensure compliance with industry standards, complete end-to-end digital transformations, and drive organizational growth.  a1qa serves a wide range of industries, including telecommunications, IT, eCommerce, digital health, finance, media, energy, and more. Through their Centers of Excellence and R&D labs, a1qa develops solutions, featuring AI-driven technologies, that accelerate project delivery without compromising on quality.  With nearly 1,000 skilled QA professionals, a1qa invests heavily in continuous learning through hands-on training courses and technical seminars for both QA engineers and managers conducted in its internal academy. This commitment ensures that their specialists remain equipped with the latest knowledge and cutting-edge tools to meet evolving industry demands.  Custom-built QA teams are swiftly assembled and augmented to support organizations at any project juncture, address skill deficiencies, and navigate growing testing demands. Each project presupposes specialized training, guaranteeing uninterrupted workflows in case of any personnel transitions.  a1qa also upholds stringent quality and security standards, as evidenced by their ISO 9001 and ISO/IEC 27001 certifications. These measures reflect their dedication to exceeding client expectations while safeguarding sensitive data.  By partnering with a1qa, businesses can unlock new levels of software reliability, expedite t2m, diminish expenses, and curtail risk factors, leveraging QA as a strategic advantage in achieving their goals. 

Node4 offers cutting-edge, cloud-based solutions that enable UK companies to do more. Node4 leverages its extensive array of managed public and private cloud, security, and collaboration services, as well as cloud enablers like colocation and connectivity, to deliver end-to-end hybrid solutions. Businesses can be supported at any stage of their cloud journeys with the help of transformation services and modular solutions. Node4's teams are dedicated to surpassing client expectations by fusing technological know-how, creativity, and Exceptional Service as a Standard to satisfy the demands of companies across all industries. SLAs of 0%.

We collaborate with our clients to guarantee the dependability and security of their IT systems. Utilizing the most recent technological developments, we can ensure that their systems operate at their best while concentrating on cost reduction and business effectiveness. Our goal as a technology partner is to change our clients' IT from functional to transformative, where it serves as a key engine for creativity, effectiveness, and agility. We are the go-to partner for your company if you need time and money savings, as well as help and guidance on all things IT.

Both completely managed and unmanaged technology services and specialists are available from Zepto Systems. Technical innovation, web development, mobile app development, software quality assurance, customer support, server infrastructure, and cyber security are all included in the services offered. Additionally, they have contributed to the creation, deployment, and maintenance of online retail, CRM, ERP, and CMS applications. With five offices throughout the globe and sizable technology development and delivery teams catered to client requirements, they are able to optimize delivery while drastically reducing and controlling costs by 60%. Complete management consultancy, agency/project delivery, and remote/virtual-employees/resources, where you can use ours or apply your own management, are among their three flexible delivery options.

Stripe OLT is a trusted provider of managed IT services and cyber security solutions. With over 20 years of experience, we deliver practical, scalable IT support and security strategies tailored to the needs of UK businesses. Our focus is on keeping organisations running smoothly and securely in a fast-changing digital world, offering everything from proactive IT support to advanced cyber security solutions. Trusted by organisations large and small, we’re proud to be a partner businesses can rely on.

Teceze enables sustainable growth by delivering customized value-driven solutions with a global reach. Our agile approach and commercial flexibility help businesses of all sizes navigate change and scale confidently in the digital age. We specialize in modern Workplace solutions that help enterprises scale from local to global success. Our services including Managed IT, Cybersecurity, Field Support Operations, and Global Sourcing—harness advanced technology to optimize costs, increase productivity, and drive growth.

Imagine working with an IT supplier who is fully committed to you and your team, offering transformative IT services that will improve your team and business. Learn how our distinct approach to IT services makes a difference. We will steer you away from battling fires and temporary difficulties and provide you with tangible, understandable, and efficient IT solutions to propel your development!

PixelCrayons is an award-winning digital consulting and engineering firm that offers end-to-end software solutions to enterprises, ISVs, digital agencies, and startups. Founded in 2004, PixelCrayons has serviced over 5400 customers from 38+ countries, with a 97%+ client retention rate. Based in India, PixelCrayons is highly acknowledged for its agile/DevOps development process, SLA-driven approach, and on-time project delivery. Some of the services that PixelCrayons provides are: •  Software Engineering     Consulting     Web development     Mobile development     Custom software development     Software product development     SaaS product development     Website development     MVP development     Maintenance and migration     Modernization     Quality assurance and testing     DevOps •  Digital Marketing     SEO     PPC     Social media marketing     Content marketing     Email marketing     Online reputation management     Conversion rate optimization •  Digital Transformation      Consulting     Cloud Services     Machine Learning     Workflow Automation     Chatbot Development     Data Analytics & Insights     Blockchain Development     Robotics Process Automation (RPA) •  eCommerce     Consulting     Development     Implementation     Magento Development     B2B & B2C Portal Development     Migration     Maintenance & Management •  Hire Dedicated Teams     Backend     Frontend     Digital Marketing     eCommerce & CMS     Mobile         DevOps     QA & Testing     Full Stack & Frameworks Industries that PixelCrayons serves are: •  Fintech •  Education and eLearning •  Retail and eCommerce •  Healthcare •  Media and Entertainment