Top Cyber Security Companies in Belfast (27)
At Rapid7, our vision is to create a secure digital world for our customers, our industry, and our communities. We do this by harnessing our collective expertise and passion to challenge what’s possible and drive extraordinary impact. We’re building a dynamic and collaborative workplace where new ideas are welcome. Protecting 11,000+ customers against bad actors and threats means we’re continuing...
Rapid7's Top Stability & Growth Strengths
Profitability: Q2 2026 delivered positive GAAP operating income of $3.0M and non‑GAAP operating income of $28.9M, with management raising the 2026 non‑GAAP operating income outlook. This indicates margin improvement even as the top line softens.
Healthy Cash Flow: Free cash flow was $31.9M in Q2 2026 and management is targeting around $125–$135M for full‑year 2026. This ongoing cash generation underscores improved efficiency during a reset year.
Investor Backing & Capital Strength: Cash and short‑term investments increased to about $703M as of June 30, 2026, up from roughly $657M at year‑end 2025. This liquidity provides flexibility amid slower ARR and revenue trends.
Nisos is a human risk intelligence and managed investigations company that protects organizations and their people from human-driven and digital threats by operating as an extension of their security, intelligence, and legal teams. It leverages a team of expert analysts, specialized in open-source intelligence and adversary tradecraft, to provide actionable intelligence that addresses complex risks like executive threats, insider fraud,...
Nisos's Top Stability & Growth Strengths
Investor Backing & Capital Strength: Recent funding rounds, including a 2025 Series C following a 2022 Series B, are described as providing fuel for hiring and product build-out. These signals indicate solid investor support to sustain scaling through 2025–2026.
Product Line Growth: The launch of the Ascend platform in May 2025 and a subsequent Insider Threat Intelligence module in October 2025 point to active R&D and a maturing product suite. This move from services-led work toward a platform-plus-services model suggests expanding commercial pathways.
Strategic Partnerships: Participation in the World Economic Forum’s Cybercrime Atlas and a 2025 collaboration with Premier Sports Network reflect growing ecosystem reach and new entry points to buyers. Ongoing press activity and original research through mid‑2026 reinforce market visibility and demand generation.
Verizon is one of the world’s leading providers of technology and communications services, transforming the way we connect across the globe. We're a diverse network of people driven by our shared ambition to move the world forward - collectively building the network America relies on most. Here, we have the ability to learn and grow at the speed of technology,...
Verizon's Top Stability & Growth Strengths
Strong Market Position & Advantage: Verizon is positioned as a U.S. wireless leader by scale and enterprise reach, with repeated references to leadership by subscribers and differentiated enterprise/private 5G capabilities. Network reliability is also framed as a key advantage that supports premium positioning amid competition.
Market Expansion: The fiber footprint expands materially through the Frontier Communications acquisition, increasing broadband reach and strengthening the mobility-and-home convergence strategy. Fixed wireless access and broadband subscriber additions are described as ongoing growth vectors supporting a broader footprint.
Healthy Cash Flow: Cash generation is emphasized through guidance and commentary pointing to strong free cash flow that can fund spectrum, fiber, and 5G investments. Improved guidance and continued investment capacity are presented as resilience enablers even as competitive pressure rises.
ANGOKA is an IoT security company focused on protecting M2M communications for Smart Cities and Mobility. Headquartered in Belfast, with offices in London and The Hague, ANGOKA offers solutions that protect devices’ identities. With an increase of inherently insecure networks coming online with the boom of IoT, ANGOKA’s solutions safeguard critical machine-to-machine communication integrity and data provenance, creating trusted connections,...
We provide the most effective cybersecurity and compliance solutions to protect people on every channel including email, the web, the cloud, and social media.
Proofpoint's Top Stability & Growth Strengths
Strong Revenue Growth: Disclosures cite surpassing $2 billion in ARR in 2024 and reaching $2.45 billion by the end of 2025 with continued double-digit momentum. New customer additions and strong adoption of data security and collaboration offerings are described as contributing factors.
Strong Market Position & Advantage: Multiple analyst evaluations in 2024–2025 consistently name the company a Leader in core categories, and Gartner-referenced data cites No. 1 market share in Secure Email Gateway and Cloud Enterprise DLP. A large enterprise footprint, including a significant portion of the Fortune 100, further underscores competitive strength.
Market Expansion: Acquisitions such as Hornetsecurity and Acuvity are described as expanding reach into MSP/SMB channels, Europe, and AI security. New product introductions and a revamped partner program are credited with accelerating adoption across email, collaboration, and data protection.
Tek Experts is now a part of TeKnowledge. TeKnowledge—bringing together the expertise of Tek Experts, Elev8 Tek and Cytek Security—is at the forefront of digital transformation. We provide governments and enterprises around the globe with unparalleled enterprise technical managed services, advanced technical skilling, and cybersecurity services. Tek Experts remains a leading global provider of technical talent solutions and a trusted...
Hikvision is a world leading manufacturer and supplier of security products and solutions. Featuring an extensive and highly skilled R&D workforce, Hikvision manufactures a full suite of comprehensive products and solutions for a broad range of vertical markets. In addition to the security industry, Hikvision extends its reach to smart home tech, industrial automation, and automotive electronics industries to achieve...
Unlock the full potential of your business with digital solutions built for you and with you. Our industry experts get to know your business inside-out, exploring your processes, pain points and people, to build tailored technology across Cloud & IT Services, Cyber Security, CRM and ERP. With solutions designed around your operations, you get the freedom to be more productive...
Aztech IT Solutions is trusted by more than one hundred growing businesses across the UK to deliver professional, proactive IT support services. Aztech provides the IT support and consultancy services that enable organisations to operate more efficiently, safe in the knowledge that their IT systems are optimised and proactively managed. Your IT partner should work as hard to improve your...
ITC Secure is an advisory-led cyber security services company. We have a 25+ year track record of delivering business-critical services to over 300 blue-chip organisations - bringing together the best minds in security, a relentless focus on customer service and advanced technological expertise to help businesses succeed. With our integrated delivery model, proprietary platform and customer-first mindset, we work as...
Gen (NASDAQ: GEN) is a global company dedicated to powering Digital Freedom through its trusted Cyber Safety brands, Norton, Avast, LifeLock, Avira, AVG, ReputationDefender and CCleaner. There’s a new generation, and it’s not Gen X, Y, or Z. It’s Gen D: Generation Digital. Our family of consumer brands is rooted in providing safety for the first digital generations. Now, Gen empowers...
Gen's Top Stability & Growth Strengths
Strong Revenue Growth: Management reported higher revenue and bookings in Q2 FY2026 and raised full‑year revenue guidance, indicating accelerating top‑line momentum. Q3 guidance also points to continued year‑over‑year growth in the near term.
Healthy Cash Flow: Operating and free cash flow increased year to date alongside non‑GAAP earnings improvements. This cash generation supports reinvestment and provides cushion during integration.
Diversified Revenue Streams: Growth is coming from both the core Cyber Safety business and the expanding Trust‑Based Solutions offerings, including the MoneyLion contribution. The mix shows multiple engines driving bookings and revenue rather than a single product line.
Persistent Systems is a leading provider of digital transformation services, offering innovative solutions tailored to various industries worldwide. With a robust global presence, they deliver cutting-edge services in product engineering, digital strategy, and data analytics, helping businesses thrive in today's rapidly evolving landscape. From healthcare and financial services to retail and manufacturing, Persistent Systems empowers organizations across diverse sectors to...
Enea is a world-leading specialist in software for telecom and cybersecurity. The company’s cloud-native solutions connect, optimize, and secure services for mobile subscribers, enterprises, and the Internet of Things. More than 100 communication service providers and 4.5 billion people rely on Enea technologies every day. Enea has strengthened its product portfolio and global market position by integrating a number of...
At PwC our purpose is to build trust in society and solve important problems. We’re a network of firms in 155 countries with over 327,000 people who are committed to delivering quality in assurance, advisory and tax services. Find out more and tell us what matters to you by visiting us at www.pwc.com.
Vertical Structure is an independent cyber security consultancy with a "human-first" approach. We specialize in providing human-focused security and penetration testing services for web applications, cloud infrastructure and mobile applications.
An award winning, locally owned, IT Managed Security Services Provider (MSSP) working with SME/Enterprise customers across the UK, Ireland and internationally. Outsource solutions and services, covering from 'the desktop to the data centre' are all underpinned by our "Security First" approach and focus on improving the security, performance and productivity of every company we partner with. We also offer a suite...
Our mission is to eliminate the most complex cybersecurity challenge every organization faces: insider risk. We understand that people get hacked, make mistakes, and break the rules. To prevent these human-activated breaches, we have built the only Human Layer Security platform that defends against inbound and outbound threats. Using patented contextual machine learning we detect and prevent abnormal human behavior...
With 18+ years of experience in the Cyber Security and Compliance market, MetaCompliance provides an innovative solution for staff information security awareness and incident management automation. The MetaCompliance platform was created to meet customer needs for a single, comprehensive solution to manage the people risks surrounding Cyber Security, Data Protection and Compliance. The solution provides an easier approach to managing...
Alert Logic is the industry’s first SaaS-enabled managed detection and response (MDR) provider, delivering unrivaled security value. Since no level of investment prevents or blocks 100% of attacks, you need to continuously identify and address breaches or gaps before they cause real damage. With limited budget and expertise, this level of security can seem out of reach. Our purpose-built technology...
Siemens is a technology company focused on industry, infrastructure, mobility, and healthcare. Creating technologies for more resource-efficient factories and resilient supply chains to smarter buildings and grids, to cleaner, comfortable transportation and advanced healthcare, the company empowers customers to transform the industries that form the backbone of economies, transforming the everyday for billions of people. In fiscal 2020, which ended on...
Siemens's Top Stability & Growth Strengths
Strong Market Position & Advantage: Siemens holds leading positions across industrial automation and software, smart infrastructure, mobility, and healthcare technology (via Siemens Healthineers), with multiple segments ranked first or second and significant contract wins expanding backlog. This breadth provides competitive advantage across diverse high-growth end markets.
Healthy Cash Flow: The company reports strong free cash flow at the Group level in FY2024 and subsequent quarters, supporting investment, M&A, and a new multi‑year share buyback program. Robust cash conversion across industrial businesses underpins financial flexibility.
Resilient & Sustainable Growth: Comparable revenue increased in FY2024 and continued to rise in FY2025 quarters, while orders and book‑to‑bill above 1, a record order backlog, and confirmed FY2025 guidance provide visibility. Growth is supported by electrification, data‑center demand, rail investments, and ongoing portfolio actions.
