Top Security Companies in London (164)

Strong Revenue Growth: Recent results show accelerating top-line momentum, with FY2025 up 28% and Q2 2026 revenue up 36% year over year after 32% in Q1. Management also raised 2026 revenue guidance to $4.45B–$4.47B, indicating confidence in continued expansion.

Healthy Cash Flow: Cash generation is substantial, including Q2 2026 operating cash flow of $316M and free cash flow of $279M with about a 25% free-cash-flow margin. The company also reported roughly $5.0B in cash, cash equivalents and marketable securities as of June 30, 2026.

Customer Loyalty & Retention: Expansion within the installed base is a key driver, with about 75% of the 2025 revenue increase coming from existing customers and rising multi‑product adoption. Larger accounts are also expanding, as $100K+ ARR customers grew roughly 23% year over year to ~4,720 in Q2 2026.

Strong Revenue Growth: Revenue is described as having exceeded 40% year over year in 2022 and 273% growth over the Deloitte Fast 500 measurement period. Recent disclosures cite well over $100M in ARR and reporting of more than $100M in annual revenue.

Market Expansion: Customer footprint is reported at 3,500+ organizations across 150+ countries, with earlier periods adding 600+ customers and a London office opened to support rapid international growth. Partnerships and channel integrations are noted as expanding reach to multinational programs.

Product Line Growth: The platform has broadened through AI-powered launches (assistants, analytics, plan builders) and the acquisition of Pyrra to add social/digital threat intelligence. Continued investment in 2026, including new leadership roles focused on AI, underscores ongoing product expansion.

Strategic Partnerships: Samsung and Hiya extended their relationship through 2028, and Hiya highlights deep integrations with major operators and OEMs. Recent launches with Vodafone (UK and Ireland), Bouygues Telecom (France), DNA Finland, Telenor Sweden, Deutsche Telekom and O2 Telefónica (Germany) reinforce embedded distribution at device and network level.

Market Expansion: Hiya reports coverage in 40+ countries with network reach growing from 200M+ in 2021 to 500M–550M+ people, alongside analysis of 28B+ calls per month. Ongoing European rollouts in 2025–2026 indicate continued geographic scaling and platform utilization.

Product Line Growth: The company has broadened beyond caller ID/spam blocking into enterprise SaaS and branded calling, introducing offerings such as Hiya AI Phone and Caller Reputation. The acquisition of Loccus.ai for deepfake voice detection further expands its voice‑security portfolio.

Strong Revenue Growth: Enterprise ARR from large customers is described as having accelerated in 2025, reinforced by multi‑year inclusion on the Inc. 5000 list that highlights sustained revenue expansion.

Product Line Growth: The platform broadened with new AI and agent‑driven GRC capabilities across third‑party risk, enterprise risk, AI governance, and business continuity, indicating a wider addressable product footprint.

Cost & Operational Efficiency: Operations are portrayed as prioritizing efficiency and market capture over aggressive headcount expansion, reflecting a disciplined scaling approach.

Resilient & Sustainable Growth: Revenue and ARR continued to rise, with ARR surpassing $300M by 2025 and revenue increasing in 2024. Feedback suggests growth has moderated from earlier hypergrowth into a steadier, efficiency‑focused trajectory while the customer base expanded to 4,500+.

Product Line Growth: Snyk Code reached $100M in ARR and newer offerings such as DAST and AI‑focused products (e.g., Evo) showed strong momentum. These developments indicate the platform is extending beyond its original core into additional security categories.

Market Expansion: Enterprise adoption intensified, with that segment driving a large share of new additions and AI security opening fresh routes to demand. Customer counts grew materially from 2024 into 2025, signaling broader market reach.

Strong Revenue Growth: ARR has surpassed $430 million with accelerated growth, and expectations of 22–23% revenue increases in 2026–27 reinforce ongoing momentum. This scale is bolstered by tens of thousands of paying customers and broad enterprise adoption, including a large share of Fortune 100 companies.

Innovation-Driven Growth: New AI-centric offerings (e.g., Sonar Vortex and a SonarQube Remediation Agent) and the 2026 acquisition of Gitar extend the platform into AI-native code verification and review. This product cadence signals active investment to capture emerging developer and DevSecOps use cases.

Investor Backing & Capital Strength: A $412 million financing at a $4.7 billion valuation led by Advent International and General Catalyst, with Insight Partners and Permira, provides resources to scale globally. Stated plans to pursue $1 billion in revenue underline sustained access to growth capital.

Strong Revenue Growth: Recent results show revenue rising from $1.62B in FY2023 to $2.17B in FY2024, $2.67B in FY2025, and about $3.35B in FY2026, with Q4 FY2026 up 25% year over year. This trajectory, alongside mid‑20% ARR growth, indicates continued expansion rather than a stall.

Healthy Cash Flow: Cash generation is growing, with free cash flow rising to about $779M in FY2026 and a free‑cash‑flow margin near 23%. Non‑GAAP operating metrics, including an ~80% gross margin, underscore operating leverage.

Strong Market Position & Advantage: Industry evaluations list the company as a Leader in the 2026 Gartner Magic Quadrants for both SSE and SASE, with five consecutive years of SSE leadership. Expanding large‑enterprise adoption and thousands of customers support a durable position in its core zero trust/SSE markets.

Strong Revenue Growth: Revenue grew 26% year over year in FY2024. ARR increased 30% in 2023 after crossing the $100M threshold in 2022.

Profitability: Operations remained profitable and cash‑flow positive in FY2024 while the organization expanded to just under 600 employees.

Investor Backing & Capital Strength: A July 2024 majority investment led by Vista Equity Partners (with TCV and KKR) valued the company at about $1.2B. This reflects substantial external capital support for continued expansion.

Strong Revenue Growth: Revenue is described as sizable and growing rapidly, with independent reporting and credit analyses pointing to continued double‑digit expansion. ARR and ACV are characterized as increasing consistently since 2022.

Customer Loyalty & Retention: Retention is depicted as very high, with consistent expansion within existing accounts that supports sustained recurring revenue growth. Commentary highlights strong share‑of‑wallet gains and durable renewals across healthcare customers.

Product Line Growth: The portfolio has broadened through repeated acquisitions (e.g., SecureLink, Verosint) and new capabilities such as passwordless authentication and agentic identity management. These moves signal active investment to expand addressable use cases and deepen the platform.

Strong Revenue Growth: Recent results show revenue rising in the mid-30% year over year, with acceleration from Q1 to Q2 2026 and raised full-year 2026 guidance. Contracted demand indicators such as Current RPO also increased in the mid-30% range, reinforcing momentum.

Diversified Customer Base: Evidence points to a broad customer mix, from hundreds of thousands of paying customers to thousands of large enterprises, including a significant share of the Fortune 500. Growth in $100K+ and $1M+ spend cohorts underscores continued upmarket penetration.

Healthy Cash Flow: Observations include positive and increasing free cash flow alongside strong operating cash generation in recent periods. These trends suggest the business is funding growth while improving cash efficiency.

Strong Market Position & Advantage: Press and industry coverage frequently cite Pindrop among leading firms in voice security and audio deepfake detection. Reporting notes use by eight of the ten largest U.S. banks, reinforcing an entrenched position in regulated enterprises.

Strategic Partnerships: Strategic integrations and endorsements—such as Amazon Connect pointing customers to Pindrop and native integrations with Five9 and NICE CXone—embed the company within major contact-center stacks. These relationships ease migrations and broaden distribution channels.

Strong Revenue Growth: The company reported surpassing $100M in annual recurring revenue in April 2025, indicating material scale and ongoing adoption. Case studies citing millions of authenticated calls and large enrollments further reflect expanding usage.

Strong Market Position & Advantage: Recognition as a Leader in Gartner’s 2025 and 2026 Backup and Data Protection Platforms Magic Quadrants, along with IDC’s 2025 Cyber Recovery Leader positioning, indicates durable competitive standing. Consecutive cycle confirmations and independent listings corroborate execution and vision at scale.

Investor Backing & Capital Strength: Multiple venture rounds culminating in a 2021 raise at a valuation above $2B underscore the capacity to finance expansion. This late-stage capital base aligns with continued product releases and partner activity highlighted into 2025–2026.

Strategic Partnerships: A strategic relationship with Microsoft (March 11, 2025) and successive expansions across Azure, Entra ID/Active Directory, and Power Platform show deepening ecosystem leverage. These moves suggest increasing enterprise footprint in Microsoft-aligned environments.

Strong Revenue Growth: Strong multi-year expansion is described, including repeated year-over-year tripling and large multi-year revenue increases. Forward-looking expectations for continued high growth in the subsequent year reinforce the trajectory.

Investor Backing & Capital Strength: Large recent funding rounds and sizable cumulative capital raised are highlighted as resources to support expansion, R&D, and partnerships. A reported step-up in valuation is also presented as corroborating financial momentum.

Strong Brand Reputation: Frequent mentions of prominent lists, awards, and independent testing results point to elevated visibility and credibility in its target segment. High product ratings and category placements are also cited as signals of strong perceived standing.

Strong Market Position & Advantage: Johnson Controls is characterized as a global leader by share and scale in building automation and integrated commercial building technologies, supported by a broad end-to-end portfolio across controls, HVAC, fire, security, and services.

Strong Revenue Growth: Recent performance indicates accelerating growth signals, including mid-single-digit organic sales growth alongside exceptional order momentum and a record backlog that supports forward revenue conversion.

Profitability: Earnings power appears to be improving, with adjusted EPS growth and margin expansion in recent quarters, reinforced by management raising full-year EPS guidance.