AI GTM STUDIO

UK cybersecurity: companies to watch

24 UK companies in order of what public sources say they did between 1 Aug 2026 and 29 Oct 2026: funding, hires, launches, jobs, filings and mentions. Open any company to see the evidence and where it came from.

Updated 2 November 2026, and every month. Get this list's monthly update by email. How the lists work, including what counts and what doesn't. Each company's score is out of 100.

Top 10 1 to 10

  1. 1
    Risk Ledgerriskledger.comScore 36

    Risk Ledger runs a platform for managing the cybersecurity of supply chains, which lets organisations assess and monitor the security of their suppliers. It sells to businesses, including those in regulated sectors, and has won public sector contracts.

    • Named in 14 of 60 AI-assistant answers
    • 3 UK roles posted since 1 Aug, about 6 per 100 staff (4 in all)
    • 2 public contracts awarded, largest £228k

    What it may be in the market for

    Our reading of the evidence above, not something the company has said.

    1. May need US event, venue and field marketing services, as it hires its first dedicated US field marketing manager to run executive dinners, roundtables and trade shows.moderateMarketing and brandThe advert calls the US a major growth market and gives the new hire freedom to choose partners, venues and vendors. That suggests spend on event suppliers and programmes in the US.Who would buy it: Field Marketing & Community LeadWhat could help: Event agencies, venue and catering suppliers, event registration and attendance tools, trade show and sponsorship packages, co-marketing partnershipsBased on: advert for Field Marketing Manager, US (Chicago, Hybrid), posted 9 Sep 2026; role posted: Field Marketing Manager, US (Chicago, Hybrid), 9 Sep 2026
    2. May need security monitoring and detection tooling, as it hires a senior security operations engineer to build detection, incident response and vulnerability management across AWS and GCP.moderateSecurityThe advert describes a security operations capability that is still maturing, with work on cloud, endpoint and SaaS monitoring. That may mean tooling to replace or add to what it uses today.Who would buy it: Director of Information SecurityWhat could help: SIEM and detection platforms, vulnerability scanning, cloud security posture management, endpoint detection and response, managed detection and response servicesBased on: advert for Senior Security Operations Engineer, posted 4 Aug 2026; role posted: Senior Security Operations Engineer, 4 Aug 2026
    3. May need customer success tooling for onboarding, renewals and expansion tracking, as it hires a Customer Success Manager to scale the function for mid-market and enterprise accounts.tentativeCustomer success and supportThe advert says the customer base is growing quickly and asks the hire to design how customer success scales, with a focus on net revenue retention. That may mean platforms to track health, renewals and adoption.Who would buy it: Head of Customer SuccessWhat could help: Customer success platforms, product usage analytics, onboarding and adoption tools, customer advocacy and reference programme softwareBased on: advert for Customer Success Manager, posted 21 Oct 2026; role posted: Customer Success Manager, 21 Oct 2026
    The evidence (3)

    Report a problem with this company

  2. 2
    inforcerinforcer.comScore 32

    inforcer sells a multi-tenant platform to managed service providers (MSPs) for managing and securing Microsoft 365 and Copilot, with threat detection and response built in.

    • 8 UK roles posted since 1 Aug, about 15 per 100 staff (29 in all)
    • Staff rose from 36 to 53 in the year to Dec 2025, in its Companies House accounts

    What it may be in the market for

    Our reading of the evidence above, not something the company has said.

    1. May need sales and marketing tooling, such as lead follow-up automation, account-based marketing and outbound prospecting software, to support a large US sales build-out.strongSales and revenue operationsA run of senior and regional sales roles in Tampa and New York, plus pipeline generation and demand generation hires, suggests a push to build pipeline in North America. The adverts name Salesforce and HubSpot and talk of cadences and automation, so the stack may be extended.Who would buy it: Chief Revenue OfficerWhat could help: Sales engagement and outbound tools, ABM and intent data platforms, CRM and marketing automation add-ons, lead data and event services.Based on: role posted: Mid-Market Regional Sales Director, 21 Oct 2026; role posted: Regional Sales Director - Tampa, FL, 21 Oct 2026; role posted: Manager of Pipeline Generation, 10 Sep 2026; advert for Mid-Market Regional Sales Director - New York, posted 21 Oct 2026; advert for Senior Demand Generation Manager, posted 30 Sep 2026; advert for Manager of Pipeline Generation, posted 10 Sep 2026
    2. May need security operations tooling, such as SIEM, EDR and threat intelligence feeds, as it adds a US SOC engineer to run a 24/7 service.moderateSecurityThe SOC Engineer advert describes monitoring alerts, tuning detection and out-of-hours cover as its own environment grows. That suggests more investment in detection tooling and playbooks.Who would buy it: Head of SecurityWhat could help: SIEM, EDR/XDR, threat intelligence and alert-triage automation, and managed detection services for out-of-hours cover.Based on: role posted: SOC Engineer, 1 Oct 2026; advert for SOC Engineer - US, posted 1 Oct 2026; its own homepage
    3. May need US HR and payroll systems and services to support its first dedicated US People hire, as US headcount grows.tentativeHR, people and payrollThe advert for a first US People Generalist describes semi-monthly payroll, benefits, I-9 compliance and HRIS data handled through a PEO. A growing US team may bring more demand for HR systems and compliance support.Who would buy it: VP of PeopleWhat could help: HRIS and payroll software, US employment compliance tools, onboarding and benefits administration services.Based on: role posted: People Generalist, 16 Sep 2026; advert for People Generalist - US, posted 16 Sep 2026; Staff rose from 36 to 53 in the year to Dec 2025, in its Companies House accounts, 31 Dec 2025
    The evidence (2)

    Report a problem with this company

  3. 3
    KnowBe4knowbe4.comScore 31
    • 6 UK roles posted since 1 Aug (43 in all)
    • CGO appointment reported
    • Named in 2 of 60 AI-assistant answers
    The evidence (3)

    Report a problem with this company

  4. 4
    Valarianvalarian.comScore 29

    Valarian is a London company that sells a private AI platform, ACRA, which runs AI models inside a customer's own cloud environment so prompts and outputs stay within their control. Its adverts point to government, defence and enterprise customers.

    • 10 roles posted since 1 Aug
    • Named in 2 of 60 AI-assistant answers
    • Named by 1 news or web source since 1 Aug

    What it may be in the market for

    Our reading of the evidence above, not something the company has said.

    1. May need third-party penetration testing and vulnerability management services, as a product manager role is being hired to schedule pentests and triage findings for its ACRA platform.moderateSecurityThe advert for a senior technical product manager describes managing external pentest providers, contractor budgets and remediation workflows. This suggests it may keep buying outside security testing and tracking tools as it sells to government and defence customers.Who would buy it: Head of EngineeringWhat could help: Penetration testing services, vulnerability management and remediation tracking software, security assurance and compliance toolingBased on: advert for Senior Technical Product Manager, posted 2 Sep 2026; its own homepage; role posted: Senior Technical Product Manager, 2 Sep 2026
    2. May need graph database, data pipeline and data platform reliability tooling, as it is hiring a senior data engineer for ontologies and knowledge graphs and a DataOps engineer.moderateData and analyticsThe adverts describe building graph, relational and NoSQL data foundations for ACRA applications and its AI assistant, with deployment, backfills and recovery. The hiring suggests it may buy database, pipeline orchestration and monitoring products.Who would buy it: Head of EngineeringWhat could help: Graph database platforms, data pipeline and orchestration tools, data observability and backup and recovery softwareBased on: advert for Senior Data Engineer - Ontology & Knowledge Graphs, posted 26 Oct 2026; role posted: Senior Data Engineer - Ontology & Knowledge Graphs, 26 Oct 2026; role posted: Senior DataOps Engineer, 26 Oct 2026
    3. May need defence bid and capture management tools and compliance assurance services, as it is hiring a defence business development manager and a perplexity partnership was reported on 20 October.moderateSales and revenue operationsThe defence advert covers RFI and RFP responses, account mapping, pipeline, security clearances and assurance audits. Together with the news of a sovereign tech tie-up, this suggests it may invest in tools and certification support to sell into government and primes.Who would buy it: Head of DeliveryWhat could help: Bid and proposal management software, CRM and pipeline tools, government security certification and assurance consultancyBased on: advert for Business Development Manager - Defence, posted 23 Oct 2026; role posted: Business Development Manager, 23 Oct 2026; City AM: AI giant Perplexity taps London startup Valarian in sovereign tech drive, 20 Oct 2026
    The evidence (3)

    Report a problem with this company

  5. 5
    Snyksnyk.ioScore 24
    • 5 UK roles posted since 1 Aug (37 in all)
    • Named in 3 of 60 AI-assistant answers
    • Named by 1 news or web source since 1 Aug
    The evidence (3)

    Report a problem with this company

  6. 6
    PortSwiggerportswigger.netScore 24

    PortSwigger makes Burp Suite, a web security testing tool, and runs the Web Security Academy and its own security research. It sells to pentesters and to organisations that test their web applications.

    • 4 roles posted since 1 Aug
    • Named in 3 of 60 AI-assistant answers
    • Named by 1 news or web source since 1 Aug

    What it may be in the market for

    Our reading of the evidence above, not something the company has said.

    1. May need AI-assisted case routing and resolution tooling for customer support, as the AI Support Operations Specialist advert describes a live system handling incoming cases.moderateAI and automationThe advert says the role will own and improve a live support system, with automatic resolution, routing accuracy and safety checks before actions on customer accounts. This suggests the company may look at tooling that supports this work.Who would buy it: Head of Customer ExperienceWhat could help: AI support automation platforms, case routing and triage tools, knowledge base software, and testing or guardrail tools for automated account actionsBased on: role posted: AI Support Operations Specialist, 23 Oct 2026; advert for AI Support Operations Specialist, posted 23 Oct 2026
    2. May need sales enablement and coaching tools, as the Sales Enablement Specialist advert names a CRM, Gong, an LMS and AI tooling to be adopted across commercial teams.moderateSales and revenue operationsThe role is meant to improve ramp, certification and adoption with measurement tied to revenue. This suggests the company may look at tools that support onboarding, learning and conversation insight.Who would buy it: Head of Sales or Chief Revenue OfficerWhat could help: Learning management systems, sales coaching and conversation intelligence software, content and playbook tools, and AI tools for enablement contentBased on: role posted: Sales Enablement Specialist, 19 Oct 2026; advert for Sales Enablement Specialist, posted 19 Oct 2026
    3. May need customer health and usage analytics tooling, as the Technical Account Manager advert describes watching usage, support patterns and stalled deployments to head off renewal problems.tentativeCustomer success and supportThe advert describes reading account health data to spot quiet accounts early. This suggests the company may want tooling that joins up usage, support and renewal data.Who would buy it: Head of Customer ExperienceWhat could help: Customer success platforms, product usage analytics, account health scoring and renewal forecasting softwareBased on: role posted: Technical Account Manager, 1 Oct 2026; advert for Technical Account Manager - Knutsford, posted 1 Oct 2026
    The evidence (3)

    Report a problem with this company

  7. 7
    Bridewellbridewell.comScore 24

    Bridewell is a UK cyber security services company that provides consultancy and managed security services. It sells to operators of Critical National Infrastructure and other highly regulated organisations.

    • Named in 9 of 60 AI-assistant answers
    • 10 roles posted since 1 Aug

    What it may be in the market for

    Our reading of the evidence above, not something the company has said.

    1. May need extra security tooling and licences for its managed security and incident response services, as the hiring suggests the Microsoft security stack and endpoint tooling are central to delivery.moderateSecurityAdverts for a managed-service client lead and a senior incident responder cite continued growth, the Microsoft Security stack and endpoint, network and cloud investigations. A contract Tanium specialist is also being sought, which suggests tooling work.Who would buy it: Chief Technology Officer or Head of Managed Security ServicesWhat could help: Endpoint detection and response tools, SIEM and SOAR platforms, digital forensics software and threat intelligence feedsBased on: advert for Client Lead, posted 14 Oct 2026; advert for Senior Incident Responder, posted 8 Oct 2026; role posted: Tanium Technical SME, 16 Oct 2026; 10 roles posted since 1 Aug, 16 Oct 2026
    2. May need finance systems support for billing, revenue recognition and credit control, as it is hiring a junior accountant to work in Salesforce revenue templates and chase receivables.tentativeFinance and accountingThe advert shows invoicing, revenue recognition and month-end work being done with manual templates and spreadsheets. Hiring at entry level suggests the finance team is adding capacity to routine processes that tooling could automate.Who would buy it: Chief Financial OfficerWhat could help: Billing and revenue recognition software, credit control automation, accruals and reconciliation tools, and fixed asset registersBased on: advert for Junior Accountant, posted 30 Sep 2026; role posted: Junior Accountant, 30 Sep 2026
    3. May need identity and access management platforms to build a new Identity practice for CNI clients, with a managed identity service on its roadmap.tentativeEngineering and productThe Identity Practice Lead advert describes building a portfolio covering privileged access, identity governance and zero trust. A planned managed identity service may mean vendor partnerships and lab or demo environments.Who would buy it: Identity Practice Lead or Chief Technology OfficerWhat could help: IAM, privileged access management and identity governance platforms, partner programmes, training and lab environmentsBased on: advert for Identity Practice Lead, posted 23 Sep 2026; role posted: Identity Practice Lead, 23 Sep 2026
    The evidence (2)
    • Hiring10 roles posted since 1 AugReport a problemIts jobs page, read 16 Oct 2026
    • AI assistantsNamed in 9 of 60 AI-assistant answersReport a problem"Which UK managed security service providers and security operations centres are growing fastest?": 3 of 6
      "Which UK threat intelligence, detection and incident response companies are worth knowing about?": 3 of 6
      "Which UK cybersecurity consultancies and penetration testing firms are growing fastest?": 2 of 6
      "Which UK cybersecurity companies are hiring the most right now?": 1 of 6

    Report a problem with this company

  8. 8
    CoreTech Securitycoretech-security.comScore 23

    CoreTech Security is a cyber security research and engineering company based in Cheltenham and Salisbury. It does vulnerability research and software engineering, and it builds bespoke products for clients it describes as trusted, in the UK.

    • 5 roles posted since 1 Aug, about 6 per 100 staff
    • Staff rose from 67 to 79 in the year to Mar 2026, in its Companies House accounts

    What it may be in the market for

    Our reading of the evidence above, not something the company has said.

    1. May need test infrastructure, such as device farms, lab hardware and test automation tooling, as the hiring of integration and test engineers suggests larger multi-technology projects.moderateEngineering and productThe adverts describe building representative test environments, automating deployments and testing systems that combine Linux or Android devices, networks and specialist hardware. That suggests spending on tooling and equipment to support it.Who would buy it: Head of EngineeringWhat could help: Test automation and CI tooling, device and hardware test labs, network emulation and simulation equipment, and deployment automation softwareBased on: advert for Integration and Test Engineer, posted 17 Sep 2026; role posted: Integration and Test Engineer, 17 Sep 2026; advert for Principal Systems Engineer, posted 17 Sep 2026
    2. May need vulnerability research tooling and mobile and embedded device hardware, as it keeps recruiting vulnerability researchers at several levels.moderateSecurityThree of the five recent roles are researcher roles, and the adverts focus on Android, ARM and MIPS reverse engineering and hardware hacking. A growing research team may need more analysis tools and target devices.Who would buy it: Head of Vulnerability ResearchWhat could help: Reverse engineering and fuzzing tools, debugging and hardware analysis equipment, mobile and embedded test devices, and training coursesBased on: advert for Experienced Vulnerability Researcher, posted 11 Sep 2026; advert for Vulnerability Researcher Internship - Summer 2027, posted 18 Sep 2026; advert for Junior Vulnerability Researcher - September 2027, posted 25 Aug 2026; role posted: Experienced Vulnerability Researcher, 11 Sep 2026; 5 roles posted since 1 Aug, about 6 per 100 staff, 18 Sep 2026
    3. May need early-careers and training programme support, as it is recruiting interns and junior researchers for 2027 intakes into its internal academy.tentativeHR, people and payrollThe summer 2027 internship and the September 2027 junior role feed a graduate intake and an academy for training. Running this may involve outside services for attracting, assessing and training graduates.Who would buy it: Head of PeopleWhat could help: Graduate recruitment platforms, assessment tools, technical training content and learning platformsBased on: role posted: Vulnerability Researcher Internship - Summer 2027, 18 Sep 2026; role posted: Junior Vulnerability Researcher - September 2027, 25 Aug 2026; advert for Vulnerability Researcher Internship - Summer 2027, posted 18 Sep 2026; advert for Junior Vulnerability Researcher - September 2027, posted 25 Aug 2026
    The evidence (2)

    Report a problem with this company

  9. 9
    SailPointsailpoint.comScore 20
    • 8 UK roles posted since 1 Aug (61 in all)
    • Named in 3 of 60 AI-assistant answers
    The evidence (2)

    Report a problem with this company

  10. 10
    Harmonic Securityharmonic.securityScore 20
    • 6 UK roles posted since 1 Aug (11 in all)
    • Named in 3 of 60 AI-assistant answers
    The evidence (2)

    Report a problem with this company

Strong momentum 11 to 24

  1. 11
    TryHackMetryhackme.comScore 17

    TryHackMe runs an online platform that teaches cyber security through hands-on labs in the browser. It sells training to individual learners and to businesses and schools, and is a fully remote team based mainly in the UK.

    • 7 roles posted since 1 Aug
    The evidence (1)

    Report a problem with this company

  2. 12
    Geordie AIgeordie.aiScore 17

    Geordie AI sells an AI governance platform that helps large organisations adopt AI agents safely, covering how agents behave, compliance and controls. Its customers are enterprises, and it is building teams in the UK, the US and EMEA.

    • Named in 7 of 60 AI-assistant answers
    • 3 UK roles posted since 1 Aug (4 in all)
    The evidence (2)
    • Hiring3 UK roles posted since 1 Aug (4 in all)Report a problemIts jobs page, read 7 Oct 2026
    • AI assistantsNamed in 7 of 60 AI-assistant answersReport a problem"Which UK cybersecurity scale-ups should I watch in 2026?": 5 of 6
      "Which UK data protection, email security and cloud security companies are scaling fastest?": 1 of 6
      "Which British cybersecurity companies have raised significant funding in the last few months?": 1 of 6

    Report a problem with this company

  3. 13
    Assured Data Protectionassured-dp.comScore 14

    Assured Data Protection is a managed services provider offering data backup, disaster recovery and cyber recovery to businesses. It says it supports close to 1,000 customers in 70 countries with a team of nearly 300 people, and is Rubrik's largest MSP partner.

    • CFO appointment reported
    • Named in 3 of 60 AI-assistant answers
    The evidence (2)

    Report a problem with this company

  4. 14
    Yotiyoti.comScore 13

    Yoti provides identity verification tools, including age estimation, ID checks, facial recognition, liveness detection and reusable digital ID wallets. It sells to businesses that need to check who their customers are and meet regulations.

    • Named in 3 of 60 AI-assistant answers
    • Named by 1 news or web source since 1 Aug
    The evidence (2)
    • MentionsNamed by 1 news or web source in the windowReport a problemFinancial Times, 15 Oct 2026: Yoti comes of age as demand for digital ID grows
    • AI assistantsNamed in 3 of 60 AI-assistant answersReport a problem"What are the best UK identity, access management and authentication security companies?": 3 of 6

    Report a problem with this company

  5. 15
    Infotechtioninfotechtion.comScore 12
    • CFO appointment reported
    The evidence (1)

    Report a problem with this company

  6. 16
    Trustonictrustonic.comScore 12
    • 3 roles posted since 1 Aug, 0 marked UK and 3 with no place (5 more listed abroad, not counted)
    The evidence (1)

    Report a problem with this company

  7. 17
    Netcraftnetcraft.comScore 12
    • 3 UK roles posted since 1 Aug (9 in all)
    The evidence (1)

    Report a problem with this company

  8. 18
    Nexornexor.comScore 10
    • Named by 1 news or web source since 1 Aug
    The evidence (1)
    • MentionsNamed by 1 news or web source in the windowReport a problemTheBusinessDesk, 24 Aug 2026: Surplus surges at Nottingham defence technology firm as revenues break £10m

    Report a problem with this company

  9. 19
    CYSIAMcysiam.comScore 9
    • Named in 4 of 60 AI-assistant answers
    • Staff rose from 36 to 44 in the year to Nov 2025, in its Companies House accounts
    The evidence (2)

    Report a problem with this company

  10. 20
    Cognisyscognisys.co.ukScore 2
    • Named in 3 of 60 AI-assistant answers
    The evidence (1)
    • AI assistantsNamed in 3 of 60 AI-assistant answersReport a problem"Which UK cybersecurity consultancies and penetration testing firms are growing fastest?": 3 of 6

    Report a problem with this company

  11. 21
    Condatiscondatis.comScore 2
    • Named in 2 of 60 AI-assistant answers
    The evidence (1)
    • AI assistantsNamed in 2 of 60 AI-assistant answersReport a problem"What are the best UK identity, access management and authentication security companies?": 2 of 6

    Report a problem with this company

  12. 22
    Cybanetixcybanetix.comScore 2
    • Named in 2 of 60 AI-assistant answers
    The evidence (1)
    • AI assistantsNamed in 2 of 60 AI-assistant answersReport a problem"Which UK managed security service providers and security operations centres are growing fastest?": 2 of 6

    Report a problem with this company

  13. 23
    Evalianevalian.co.ukScore 2
    • Named in 2 of 60 AI-assistant answers
    The evidence (1)
    • AI assistantsNamed in 2 of 60 AI-assistant answersReport a problem"Which UK cybersecurity consultancies and penetration testing firms are growing fastest?": 2 of 6

    Report a problem with this company

  14. 24
    Sapphiresapphire.netScore 2
    • Named in 2 of 60 AI-assistant answers
    The evidence (1)
    • AI assistantsNamed in 2 of 60 AI-assistant answersReport a problem"Which UK managed security service providers and security operations centres are growing fastest?": 2 of 6

    Report a problem with this company

Also watched

We found nothing new in public sources for these companies between 1 Aug 2026 and 29 Oct 2026. They are not ranked.

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