What Prism Infosec does

Prism Infosec is a UK-based cyber security consultancy established in 2006 and headquartered in Cheltenham, Gloucestershire. The firm provides expert-led services across the full cyber security lifecycle, organized around three practice areas: Prepare (penetration testing, cloud security assessments, and red teaming), Respond (incident response and remediation services), and Manage (GRC consulting and managed security services). Prism Infosec serves a diverse client base including UK central government, NHS entities, law enforcement, financial institutions, and critical national infrastructure providers, with case studies spanning healthcare, financial services, non-profit, and law enforcement sectors.

The company's core technology asset is LuxisAI, a proprietary real-time platform that provides clients with live visibility into security testing findings, enabling faster remediation and collaborative engagement management. Prism Infosec holds an extensive portfolio of regulatory accreditations including CREST, CHECK, CBEST, STAR-FS, PCI-DSS QSA, CAA ASSURE, Cyber Incident Response Standard Level, and The Cyber Scheme, which collectively serve as a regulatory moat in serving highly regulated UK sectors. The firm has also launched specialized AI security testing services for LLM and generative AI systems, alongside proprietary methodologies such as PULSE agile red team engagement and the Prism ICS Evaluation Framework for operational technology environments.

Prism Infosec operates a sales-led B2B consultancy model with revenue generated primarily through scoped professional services engagements and recurring managed security services. Pricing is quote-based and tailored to engagement scope, complexity, and duration, with multi-year contract cadences for ongoing managed services. The company engages clients through direct sales outreach, website lead generation, and direct engagement with UK government and public sector bodies, supported by an outsourced digital marketing arrangement. The company is privately held by founders and management with no external institutional funding identified, generating "thousands of assessments" across its operational history.

Name

Prism Infosec

Legal name

Prism Infosec Ltd

Website

https://prisminfosec.com

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

11–50 employees

Short description

Prism Infosec is a UK-based cyber security consultancy providing expert-led penetration testing, red teaming, incident response, GRC, and managed security services to government, financial, healthcare, and critical national infrastructure clients via its LuxisAI platform.

Ownership category

akta.pro rank

Product category

Cybersecurity Services

NAICS

Computer Systems Design and Related Services (5415), Computer Systems Design and Related Services (54151), Other Scientific and Technical Consulting Services (54169)

SIC

Services-Computer Programming, Data Processing, Etc. (7370), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Vulnerability Management & Penetration Testing Services (BPAEADAD)

akta.pro secondary industries

Managed Security Services (MSSP) & 24/7 SOC Operations (BPAKAHAA), Security Operations Center (SOC) as a Service (BPAEADAB), Threat Intelligence Services (BPAEADAC)

Keywords

• Penetration testing services
• Cyber security consulting
• Incident response services
• Red team assessments
• Managed security services

Headquarters

HQ city

Cheltenham

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations

Revenue model

1. Cyber Security Consulting Services: Prism Infosec generates revenue primarily through professional services engagements including penetration testing, red teaming, incident response, GRC consulting, cloud security assessments, and managed security services. Engagements are typically scoped and delivered by their expert consultants, with pricing based on scope, complexity, and duration of assessment.
2. Managed Security Services: Recurring revenue through ongoing managed security services including 24/7 monitoring, vulnerability scanning, threat intelligence, incident detection and response support, security hardening, and cyber incident exercising. Services are delivered via the LuxisAI platform with ongoing retainer-style arrangements.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Prism Infosec is a UK-based cyber security consultancy delivering expert-led professional services across the full security lifecycle: Prepare (penetration testing, red teaming, cloud security assessments), Respond (incident response and remediation), and Manage (GRC consulting, managed security services). Services are delivered by accredited consultants holding CREST, CHECK, CBEST, STAR-FS, PCI-DSS QSA, and CAA ASSURE credentials, and are supported by LuxisAI, a proprietary real-time platform providing visibility into security testing findings and engagement progress.

Product overview

Prism Infosec is a UK-based cyber security consultancy offering expert-led services organized across the full cyber security lifecycle: Prepare (assessments and penetration testing), Respond (incident response and remediation), and Manage (GRC consulting and managed security services). The core offering is professional services delivered by accredited consultants, supported by the proprietary LuxisAI platform which provides real-time visibility into testing findings and engagement progress. Services span penetration testing, red teaming, cloud security, incident response, GRC consulting, and managed SOC services, with specialized offerings for regulated frameworks (CBEST, STAR-FS, TIBER-EU, DORA), aviation (CAA ASSURE), payment security (PCI-DSS QSA), and emerging AI/LLM security testing.

Differentiator

Problem solved

Functional benefit

Brands

• LuxisAI: Proprietary real-time platform providing clarity, control and confidence to security testing, enabling real-time insights, immediate visibility into findings, and collaborative security operations management.

Products and services

• LuxisAI Platform Prism Infosec's proprietary real-time platform that provides clients with real-time visibility into security testing findings, enabling them to act faster and stay ahead of risks. Supports both consultative and self-service engagement styles, and streamlines setup and reporting for high-volume testing.
• Cyber Security Assessments and Penetration Testing Comprehensive testing services including infrastructure, web application, mobile application, wireless, physical, and OT security testing delivered by CREST- and CHECK-accredited consultants, along with Cyber Essentials certification support.
• Cloud Security Cloud security services including risk assessments, security advice, and configuration reviews for AWS, Azure, GCP, Office 365, and other cloud platforms, designed for organisations migrating to or operating in the cloud.
• Red Teaming & Simulated Attack Adversary simulation services including full-scale red teaming, agile red team engagements (PULSE), social engineering simulation, and regulated threat-led penetration testing under CBEST, STAR-FS, TIBER-EU, DORA, GBEST, and GCASE frameworks.
• Incident Response Rapid cyber incident response including real-time support, forensic analysis, threat containment, post-incident recovery, and incident response retainers with guaranteed SLAs, delivered by Cyber Incident Response Standard Level certified consultants.
• Managed Security Services 24/7 managed security services including vulnerability scanning, threat intelligence, incident detection and response support, security hardening, and cyber incident exercising delivered via the LuxisAI platform on ongoing retainer-style arrangements.
• GRC & Security Consulting Governance, risk, and compliance consulting including cyber risk management, security policy production, secure architecture review, GDPR consulting, framework assessments (NIST CSF, NCSC CAF, GovAssure, CAA ASSURE, NIS, PCI-DSS), PCI-DSS QSA services, and CAA ASSURE aviation audits.
• Remediation Services Post-incident and post-assessment remediation services including emergency breach remediation, audit finding remediation, and collaborative post-engagement remediation to address identified vulnerabilities and strengthen defences.

Quantifiable outcome

• Thousands of successful assessments delivered to global enterprises, governments, and critical national infrastructure providers
• +1 more outcomes

Named customers7 records

Segments9 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Six partnerships are on record, tiered core and minor.

• The Cyber SchemecoreTechnology or IntegrationPrism Infosec is accredited by The Cyber Scheme, a testing scheme for government and critical national infrastructure penetration testing, alongside CREST and CHECK accreditations.
• CRESTcoreTechnology or IntegrationPrism Infosec holds multiple CREST accreditations including approved penetration testing, CBEST, STAR-FS, and Cyber Incident Response Standard Level certifications. Their data handling and customer engagement policies have been independently audited by CREST.
• National Cyber Security Centre (NCSC)coreTechnology or IntegrationPrism Infosec is aligned with NCSC through CHECK accreditation, Cyber Essentials Plus certification, and CAA ASSURE programme which is jointly delivered with NCSC and CREST approval.
• Civil Aviation Authority (CAA)coreTechnology or IntegrationPrism Infosec is one of a small number of CAA, NCSC and CREST-approved CAA ASSURE audit service providers for aviation cyber security oversight (CAP 1753).
• PCI Security Standards CouncilcoreTechnology or IntegrationPrism Infosec is an award-winning PCI-DSS Qualified Security Assessor (QSA) company authorised by the PCI Security Standards Council to conduct compliance assessments.
• Prospect Global Ltd (Sopro)minorGTM or Marketing PartnerDigital marketing agent appointed to conduct marketing activity on behalf of Prism Infosec. Sopro is registered with ICO (ZA346877) and compliant with GDPR legislation.

Scale indicators2 records

Broad incumbents

• Mandiant (Google Cloud): Global incident response, threat intelligence, and security consulting leader — competes with Prism on CBEST-grade incident response and threat-led testing but at much larger scale and broader capability set.
• WithSecure: European-headquartered cyber security provider offering managed security, consulting, and vulnerability management; broader portfolio than Prism but overlaps on regulated-sector assessment and managed services.
• Trustwave: Global MSSP and security consultancy offering penetration testing, managed security, and GRC — broader service portfolio and global footprint than Prism, with overlap in regulated industry testing.
• F-Secure: Global cyber security vendor offering managed security services, vulnerability assessment, and consulting at significantly larger scale — overlaps on MSS and pen testing but spans broader consumer and enterprise portfolio.

Direct peers

• Secarma: UK-based cyber security consultancy delivering penetration testing, red teaming, managed security, and GRC; comparable CREST/CHECK-accredited service offering to UK enterprise and public sector clients.
• NCC Group: UK-headquartered cyber security and resilience firm offering penetration testing, red teaming, managed detection/response, GRC consulting, and CHECK/CREST accredited services — directly comparable across service portfolio, accreditation stack, and regulated-sector client base.
• Cyberis: UK cyber security consultancy providing penetration testing, incident response, and managed security services with CREST and CHECK accreditations; comparable scale and service mix in UK regulated markets.
• Pen Test Partners: UK-based penetration testing and red team consultancy with strong credentials in CHECK/CREST and cyber-physical/IoT/OT testing; comparable niche focus on technical offensive security services.
• Bridewell (formerly Pentest Ltd): UK cyber security consultancy delivering penetration testing, managed security services, GRC, and threat-led testing to CNI, financial services, and aviation clients; closely comparable in size, accreditation profile, and vertical focus.
• Bishop Fox: US-headquartered offensive security specialist offering penetration testing, red teaming, and managed security testing — comparable in technical offensive security positioning and regulated client work.

Market position

Strengths4 records

Weaknesses4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/prisminfosec
• LinkedInlinkedin.com/company/prism-infosec-ltd/posts/?feedView=all

Compliance14 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Prism Infosec