Penetration Testing Services · United Kingdom
CREST-Aligned Penetration Testing Services for UK Enterprises
ISO 27001:2022, SOC 2 aligned penetration testing aligned to CREST methodology, NCSC CHECK principles, and Cyber Essentials Plus. OSCP-led engineers, draft report in 5–7 days, retest included.
ISO 27001:2022
Certified
CREST
Methodology-aligned
Cyber Essentials Plus
Audit-ready
OSCP-led
Offensive ops
200+
Pentests delivered
50+
Enterprise clients
9+ yrs
OSCP-led offensive ops
2
Offices · Surat + Mumbai
What's included in a Certbar pen test
Penetration testing aligned to **CREST methodology** and **NCSC CHECK principles**, performed by OSCP-led offensive engineers. Every engagement closes with a board-ready brief in business language, a technical report mapped to OWASP + MITRE ATT&CK, the **Cyber Essentials Plus** / **ISO 27001:2022** evidence pack your auditor wants, and a retest included in the original scope.
Why UK security teams pick Certbar
CREST methodology-aligned reports — accepted by ISO 27001 / SOC 2 auditors and the major UK insurers.
ISO 27001:2022 + ISO 27701:2019 certified — privacy-aware testing for GDPR / UK GDPR scopes.
Cyber Essentials Plus audit-pack format on request.
OSCP / OSCE-certified engineers — no junior offshoring, no scanner-only reports.
India-based delivery, UK-time-zone overlap — daily cadence calls in your business hours.
40–60% lower TCO than UK pure-plays for the same human-led depth.
Data residency on request — reports stored in EEA region, signed MSA + UK GDPR DPA.
Trusted by enterprises across United Kingdom
What we test
Eight pentest disciplines under one engagement
Web Application Pentest
OWASP Top 10, ASVS, business logic, auth, session, file upload chains.
Mobile App Pentest
iOS + Android, MASVS Level 2, IPC, keychain, biometric, root/jailbreak bypass.
API / REST + GraphQL
OWASP API Top 10, broken auth, BOLA, mass assignment, GraphQL-specific abuse.
Network Pentest
External + internal, perimeter, lateral movement, privilege escalation.
AWS / Azure / GCP
Cloud configuration audit + identity attack-path testing across providers.
Active Directory
Kerberoasting, ASREP-roast, ACL abuse, BloodHound-driven path analysis.
IoT Device Pentest
Firmware reverse, protocol analysis, hardware interface attack.
Thick-Client Pentest
Binary reverse, IPC, local privilege, broken crypto, hardcoded secrets.
Methodology
Six steps from scoping to sign-off
01
Scoping & Threat Model
We document assets, user roles, abuse cases, data classifications, and the framework you report against. Output: signed SoW, no surprise change-orders.
02
Reconnaissance & Mapping
Attack-surface enumeration: subdomains, services, exposed endpoints, third-party integrations, leaked credentials, OSINT.
03
Vulnerability Discovery
Hybrid automated + manual probing across OWASP / MASVS / API Top 10 / MITRE ATT&CK. Findings triaged for false positives before exploitation.
04
Exploitation & Lateral Movement
Hands-on exploitation by OSCP-led engineers. Chain weaknesses to demonstrate the business impact a real attacker would achieve.
05
Reporting & Board Brief
Two artefacts: a board-ready brief in business language and a technical report mapped to OWASP, CWE, MITRE ATT&CK + your compliance framework.
06
Retest & Sign-off
One free retest included. Updated report reflecting closed findings, signed off by the testing lead.
Compliance
Compliance-aligned deliverables
UK enterprises buy pen testing to satisfy ISO 27001 / SOC 2 audit windows, GDPR Article 32 obligations, and Cyber Essentials Plus assessments. Every deliverable is aligned to the framework you report against.
ISO 27001:2022
Annex A.8.29 (security testing) evidence + risk-treatment narrative.
Cyber Essentials Plus
Audit-aligned external + internal scan + manual verification report.
UK GDPR Article 32
Security-of-processing evidence + personal-data exposure findings.
DORA (financial)
Operational-resilience pen test aligned to EU DORA threat-led testing.
PCI DSS 4.0
Requirement 11.4.x including segmentation testing.
SOC 2 Type II
Pen test letter + CC7.1 / CC8.1 mapping for your service auditor.
Industries served
Delivered for regulated and unregulated sectors alike
Frequently asked
Questions buyers ask before signing
Are reports CREST-methodology aligned?+
Yes. Our methodology aligns to CREST's pen-test methodology and NCSC CHECK principles. Reports are accepted by UK ISO 27001 auditors, SOC 2 service auditors, and the major UK cyber insurers. Certbar's CREST firm membership is in progress for 2026.
Do you deliver Cyber Essentials Plus audit packs?+
Yes. External and internal vulnerability assessment, manual verification, and the report format Cyber Essentials Plus assessors expect.
Are findings GDPR / UK GDPR audit-ready?+
Yes — every report includes a GDPR Article 32 (security of processing) narrative and a personal-data exposure section so your DPO can use it as evidence directly.
Where will my report data be stored?+
On request: EEA-region storage with signed MSA + UK GDPR DPA, IDTA where appropriate. No subcontracting outside the agreed region.
How does pricing compare to UK firms?+
Same OSCP-led manual depth as UK pure-plays, 40–60% lower TCO. Typical UK web-app pentest GBP 12-25k; Certbar same scope GBP 5–10k.
Do you cover DORA threat-led penetration testing?+
Yes — for financial entities subject to EU DORA, we deliver pen tests aligned to operational-resilience requirements with the documentation format DORA assessors expect.
Is a retest included?+
Yes. One free retest per engagement once you remediate, with an updated report reflecting closed findings.
Do you outsource or subcontract testing?+
No. 100% in-house OSCP / OSCE / CRTO-certified engineers. Every report ships with the testing lead named.
Why choose Certbar over a UK-only firm?+
Same OSCP-led manual depth, brand-name client wall (PayPal, IBM, Zapier, Semrush, Opera), 40–60% lower TCO, UK-time-zone overlap, audit-pack-ready deliverables from day one.
Ready to scope a pentest?
One call, signed SoW in 48 hours, draft report inside 5–7 business days for standard scope. No surprise change-orders.