Penetration Testing Bristol
Precursor Security provides CREST-accredited penetration testing in Bristol, covering web applications, infrastructure, cloud, wireless, and red team operations. Bristol's aerospace, defence, and technology economy demands accredited testing with cleared personnel; our CREST organisational accreditation and BPSS-cleared testers meet that bar, with on-site delivery across the city and remote-first phases keeping engagements efficient.
CREST-accredited penetration testing for Bristol organisations: web applications, infrastructure, cloud, and red team operations, built for a city where aerospace, defence, and deep tech set a high assurance bar.
Testing at the standard Bristol's
industries expect.
Bristol combines one of Europe's largest aerospace and defence clusters with a deep tech and silicon design scene, a significant fintech and insurance base, and two research universities. It is a city where security requirements arrive contractually: defence primes mandate accredited testing and cleared personnel, chip and deep tech firms protect IP that represents their entire valuation, and fintechs face FCA expectations. We deliver to that standard, from CREST-accredited application and infrastructure testing through to red team operations that exercise detection and response.
Who We Test In Bristol
Testing scoped to the sectors that define Bristol's economy, because a meaningful penetration test starts from who actually attacks businesses like yours, and what they are after.
How We Reach You
Bristol is served from our London office. Supported through our London office, under two hours from Bristol by rail, with remote-first delivery for most testing phases.
CREST-Accredited, Verifiably
Precursor Security holds CREST organisational accreditation for penetration testing, independently audited across methodology, QA, and tester competency. Every engagement letter carries our membership number for direct verification by your auditors, insurers, or customers.
No Travel Games. No Scanner Reports. No Offshoring.
Bristol clients get the same team, methodology, and day rate as our London and Leeds clients: manual testing by employed, UK-based CREST Registered Testers, fixed quotes agreed at scoping, immediate escalation of critical findings, and free retesting of everything you fix. On-site internal, wireless, and physical testing across Bristol and Bath, with remote phases delivered from our UK offices.
Every Test,
Delivered In Bristol.
The full offensive security portfolio is available to Bristol organisations. Each service links to its full methodology, and every engagement ends with reporting your engineers can action and your auditors can file.
Web Application Penetration Testing Bristol
Manual, CREST-accredited testing of the web applications and APIs your Bristol business depends on. Full OWASP coverage plus the business logic and access control flaws automated scanners miss, with free retesting of every finding.
Internal & External Network Testing Bristol
External testing of your internet-facing perimeter, and internal testing that maps what an attacker could reach once inside: Active Directory attack paths, lateral movement, and privilege escalation. On-site delivery in Bristol.
Cloud Penetration Testing Bristol
Configuration review and attack-path testing across AWS, Azure, Microsoft 365, and GCP. We find the identity misconfigurations, exposed storage, and over-privileged roles that cause most real cloud breaches.
Wireless Network Testing Bristol
On-site assessment of your wireless estate in Bristol: rogue access point detection, segregation between guest and corporate networks, and attacks against enterprise authentication.
Mobile Application Testing Bristol
iOS and Android application assessments covering insecure storage, API trust boundaries, and platform hardening, for Bristol businesses shipping mobile products or internal apps.
Cyber Essentials & Compliance Bristol
Cyber Essentials and Cyber Essentials Plus certification, ISO 27001 support, and PCI DSS testing for Bristol organisations that need recognised certification alongside technical assurance.
Threat Detection & Response for Bristol, 24/7.
A penetration test proves what an attacker could do today. Our UK Security Operations Centre watches for the ones who try tomorrow: managed detection and response, a CREST-accredited SOC, and incident response for Bristol organisations, delivered entirely from UK soil.
Explore Defensive SecurityHow Engagements Run In Bristol.
From first call to free retest. Every Bristol engagement is managed by a named account manager with direct access to the testing team, no ticket queues between you and the people doing the work.
Scoping & Fixed Quote
A free scoping call, usually within 24 hours of your enquiry, where a technical consultant (not a salesperson) defines what needs testing, agrees the approach, and produces a fixed quote. Bristol clients can scope by video call or, where practical, in person via our London office.
Testing In Bristol
CREST Registered Testers execute the engagement during agreed windows: remote phases for external, web, and cloud testing, and on-site or appliance-based delivery for internal and wireless work in Bristol. You get daily progress updates, and critical findings are escalated immediately rather than saved for the report.
Reporting Built for Two Audiences
Every report contains an executive summary your board and customers can read, and a technical annex your engineers can action: reproduction steps, evidence, CVSS scoring, and specific remediation guidance. Reports are quality-assured before delivery and structured for auditors, insurers, and customer due diligence reviews.
Debrief & Free Retesting
A full debrief walks your team through findings and attack chains, in person in Bristol or at our London office where practical, or by video call. Once you have remediated, we retest the fixed findings free of charge and issue updated reporting, so your evidence shows issues closed, not just found.
The best time to test your defences is now.
Join the high-growth companies relying on Precursor for continuous offensive and defensive security.
Frequently Asked Questions
Common questions about this service, methodologies, and deliverables.
Penetration testing for Bristol organisations typically costs between £2,500 and £25,000 plus VAT depending on scope. A focused single web application or external infrastructure test usually falls between £2,500 and £6,250, most standard engagements land between £3,750 and £12,500, and larger multi-scope programmes range higher. Location does not change our day rate: Bristol clients pay the same as London clients. Every quote is fixed after a free scoping call, and retesting of fixed findings is included.
Bristol is served from our London office. Supported through our London office, under two hours from Bristol by rail, with remote-first delivery for most testing phases. On-site internal, wireless, and physical testing across Bristol and Bath, with remote phases delivered from our UK offices. All testing is delivered by UK-based, employed testers, never subcontracted or offshored.
Yes. Our CREST organisational accreditation, ISO 27001 certified management system, and BPSS-cleared testers as standard meet the assurance requirements defence primes place on suppliers. We regularly deliver testing whose reports are consumed by prime contractor security teams, and we can discuss enhanced clearance requirements for specific programmes at scoping.
Yes. Full red team operations, including phishing, physical intrusion, and objective-based network attack, are available to Bristol organisations that want to test detection and response rather than just find vulnerabilities. For most businesses we recommend building from penetration testing toward red teaming as detection capability matures, and we will advise honestly on which is right for you now.
Yes. Precursor Security holds CREST organisational accreditation for penetration testing, the leading UK standard for testing providers, alongside ISO 27001:2022 certification and Cyber Essentials Plus. Testing in Bristol is delivered by CREST Registered Testers with additional certifications including OSCP, and our engagement letters reference our CREST membership number so auditors, insurers, and customers can verify it directly.