CREST Penetration Testing in Sheffield
£2,400 Flat per App

For Sheffield's advanced manufacturing suppliers, EdTech firms and construction software teams.

CREST accredited: Penetration Testing CREST accredited: Vulnerability Assessment CREST accredited: App Security Testing CREST accredited: Mobile App Security Testing

Get your £2,400 pentest quote

Tell us about your app. We reply within 1 business day with a fixed quote. No call needed.

  • £2,400 flat per app and its API, any size
  • Retest included
  • CREST accredited, rated 4.8/5 on G2

Prefer to talk? Book a 30-min scoping call

Penetration Testing for Sheffield Teams

South Yorkshire

Sheffield turned its steel heritage into advanced manufacturing, with the University of Sheffield's Advanced Manufacturing Research Centre working alongside aerospace, energy and automotive firms. The city also has a large Department for Education presence and a digital sector that builds software for schools, colleges and public bodies. Construction and engineering firms add demand for project, site and field service tools.

Manufacturers are asked by tier one customers to show their connected systems are secure. Schools and colleges now check suppliers against the DfE's digital and technology standards. Construction clients ask about software security in tenders. An independent CREST pentest answers all three. Defence work that requires CHECK is outside what we do, and we will say so.

What Sheffield Teams Bring Us to Test

Advanced manufacturing and industrial IoT

Firms in Sheffield's manufacturing cluster run customer portals, machine monitoring dashboards and quality systems on the web. Tier one customers in aerospace and automotive assess suppliers' cyber controls, including web-facing ones.

What we focus onDashboard and device API authentication, customer access to machine and quality data, firmware or file upload paths, partner logins, and the web layer between cloud dashboards and the shop floor. OT itself is out of scope.

EdTech for schools and colleges

Sheffield EdTech companies sell management, assessment and parent communication tools to schools and colleges. Buyers now ask about supplier security, and pupil and safeguarding data puts these products under close scrutiny.

What we focus onSeparation between schools in multi-academy trusts, staff, pupil and parent roles, safeguarding record access, bulk import and export of pupil data, and integration keys for school information systems.

Construction and field service software

Project management, site access, health and safety and field service tools used by construction and engineering firms hold contractor identities, site plans and photos. Main contractors include these tools in supplier reviews.

What we focus onContractor and subcontractor access scoping, site plan and drawing exposure, photo and document uploads, timesheet and payment approval flows, and offline sync endpoints used by devices in the field.

What We Often Find

On Sheffield's manufacturing, education and construction platforms, these are four findings we probe on almost every engagement.

Device API without authentication

Monitoring dashboards that accept machine data through unauthenticated or shared-key APIs let anyone inject false readings or read production data. Customers see this as a supply chain risk.

Cross-school pupil data

In multi-academy trust setups, a user from one school can sometimes reach another school's pupils by changing an ID. Pupil and safeguarding data make this a serious breach.

Subcontractor sees the whole project

Construction portals that give subcontractors project-wide access expose drawings, costs and other firms' documents. Access should follow the work package each firm is actually on.

Approval bypass on timesheets

Payment and timesheet approval flows that can be completed by calling the API directly skip the manager's sign-off. This creates a simple route to fraudulent payments.

Trusted by SaaS Teams Worldwide

£2,400. Not £12,000–£25,000.

What UK pricing guides put a SaaS app with an API and several user roles at.

Typical UK quote
CyberFortify
How it’s priced
Typical UK firm: day rates (median ~£1,000/day)
£2,400 flat per application
SaaS app, API, several roles
£12,000–£25,000
£2,400
Retest of your fixes
Often extra, £2,000–£5,000
Included
App bigger than expected
More days, bigger invoice
Same £2,400, no size cap
Who tests
Varies by firm
CREST-accredited engineers

Sources: Stingrai Penetration Testing Price Index (Sept 2026, median of 30 G-Cloud 14 rate cards) and Cyphere’s UK cost guide (2026).

Got a UK Quote? See Your Saving

Example figures are filled in. Change them to match your quote.

days
£
£
£
Your saving
Your UK quote£9,500
CyberFortify, retest included£2,400
£7,10075% less than your quote
Book my £2,400 pentest

One Price, Everything In It

Per application · any size

£2,400flat

  • One web app and its API, no endpoint cap
  • Testing starts within a week, report in 4–7 working days
  • Free retest, signed attestation letter
Book a scoping call

Included in the £2,400

  • AI-enabled testing, with every finding validated and exploited by CREST-accredited engineers
  • Authentication, access control between user roles and business logic
  • Criticals flagged within 24 hours, not held for the final report
  • CVSS-scored findings with reproduction steps and the fix
  • Clean report and signed attestation letter for customers, auditors and insurers
  • ISO 27001 and ISO 9001 certified processes, professional liability cover and Koop cyber insurance

One application = one web product your users sign in to, plus its API. Mobile apps, internal networks and cloud reviews are scoped separately. Prices exclude VAT.

From First Call to Clean Health Report

9 gates, the same sequence on every engagement.

  1. 01

    Discovery

    Client insight

    We send a short questionnaire to understand your infrastructure, business requirements and security concerns.

    Owner: you + CyberFortifyOutput: completed questionnaire
  2. 02

    Agreement

    Scope & SOW

    We analyse your answers, define a clear scope and issue the Statement of Work.

    Duration: 2–3 business daysOutput: signed SOW
  3. 03

    Initiation

    Kickoff meeting

    We walk through methodology, timeline and requirements, and access is handed over securely.

    Format: live sessionOutput: methodology brief
  4. 04

    Active testing

    Testing execution

    AI-enabled coverage, then accredited engineers validate and exploit. High and critical findings are sent to you immediately.

    Duration: 4–7 working daysLive alerts: high & critical
  5. 05

    Reporting

    Report delivery

    Every finding with risk rating, technical detail and step-by-step remediation, mapped to your controls.

    Format: PDF + machine-readableAudit-ready
  6. 06

    Walkthrough

    Report review

    A session with your technical team to explain findings, priorities and remediation approaches.

    Duration: 60–90 minutesRecorded on request
  7. 07

    Remediation

    You fix

    Your teams implement fixes. We stay available for guidance throughout.

    Timeline: you set itSupport: on call
  8. 08

    Verification

    Retest

    We re-test every previously identified issue to confirm the fix and check nothing new was introduced.

    Cost: includedScope: every finding
  9. 09

    Attestation

    Clean health report

    A final report confirming remediation and your improved security posture, ready to share with auditors.

    Audit-readyShareable with customers

What Sheffield Buyers Ask For

DfE digital and technology standards

Schools and colleges are expected to meet the DfE's cyber security standards and to check their suppliers. Your pentest report helps them complete that supplier check quickly.

IEC 62443 (web-facing components)

Industrial customers increasingly reference IEC 62443. Our test covers the web portals and APIs around your industrial systems, giving evidence for that part of a wider assessment.

Tier one supplier cyber questionnaires

Aerospace and automotive customers send detailed questionnaires to suppliers. A CREST report with retest results answers the testing questions independently. CHECK-scoped defence work needs a CHECK company.

Before you book.

We sell to multi-academy trusts. Will you test isolation between schools?

Yes, it is one of the first things we check. We set up accounts in at least two schools or trusts and try to cross between them through the interface, API, exports and reports. We also test staff, pupil and parent roles within a school, and how safeguarding information is protected from users who should not see it.

Our machine monitoring dashboard talks to factory equipment. How far does your test go?

We test the web dashboard, its API and any device-facing endpoints exposed to the internet. We do not test PLCs, control networks or the machines themselves, and we agree that boundary in writing first. If we find a route from the web app towards operational systems, we stop, record it and tell you straight away.

A main contractor asked for a pentest of our site safety app. What will they want to see?

Usually an independent report from an accredited firm, findings ranked by severity, and confirmation that serious issues are fixed. They may also ask whether both the web portal and its API were in scope. Our £2,400 test covers both, and the included retest gives you the closure evidence they need.

Do you have an office in Sheffield?

No. CyberFortify has no Sheffield office. Web application and API tests run remotely, which is how almost all application pentests are delivered. Kick-off, critical alerts and the report walkthrough happen in UK working hours, and the price is the same £2,400 flat.

Why is it cheaper than UK day-rate firms?

Our AI Pentest Agent covers the breadth of your app: mapping every page and API route and checking the known issues. That frees our CREST-accredited engineers for exploitation, access control and business logic. Fewer billable days means one flat fee instead of a day rate. Every finding is still validated by a person before it reaches your report.

Is CyberFortify really CREST accredited?

Yes. CyberFortify is a CREST member company, accredited for Penetration Testing and AI-Enabled Penetration Testing, and a signatory of the CREST AI Charter. You can check our listing on the CREST Marketplace before you book.

What counts as one application?

One web product your users sign in to, plus the API behind it. Size doesn’t change the price: a large SaaS platform with many roles is still £2,400. A mobile app, an internal network or a cloud configuration review is a separate scope, and we’ll quote it on the call if you need it.

Is the price really fixed?

Yes. £2,400 per application, agreed on the scoping call before testing starts. The retest of your fixes is included. There are no day rates, so the invoice doesn’t grow if testing takes longer.

Is Cyber Essentials Plus the same as a penetration test?

No. Cyber Essentials Plus is a certification with a hands-on check of five basic controls. It doesn’t test your application for vulnerabilities the way a penetration test does.

Are you a CHECK company?

No. CHECK is the NCSC scheme for UK government and critical national infrastructure systems. If your contract names CHECK, you need a CHECK company, and we’ll tell you so on the call. CyberFortify is CREST accredited.

How fast can you start?

Testing usually starts within a week of the scoping call, and most reports are ready in four to seven working days. Criticals are flagged within 24 hours of discovery.

What happens to our data?

CyberFortify works under ISO 27001 certified processes. Client data from the engagement is disposed of afterwards, as set out in the statement of work. Every assignment carries professional liability insurance and Koop cyber insurance.

Already have your scope written up? Send full scope details

A CREST pentest in Sheffield for £2,400.
Booked this week.

Your first call is with Usama Gul, the founder and the engineer who leads your test. You’ll leave with a confirmed scope and a start date.