CREST Accredited by CREST G2 Rated 4.8/5 on G2

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

For Chelmsford's electronics, defence-supplier and public sector software teams. Retest included.

Get your £2,400 quote Book a scoping call
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 Chelmsford Teams

East of England

Chelmsford is where Marconi opened the world's first wireless factory, and electronics and engineering have stayed part of the city ever since. Firms here design sensors, imaging and communications equipment, much of it sold into defence, space and industrial markets. As the county town, Chelmsford is also home to Essex County Council, and Anglia Ruskin University has a campus here.

Engineering firms now ship software alongside hardware: customer portals, device management dashboards and licensing services. Defence primes and public bodies scrutinise those systems before they connect anything. An accredited pentest is one of the first pieces of evidence asked for. Where a contract needs CHECK, we will say so plainly.

What Chelmsford Teams Bring Us to Test

Electronics and instrumentation

Manufacturers increasingly run web portals for device registration, firmware downloads, calibration records and support. Industrial and scientific customers ask for evidence that these portals cannot be used to reach devices or tamper with updates.

What we focus onFirmware and software download controls, device registration and ownership checks, licence key generation, customer separation in support portals, and server-side parsing of uploaded configuration or design files.

Defence and security supply chain

Smaller suppliers to defence primes must show cyber maturity during onboarding and contract renewal. Their web applications, such as supplier portals and secure file exchange tools, are often part of what the prime assesses.

What we focus onSingle sign-on and SAML configuration, file exchange permissions, audit logging, segregation between programmes or customers, and information disclosure through error messages or shared document metadata.

Local public services

Suppliers building citizen-facing services for councils, from permit applications to adult social care referrals, must satisfy public sector security requirements. Councils expect independent testing before launch and after significant changes.

What we focus onCitizen account security, application and case record access, rate limiting on lookups, file evidence uploads, and the boundary between public forms and the staff case management side.

What We Often Find

Engineering-led software in Chelmsford is usually well built at the device level; the web layer added later is where our testers tend to find problems.

Unsigned SAML assertions accepted

Single sign-on set up quickly for a defence customer may not check assertion signatures properly. A forged response can then log an attacker in as any user, including administrators.

Design files parsed unsafely

Portals that accept XML-based configuration or design files can be vulnerable to external entity attacks. A crafted file can read server files or make requests to internal systems.

Stack traces in production

Verbose errors left on in production reveal framework versions, internal hostnames and file paths. In a supplier assessment this is an easy finding that signals weak release controls.

No rate limiting on public lookups

Address, reference or case number lookups on citizen services often allow unlimited requests. Automated queries can confirm whether people have open applications, leaking personal information at scale.

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 Chelmsford Buyers Ask For

JOSCAR supplier registration

Aerospace and defence buyers use JOSCAR to collect supplier information, including cyber questions. A dated CREST report gives your answers substance and is easy to attach when primes ask for evidence.

Cyber Assessment Framework for councils

Local government is adopting the NCSC Cyber Assessment Framework. Council suppliers can use pentest results as evidence under the vulnerability management and testing outcomes councils assess.

CHECK requirements

Some government and defence contracts specify an NCSC CHECK company. CyberFortify is not one. If your contract says CHECK, use a CHECK provider; we can test the systems that are out of that scope.

Before you book.

Our defence customer asked for a pentest. Can CyberFortify do it?

Check the contract wording first. If it requires a CHECK company, or the system handles classified information, we cannot do that work and will tell you so. If it asks for an independent or CREST-accredited test of a commercial web application, such as your supplier portal, we can.

Our device portal lets customers download firmware. Do you test the firmware itself?

No. The £2,400 test covers the web application and APIs, including who can download firmware and whether update packages can be tampered with in transit or storage. Reverse engineering the firmware or testing the hardware is a separate specialist engagement.

Our council contract requires testing after every major release. How should we plan for that?

Agree with the council what counts as a major release, such as new citizen journeys, authentication changes or a re-platform. Each full test of the application is £2,400 with a retest included. Booking ahead of a release date lets the report land before go-live, which is usually when the council wants it.

Do you have an office in Chelmsford?

No. CyberFortify has no Chelmsford 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

Also Testing Near Chelmsford

All UK locations · UK CREST penetration testing

A CREST pentest in Chelmsford 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.

Get your £2,400 quote Book a scoping call

Prices exclude VAT. Price comparisons use published UK guides; individual firms’ quotes vary.