Outsourced ISO 27001 Internal Audit Services
Satisfy Clause 9.2 without the consulting bloat.
You cannot audit your own work. We act as your independent, highly technical audit engine to stress-test your ISMS, verify your Annex A controls, and deliver the exact board-ready report required to pass your UKAS-accredited certification.


The Impartiality Rule: Why you can’t audit yourself.
ISO 27001 standard Clause 9.2 dictates that internal auditors must be objective and impartial. If your CTO, engineering team, or compliance manager built your Information Security Management System (ISMS), they are strictly forbidden from auditing it.
Led by Stuart Barker, a software engineer and certified Lead Auditor with decades of experience, 271 solves this exact problem for tech companies. We do not sell you endless consulting retainers. We step in as your surgical, third-party audit team.
We review your Statement of Applicability (SoA), test your evidence, log the non-conformities, and hand you a compliant audit report so you can pass your external certification audit with absolute certainty.
The Internal Audit Process
Four precise steps. Zero wasted time. 100% remote execution.
1. The Diagnostic Review
We conduct an asynchronous deep-dive into your ISMS framework, policies, risk register, and Statement of Applicability to ensure structural alignment with ISO 27001:2022.
2. Evidence & Control Testing
We sample your live operational evidence. Whether you manage compliance manually or use tools like Vanta and Drata, we verify that your technical controls are actually functioning.
3. The Deliverables
You receive a formalized Internal Audit Report and a detailed Non-Conformity Log. We document the exact “bugs” in your compliance posture so you can patch them.
4. Management Review Prep
We prepare the agenda and inputs for your mandatory Management Review meeting, officially handing you over to your external certification body ready to pass.
Transparent, Fixed-Price Audits
No hidden retainer fees. Priced strictly by your organizational complexity and headcount.
Seed
1 – 15 Employees
From £2,495
- 100% Remote Audit
- ISMS Document Review
- Auditor-Ready Report
- Management Review Prep
Series A
16 – 50 Employees
From £3,995
- 100% Remote Audit
- ISMS Document Review
- Deep-Dive Control Testing
- Auditor-Ready Report
- Management Review Prep
Scale-Up
51+ Employees
From £5,995
- 100% Remote Audit
- Complex Scope Verification
- Multi-System Control Testing
- Auditor-Ready Report
- Management Review Prep
Frequently Asked Questions
What deliverables do I get from the 271 internal audit?
You receive a formal ISO 27001 Internal Audit Report, a detailed Non-Conformity Log with root cause analysis, and a structured agenda for your Management Review. These are the exact documents your external auditor will ask for on day one of your Stage 2 audit.
Can we use our own GRC software (Vanta, Drata, etc.)?
Yes. Automated compliance platforms are great for evidence collection, but ISO 27001 standard rules require a human audit to verify subjective controls. You log directly into your Vanta, Drata, or Hicomply environment, show the audit the evidence within the tool, and we provide the human verification layer.
What happens if you find non-conformities?
That is exactly why you hire us. Finding non-conformities during an internal audit is a success, not a failure. We identify the broken controls so you can patch them internally before the UKAS auditor arrives, ensuring your actual certification audit is completely frictionless.
Legal Disclaimer and Non-Affiliation Notice
271 (accessible via iso27001.com) operates as an independent, standalone digital reference platform and outsourced internal auditing resource.
No Affiliation: This website, its content, and the “271” brand vertical are entirely independent. They are not affiliated with, sponsored by, endorsed by, or associated in any manner with the International Organization for Standardization (ISO) or the International Electrotechnical Commission (IEC).
No Professional Advice: The materials and interpretations provided on this site are for general educational and reference purposes only. They do not constitute formal legal advice. Organizations seeking official certification must consult an accredited, independent certification body.