Sustainability Assurance with Impact:
A Step-by-Step Approach That Builds Confidence
At FBRH Consultants, we help you publish a GRI Standards-based sustainability report you can stand behind. The FBRH Progressive Assurance Options assurance approach gives you the flexibility to start small and scale up — at your own pace — while building credibility and trust with stakeholders.
Why FBRH?

- ✓ Demonstrate GRI compliance clearly and confidently
- ✓ Apply the globally recognised ISAE 3000 standard for assurance
- ✓ Ensure your report focuses on what matters most — based on material impacts, risks, and opportunities across your value chain
- ✓ Deliver reliable, stakeholder-trusted reports backed by ISO 9001-certified processes
- ✓ GRI Certified Training Partner and IEMA Approved Training Centre
We combine international best practice with over two decades of deep expertise to offer rigorous, accessible assurance that delivers clarity, credibility, and meaningful impact.
What Our Clients Say

“The training sessions enabled me to take our GRI report to the next level. Simon is knowledgeable and very helpful – an excellent teacher. I truly recommend this course by FBRH!”— Sara Hauge, Vinmonopolet
This testimonial reflects the value of our assurance process — not just training, but guiding organisations to strengthen their GRI reporting with clarity and confidence.
The FBRH Progressive Assurance Options

Foundation Review: GRI Standards Alignment
from £2,800 + VAT
- Review your report structure and disclosures against the GRI 2021 Standards
- Ensure your GRI Content Index is accurate and complete
- Provide clear, actionable feedback to close gaps
Value to you:
- ✓ Establishes a strong, credible reporting foundation

Narrative Check: Verify Key Qualitative Claims
- Cross-check stakeholder engagement, policy statements, governance disclosures and more
- Request and review documentation to substantiate your claims
Value to you:
- ✓ Builds trust by aligning report narratives with evidence.

Data Validation: Sample KPI Data Checks
- Validate a small set of key performance indicators (e.g. diversity, training hours)
- Confirm definitions, calculation logic, and data consistency
Value to you:
- ✓ Strengthens credibility with verifiable metrics.

Governance Deep Dive: Internal Process & Controls Review
- Interview your sustainability data owners
- Review data collection and approval systems
Value to you:
- ✓ Demonstrates strong governance and audit readiness.
More Reasons to Work With FBRH
Secure Assurance Platform
Streamline your ESG / Sustainability assurance process with our proprietary secure platform easy commenting, fast filtering, and exportable reports (PDF/Excel).

Management Report
Our detailed feedback helps you improve with every reporting cycle: what works, what to fix, and where to go next.

The Spirit of Sustainability: Creating Value
We believe the GRI Standards offer the clearest and most practical path to meeting the spirit of ESG / Sustainability. Applying materiality enables your organisation to identify significant impacts along the value chain and take meaningful, balanced action that supports the business, stakeholders and the planet.

Frequently Asked Questions (FAQ)
- Q1: What is sustainability assurance?
- Sustainability assurance is an independent review of a sustainability report to verify that disclosures are accurate, credible, and aligned with recognised standards such as GRI and ISAE 3000.
- Q2: What does FBRH check in the Foundation Review?
- We review your report for full alignment with GRI Standards, including a complete and accurate GRI Content Index and consistency across disclosures.
- Q3: Is ISAE 3000 applicable for sustainability assurance?
- Yes. ISAE 3000 is the internationally accepted standard for non-financial assurance engagements and provides the basis for reliable and professional sustainability assurance.
- Q4: What makes FBRH different?
- We offer the FBRH Progressive Assurance Approach, with over two decades of expertise, ISO 9001-certified quality, and a secure platform to streamline the process. FBRH is a GRI Certified Training Partner and IEMA Approved Training Centre.
- Q5: Do I need to complete all four options?
- No. You can start with the option that best fits your current needs and expand as your reporting maturity grows. You may also choose to include all assurance options if desired.
Ready to strengthen your report and build trust?
Book a free consultation to explore which assurance option is right for you.
Disclaimer:
The information provided on this page is for general informational purposes only and does not constitute professional advice or a formal assurance engagement. FBRH Consultants Ltd provides assurance services based on the scope agreed with each client. All services are subject to terms of engagement. While we aim to ensure accuracy, we accept no liability for reliance placed on content from this website without written confirmation via a signed agreement.