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Standards and reporting

GRI Reporting Consultants

A GRI consultancy brief should define the reporting claim, evidence and deliverables the organisation can inspect and retain.

What should a GRI reporting engagement deliver?

GRI 1 sets different conditions for reporting in accordance and with reference, so the engagement should identify the intended reporting basis before defining deliverables GRI 1, section 3 and with-reference requirements.

Specify the outputRequirements and evidence

Module 01 / 03

Basis

State the intended reporting claim.

Read the detailed guidance and evidence

A useful consultancy brief describes what the organisation will receive and how its reviewers will inspect the result rather than asking for a GRI-certified report.

GRI’s copyright policy states that it is not an auditor, assessor, certifier or verifier of sustainability reports GRI copyright policy.

Read GRI Standards for the full system and the standards hub for other reporting destinations before commissioning a specific engagement.

The brief should state whether materiality work, data preparation, drafting, index review and repeat-cycle handover are included.

What belongs in the initial scope?

This editorial brief makes the intended work and company inputs explicit.

Suggested engagement fields rather than a prescribed GRI consultancy contract.
Evidence questionReview approachWhat to avoid
Reporting basisName the intended claim and publication contextAn undefined GRI compliance project
OrganisationIdentify entities, activities and reporting periodA group report based only on headquarters records
Work includedList topic review, data, narrative, index and review tasksAssuming every task is included in drafting
Client inputName source owners and approval responsibilitiesAssuming the adviser can invent absent evidence

How should material-topic work be specified?

GRI 3 identifies material topics through significant impacts, with guidance on context, impact identification, significance and prioritisation GRI 3, section 1.

Request the reasoningRequirements and evidence

Module 01 / 03

Context

Explain activities and business relationships.

Read the detailed guidance and evidence

In an original fictional case, a museum-services group commissions a review of materials use and temporary installation work before drafting its first planned GRI report.

The brief requests an evidence-led topic determination rather than a workshop that ends with an unexplained ranking of popular ESG themes.

Human-rights questions may require meaningful consultation and evidence about affected groups, as described in the UN Guiding Principles, rather than only management views UN Guiding Principles 17–18.

The adviser’s deliverable should show assumptions, unresolved evidence and the company’s acceptance of the rationale, without promising a predetermined topic list.

How can the materiality deliverable be inspected?

These editorial tests distinguish a defensible topic record from a presentation summary.

Original fictional acceptance criteria for the museum-services engagement.
Evidence questionReview approachWhat to avoid
ContextRelevant activities, relationships and stakeholders are describedA generic sector paragraph
Impact descriptionThe affected subject and effect are identifiableOnly broad labels such as people
SignificanceEvidence supports the applicable criteriaA score with no explanation
DecisionSelection and uncertainty are reviewableA final list with no rationale

What should the evidence workstream cover?

GRI 2 covers organisational context, activities, workers, governance, policies and engagement, so the data brief needs narrative and decision records as well as metrics GRI 2, introduction.

Define the handoversRequirements and evidence

Module 01 / 03

Source owners

Identify who supplies each record.

Read the detailed guidance and evidence

The fictional museum-services group holds installation-work records in project files and policy records centrally, with different people able to explain their meaning.

Its brief therefore names the contributor and reviewer for each evidence stream rather than assuming the consultant’s access to a shared folder is sufficient.

GRI 3 also asks how material topics are managed, so a topic’s policy, actions and effectiveness information need a defined evidence handover GRI 3, disclosure 3-3.

Where records are unavailable, the engagement should preserve the gap and apply the actual reporting rules rather than silently manufacturing a complete narrative.

Which deliverable boundaries should be explicit?

This editorial allocation prevents a drafting engagement from implying unperformed investigation.

Suggested evidence responsibilities, not a statement about a particular provider’s service.
Evidence questionReview approachWhat to avoid
Company recordsState what the company supplies and explainsAn assumption that all records are independently verified
Adviser analysisName the evidence and interpretation work includedA broad assurance implication
Data gapsIdentify missing information and proposed treatmentUnsupported zeroes or completed statuses
Company reviewName who accepts facts and judgementsA report approved only for style

What should the content-index work include?

GRI 1’s content-index requirements include disclosure locations and relevant sector and omission information, making the index a substantive deliverable rather than a decorative appendix GRI 1, Requirements 6–7.

Connect the reportRequirements and evidence

Module 01 / 03

Locations

Point to the actual published information.

Read the detailed guidance and evidence

For applicable Sector Standards, the organisation reviews likely material topics and explains relevant topics judged not material rather than assuming the sector list decides the outcome GRI 1, Requirements 3 and 7 GRI Sector Program.

The fictional museum-services brief asks the adviser to document the applicability review without forcing an unrelated Sector Standard into the project.

The acceptance test follows selected index entries into the actual draft and checks that the linked evidence supports the disclosure.

A completed index does not itself establish that every condition for an in-accordance claim has been met.

What should an index review challenge?

These editorial checks use the intended report rather than only the adviser’s workbook.

Editorial acceptance tests; actual requirements depend on the intended GRI reporting claim.
Evidence questionReview approachWhat to avoid
LocationCan the reviewer find the named information?A broad link to the entire annual report
Required informationDoes the cited passage answer the disclosure?A heading used as evidence of content
OmissionIs the treatment permitted and explained?A universal skip option
UpdateDo references still work after the draft changes?An index accepted before final pagination

Which edition and publication date should the brief use?

GRI 103: Energy 2025 applies to reports or other materials published from 1 January 2027, so the planned publication date can affect the relevant source set GRI 103, effective date.

Control the editionRequirements and evidence

Module 01 / 03

Publication

Record when the report is intended to appear.

Read the detailed guidance and evidence

GRI’s climate-and-energy project introduces revised topic content and supporting resources, which makes an edition review more useful than a generic promise to use the latest framework GRI climate and energy project.

The fictional group asks its adviser to state which versions the draft uses and to identify any review needed if publication moves into a different effective-date window.

The brief should also say whether version updates and related index revisions are included in the engagement or require a separately agreed change.

No assumption is made that every software library, older workbook or previous report already contains the newly applicable content.

What should happen if the scope changes?

This editorial change record makes extra work and reporting consequences reviewable.

Suggested scope-control questions with no invented fees or provider terms.
Evidence questionReview approachWhat to avoid
TriggerNew evidence, publication timing or activitiesAn unexplained request to refresh the report
Affected workTopics, data, narrative, index or reviewAssuming only the cover date changes
ResponsibilityName client input and adviser deliverableAn unassigned information gap
AcceptanceRecord the agreed revision and remaining limitsA silent change to the original scope

How should the proposed reporting claim be reviewed?

An in-accordance claim requires all nine GRI 1 requirements, while the with-reference route has separate conditions, and neither is GRI certification GRI 1, section 3 and with-reference requirements GRI copyright policy.

Review the exact wordingRequirements and evidence

Module 01 / 03

Conditions

Check the intended claim requirements.

Read the detailed guidance and evidence

The fictional group should not be told that paying for advice, completing a workshop or receiving a content index automatically permits the stronger claim.

A claim review can be a defined engagement deliverable, but its scope and evidence need to be stated rather than implied by a marketing badge.

UK SRS S1 has a different financial-information purpose and its own compliance conditions, so a GRI engagement does not automatically complete another reporting basis UK SRS S1, objective and paragraphs 72–73A.

If independent assurance is sought, treat it as a separate defined question about the actual information and conclusion rather than assuming it is included in preparation.

What should be clarified in competing proposals?

This editorial proposal comparison tests equivalent work without ranking providers.

Proposal-scope questions only; no prices, rankings or service promises.
Evidence questionReview approachWhat to avoid
Topic assessmentIdentify evidence collection and reasoning includedA workshop title as the whole scope
Draft and indexName outputs, revisions and accepted source versionsAn undefined compliant report
ReviewDescribe factual, technical and claim checksAn unqualified assurance implication
HandoverSpecify usable records, instructions and exclusionsA final PDF as the only deliverable

What should the organisation retain for the next cycle?

GRI’s taxonomy offers digital reporting routes and outputs, while GRI 1 sets the reporting conditions, so digital handover and substantive review remain distinct GRI Sustainability Taxonomy GRI 1, section 3.

Keep the work usableRequirements and evidence

Module 01 / 03

Evidence

Receive the source and decision references.

Read the detailed guidance and evidence

The fictional museum-services group asks an internal reviewer to update one source reference and follow the change through the accepted topic record and draft index.

If structured digital reporting is included, the engagement should identify the promised output and relevant content version rather than implying that GRI universally requires XBRL filing.

Use GRI reporting software for the platform-specific export tests and software versus consultant for allocating the ongoing work.

The final acceptance record should state what was delivered, what remains unresolved and who owns the next cycle, without certifying future performance.

The ESG questionnaire guide turns a broad information request into defined answers, supporting records and unresolved questions.

The GRI materiality guide follows impact evidence into the selection and management of material topics on the stated GRI basis.

How can the GRI engagement be commissioned and reviewed?

This is an editorial preparation sequence rather than a prescribed assessment method or a conformity checklist.

  1. 101

    Define the intended claim

    Name the reporting basis, organisation, period and publication context.
  2. 202

    Specify the evidence

    Identify company records, contributor responsibilities and known gaps.
  3. 303

    Commission topic reasoning

    Request context, impact significance and documented topic decisions.
  4. 404

    Review sector applicability

    Use relevant Sector Standards without replacing the organisation’s assessment.
  5. 505

    Plan the disclosures

    Connect material topics, management information and required organisational context.
  6. 606

    Build the index

    Retain disclosure locations and relevant omission and sector explanations.
  7. 707

    Control changes

    Review publication timing, source versions and agreed scope revisions.
  8. 808

    Review the claim

    Check the actual conditions and distinguish preparation from assurance.
  9. 909

    Accept the handover

    Receive editable outputs, evidence references, instructions and unresolved limitations.

Frequently asked

Questions people ask

What should a GRI reporting consultant deliver?

An editorial brief can define topic reasoning, evidence work, draft disclosures, content index, version and claim review, plus an editable handover with clear exclusions.

Can a consultant provide a GRI-certified report?

GRI says it is not an auditor, assessor, certifier or verifier of sustainability reports, so that phrase should not replace the actual reporting claim.

Is a materiality workshop enough?

The engagement needs evidence and reasoning for the material-topic decisions rather than only a workshop ranking.

Does every company need a Sector Standard?

The applicability review depends on the sectors covered by published standards, and relevant sector topics still need the organisation’s own assessment.

Should publication timing be in the brief?

Yes, GRI 103’s effective date concerns reports or materials published from 1 January 2027, illustrating why the planned publication date matters.

What should be retained when the engagement ends?

An editorial handover can require editable disclosures and index, evidence references, topic reasoning, source versions, review decisions, instructions and unresolved limitations.

Sources

Primary sources

Primary provisions and official owner guidance checked on 26 October 2026; historical and draft resources are labelled in the guide.

Checked against 10 sources fromGlobal Reporting InitiativeOHCHRDepartment for Business and Trade
  1. Global Reporting Initiative
    GRI 1: Foundation 2021
  2. Global Reporting Initiative
    GRI 2: General Disclosures 2021
  3. Global Reporting Initiative
    GRI 3: Material Topics 2021
  4. Global Reporting Initiative
    GRI Sector Program
  5. Global Reporting Initiative
    GRI trademarks and copyright policy
  6. Global Reporting Initiative
    GRI Sustainability Taxonomy
  7. Global Reporting Initiative
    GRI 103: Energy 2025, effective date
  8. Global Reporting Initiative
    Climate Change and Energy Standards development
  9. OHCHR
    UN Guiding Principles on Business and Human Rights, Principles 17–18
  10. Department for Business and Trade
    UK SRS S1, February 2026
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