Speeki Guardian® Assurance of all sustainability reports and statements

Wooden blocks spelling the word 'TRUST' with a blurred bouquet of blue and white flowers on the left and some blue flower petals on the right on a white background.

Assurance of your sustainability report or statements is expected.

Mandatory assurance of sustainability reports is essential to ensure the credibility, comparability and reliability stakeholders need for decision-making, reflecting the principle that underpins financial reporting regulation.

Without it, sustainability disclosures remain unverified management claims, open to greenwashing, selective disclosure and optimistic bias, which weakens investor confidence, distorts capital allocation and disadvantages organisations that invest in robust verification while competitors make unsupported claims without consequence.

Speeki Guardian® covers the full spectrum of sustainability assurance

Sustainability report and regulatory disclosure assurance

  • Speeki Guardian® provides independent third-party assurance of voluntary sustainability reports and mandatory regulatory disclosures, including: 

    • GRI Standards 

    • CSRD and ESRS 

    • IFRS S1 and S2 

    • SEC climate disclosure requirements 

    • UK sustainability reporting mandates 

    • Singapore climate requirements 

    • other applicable frameworks and standards. 

  • Our assurance engagements examine reporting quality and regulatory alignment, including: 

    • accuracy of environmental, social and governance data 

    • completeness against framework or regulatory requirements 

    • materiality determination including double materiality under CSRD 

    • stakeholder engagement processes 

    • data collection systems and calculation methodologies 

    • internal controls over sustainability data 

    • assurance opinions aligned with ISSA 5000 and AA1000AS v3.

  • As sustainability reporting becomes mandatory and subject to enforcement, independent assurance delivers: 

    • reduced regulatory compliance risk 

    • legal defensibility under scrutiny or enforcement 

    • preparedness for evolving assurance requirements 

    • credible evidence of good faith disclosure efforts 

    • verified ESG information for investors and stakeholders 

    • protection against greenwashing allegations and reputational damage.

  • Speeki Guardian® provides independent verification of standalone sustainability statements and claims published outside comprehensive reports, including: 

    • website sustainability pages 

    • marketing brochures 

    • product packaging claims 

    • annual report ESG sections 

    • investor presentations 

    • corporate responsibility statements 

    • public commitments and pledges 

    • other short-form sustainability communications.

  • Our assurance examines the accuracy and substantiation of published sustainability claims, including: 

    • environmental performance claims 

    • social impact claims 

    • governance practice claims 

    • product sustainability attributes 

    • appropriate boundaries, timeframes and methodologies 

    • consistency with underlying data and management systems 

    • identification of overstatements or unsubstantiated assertions 

    • assurance opinions on specific statements or communications.

  • As green claims legislation increases regulatory scrutiny of sustainability marketing, independent verification delivers: 

    • substantiation evidence meeting regulatory requirements 

    • protection against enforcement actions and penalties 

    • reduced greenwashing risk 

    • credible differentiation from unverified claims 

    • confidence in publishing sustainability credentials 

    • cost-effective credibility for claims relied upon by stakeholders.

Sustainability statement and claims assurance

  • Speeki Guardian® provides independent verification of sustainability reporting linked to sustainable finance instruments, including: 

    • green bonds 

    • sustainability bonds 

    • sustainability-linked loans 

    • transition bonds 

    • ESG funds 

    • other sustainability-linked financial instruments.

  • Our assurance examines whether sustainability-linked financial instruments meet reporting and framework requirements, including: 

    • allocation of proceeds to eligible projects 

    • achievement of sustainability performance targets and KPIs 

    • impact reporting on environmental or social outcomes 

    • compliance with ICMA Green Bond Principles 

    • compliance with Loan Market Association Green Loan Principles 

    • compliance with Climate Bonds Standard requirements 

    • independent confirmation of ongoing sustainability performance.

  • As investor scrutiny and regulatory expectations increase, independent assurance delivers: 

    • protection against greenwashing risk 

    • validation of sustainability-linked financial terms 

    • strengthened investor confidence 

    • support for access to ESG-focused capital 

    • protection of reputation under stakeholder scrutiny 

    • alignment with emerging requirements such as the EU Green Bond Standard.

  • Speeki Guardian® provides independent verification of climate-related claims, including: 

    • carbon neutrality claims 

    • net zero commitments 

    • climate positive claims 

    • climate-related marketing statements 

    • climate disclosures subject to green claims legislation. 

  • Our verification examines whether climate claims are substantiated and aligned with recognised standards, including: 

    • alignment with standards such as PAS 2060 

    • completeness and accuracy of GHG inventories 

    • boundary setting and Scope 3 inclusion 

    • quality and additionality of carbon offsets 

    • alignment of reduction targets with science-based pathways 

    • substantiation of claims in marketing and disclosures 

    • robustness of carbon accounting methodologies. 

  • As regulatory scrutiny of environmental claims increases, independent verification delivers: 

    • legal defensibility under green claims legislation 

    • reduced greenwashing risk 

    • protection against regulatory penalties 

    • protection of organisational reputation 

    • increased stakeholder confidence in climate commitments 

    • credible differentiation in sustainability-focused markets.

Green finance and sustainable investment reporting assurance

  • Speeki Guardian® provides independent verification of corrected or updated sustainability disclosures in response to challenges, including: 

    • greenwashing allegations 

    • regulatory investigations 

    • media scrutiny 

    • activist campaigns 

    • stakeholder challenges to sustainability claims.

  • Our crisis response assurance examines challenged disclosures and remediation actions, including: 

    • investigation of disputed claims or disclosures 

    • identification of inaccuracies or overstatements 

    • verification of corrected or restated information 

    • assessment of underlying data quality or control deficiencies 

    • assurance opinions on revised disclosures 

    • rapid-response verification where immediate credibility is required 

    • remediation programmes addressing systemic disclosure issues. 

  • When disclosure accuracy is questioned, independent verification delivers: 

    • credible evidence of corrective action 

    • support during regulatory enforcement or litigation 

    • reassurance to investors and stakeholders 

    • rebuilding of trust following reputational damage 

    • prevention of recurring disclosure failures 

    • independent oversight where required by settlements or consent orders.

Carbon neutrality and climate claims verification

  • Speeki Guardian® verifies the ESG data and methodologies submitted to external assessment bodies, including: 

    • ESG rating agencies 

    • sustainability indices 

    • industry rankings 

    • award programmes 

    • data submissions to MSCI, Sustainalytics, CDP and ISS ESG. 

  • Our verification examines the accuracy, completeness and consistency of ESG submissions, including: 

    • alignment with source documentation and public disclosures 

    • consistency with regulatory filings and internal systems 

    • identification of data gaps or errors 

    • accuracy of qualitative responses 

    • fair representation of policies, practices and performance 

    • defensible documentation supporting submissions. 

  • As ESG ratings influence capital access and market perception, independent verification delivers: 

    • prevention of rating impacts from data quality issues 

    • strengthened internal ESG data management 

    • increased confidence from rating agencies 

    • protection against avoidable rating downgrades 

    • protection of access to capital and procurement opportunities 

    • reduced reputational risk from inaccurate submissions.

ESG rating and rankings data verification

Crisis response and disclosure remediation assurance

Independent assurance delivered through Speeki Guardian® is subject to a complex set of regulatory and professional requirements. We meet them.

Cover page of a document titled "Final Pronouncement December 2020" on international quality management standards, with the IAASB logo at the bottom right.
Cover page of a document titled 'Final Pronouncement' for ISSA 5000, related to sustainability assurance standards, dated November 2024, published by IAASB.
Coverage document titled "AA 1000 Assurance Standard v3" by AccountAbility, featuring a geometric pattern background and a teal and white color scheme.
Cover of the "Handbook of International Code of Ethics for Professional Accountants" by IESBA, 2025 edition, volume 2, with the IESBA logo and IFAC copyright symbol.

Sustainability report assurance by Speeki

Whichever standard you are working with Speeki Guardian® can help certify that it meets the standards.

Speeki supports you through the full cycle of assurance of sustainability reports and statements and monitoring solutions.

We know that sustainability reporting and assurance can be complex.

Let us help.

Click on Nicole AI to learn more or reach out to our Team.
A man in a blue suit and white shirt, wearing glasses and a watch, sitting on a chair in a room with blue walls and a lamp in the background.
Professional woman with long wavy hair wearing a dark blazer, smiling, against gray background.
A woman with long light brown hair smiling at the camera, wearing a black top, in an indoor setting.