Your sustainability report is only as credible as the data behind it — and the platform that connects both to your assurance provider.
Speeki Engage® | ESG & Sustainability Assurance platform is the technology platform that powers every Speeki Guardian® assurance engagement — ingesting your sustainability data, mapping your report against applicable frameworks, connecting Nicole® AI to your evidence, and delivering limited or reasonable assurance on your sustainability disclosures with speed and precision that traditional assurance cannot match.
Scott Lane, CEO and Founder, and Lead Auditor
Why is another platform for assurance necessary?
Publishing a sustainability report is no longer enough.
Regulators, investors, and stakeholders increasingly require independent assurance that what is disclosed is accurate, complete, and compliant with the reporting standards it claims to follow.
But traditional sustainability assurance, manual, labour-intensive, document-heavy is slow, expensive, and poorly suited to the scale and complexity of modern ESG disclosure obligations.
Speeki Guardian® changes that model entirely.
Powered by Speeki Engage as the data and engagement platform, and Nicole® as the AI assurance engine working within it, Speeki Guardian® delivers technology-enabled assurance on sustainability statements prepared under GRI, ISSB, IFRS S1/S2, CSRD/ESRS, and other applicable frameworks — at a speed, cost, and quality level that the Big Four labour pyramid simply cannot replicate.
What is special about Speeki Guardian® and why does it need a platform?
Speeki Guardian® is Speeki's flagship sustainability reporting assurance service delivering independent limited and reasonable assurance on sustainability statements and ESG disclosures prepared by organisations under any applicable reporting framework.
Engagements are conducted in accordance with ISSA 5000, the new global sustainability assurance standard, and AA1000AS v3, providing rigorous, internationally recognised assurance opinions and conclusions that satisfy regulatory requirements, investor expectations, and stakeholder scrutiny.
What makes Speeki Guardian® fundamentally different from traditional sustainability assurance is not just the expertise of the team, it is the technology architecture that the entire engagement runs through.
Every Guardian engagement operates inside Speeki Engage, transforming what is typically a manual, bilateral, document-exchange process into a structured, data-driven, AI-assisted assurance engagement that is faster, more thorough, and significantly more cost-effective than any comparable service in the market.
Frameworks supported by Speeki Guardian®:
GRI Standards — Universal, Sector, and Topic Standards
ISSB Standards — IFRS S1 and IFRS S2
CSRD/ESRS — full European Sustainability Reporting Standards suite
SASB Standards
TCFD and TNFD recommendations
Regional and national frameworks — Singapore, Malaysia, Australia, Canada, and others
Integrated and combined reporting frameworks
Assurance levels delivered:
Limited assurance — review-level procedures, assurance conclusion
Reasonable assurance — audit-level procedures, assurance opinion
Why Sustainability Reports Need Platform-Enabled Assurance
The credibility crisis in ESG disclosure is well documented.
Organisations publish sustainability reports that claim compliance with GRI, ISSB, or CSRD — but the data behind those disclosures is fragmented across systems, methodologies are inconsistently applied, framework mapping is incomplete, and the evidence that would allow an assurance provider to verify the claims is scattered across spreadsheets, emails, and shared drives.
Traditional assurance processes which rely on document requests, manual review, and bilateral correspondence are poorly designed to resolve that fragmentation efficiently. They take too long, cost too much, and still leave gaps that a well-structured technology-enabled engagement would close.
Speeki Engage® | ESG & Sustainability Assurance platform solves this structurally. By bringing your sustainability report, your underlying data, your evidence base, and your Speeki assurance team into a single platform environment, the engagement becomes a continuous, structured, AI-assisted process rather than a periodic manual exercise. Data is ingested directly from your systems. Framework mapping is automated and gap-analysed. Nicole® AI reviews evidence, identifies inconsistencies, and surfaces issues for practitioner judgment. The result is an assurance engagement that is more thorough, more efficient, and more defensible than anything a traditional approach produces.
What platform-enabled assurance solves that traditional assurance cannot:
Fragmented data held across multiple internal systems, spreadsheets, and calculation tools — Speeki Engage® | ESG & Sustainability Assurance platform ingests and centralises it
Manual framework mapping that is incomplete, inconsistent, or undocumented — Speeki Engage® | ESG & Sustainability Assurance platform automates and records it
Evidence requests that generate weeks of back-and-forth between client and auditor — Speeki Engage® | ESG & Sustainability Assurance platform structures and tracks them in real time
Limited ability for assurance practitioners to interrogate large data volumes manually — Nicole® AI processes them systematically
Slow, expensive engagements that deter organisations from obtaining the assurance level they actually need — Engage reduces time and cost without compromising depth
What’s more, it is a free to use the Speeki Engage® | ESG & Sustainability Assurance platform to support your Speeki Guardian engagement.
How Speeki Engage® | ESG & Sustainability Assurance platform supports Speeki Guardian®.
Sustainability Report Ingestion and Framework Mapping
The engagement begins with your sustainability report whether in draft or final form being ingested into the Speeki Engage® | ESG & Sustainability Assurance platform.
The platform maps every disclosure, metric, and statement in your report against the requirements of the applicable reporting frameworks you have claimed compliance with.
GRI content index requirements, ISSB S1 and S2 disclosure requirements, ESRS topic-level requirements, SASB industry metrics each is mapped systematically, with gaps, incomplete disclosures, and framework misalignments identified and flagged before the substantive assurance work begins.
This automated mapping layer alone replaces weeks of manual framework analysis and gives your Speeki engagement team a structured, evidence-linked view of your report from day one.
Data Ingestion and Connection to Source Systems
Sustainability data is never held in one place. Engage connects to your data lakes, internal reporting systems, ERP platforms, environmental monitoring tools, HR systems, and other data sources through APIs and direct integrations pulling source data into the platform and linking it to the disclosures it supports.
Where direct integration is not available, structured data upload workflows ensure that every metric disclosed in your sustainability report is traceable to the underlying data that produced it.
The result is an evidence architecture that your Speeki assurance team can interrogate at the data level — not just at the disclosure level.
Evidence Management and Document Organisation
Every document, calculation, methodology note, third-party verification, and supporting record relevant to your sustainability disclosures is stored, organised, and linked within Speeki Engage® | ESG & Sustainability Assurance platform.
Evidence is tagged to specific disclosures, framework requirements, and assurance procedures — so when your Speeki auditor needs to review the evidence behind a Scope 3 calculation, a human rights due diligence process, or a water intensity metric, it is immediately accessible, fully organised, and linked to the disclosure it supports. No evidence requests.
No email chains. No last-minute document scrambles.
Nicole® AI — The Assurance Engine inside the Speeki Engage® | ESG & Sustainability Assurance platform.
Nicole® is Speeki's agentic AI system, embedded directly into the Speeki Engage® | ESG & Sustainability Assurance platform and operating as an active participant in every Speeki Guardian® engagement.
Nicole® performs the systematic, high-volume analytical work that scales the engagement beyond what a traditional team could achieve manually, reviewing evidence for consistency with disclosed metrics, identifying anomalies and gaps across large data volumes, cross-referencing disclosures against framework requirements, flagging potential material misstatements for practitioner review, and maintaining a structured audit trail of every analytical procedure performed.
Nicole® does not replace practitioner judgment , every finding Nicole® surfaces is reviewed, assessed, and concluded upon by a qualified Speeki auditor. What Nicole® does is ensure that nothing is missed, that the analytical coverage is comprehensive, and that the engagement moves faster and deeper than any manual process can replicate.
Gap Analysis and Pre-Assurance Readiness
Before substantive assurance procedures begin, Speeki Engage® | ESG & Sustainability Assurance platform generates a structured gap analysis of your sustainability report against the applicable frameworks — identifying disclosures that are absent, incomplete, or inconsistent with framework requirements.
This pre-assurance readiness assessment gives your team the opportunity to address gaps before they become assurance findings, reducing the risk of material issues emerging late in the engagement and significantly improving the efficiency of the assurance process for both sides.
Auditor-Client Collaboration Workspace
Every Speeki Guardian® engagement operates as a shared workspace inside Speeki Engage® | ESG & Sustainability Assurance platform — your sustainability team and your Speeki auditors working in the same environment, with full visibility of requests, responses, findings, and progress in real time. Information requests are issued, tracked, and responded to inside the platform. Findings are raised, discussed, and resolved without leaving the engagement environment.
The entire engagement record — every procedure performed, every piece of evidence reviewed, every finding raised and resolved — is maintained in a complete, permanent audit trail that satisfies the documentation requirements of ISSA 5000 and AA1000AS v3.
Assurance Opinion and Conclusion Delivery
At the conclusion of the engagement, your Speeki auditor issues the formal assurance opinion or conclusion — a limited assurance conclusion or a reasonable assurance opinion, depending on the engagement scope — based on the procedures performed, the evidence reviewed, and the analytical outputs generated by Nicole® throughout the engagement.
The assurance report is structured in compliance with ISSA 5000 and AA1000AS v3 requirements, and the complete engagement record maintained within Speeki Engage® | ESG & Sustainability Assurance platform provides the permanent, auditable documentation of every procedure that supported it.
Audit Readiness and the Continuous Assurance Advantage
The traditional sustainability assurance model treats assurance as an annual event — a period of intense activity at year-end, followed by a report and a twelve-month gap until the next engagement. Speeki Engage® | ESG & Sustainability Assurance platform changes that model for clients who choose to maintain their sustainability data and evidence within the platform year-round. When your data is continuously ingested, your framework mapping is continuously maintained, and your evidence is continuously organised inside Engage, your organisation moves from annual assurance readiness to continuous assurance readiness.
For organisations under mandatory assurance requirements — CSRD entities, ISSB reporters in regulated jurisdictions, Singapore-listed companies under mandatory climate disclosure — continuous readiness means the engagement begins from a position of strength rather than a position of catch-up. Your Speeki assurance team can begin substantive procedures earlier, move through the engagement faster, and deliver the assurance opinion or conclusion with less disruption to your sustainability team's capacity.
For organisations preparing for their first assurance engagement, Speeki Engage® | ESG & Sustainability Assurance platform provides the structured environment that transforms preparation from a scramble into a process — organising evidence, identifying gaps, mapping disclosures, and giving your team a clear, platform-guided path from unassured disclosure to assured sustainability statement.
With Speeki, assurance readiness is not a project you run before your engagement. It is the permanent state of your sustainability data and evidence — so when Speeki Guardian® begins, it begins from a position where the hard work is already done.
Embedded in the Speeki Engage® | ESG & Sustainability Assurance platform is Nicole Ai, your support team to help you map to your reporting standard requirements. Nicole Ai is trained by Speeki on general elements of the reporting standards and producing a Sustainability report. As part of that training Speeki does not provide any consulting directly on your Sustainability Report.
Of course, Speeki offers assurance of your Sustainability through Speeki Guardian®.
There is no assurance pricing advantage in using Speeki Guardian® because you use the platform provided by Speeki.
Linking Compliance and Assurance.
Using Speeki Engage® | ESG & Sustainability Assurance platform to manage compliance with reporting standards and assurance of your Sustainability Reports stops being a project you prepare for and becomes a standard you simply live by documented, assured, and continuously improving.