AI assistants for CSRD assurance teams
CSRD assurance creates a new workload for audit, compliance and ESG teams. Data needs to be collected, checked, mapped, explained and evidenced across departments, entities, suppliers and reporting frameworks.
Nostrion helps CSRD assurance teams work faster with AI assistants that prepare the work, structure the evidence and keep human experts in control.
Built for the new assurance workload
CSRD is not just another reporting requirement. It introduces a repeatable assurance process around sustainability data, controls, audit trails, source documentation and management accountability.
For assurance teams, the pressure is clear:
More data points to review
More source systems to connect
More evidence to collect
More stakeholder questions to answer
More consistency required across reports, entities and years
More need for clear traceability
The challenge is not only creating the report. The challenge is proving how every claim, number and decision was reached. Nostrion helps teams build AI-assisted workflows for the work around assurance, while keeping final review and sign-off with qualified professionals.
What Nostrion helps automate
Data mapping
AI assistants can help map CSRD disclosure requirements to internal data sources, policies, documents, owners and systems.
Evidence collection
Teams can use AI to request, classify and structure evidence from departments, entities, suppliers and internal repositories.
Document review
Policies, reports, contracts, procedures and source files can be reviewed and summarized to support assurance preparation.
Gap detection
AI assistants can flag missing evidence, unclear ownership, inconsistent terminology or weak links between claims and source material.
Audit flow preparation
Assurance teams can prepare audit-ready workpapers, review notes, evidence packs and internal explanations faster.
Management Q&A
AI assistants can prepare answers to recurring questions from management, ESG leads, finance teams and external auditors.
Reporting support
Teams can improve consistency across draft disclosures, source references, internal comments and assurance documentation.
How the work changes
CSRD assurance teams spend large amounts of time chasing information, reviewing files, checking consistency, mapping disclosures and preparing documentation manually.
Knowledge sits across teams. Evidence lives in different systems. Review cycles become slow because every question creates another search, another spreadsheet or another email thread.
Today
AI assistants help prepare the work before human review. They can search documents, structure evidence, create first-pass mappings, detect missing inputs and prepare audit trails.
Experts still decide. The assistant removes repetitive work around the expert process.
With Nostrion
CSRD assurance can become a structured, repeatable workflow. Data owners, ESG teams, finance, risk, legal and assurance teams can work from one controlled process with clear evidence, clear ownership and clear review history.
The future
Why Nostrion
CSRD assurance requires trust, control and explainability. Public AI tools are not enough for sensitive sustainability, finance, supplier and operational data.
Nostrion is designed for regulated and high-trust sectors.
The platform supports:
This gives assurance teams the speed of AI without losing control over sensitive data or professional judgment.
Human experts stay responsible
AI can prepare, compare, summarize and flag. It should not replace professional assurance judgment.
People remain responsible for:
Risk evaluation
Management challenge
External assurance interaction
Nostrion is built around that principle. AI supports the workflow. Experts own the outcome.
Phase 1: Identify the first assurance workflow
Start with one high-friction process, such as evidence collection, disclosure mapping, document review or audit pack preparation.
Phase 2: Connect the right data sources
Bring together reports, policies, spreadsheets, source documents, internal files and ownership records.
Phase 3: Configure AI assistants
Define what each assistant may read, summarize, flag, prepare and route for review.
Phase 4: Add human approval
Set approval steps, review checkpoints, role permissions and logging requirements.
Phase 5: Scale across entities and cycles
Extend the workflow across more business units, countries, reporting cycles and assurance teams.
Use cases
CSRD disclosure mapping assistant
Maps reporting requirements to internal data sources, evidence owners and supporting documents.
Evidence request assistant
Prepares structured requests to data owners and tracks missing or incomplete inputs.
Source document assistant
Reads and summarizes policies, procedures, supplier files, operational data and reporting documents.
Audit pack assistant
Creates structured evidence packs for internal review and external assurance preparation.
Consistency check assistant
Flags mismatches between report language, source files, metrics, definitions and previous versions.
Management response assistant
Prepares draft responses to questions from management, ESG teams, finance and auditors.
Frequently asked questions
Does Nostrion replace CSRD assurance experts?
No. Nostrion supports experts by preparing, structuring and checking work. Human experts remain responsible for judgment, review and sign-off.
Can Nostrion work with our existing documents and systems?
Is sensitive ESG and financial data protected?
Can we start with one CSRD workflow?
Who is this for?
Make CSRD assurance faster, clearer and easier to evidence
Use AI assistants to reduce manual work, improve traceability and keep experts in control.