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Solutions, sustainability teams

A file that survives a verification, not only a reading.

Replay at a past date, assurance levels, separation of duties, sealing before publication.

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In short

How do you prepare a sustainability file for verification?

By keeping every value attached to its document and to the method in force at the time, by calculating deterministically so the result replays identically, and by sealing the file before publication: two exports of the same unchanged file carry the same fingerprint. Missing data stays shown as missing, never filled by a silent assumption.

Working meeting around a table, four people in discussion.

The scene

First year under the revised standards, a statutory auditor about to check, and a collection spreadsheet that will not survive it.
Sustainability lead of a company in scope

What we answerYour file has to survive a verification, not only a reading.

Portrait of Franklin Soumaho, CSR project officer

Field feedbackDiscovery feedback

What spoke to me straight away was the idea of being able to centralise ESG data, and above all the evidence that goes with it. Because in CSR, having the figure is not always enough. You have to be able to answer the question: “Where does this data come from?”
Franklin SoumahoCSR project officer on a work-study contract, Île-de-FranceFranklin speaks in a personal capacity. This feedback does not commit his employer, which is not presented here as a client. Feedback collected in writing, published with the agreement of the person quoted. No result figure is announced in it. Translated from French. The original is published on the French page.Read his full feedback, in French , opens in a new tab

Built for sustainability teams

Every property your verifier is going to test.

Data entered once, with its document and its method, returned in the grammar of each framework.

  1. One dataset, six frameworks

    The product where your data lives. It comes in through an existing report, guided collection, Excel and CSV imports or the read-only accounting connector, and nothing is written without your approval. Every figure keeps its document, its version and its method, then comes out in the grammar of each framework: CSRD and ESRS, the voluntary reporting standard, EU Taxonomy, GRI, emissions reporting with STRATA Scope and EcoVadis preparation.

    See: Frameworks
    Six frameworks served by the same dataAn energy consumption entered once, with its document, its version and its method, comes out under the code of each of the six frameworks covered today: ESRS E1-5, basic module B3 of the voluntary standard, energy performance thresholds in the Taxonomy's technical screening criteria, GRI 302-1, item 6 of the emissions report and EcoVadis preparation.One datapointentered oncedocument, version, methodCSRD and ESRSESRS E1-5Voluntary standardB3EU Taxonomytechnical criteriaGRI302-1Emissions reportitem 6EcoVadispreparation

  2. Every value traces back to its document

    An entered figure is linked to the document that founds it, to its version, its date and the calculation method applied. The link is navigable both ways: from a figure to its documents, and from a document to everything that depends on it. You know where a value comes from, and what moves elsewhere if you correct it.

    See: The chain of evidence
    The evidence chain, both waysThree linked steps, on a fictitious demonstration file: the electricity invoice grounds the ENERGY_TOTAL datapoint, which serves the ESRS E1-5, VSME B3 and GRI 302-1 disclosures. The path can be walked back from the disclosure to the uploaded document.EvidenceElectricity invoiceDatapointENERGY_TOTALDisclosureESRS E1-5VSME B3GRI 302-1what depends on itwhat grounds it

  3. A sealed file, with its verification code

    Two exports of the same unchanged file carry the same fingerprint, however much time separates them. That is the difference between a document and a piece of evidence.

    See: The deliverables

    The deliverables

    1. Your client's own file, filled in
    2. Bounded access, not an attachment
    3. An extract, not the whole invoice
    4. A sealed file, with its verification code

  4. Not every figure carries the same weight, and we say so.

    Every value carries an assurance level computed on read, never stored as a frozen status. The level falls back on its own the day the certificate supporting it expires, which a recorded status would not do.

    See: The method

    Assurance levels

    1. DeclaredThe value was entered, with no document attached. It counts, but it proves nothing.
    2. EvidencedA dated document supports the value, and it sits in the vault.
    3. CorroboratedThe value is cross checked against a second source, independent of the first.
    4. VerifiedA third party checked the value and their check is recorded in the journal.

  5. The EU Taxonomy, on the same data

    Eligibility, alignment and turnover, CapEx and OpEx ratios under Article 8, on the regulatory profile in force.

    See: Native layers of the cockpit

    Covered today

    • CSRD and ESRS
    • Voluntary reporting standard (VSME)
    • EU TaxonomyEligibility, alignment and turnover, CapEx and OpEx ratios under Article 8, on the regulatory profile in force.
    • Carbon footprint
    • Social pillar
    • Questionnaires, tenders and suppliers
    • GRI, emissions reporting and EcoVadis

What it costs

One price per product, paid on the product.

The prices below are read from the published pricing; details and payment live on each product.

  • ESG Optimizer

    The CSRD and VSME cockpit: data entered once, with its document, comes out in every framework.

    no card required

    Discovery
    Free

    per analysis, one-off payment

    Essential
    €49

    per month, no commitment

    Pro
    €149

    one-off payment

    First Report
    €990
    Guided Report
    €2,490

    Prices in euros, net of tax: VAT not applicable under Article 293 B of the French General Tax Code. The amount shown is the amount paid.

    See the ESG Optimizer price list

  • STRATA Scope

    The Scope 1, 2 and 3 carbon footprint, every line traced to its ADEME Base Empreinte factor.

    per month, no commitment

    Core
    €59
    Suite
    €99

    per month, on top of Core

    Scope 3 add-on
    €59

    Prices in euros, net of tax: VAT not applicable under Article 293 B of the French General Tax Code. The amount shown is the amount paid.

    See the STRATA Scope price list

What can be checked

None of the above should be taken on trust.

Three public, dated documents you can read before writing to us.

  • The calculation method

    Published in full, versioned and dated.

    Read the method

  • Retracted claims

    What we stopped claiming, with the date and the reason.

    Read the log

  • Your data

    What is collected, why, and how long it is kept.

    Read the policy

Frequently asked questions

What we get asked most often.

All questions

Does a STRATA ESG score replace an audit?

No, and that limit is written on every deliverable. Our scores are indicative and do not replace an audit by a registered statutory auditor. What they provide is the file that audit can rely on: documents in their place, assurance levels field by field, and the state of the file at the closing date rather than today's.

Do you issue an ESG rating or certification?

No. We are neither an authorised rating provider nor a certification body, and we claim to be neither. We prepare a file and make it verifiable; validation belongs to an authorised third party.

Do you publish your calculation method?

Yes, in full, with its version and its date. Nothing requires us to: the European regulation on ESG rating providers, applicable since 2 July 2026, requires regulated actors to publish their methods, and we are not one. We publish ours voluntarily, so that an advisory firm, a statutory auditor or a bank can audit it without asking permission.

What do you do with your clients' data?

Nothing beyond what it was uploaded for. No reuse of your documents for any other purpose, no resale. The parent company site itself collects nothing: it hosts no account, drops no tracker before your explicit choice, and the only data it processes is the email address of whoever writes to us.

Where to start

Put your file to the test before your verifier does.

The first diagnostic is offered on sign-up, no card required.

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