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Impact assessment

Impact Assessment

Understanding and assessing impacts has become a key issue for companies seeking to structure their approaches and support their decisions with reliable data. LCA, LCI, and critical review: these complementary approaches make it possible to analyse, consolidate, and secure assessment results. WeLOOP supports you at every stage thanks to rigorous and independent methodological expertise.

What Is Impact Assessment?


Impact assessment is the scientific approach used to measure and quantify the effects of a product, service or organisation on the environment and society throughout its life cycle.

Based on recognised methods (LCA, LCC, S-LCA, multi-criteria analysis), it transforms complex data into actionable indicators to guide your strategic decisions.

Why is impact assessment essential?

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Increasingly accelerating regulations

DPP (Digital Product Passport), CRP, CSRD , … Ce qui est facultatif aujourd’hui deviendra obligatoire demain. Anticiper ces obligations, c’est protéger son activité.

Your clients and contracting authorities require it

Tenders, specifications, supplier questionnaires… Companies that do not measure their impacts are increasingly being excluded.

You can only improve what you measure

Reducing your footprint starts with knowing where you stand. Assessment provides a precise snapshot and identifies where to act as a priority.

A real and lasting competitive advantage

Companies engaged in an assessment approach inspire confidence among their clients, investors, and partners. Measuring impacts means standing out sustainably.

The regulatory and normative framework

Our Life Cycle Assessment (LCA) studies are carried out in accordance with ISO standards and sector-specific frameworks, to ensure reliable, transparent, and widely recognized results.

What we secure

  • Traceability : assumptions, data, documented sources.
  • Compliance : Standards and publication requirements.
  • Acceptability : Reduced risk of rejection / non-compliance.

Our Solutions Tailored to Your Needs

Conducting Life Cycle Assessments

Consulting firm specializing in Life Cycle Assessment studies for products and organizations

  • LCA modeling in compliance with applicable standards and sector-specific frameworks
  • Impact analysis and interpretation of LCA results
  • Identification des leviers d’écoconception et d’amélioration de la performance
  • Préparation des livrables et synthèses pour vos parties prenantes

Life Cycle Inventory development

Expert specialized in conducting
life cycle inventory

  • Data collection, consolidation and processing for modelling
  • Development of life cycle inventories in accordance with ISO 14040 and ISO 14044 standards
  • Alignment of data with the applicable LCA databases and frameworks
  • Preparation of usable datasets for your various LCA studies

LCA verification – Critical Review

LCA verifiers for conducting independent critical reviews

  • Verification of the consistency of assumptions, scenarios, and methodological choices
  • Quality control, traceability, and reliability assessment of the data used
  • Support for compliance prior to publication or external communication
  • Preparation of critical review reports and support for external validation processes

Why work with an expert consultancy?


Ensure an impact assessment that complies with applicable standards and frameworks


Ensure the reliability of environmental data and ensure methodological consistency


Identify the main contributors to environmental impacts


Showcase a credible environmental approach to clients and stakeholders.