What DEI work actually involves for corporate sustainability programmes

Diversity, Equity and Inclusion (DEI) in a corporate sustainability context covers both the internal dimension, ensuring sustainability functions and leadership teams reflect diverse perspectives and backgrounds, and the external dimension, ensuring that sustainability strategies consider the differential impacts of environmental and social risks on different communities. Under emerging reporting frameworks including CSRD (S1 Own Workforce standard), companies must disclose workforce composition data, pay gap information, and the governance structures for DEI, making it a compliance issue as well as a strategic one.

Why it's harder in practice than it looks

DEI metrics are collected inconsistently and often incompletely

Workforce diversity data collection requires voluntary self-identification, which many employees decline to provide. Incomplete datasets make benchmarking and target-setting difficult, and companies that publish diversity figures without disclosing response rates often overstate the quality of their data.

Pay gap and pay equity are different metrics that require different analysis

The gender pay gap (the difference in median pay between men and women across the organisation) is a structural measure of workforce composition. Pay equity (whether people in equivalent roles are paid equally regardless of gender, ethnicity, or other characteristics) is a fairness measure. Companies that report only the pay gap without addressing pay equity are missing the most operationally actionable data.

Inclusion is harder to measure than diversity

Diversity can be measured through headcount data; inclusion requires measuring whether diverse employees feel valued, respected, and able to contribute fully, typically through surveys. Organisations that improve diversity representation without addressing inclusion create attrition problems as diverse talent leaves environments that do not support their success.

External DEI claims are increasingly regulated

Consumer-facing DEI commitments are subject to the same greenwashing scrutiny as environmental claims. Organisations making public commitments about workforce diversity or pay equity without substantiating data face regulatory and reputational risk as standards enforcement increases.

What good looks like

A credible DEI programme includes workforce composition data with documented collection methodology and response rates, a pay equity analysis reviewed by an independent auditor, a DEI strategy with time-bound targets grounded in a baseline, board and leadership team accountability for outcomes, and integration of equity considerations into the design of sustainability programmes, ensuring that climate transition planning, for example, considers impacts on lower-income workers and communities. Disclosure is aligned with CSRD S1 and GRI 405 requirements.

When to bring in external support

Pay equity analysis, DEI programme design, and employee listening surveys all benefit from external specialist support to ensure methodology rigour and stakeholder credibility. Leafr's network includes DEI and social sustainability specialists who support disclosure-ready programme design and workforce data analysis across corporate and public sector organisations.

Frequently asked questions

What does DEI stand for and why does it matter for businesses?

DEI stands for Diversity, Equity and Inclusion. Diversity refers to the mix of characteristics in a workforce or organisation. Equity refers to ensuring fairness in processes and outcomes. Inclusion refers to creating an environment where all people can contribute fully. Research consistently shows that organisations with greater diversity of thought, background and experience make better decisions and achieve stronger financial performance over time.

What is the difference between diversity and inclusion?

Diversity is about representation, the presence of people with different backgrounds, identities, and experiences. Inclusion is about experience, whether those people feel valued, respected, and able to contribute. An organisation can have diverse headcount statistics and still have low inclusion if the culture does not support diverse employees. Improving diversity without improving inclusion creates a revolving door where diverse talent is recruited but quickly leaves.

What DEI data must companies disclose under CSRD?

Under CSRD's ESRS S1 (Own Workforce) standard, companies must disclose workforce composition including gender distribution across pay bands and management levels, gender pay gap data, the percentage of employees in vulnerable groups, and information about processes for ensuring equal treatment and opportunity. The precise disclosure requirements depend on the company's materiality assessment, but for most large employers these topics are likely to be material.

How should companies set credible DEI targets?

Credible targets are grounded in a verified baseline, are time-bound, and are specific enough to be measurable. Common approaches include gender representation targets at board and senior management level, pay equity targets expressed as a maximum percentage gap, and targets for diverse candidate shortlisting in recruitment. Targets should be challenging relative to current position but achievable without compromising other criteria such as qualifications and experience.

How does DEI connect to climate justice and just transition?

Climate change and the transition to a low-carbon economy disproportionately affect lower-income communities and workers in high-carbon sectors. Corporate sustainability strategies that address climate without considering the just transition, ensuring that decarbonisation does not create new social inequities, are increasingly challenged by trade unions, community groups, and socially focused investors. Integrating equity analysis into climate transition planning is best practice and increasingly expected by frameworks such as TNFD and CSRD.