Diversity and inclusion in the workplace: a guide for HR with data, KPIs and checklist (2026)

Updated: March 2026 · By Álvaro Arrescurrenaga, CEO of Voicit

Companies in the top quartile for ethnic and cultural diversity are 39% more likely to outperform their industry average. This isn't an opinion—it's the report's main finding. «Diversity Matters Even More» According to McKinsey (2023), based on an analysis of more than 1,200 companies in 23 countries, diversity and inclusion in the workplace is not just an ethical issue—it is a measurable competitive advantage.

📊 The data: why D&I impacts results

Research on diversity and inclusion in the workplace has gone from anecdotal to conclusive. These are the most robust data available:

The mechanism is simple: diverse teams bring different perspectives, leading to better problem-solving, more innovation, and less groupthink. But diversity only works if the environment is inclusive—if diverse voices aren't heard, diversity is merely cosmetic.

🔍 The 7 dimensions of workplace diversity

Diversity goes far beyond gender and ethnicity. To manage it effectively, HR needs to understand all its dimensions:

The most common mistake: focusing solely on gender diversity (which is important, but insufficient) and ignoring the other dimensions. A team with gender parity but where everyone has the same background, age, and origin is not truly diverse.

🎯 The role of HR: from intention to action

76% of companies say that D&I is a strategic priority, but only 36% have a budget specifically allocated for it (source: SHRMThe gap between intention and action is enormous, and closing it is the direct responsibility of HR.

Concrete actions, not declarations

• Audit the selection process: Are there biases in the job description, in the CV screening, in the interviews? Review real data, not impressions.
• Training hiring managers: 70% of hiring decisions are made by the manager, not HR. If the manager has unconscious biases, the entire D&I strategy fails.
• Diversify recruitment sources: If you only post on LinkedIn and at elite universities, the pool of candidates will be homogeneous by definition.
• Measure and report: Create diversity dashboards by department, hierarchical level, and stage of the selection funnel.
• Include D&I in performance evaluations: that managers are also evaluated on how they manage diversity in their teams.

🧑‍💼 Diversity in selection: reducing biases from the first filter

The selection process is where the battle for diversity is won or lost. Biases come into play at every stage:

In the job description

Words like "aggressive," "ninja," or "rockstar" discourage female job applicants. A study by Textio It was shown that job postings with gender-neutral language receive 42% more applications from women. Language analysis tools can automatically detect these biases.

In CV screening

Name biases (candidates with names associated with certain ethnicities receive 50% fewer callbacks — NBERThese can be reduced with blind CVs: removing name, photo, age, and university from the first filter. Some ATS already offer this functionality.

In the interviews

Unstructured interviews are fertile ground for bias: the interviewer tends to favor candidates similar to themselves ("affinity bias"). The solution: structured interviews with the same questions for all candidates and predefined evaluation criteria.

Documenting each interview with objective reports is essential to ensure that decisions are based on expertise, not subjective impressions. Tools such as Voicit They generate automatic interview reports, creating an objective record that helps detect patterns of bias and ensure fairness in the process.

🏗️ How to build a truly inclusive culture

Hiring diverse people is just the first step. Without an inclusive culture, diverse talent leaves — the turnover rate in non-inclusive environments is 3.5x higher (Deloitte).

5 pillars of an inclusive culture

1. Psychological safety: that anyone can express ideas, ask questions, or make mistakes without fear of reprisal. Google identified psychological safety as the number one factor for high-performing teams (Project Aristotle).
2. Mentoring and sponsorship: Mentoring programs for underrepresented profiles. The difference between mentoring (advice) and sponsorship (someone who advocates for your candidacy for a promotion) is critical — many diverse profiles have mentors but not sponsors.
3. ERGs (Employee Resource Groups): Employee-led affinity groups (women in tech, LGBTQ+, parents, neurodivergent). They highlight diversity and build community.
4. Continuing education: not a once-a-year "unconscious bias" workshop, but training integrated into daily life — in meetings, evaluations, promotion decisions.
5. Inclusive communication: neutral language in internal communications, diverse representation in marketing and employer branding, accessibility across all channels.

📈 Diversity and inclusion KPIs

What isn't measured can't be managed. These are the essential indicators:

The most revealing metric is the combination of representation + rotationIf you hire diverse profiles but they leave within the first 12 months, you have an inclusion problem, not a diversity problem.

⚖️ Legal framework in Spain and the EU

Spain

• Equality Law (3/2007): It requires companies with more than 50 employees to have a registered equality plan.
• Royal Decree 902/2020: Mandatory salary audits to detect and correct the gender gap.
• LISMI (Law 13/1982): Companies with more than 50 employees must reserve 2% of positions for people with disabilities.
• Law 4/2023 (Trans): protection against discrimination based on gender identity and sexual orientation.

European Union

• Salary Transparency Directive (2023): It requires reporting of the gender pay gap and providing information on salary ranges in job postings. Transposition into national laws by 2026.
• AI Act: AI systems in selection are "high risk" — they require bias auditing and human oversight.
• Directive on parity in boards (2022): 40% representation of the least represented gender in the boards of directors of listed companies by 2026.

🏢 3 companies that do it well

✅ D&I checklist for HR teams

💡 Conclusion

Diversity and inclusion in the workplace is one of the few strategies that simultaneously improves financial results, innovation, talent attraction, and brand reputation. Data from McKinsey, Deloitte, and Harvard Business Review have consistently confirmed this for over a decade.

But moving from intention to action requires real commitment: audit the selection processes to eliminate biases, to build a culture where diversity translates into inclusion, and measure the results with specific KPIs.

HR has the most powerful lever: it controls who joins, how they are evaluated, and what culture is built. Tools like Voicit They help to document interviews objectively, creating a record that allows for the detection of biases and ensures that hiring decisions are based on skills, not affinity.

📚 Related Articles

• CV screening with artificial intelligence: a complete guide 2026
• Ethics in the use of technology for HR: privacy, transparency and fairness
• Recruitment and selection report: complete guide with template and KPIs
• How to evaluate candidates' answers in an interview

Álvaro Arrescurrenaga
CEO and co-founder of Voicit. Entrepreneur specializing in AI applied to meetings and recruitment processes. Over 1,000 companies use the platform to transform meetings and interviews into actionable reports.