What is Psychological Safety and Why it Matters for Employee Engagement

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Imagine a workplace where every voice matters, where people feel safe to share ideas, even bold ones, without fear of judgment. Mistakes become learning opportunities, not career-ending events. This is the foundation of Psychological Safety, a concept proven to drive team performance and Employee Engagement. 

And Employee Engagement  is the key to high retention. 

Attracting, retaining and engaging top talent is a top-level priority for every organisation. In fact, over half of all HR professionals view retention as their greatest challenge1.

This is important as external research shows that highly engaged teams are not only loyal to their organisation, they also deliver 21% greater profitability2.  

There is a belief in many organisations that the biggest driver of engagement is perks and pay. It’s not. It’s Psychological Safety.  

When employees feel safe to speak up, share ideas and take risks without fear, innovation accelerates, collaboration deepens and Organisational Health improves. For organisations, prioritising Psychological Safety is a strategic imperative for building resilient, high-performing cultures. 

What is Psychological Safety? 

“A belief that one will not be punished or humiliated for speaking up with ideas, questions, concerns or mistakes, and that the team is safe for interpersonal risk-taking.”

– Amy Edmondson

Harvard professor Amy Edmondson3, who coined the term, describes Psychological Safety as essential for learning and innovation. When it’s present, people contribute fully because they trust that their voice matters. 

A group of people sitting around a tableAI-generated content may be incorrect.

Why It Matters for Engagement 

Employee Engagement is about commitment, motivation and willingness to go the extra mile. Psychological Safety fuels engagement because: 

  • Trust builds collaboration: Teams work better when members feel safe to share ideas. 
  • Innovation thrives: People take creative risks when mistakes aren’t punished. 
  • Retention and wellbeing improves: A culture of respect reduces stress and burnout. 

At Best Companies, our academically rigorous 8-Factor Model - refined over more than 25 years -demonstrates that true Employee Engagement is built on trust, open communication and meaningful relationships. Certain factors such as Leadership, My Manager and My Team consistently show that when employees feel heard, respected and supported, performance and loyalty thrive.  

However, our data shows that over the past year, all three of these factors have seen a decline in their average scores, with My Team seeing the second greatest decline out of all 8-Factors.

Furthermore, the statement “People are afraid to express their true feeling in team meetings” had a low performing score of 65.46%, indicating a low degree of Psychological Safety, which is essential for honest communication and streamlining decision-making.

Psychological Safety is the foundation that underpins every one of these behaviours, encouraging people to share ideas, raise concerns and collaborate without fear, enabling teams to thrive. 

The Research: Google’s Project Aristotle 

In 2012, Google4 launched Project Aristotle to answer one question: What makes a team effective? After studying 180+ teams and analysing hundreds of variables, the top finding was clear: Psychological Safety was the number one predictor of team success. 

Other factors included: 

  • Dependability: Completing quality work on time. 
  • Structure & Clarity: Clear roles and goals. 
  • Meaning: Work feels personally important. 
  • Impact: Belief that work matters. 

But none mattered as much as creating an environment where people feel safe to speak up. Their researched confirms that Psychological Safety is the foundation for high-performing teams. 

Further research highlights the importance of effective teams: 

  • Gallup5 reports that highly engaged teams show 21% greater profitability. 
  • Harvard Business Review6 found that organisations with strong Psychological Safety outperform peers in innovation and adaptability. 
  • Best Companies data shows that employees at 3-Star organisations score their team relationships 14.6% higher than those at Ones To Watch organisations, helping lead to 31.6% lower turnover. 

A group of people sitting around a tableAI-generated content may be incorrect.

How Leaders Can Foster Psychological Safety 

Building Psychological Safety requires intentional leadership. Practical steps that leaders can take are: 

  • Model openness: Admit mistakes and show vulnerability. 
  • Encourage questions: Make curiosity part of the culture. 
  • Respond with respect: Treat every idea as valuable. 
  • Celebrate learning: Recognise effort and progress, not just outcomes. 
“Creating an environment where people feel safe to speak up isn’t just good leadership, it’s a strategic imperative. In my conversations and relationships built with CEOs from some of the UK’s most well-known brands, one insight stands out: organisations that listen to their people and act on feedback by including their people in the decision process, create cultures where trust and Psychological Safety thrive. Psychological Safety is a proven driver of engagement, innovation and organisational health. By making this a priority, leaders build workplaces where people feel valued, ideas flourish and performance soars.” 

- Best Companies Founder & CEO, Jonathan Austin’s view on Psychological Safety  

Psychological Safety Doesn’t  Happen by Accident 

It’s built through measurement, insight and action. At Best Companies, we provide the tools and expertise to turn employee feedback into meaningful change. Our Measure and Improve solutions empower leaders to: 

  • Understand Employee Engagement at every level: Gain a clear picture of how your people feel about leadership, management and teamwork, using our proven 8-Factor Model. 
  • Pinpoint areas for improvement: Identify where trust, communication and collaboration need strengthening so you can focus on what matters most. 
  • Turn data into action: Receive tailored, actionable insights that help you create a culture where Psychological Safety thrives, innovation accelerates and performance soars. 

By combining robust measurement with expert interpretation, Best Companies helps organisations move beyond theory to achieve real, lasting cultural change.

Video Transcript

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