Our people are what make Diploma different. Their passion, expertise and commitment to customers drive our success. In our decentralised, entrepreneurial environment, you have the freedom to take ownership, develop quickly and make a real impact.

Hear from some of our business leaders about Diploma’s culture >

What it’s like working with us

Our people are passionate, collaborative and driven by a shared commitment to delivering better outcomes for customers.

We empower people to take ownership, make decisions and create impact from day one. It's a high-performance environment where responsibility comes early and success is earned through initiative, accountability and delivering results.

For ambitious, self-motivated individuals, this offers the opportunity to develop quickly, contribute meaningfully and build a rewarding career.

Hear from our people

What I’ve appreciated most about these first few weeks has been the opportunity to learn about VSP Technologies as a whole. I’ve had the chance to spend time with leaders across the organization and see firsthand the unique role each division plays — from engineering and manufacturing to inventory and shipping, accounting, purchasing, and sales.

Read the full story

A career with Diploma

We’re proud to be part of Diploma PLC for many reasons, and one of the best is how we develop talent across our businesses. We encourage and support people to think big, collaborate and get stuff done.

Jette Stade on her journey to CFO of M Seals

I began my Diploma career in the finance team at our London HQ and am now based in Australia, overseeing the finance function of one of our operating businesses. This reflects the organisation’s approach to developing talent, trusting people with real responsibility, and providing early exposure to senior leaders in a lean HQ environment. It is a business where you can build a long-term career, and one I have really valued being part of.

Operating in a decentralised group

What stood out most after joining Diploma was how much ownership I was given from day one. You’re encouraged to bring ideas, take initiative and shape your own development. For graduates who want real responsibility early on, it’s an environment where you can move quickly and build a meaningful career.

Our culture in 3 words

I joined M Seals as an apprentice many years ago, and the chance to grow, lead, and make a real difference is what’s kept me here. I’m ambitious about where we can take the business, but I’m most motivated by delivering real value for our customers and our people - because when you invest in people, the results speak for themselves.

There’s no better place to grow than with a growing business. At Hercules OEM, if you’re an engineer you’re in front of customers and you get to see new opportunities to grow the business which also means you get to grow and develop too.

79%

of our colleagues feel engaged at work

91%

agree their business respects different cultures, backgrounds and ideas

86%

agree their job makes good use of their skills and experience

93%

agree that their business takes health and safety seriously

Why join Diploma

Diploma offers a rare blend of autonomy, responsibility and opportunity within a diverse, international and fast-growing group.

You’ll have the accountability and freedom of being an entrepreneur, backed by the strength and resources of a FTSE 100 company. Our decentralised model creates an environment with fewer layers, less bureaucracy and more opportunities to make a real impact.

Our values

Down to earth

Do the right thing 

Customer-centric

Accountable

Grow together

Career and development

We're a fast-growing, high-performing and diverse group where responsibility comes early. With a lean, decentralised structure, you'll gain broad exposure across the group, develop quickly and build real leadership capability from the outset.

As Diploma continues to grow, so do the opportunities available to our people. Whether it’s stepping into larger roles, leading strategic initiatives, working across businesses or gaining international experience, you’ll have the support to shape your career and accelerate your development.

If you’re ambitious, accountable and motivated by results, you’ll find real opportunities to grow here.

Developing our leaders

Strong leadership is the engine of Diploma’s growth. In a lean, decentralised group, our Managing Directors bring strategy to life in their markets, empower their teams and ensure our businesses remain agile and entrepreneurial.

Our annual leadership events connect senior leaders across the Group, fostering collaboration, knowledge sharing, and a culture of continuous growth.

Early careers

We invest in future talent through a range of apprenticeships across our businesses.

In 2025, we launched our first graduate programme in the US and UK - creating new pathways for ambitious individuals to accelerate their career with us.

Interested in our graduate programme?

Diversity and inclusion

We know that diverse perspectives drive better decisions, stronger performance and greater innovation. That's why we're committed to creating an inclusive culture where everyone is respected, supported and empowered to contribute.

We want talented people from all backgrounds to feel they can belong, grow and succeed at Diploma.

32%

senior leadership roles held by women 
(Target: 40% by 2030)

Joanna Smith on backing working mothers in leadership.

When Joanna Smith was expecting her third child, the support and flexibility she received gave her the confidence to step into the MD role at Fortress Safety. Years later, she’s helping create more opportunities for others.

Jette Stade on her journey to CFO of M Seals

Jette Stade’s 15-year journey at M Seals reflects the power of investing in people — where continuous learning, inclusivity, and opportunity enable individuals to grow, lead, and give back.

Elena Lo Castro on championing women in healthcare

Throughout her career, Elena Lo Castro has benefited from female leaders who created space to share experiences, build confidence and grow. She’s now championing the next generation of women in healthcare.

Melissa Lee on helping more women thrive in leadership roles

Throughout her career, Melissa Lee has benefited from mentors who recognised her potential and gave her opportunities beyond her experience level. Inspired by those who invested in her growth, she has dedicated her leadership career to spotting untapped talent, creating opportunities for others, and helping more women thrive in leadership roles within traditionally male-dominated industries.

Celebrating success

Our All Stars programme celebrates the exceptional contributions from individuals and teams across the Group. This year, we received more than 700 nominations recognising excellence in customer service, sustainability, innovation, teamwork and supporting others. The quality and passion behind every entry showcased the incredible work happening across all our teams, every day.

Diploma Graduate Programme

Are you looking for something different? Our Graduate Programme, gives ambitious graduates the opportunity to build skills, grow quickly, and make an impact across our businesses in the UK and US.

Find out more