50 years of history, innovation and commitment

Telling the tale of an adventure through half a century

50 years of excellence and commitment

This year, our company is reaching a major milestone: we are celebrating our 50^th anniversary. Half a century of innovation, passion and commitment that have forged our identity and success. Over these five decades, we have imagined, designed and delivered real estate solutions for the logistics, services and manufacturing sectors, creating structures that transformed regions and supported our clients’ growth.

A strong heritage and a vision for the future

Over the past 50 years, GSE has established itself as a key general contractor in the European market – with a significant presence in France, Spain, Portugal, Italy and Romania. Our flagship projects demonstrate our ability to anticipate our clients’ expectations while addressing environmental concerns. Today, with The Blue Suite^®, we are strengthening our commitment by placing sustainability and energy performance at the heart of each project.

Constantly evolving to meet the challenges of real estate

GSE has always been able to adapt and innovate to meet the challenges of the commercial real estate sector. Today, our industry is undergoing profound change, marked by digitalisation, the energy transition and the emergence of new uses – and we are rising to the occasion.

A recent example perfectly illustrates our adaptability: the construction of a data center in Marseille. This strategic project reflects our ability to support regional development while complying with demanding standards of energy performance and safety.

This type of project is much more than just a building: it symbolises a new stage in our history. We no longer just build structures; we design solutions that enable companies to combine digital growth with sustainability.

Our 50-year adventure through the eyes of our people

To mark our anniversary, we decided to give the floor to our employees those who embody the spirit of GSE and contribute every day to shaping our story. To kick off the celebrations, we interviewed two emblematic members of our team: Catherine Antoni and Flavie Delabarre.

Catherine Antoni, an executive assistant at GSE for 27 years, has been a privileged witness to the company’s evolution. She has seen GSE grow, transform, and innovate over the years, adapting to the profound changes in both the construction industry and the workplace. With her extensive experience, she represents the living memory of our history, combining expertise and loyalty.

On the other hand, Flavie Delabarre, our newly joined marketing officer, brings a fresh and modern perspective. With her energy and forward-thinking vision, she embodies renewal, bringing a wave of creativity and innovation to our actions and our brand image. Together, these two complementary profiles reflect both GSE’s strong heritage and its ambition to evolve with the times.

Their shared insights blending memories, visions, and contributions are a fitting tribute to our rich history and a testament to the diversity and human strength that shape GSE every day. Through their perspectives, we see the perfect balance of tradition and modernity that defines who we are.

Q1: What does this 50th anniversary mean to you?

Catherine: It makes me very proud. These 50 years demonstrate our company’s strength, its ability to adapt to sometimes complex geographical, economic and political contexts, as well as the trust our clients place in us. And it’s a unique opportunity to thank everyone who has contributed to this success.

Flavie: It inspires me. Joining a company with such a heritage makes you want to be even more invested. These 50 years show that GSE endures because it knows how to innovate.

Q2: What are the key moments in the company’s history?

Catherine: There are many! The opening of our first site, the launch of our innovative solutions, and more recently our strong commitment to sustainability. Each step has been a challenge that we have overcome together. Every site opening outside France, the billion we dreamed of and achieved, the signing of our first project worth over €100 million, not to mention the launch of innovative solutions and our policy of sustainable construction. Each step is the result of a challenge we have overcome together.

Flavie: Our international development is a major milestone: it demonstrates our ability to export our expertise and adapt to various markets.’

Q3: How do you see the future?

Catherine: We must continue to innovate, anticipate our clients’ needs and step up our positive impact. The next 50 years will be marked by responsibility and digital transformation. Continuous innovation, anticipating our clients’ needs, knowing how to adapt and pursuing our commitment to the environmental & social transition: these are the pillars of the next fifty years, under the sign of responsibility and digital transformation.

Flavie: I see a company that will continue to transform, integrating even more digital technology and sustainability into its projects.

First and foremost: the adventure of a team of people

Above all, it’s GSE’s men and women who make the company strong. These answers are exemplary of their commitment and passion, rallying behind a shared vision. Together, we continue to write the next chapters of this wonderful story.

An exceptional and eventful 2026

To celebrate its 50^th anniversary, GSE is launching initiatives that will mark this year as a unique milestone:

• inspiring stories and insights from our employees and partners, highlighting their experiences and contributions
• iconic projects that showcase our expertise and commitment to the planet
• an original web series, inspired by classic films and cult TV series, which will reveal the behind-the-scenes work on our projects, the technical expertise of our teams, the daily lives of our engineers in the field and the trust of our clients.
• sustainable innovations that embody our ambition to contribute to the major challenges of tomorrow

GSE 50^th anniversary celebration will be true to the company’s spirit: bold, creative, determined and always turned to the future!

Stay tuned throughout the year for more highlights of our 50^th anniversary!