
Colsen, Environmental Engineering Consulting Firm, B.V.
Founded by Joop Colsen in 1989, Colsen has grown into a global leader in water, sustainable energy, and environmental solutions. With offices in the Netherlands, Spain, and South Africa, and a trusted partner network worldwide, we deliver local support fueled by a shared passion for innovative solutions.
As a family-owned company, Colsen prioritizes short communication lines, flexibility, and cutting-edge innovation across all industries. Our dedicated teams of technology experts, engineers, and project managers work hand in hand to craft sustainable, tailor-made solutions that address today's challenges and tomorrow's possibilities.
At our headquarters in Hulst—Colsen's knowledge hub—we foster growth and development through various training programs for employees and clients alike. With a perfect balance of expertise, we offer a broad range of services across industries and regions. From developing and optimizing technologies to translating mathematical models into real-world solutions, our teams bring innovation to life. Plus, our advisors navigate the complexities of permits, subsidies, and legal frameworks to ensure smooth project execution.
Join Colsen and be part of a company that's redefining sustainability — working together for a greener tomorrow.
We are looking for...
At Colsen, we value your growth, well-being, and contribution to a sustainable future. Here's what you can expect:
- A competitive salary with development opportunities aligned with personal and business goals.
- 25 paid holidays (full-time), plus Dutch bank holidays.
- Fully-funded pension scheme, ensuring a secure future.
- Flexible working options to support work-life balance.
- Relocation support, including temporary housing if needed.
- Additional perks like travel cost reimbursement, collective health insurance, and a company phone.
- An innovative, informal, and supportive environment, where your work directly contributes to a better climate and a healthier planet.
Be part of a team where innovation, camaraderie, and collaboration are at the heart of everything we do—and where your contributions are truly valued!


