Our history

From a practical idea in Menen to an international environmental partner

Trevi was founded in 1992 in Menen by engineers Stefaan Deboosere and Jacky Mortelmans, together with Peter and Frank Vandeputte, who were active in container construction. What started as a practical collaboration soon grew into a company with a clear mission: solving complex environmental challenges through science, engineering and hands-on expertise.

Scientific expertise, practical solutions

From its early focus on wastewater treatment and air purification, Trevi steadily expanded into new fields, including renewable energy, soil remediation and broader environmental technology. The approach remained the same: combining scientific expertise with practical solutions, and building strong relationships with clients and partners.

By investing in in-house R&D, pilot installations and a multidisciplinary team, Trevi grew from a local player into a full-service environmental technology group. Over the years, the company has delivered solutions for thousands of clients and now operates in 19 countries.

Still moving forward

Trevi has always grown deliberately, combining technical knowledge, on-site experience and a long-term view. Today, our team includes more than 200 experts, delivering tailored solutions across water, air and energy for both industry and the public sector.

Through continued investment in R&D, people and sustainable innovation, Trevi is still guided by the same principles that shaped its beginning: practical thinking, scientific expertise and a commitment to making environmental technology work in the real world.

Our Timeline

  • 2001–2002: Trevi acquires and redevelops a former industrial site in Gentbrugge, transforming it into modern offices and labs. The newly renovated headquarters opens in 2004. It is still the company’s beating heart today.
  • 2004: Trevi sarl is founded in Roncq, France.  
  • 2005: Trevi earns ISO 9001 and ISO 14001 certifications, formalising its commitment to quality management and environmental care.
  • 2006: BiogasTec nv is founded as a specialised engineering firm within the group, dedicated entirely to green energy technology.
  • 2007: In a decisive push into biogas, Trevi launches four green energy companies; Agrikracht, GSL, Digrom Energy and Leiestroom, together producing 12 MW of power, enough to supply 30 000 households.
  • 2009: Trevi secures its first VCA* safety certification
  • 2010: Trevi is named Voka-Ambassador twice, in both November and June.
  • 2011: Trevi acquires BETE and establishes Trevion nv as a green energy supplier, selling electricity directly to the market from its own installations.
  • 2013: IPEC joins Trevi, adding know-how in activated carbon applications.
  • 2014: The acquisition of Smet Jet Water Solutions (SJWS) brings expertise in small-scale and individual wastewater treatment systems.
  • 2016: Trevi achieves VCA** certification.
  • 2017: Trevi acquires T&D Milieuadvies to reinforce its environmental administration department, and begins construction of Albertstroom, Belgium’s largest biogas plant (12 MW), which goes live in 2019.
  • 2018: The opening of a new regional office at the Albertstroom industrial site in Grobbendonk.
  • 2019: Trevi partners with Ardo nv to create Ardo Energy Belgium, a joint venture driving new renewable energy projects, including large-scale solar installations.
  • 2020: For the 11th time, Trevi is recognised as a Trends Gazelle.
  • 2021: Trevi founds Hesbaye Energy to build a 2.5 MW biogas plant, which becomes operational in 2023. That same year, T&D Environmental Consulting joins the group, and Trevi collects its 12th Trends Gazelle award.
  • 2022: Trevi turns 30 and secures its 13th Trends Gazelle award.
  • 2025: BiogasTec celebrates its 20th anniversary.