Leroux & Lotz Technologies

LEROUX & LOTZ Technologies Creating Energy Solutions for the Future

Leroux & Lotz Technologies responds to the challenges of the ecological transition by offering our customers bespoke solutions with optimum energy performance combined with overall reduced environmental impact.

With our vast experience in the sector which is in excess of 35 years, we can bring our own combustion and gasification technologies to your project suited to the recovery of both local and/or renewable energy such as biomass and/or waste. As such our technologies are fully in line with the promotion of the circular economy.

Our activity centres on both new projects as well as the upgrading of existing installation in the field of Waste to Energy and Biomass to Energy systems. Our aim is to optimize the performance of your installation and replace fossil fuels with less carbon-intensive fuels.

en bref


85 full time professionals available

to advise and support you
and contribute to the success
of your projects.

35 years

of presence in the energy sector with over 200 references in France and around the world.
chiffre d'affaire

35 to 40M €

annual turnover of which approx. 35% is generated from projects outside France.

Full and up to date certification according to

iso 9001,
iso 14001
and iso 45001.

Research & Development

Driven by a spirit of innovation, we mobilize resources and our skills in order to invent and realize the solutions of tomorrow which will support you in your sustainable development, such as Gasification, CO2 capture, Hydrothermal Oxidation and Bio-Methane production, which will contribute to building a world respectful to people and the environment.

attentive to the environment


85 Employees


9 Nationalities


44 years

of average age


91 %

Proud collaborators working at LLT


92 %

of employees feel good at LLT

The history of LEROUX & LOTZ

During the 1990s, a focus was placed on our environment and energy businesses. In 2005, Leroux & Lotz Technologies was taken over by the Groupe ALTAWEST as its first major acquisition.

Since then, we have continued this growth path in the sector where we are recognized as a major player, both in terms of our technologies, our references and our investment strategy in innovation.