Envirogroup is an engaged hybrid company — combining hands-on engineering expertise with dedicated investments that speed up the transition to a low-carbon, sustainable economy.
Advising French & European SMEs operating in renewable energies and environmental engineering on their international development — particularly in the southern hemisphere and emerging markets.
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Investing in startups and established SMEs having a concrete impact in reducing carbon emissions and developing sustainable growth.
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Collaborating on the design, development and promotion of low-carbon neighbourhoods and housing across Africa — earth bricks, solar energy and water reuse as one living system.
Discover the initiative →We advise French and European SMEs operating in the fields of renewable energies and environmental engineering on their international development — particularly in the southern hemisphere and emerging markets.
Market intelligence, local partnerships, regulatory navigation, financing pathways and on-the-ground delivery support: we turn cross-border ambitions into working operations.
Engineering knowledge, committed to where it matters most.
Envirogroup, actor of the environmental and energy transition, is investing as a minority shareholder in startups and established SMEs having a concrete impact in reducing carbon emissions and developing sustainable growth.
Founded by Olivier Decherf in 2001, Enviroearth has been designing and deploying energy and environmental solutions tailored to the most demanding contexts worldwide.
As a systems integrator and EPC company, Enviroearth manages the entire project lifecycle — design, procurement, installation, commissioning and operation — delivering tailor-made, high-performance, turnkey solutions.
Two complementary areas of expertise:
🌱 Environmental Monitoring — high-precision systems for the measurement, monitoring and transmission of environmental and geophysical data, serving international scientific networks.
☀️ Renewable Energy — photovoltaic plants and hybrid energy systems from 100 kWp to 3 MWp, dedicated to rural electrification and productive-use applications; ensuring reliable, sustainable power in remote off-grid locations or at grid-connected sites.
For 25 years, Enviroearth has served public and private stakeholders internationally. With 95% of business generated through exports, its multidisciplinary team operates in complex environments from Africa to South America, Oceania and remote territories.
CVE is an independent French renewable energy producer and a pioneer of the energy transition since 2009. The group produces solar electricity, biomethane and green hydrogen, covering the entire value chain: development, financing, construction and operation.
Its unique model of decentralised production and direct sales (PPAs, self-consumption) brings energy closer to consumers through short supply chains — making businesses, local authorities and farmers active participants in their own decarbonisation.
Operating in France, Chile, the United States, Spain and South Africa, CVE manages a secured portfolio of nearly 3 GW of projects, with over 220 MWp in operation in Chile and a breakthrough in US community solar.
CVE is also a leader in biogas, converting 237,000 tonnes of organic waste into renewable energy and fertilisers each year.
As a mission-driven company with B Corp certification, CVE places environmental and social impact at the heart of its growth.
Envirogroup is participating as one of the seed founders of this innovative fintech, founded by Julien Decherf in 2024 and based in Lyon, France.
Wavo purchases inventory from growing companies to unlock immediate cash flow, then sells it back to them as sales occur — all without incurring debt or moving the products. Through this innovative model, Wavo partners with ambitious companies that excel at both selling and building. This concept is particularly adapted to reuse businesses growing the circular economy.
Since 2025, Wavo has raised funds from leading investors such as Eurazeo, Kima Ventures…
Our flagship initiative: a Franco-Panafrican consortium delivering low-carbon residential eco-districts across Africa — compressed earth bricks, integrated solar energy, decentralised water treatment and reuse.
Compressed earth bricks produced on site, cutting embodied carbon by up to 70%.
Integrated photovoltaics powering homes and shared community services.
Decentralised wastewater treatment with reuse for green spaces and urban agriculture.
An engaged company is defined by its convictions.
We take positions, commit our own capital, and stand behind every project we deliver.
Engineering that works in the real world — not on slides. Solutions must be buildable and profitable.
The transition cannot wait. Our hybrid model exists precisely to move faster than traditional structures.
Olivier Decherf is an engineer and environmental entrepreneur with over four decades of experience in sustainable development, environmental innovation and the energy transition. He has worked across engineering, renewable energy, environmental technologies and carbon strategies, combining technical expertise with a strong understanding of the challenges facing businesses and communities.
As the founder of Envirogroup, Olivier brings together practical engineering and strategic investment to accelerate the transition towards a low-carbon and sustainable economy.
His work focuses on turning environmental challenges into practical opportunities for innovation, investment and long-term impact.
“We don’t just engineer the transition. We invest in it — with our skills, our capital and our name.”
Envirogroup
190 rue Topaze
13510 Eguilles — France
Access Habitat Sustainable Africa designs and delivers carbon-neutral residential eco-districts across Africa: compressed earth brick construction, integrated solar energy, and decentralised water recycling — all working as one living system.
Every Access Habitat Sustainable Africa district is engineered as an integrated ecosystem — where homes, energy and water sustain each other.
Produced on site from local soil. Non-fired, cement-light, naturally cool — dramatically cutting the carbon footprint of every wall we raise.
Rooftop and community-scale photovoltaics power homes and shared services, delivering energy independence and predictable costs.
Compact, low-energy treatment plants treat greywater and blackwater on site — no oversized sewers, no pollution, no dependency.
Treated water irrigates parks, gardens and urban agriculture, turning every district into a cool, green, productive landscape.
Africa will host a quarter of humanity by 2050. Its cities are growing faster than any in history — and how they are built today will lock in emissions for decades.
Access Habitat Sustainable Africa proves another path is possible: affordable, dignified housing built from the soil beneath our feet, powered by the sun above our heads, and nourished by water that never leaves the neighbourhood.
Low-carbon. Circular. Locally owned.
A proven, replicable delivery model — developed jointly by our multiskills consortium members.
Soil analysis, masterplanning and energy/water modelling tailored to each site and climate.
Local teams operate brick presses, creating skilled jobs and eliminating material transport emissions.
Homes rise alongside solar arrays and compact water-treatment units — one integrated build.
Treated water feeds green spaces; solar lowers bills; residents inherit a circular neighbourhood.
Access Habitat Sustainable Africa unites French engineering and sustainability expertise with Senegalese construction and development mastery, guided by a Malian architecture practice rooted in West African design.
“The greenest building material is the one already under your feet. The cheapest energy is the one falling on your roof. The smartest water is the water you use twice.”
Investors, municipalities, developers and technical partners — let's shape Africa's low-carbon housing future together.
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