ESG Report 2025
Working together to create lasting value for people, places and planet
“Real progress is created when people move in the same direction. Despite uncertainty across the sustainability landscape, our commitment remains unchanged: to work collaboratively, act responsibly and create lasting positive impact through the decisions we make every day.”
Dr. Birgit Memminger-Rieve, Managing Director
Rewilding Europe: Apennines, Italy
In September 2025, eight members of the team travelled to Italy’s Central Apennines, known as the “wild heart of Italy,” to experience firsthand the work being carried out by Rewilding Europe. Staying true to our commitment to low-carbon travel, the team journeyed entirely by land through the Alps, stopping in cities including Verona, Bologna and Rome along the way.
During the trip, the team explored freshwater ecosystems, visited a crayfish breeding station and helped release young, white-clawed crayfish back into mountain streams. They also worked alongside local experts in Pettorano, checking camera traps and learning about conservation efforts to protect the rare Marsican brown bear, one of the world’s most endangered bear species.
The experience highlighted the importance of biodiversity restoration and strengthened our belief that the future of the built environment must work in harmony with nature. The visit further reinforced our long-term partnership with Rewilding Europe and its commitment to positive environmental action.
Our Achievements
In September, six members of the team travelled by train to the Rewilding Oder Delta landscape. During their visit they supported the Oder Delta team in Glashütte by removing old fences and tackling invasive plants. They also crossed into Poland, where they joined a river clean-up by canoe in Police, collecting rubbish from the water before finishing the day with a well-earned team BBQ.
They stayed once again at Haffhus, a beautiful resort on the Stettin Lagoon, which also hosted our Sommerfest in 2024.
Hands-on experiences like these are part of our commitment to supporting rewilding and form an important part of connecting our work in real estate with the urgent need to restore biodiversity and tackle climate change.
In September, six members of the team travelled by train to the Rewilding Oder Delta landscape. During their visit they supported the Oder Delta team in Glashütte by removing old fences and tackling invasive plants. They also crossed into Poland, where they joined a river clean-up by canoe in Police, collecting rubbish from the water before finishing the day with a well-earned team BBQ.
They stayed once again at Haffhus, a beautiful resort on the Stettin Lagoon, which also hosted our Sommerfest in 2024.
Hands-on experiences like these are part of our commitment to supporting rewilding and form an important part of connecting our work in real estate with the urgent need to restore biodiversity and tackle climate change.
In 2025, Green Building Certifications still dominated service demand, accounting for 38% of business (down from 48% in 2024), with a focus on BREEAM certifications followed by LEED® and DGNB.
Unlike in other years, most of the revenue was generated in 2025 with Energy Performance Certificates (EPC) followed by BREEAM for existing buildings in Germany and GRESB consulting, altogether accounting for almost 49% of our revenue.
For the coming year, we expect to see rising demand for certifications (focus on existing buildings, but also new builds). Through new-build certifications (and ESG monitoring), we hope to strengthen the area of materials and circularity. Climate risk analysis as a service will also gain in importance.
GBCI Europe Circle: Prague
In May 2025, members of the EnviroSustain team travelled to Prague for GBCI Europe Circle 2025, one of Europe’s key events focused on sustainability in the built environment. As a Gold Sponsor, the team played an active role throughout the week, contributing to discussions, workshops and networking sessions centered on the theme “From Innovation to Impact.”
While some colleagues took part in the conference, others joined a dedicated team-building retreat, creating a week that combined professional exchange, shared learning, and time together as a team.
Sustainability was embedded throughout the trip, particularly in how we travelled. One colleague, Daniel, cycled over 400 km from Berlin to Prague via the Berlin–Dresden route and the Elbe Cycle Route. The rest of the team travelled by train and a company electric vehicle. Once in Prague, we continued to prioritise low-impact mobility, walking, cycling, and using public transport.
Goals for 2026
We will celebrate our 25th anniversary by creating dedicated time together as a team, recognising the people and relationships that have shaped EnviroSustain over the last 25 years.
We will continue to embed sustainability and positive impact into our decision-making, focusing on meaningful action and long-term value creation.
