De Groene Jongens

De Groene Jongens is a multidisciplinary sustainability advisory firm dedicated to accelerating the transition to a circular, energy‑efficient, and healthy built environment. From early design stages through renovation and construction, the organisation supports clients in making informed choices that reduce environmental impact, lower carbon emissions, and improve long‑term performance. De Groene Jongens integrates sustainable principles across energy optimisation, circularity, environmental health, and future‑proofing of buildings, offering services such as sustainability certifications (e.g., GPR Gebouw, BREEAM‑NL), performance calculations, energy transition planning, circular building strategies, and subsidy guidance. With nearly a decade of experience and a diverse team of specialists, they help deliver sustainable solutions that balance environmental, social, and economic goals, building toward a CO₂‑neutral and resilient built environment.