In October 2009, Ecofys Poland Sp. z o.o. became a member of the international planning-engineering group Aveco de Bondt, and changed its name to Primum Polska Sp. z o.o.

Primum Polska continues to offer services in the field of energy and climate change policy studies, development and implementation of energy and climate change protection projects for communities, housing corporations, industry and energy companies. The company carries out a wide range of energy advisory services for Polish and international clients, the main focus being on energy efficiency and renewable energy. The company has coordinated and participed in many EU-funded projects and has good expertice on promotion/educational activities in the energy field.