03.09.2025
imug | csr joins :response
Now it’s official: imug | csr is now part of :response! good response GmbH has acquired the consulting team of imug GmbH as well as the imug brand. All activities will continue under the :response brand in future. The market research activities carried out under the name imug | research are not part of the takeover.
This brings together two pioneers in the sector: imug is Germany’s oldest sustainability consultancy, founded in 1992 as the Institute for Market, Environment and Society, whilst Arved Lüth founded :response 18 years ago, also as a ‘pure play’ for sustainability consultancy. With over two decades of experience in the fields of sustainable finance and real estate, imug | csr is one of the most renowned sustainability consultancies in the German-speaking world.
“This acquisition sends a strong signal: we are growing through our own strength, and our clients benefit from additional expertise and many years of experience. The imug team is a perfect fit for the :response team. What unites us is more than just a shared market. It is the conviction that corporate sustainability always prevails when it is effective, economically successful and credible. We look forward to our future together.”
Arved Lüth, Managing Director of good response GmbH
“We are delighted to be able to contribute our long-standing expertise in a broader context going forward – with :response as a key player in sustainable transformation. More expertise, more perspectives, more impact.”
Stefan Dahle, member of the management board at good response GmbH and former managing partner at imug Beratungsgesellschaft
good response GmbH, with offices in Frankfurt, Hanover and Berlin, operates under the brand name :response, serving small and medium-sized enterprises, large international corporations and the public sector. The multidisciplinary team works with its clients on a range of topics, including sustainability strategy, ESG reporting, climate risks, decarbonisation, carbon accounting, sustainable finance, sustainable supply chains, circularity and sustainable local authorities.
Do You Have Any Questions About Integration? We’d be happy to answer them.
Please feel free to contact us using the contact details at the bottom of the page.
