Insights Office


Kopp-Assenmacher & Nusser Partnerschaft von Rechtsanwälten mbB is a young, dynamically growing law firm. Both our partners and the majority of our lawyers have long-standing experience in the fields of environmental, planning and product law.

Founded in Berlin in 2016, Kopp-Assenmacher & Nusser was established by Stefan Kopp-Assenmacher (professional lawyer since 1999) and Dr. Jens Nusser (professional lawyer since 2005). Both founders had previously worked as partners in various supra-regional law firms focussing on environmental, planning and product law. In early 2019, the law firm established a further office in Düsseldorf and recruited the lawyers Gregor Franßen, EMLE, and Dr. Henning Blatt as partners.

The law firm’s team also comprises a series of experienced and distinguished lawyers at the Berlin and Düsseldorf offices who specialise in the law firm’s priority fields – environment, planning and products. Further information is available in the staff biography section at Lawyers.

Kopp-Assenmacher & Nusser Partnerschaft von Rechtsanwälten mbB is active on behalf of SMEs and industrial enterprises, DAX-listed corporations, associations, public enterprises, ministries and authorities. Further information about the firm’s specialisation and range of advisory services is available at Competences.


Legal precision, integrity and entrepreneurial responsibility are the guiding principles that inform all of our legal activities. Bound by loyalty and fair-mindedness, we seek and find solutions for our clients and avoid creating any fresh problems. Our clients’ aims are achieved by joint effort.

Abiding by these principles, Kopp-Assenmacher & Nusser Partnerschaft von Rechtsanwälten mbB offers top-quality legal advice in the field of public commercial law.

We provide our clients with personal, specific assistance and have access to an extensive network of engineering firms, associations and federations.
Via presentations and specialist publications, our lawyers contribute to the development of environmental, planning and product law.

Social responsibility

The partners and lawyers at Kopp-Assenmacher & Nusser Partnerschaft von Rechtsanwälten mbB are jointly committed to meet the law firm’s social responsibilities. We make donations and other contributions to support social projects. In 2018, among other projects, we made a donation to Verein Lebenswert e.V. Potsdam which organises assisted living for dementia patients.


In October 2018, Kopp-Assenmacher & Nusser was awarded the “Kanzlei des Jahres für Umwelt & Planung 2018” prize (environmental & planning law firm of the year 2018) by JUVE, Germany’s leading professional journal for commercial law firms. The JUVE awards, which are among the most coveted awards in the German law firm industry, are presented to highly innovative firms with a special market presence. Kopp-Assenmacher & Nusser is also among the five German law firms JUVE had nominated for its “Kanzlei des Jahres für Regulierte Industrien 2018” award (regulated industries law firm of the year 2018).


„Our activities are defined by responsibility for humankind and nature.“

Stefan Kopp-Assenmacher, lawyer