elfnullelf has long-term experience in collaboration with enterprises, associations and institutions from with different backgrounds. We also cultivate a close exchange with members of parliament as well as other officials – in Berlin and elsewhere.

For associations we offer strategic consulting and an office base in the midst of Berlin. The latter can be scaled up to an full-service package. We also accompany our clients on daily bases at their business with politics and the media.

Our services for enterprises ranges from political analysis/monitoring, new strategic approaches up to stakeholder management and implementation of various measures on all policy levels: EU, federal, and urban.

Here you find an abstract of current and past clients:

Bitburger Braugruppe GmbH

Bundesstiftung Baukultur

Bundesverband CarSharing e.V. (bcs)

Bundesverband Deutscher Versandapotheken e.V. (BVDVA)

Bundesverband Patientenindividueller Arzneimittelverblisterer e.V.  (BPAV)

Covestro AG


Hansa Armaturen GmbH

Interessenverband Kommunaler Krankenhäuser in Deutschland e.V. (IVKK)

Klax – Gruppe

Partner für Wasser

Reemtsma Cigarettenfabriken GmbH

Segway Deutschland GmbH

Sportfive GmbH – Sportrechtevermarktung

Verband 3DDruck (V3D)

Verband der Osteopathen Deutschland e.V. (VOD)

Verband der deutschen Rauchtabakindustrie e.V. (VdR)

Verband Deutscher Architekten- und Ingenieurvereine e.V. (DAI)

Votum – Verband unabhängiger Finanzdienstleistungsunternehmen in Europa e.V.


Who are the heads behind elfnullelf? This question we are pleased to answer. You want to know who takes repsonsibility for what issue.

We are a highliy motivated team with degrees in political and communication sciences. Udo Sonnenberg signs primarily responsible.

Udo Sonnenberg, M.A

Executive Partner


Fabian Haun, M.A.

Executive Partner

Paul Henn, MSc.

Public Affairs Consultant

Paul Henn | elfnullelf GmbH

Marian Blok, M.A.

Public Affairs Consultant

Johanna Weirauch, B.A.

Public Affairs Consultant

Jonas Pohl

Consulting Analyst


How to get in touch?

Give us a call, send us an email, subscribe our frequent news, contact us on our various social media channels:

Twitter, Facebook, YouTube – as you like!

Also possible: Writing a classic letter and sending it by snail-mail…

phone +4930 400 54 100

elfnullelf GmbH
Albrechtstrasse 13
10117 Berlin - Germany

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