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About #SustainablePublicAffairs

Brussels Office Since


Firm Description

#SustainablePublicAffairs is a first-of-its-kind public affairs agency that only conducts business that has a positive impact on the environment.

It assists companies and organisations that go beyond current environmental standards and that want to raise those standards to gain a competitive advantage and capitalise on their sustainability lead.

It helps such “sustainable frontrunners” make their practices the market norm through EU policy, and only lobbies for cases that have climate positive impact.

Its mission is to foster policy-driven growth for sustainable business cases. These are more than just words: #SustainablePublicAffairs is the first EU public affairs agency to have its positive impact on society and the environment certified by B Corp.

Ownership Structure

SPRL with Willem Vriesendorp as only shareholder.

Key Strengths

#SustainablePublicAffairs’ unique approach is based on three key pillars:

  1. Quality: #SustainablePublicAffairs attracts the best consultants, as today’s top talent is motivated primarily by working for a purpose.
  2. Impact: #SustainablePublicAffairs focusses on sustainability in a holistic way. This helps transversal thinking across different aspects related to sustainability, leading to better, more creative approaches for clients. – and henc more positive impact.
  3. Authenticity: Choosing to work with #SustainablePublicAffairs demonstrates a clear intention of its clients: they want to “walk the talk” on sustainability and avoid conflicts of interest. This integrity helps them build trustedconnections with EU Institutions and other relevant stakeholders.

Number of Public Affairs Consultants

13 consultants incl founder

Thought Leadership

#SustainablePublicAffairs is the first purpose-driven public affairs agency that only takes on climate-positive cases and is guided by its #SustainabilityCharter.

This pioneering (thought-)leadership has been recognised by and featured in news outlets like Politico and Le Monde, and by clients and fellow thought-leaders on several other occasions.

The insights of #SustainablePublicAffairs are regularly reported on in Carbon Pulse, MLex, Financieel Dagblad, and other leading media.

#SustainablePublicAffairs also takes a keen interest in academic thought leadership – an example being its contribution (as only the public affairs agency) to the Concurrences handbook on Competition Law, Climate Change & Environmental Sustainability.

Testimonials and why clients like to work with us

Because it is always better to let others speak about you, than to speak about yourself, please see the advert for the full version of testimonials!

All other clients are willing to give positive testimonials upon request.

“It is not an easy task finding a public affairs agency that supports frontrunners for sustainability as its core business. Working with the team of #SustainablePublicAffairs was definitely a success story for us, and we are grateful for the continuous and hard work they have put in helping us achieve our goals.”

WWF Mediterranean Initiative

“They are helping us build relationships with top decision-makers in Brussels and advocate for ambitious climate innovation policy. Besides being very good at what they do, our mission alignment on decarbonisation means they’re thinking the same way we are.”

Cleantech for Europe

Apart from strong expertise on the content of the relevant policies, their team had proven track record in association affairs, which for us was a critical requirement. Based on our cooperation, I would not hesitate to recommend #SustainablePublicAffairs to other association leaders.”


“ I had a lot of expectations and they have delivered above and beyond since day 1. With them by our side, I am confident that we can make a difference in the EU policies for the green and digital transition of the Built Environment.”


I must say that we are more than satisfied about our cooperation with #SustainablePublicAffairs. The whole team is very professional and pleasant to work with and has been excellent in understanding and representing our business, pointing us to the right information and opportunities and in connecting us to the right people. #SustainablePublicAffairs lives up to their reputation in every way.”


“Our collaboration thus far has been an energizing and successful experience, whether through insightful policy analysis or by exploring new lines of communication with peers and policy-makers alike. It’s an inspiring thought that one day all public affairs will look like this!”


“We believe that working with them also says something about us and our commitment to competitive sustainability!”


“Public affairs doesn’t always have a good ring to it, so when we wanted to hire a public affairs agency, we wanted to be sure it had the same vision on sustainability. That is why we engaged #SustainablePublicAffairs.”


Because it is always better to let others speak about you, than you speak about yourself: Please see our advert for the full version of the testimonials!

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