Best consultancies

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.

Check our #SustainableCharter on the website for more information.

We support sustainable frontrunners in the following areas: Agri-food, Sustainable finance, Sustainable Transport, Energy Storage, Carbon Direct Removals, Industry De-fossilisation, Sustainable Build Environments and Circular Economy.

With our clients and other mission-aligned actors we sit and work together to raise the bar on EU climate and environmental policy out of #SustainableHub – also known as the Permanent Representation of Sustainability to the EU.

Our impact in these first 4 years has been acknowledged several times, most recently when Corporate Vision awarded us as the Best Global Sustainability-Focused Public Affairs Agency 2023 in their Global Business Awards.

Ownership Structure

SPRL with Willem Vriesendorp as only shareholder.

Key Strengths

#SustainablePublicAffairs’ unique approach is based on three values:

Our first value is positivity. We work with positive energy, and always in favour of the cases we advocate for. We try never to emit negative energy and will never act against others, nor do we speak badly about competitors.

Integrity is standing up for what you believe in. As professionals, we only work for societal outcomes that we would want to see as private citizens as well. It means also that we recognize that while many sustainability gains will come from the cases we advocate for, it is always more sustainable to just consume, and subsequently produce, less.

Autonomy means that we do cases because we want to change the legislative framework. That is our purpose, and we are guided by that. Our clients are our partners to help get there / and not the other way around. We provided our own input to the EU 2040 targets and will always act in accordance with those objectives.

Number of Public Affairs Consultants


Key Clients

Examples of our clients / projects are: Sustainable Banking Coalition, Environmental Defence Fund, Sympower, Topsoe, Ecocem, Upfield, Innargi, LKAB, Resortecs, Corbion, IBMA, etc. etc.

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.

Best in Brussels 2023/24 Report

Best in Brussels is the first and only independent resource for organisations wanting to identify, compare and choose the best partners in Brussels for their advocacy needs.