SUSTAINABILITY SUPPORTTRAININGADVISORSPARTNERS

Specialists in energy and ESG who embed into your company and your assets,delivering practical expertise, efficient support, and effective training.

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About Us


Walvius Partners sits between external consultancy and professional secondment. We bring the expertise, exposure, and delivery capacity of a specialist advisory firm, while operating inside your organisation as true colleagues – transparent, accountable, and integrated into day‑to‑day operations.

We support commercial real estate companies with practical sustainability expertise, hands‑on delivery, and the ability to embed directly into teams. Our clients value us because we are not a traditional consultancy: we work alongside your in‑house staff, understand commercial realities, and take ownership of results. Our approach is collegial, adaptive, and built on long-term partnerships.

Our team is experienced, agile, and supported by a trusted European network, allowing us to scale across markets while remaining deeply operational. We fill the capacity and capability gap that many organisations experience, ensuring sustainability is embedded across all disciplines rather than treated as a silo.

At Walvius Partners, we work within your organisation — not outside it — combining specialist knowledge with the practical ability to improve performance, optimise systems, coordinate external experts, and manage sustainability delivery within a single accountable structure.

Our Mission


Support the development of companies and assets to sustain progress in a changing environment.

Our Vision


Sustainability evolves to truly become a way of working, not a discipline or siloed department.

Our Values


  • Collaboration: We inject our expertise into the client’s business practices.
  • Accountable: We see our work implemented and take ownership of outcomes.
  • Longevity: We build long-term relationships to reach long-term goals.
  • Down-to-earth: We work pragmatically within the client's commercial realities.
  • Integrity: We earn trust through strong ethics and protect our clients’ intelligence.

Our Team


Walvius Partners is led by Steffen Walvius, Founder and Director of Asset-Level Services; Tjidsger Wierda, Director for Corporate-Level Advisory; and Franklin Walvius, Internal Operations Director. Together, they combine strategic vision and hands-on expertise, supported by a strong core team and an extended network of independent consultants ready to step in when needed.

Martín Diaz

Martín Diaz

ESG Consultant

Tjidsger Wierda

Tjidsger Wierda

Partner

Franklin Walvius

Franklin Walvius

Partner

Lumír Prejda

Lumír Prejda

Analyst

Services


Embedding sustainability works best when activities are brought together with a Walvius Partner in your organisation. We deliver three integrated service pillars: STAND, STRIDE, and RAISE.

STAND

Services delivered at key moments in your company’s and assets’ lifecycle, whereby we embed Sustainability in Strategy, Transactions, Assessments, Negotiations, and Developments.

  • ESG strategy design and policy development.
  • ESG due diligence and audits with CapEx plans.
  • Materiality assessments (incl. DMAs in line with CSRD).
  • Building Certifications, assessments and framework alignment.
  • Design consultancy and green lease support.
Learn more about STAND.

STRIDE

A corporate-level engagement to drive Sustainable Transformation through Resource and Intelligence Development across your Enterprise, turning ambition into execution and demonstrating progress.

  • Sustainability partner embedded in your organisation.
  • Develop and implement strategy and processes.
  • Sustainability reporting, ESG data tracking, and accounting.
  • Ratings & benchmarking with gap analyses.
  • Training, research, and helpdesk support.
Learn more about STRIDE.

RAISE

An assetlevel operating model for your funds and asset managers towards Regenerative Asset Improvements with Sustainability and Energy-efficiency under one accountable structure.

  • Dedicated energy and sustainability engineer to support AM, PM, and FM.
  • Energy and occupancy comfort performance improvements.
  • Utility data, contracts, risks, and compliance management.
  • Certification management (e.g., EPC, BREEAM, WELL).
  • EU building passports, commercial opportunities & budgeting.
Learn more about RAISE.

Please contact us to learn about our sector-specific services for your portfolio and assets.

Our clients


We support listed and unlisted clients operating locally and pan‑European through long‑term partnerships. Below is a selection of clients whom we have the pleasure of serving.

Blog Posts


Explore our latest posts on sustainability advancements, industry transformations, and innovative solutions.

Sustainability: Stop Reporting, Start ActingUncategorized

25/05/2026 by tjidsgerwierda

Sustainability: Stop Reporting, Start Acting

Accountability without action doesn’t create impact. If you’ve done nothing, there is nothing to report, and paperwork alone won’t reduce emissions.

Read More

Transformation Beats Greenwashing Uncategorized

18/05/2026 by tjidsgerwierda

Transformation Beats Greenwashing

The EU’s proposed SFDR 2.0 reforms could finally recognise the true “green leaders” in commercial real estate—if we pair them with honest, transformation-focused reporting. For too long, the system has rewarded superficial metrics over real change. It’s time to shift the focus from portfolio optics to portfolio impact.

Read More

ESG: Short-Term Noise, Long-Term Survival Uncategorized

11/05/2026 by tjidsgerwierda

ESG: Short-Term Noise, Long-Term Survival

At a GRESB event last year, a speaker made a simple but powerful observation: ESG is irrelevant in the short term, but critical in the long term. It’s a statement that sticks with you, because it’s true! Sustainability doesn’t deliver quarterly wins. Its value lies in the risks you avoid over the decades, not the returns you report next month.

So why do we still focus on the short-term gain?

Read More

Get In Touch


Our commitment to sustainable development drives us, so feel free to ask about even the smallest requests. There's no need for overly formal messages. We aim to remove all obstacles between your aspirations and success.

Get answers and advice from motivated sustainability professionals

    Walvius Partners Main Office