Not every sustainability challenge requires an in-depth analysis or an extensive roadmap. Sometimes, some quick advice or feedback from an expert is what you need. Our online consulting service offers easy and affordable access to our 20+ years of expertise in systemic, sustainable development.

Choose from three services, a transparent fixed price and no hassle.

  • An Expert Call is as simple as grabbing the phone and talking to one of our experts for advice.
  • An Expert Review is for questions that require a bit more research to answer, such as a document review or second opinion.
  • In a Team Session, three of our experts work with you to review your challenge (approx. half a day.)

See below for details. We also offer package deals for organizations and teams.

What areas can we help you with?

Our multidisciplinary team provides expertise in diverse sustainability-related fields, including:


Strategy, Corporate social responsibility (CSR), Environmental, Social, and Corporate Governance (ESG)


Circular Economy, sustainable materials, and Life Cycle Analysis (LCA)


Sustainable business models and Market research


Sustainable Investing


Systems thinking and systems mapping


Urban design, Sustainable Buildings, Building materials, and technologies


Sustainable Agriculture and Biological technologies


Sustainable Energy, Materials, and Mobility


Information Technologies

  • Except’s teams always give us new perspectives and insight that accelerate our projects. They collaborate very well during the process and create outstanding work.

    Jaap Bosch

    Project Developer Eneco Wind

Get started

Expert Advisory Call

For an expert opinion regarding any of your sustainability challenges, simply book a call with one of our professionals.

How does it work?

  • Fill out the questionnaire
  • We select an expert to suit your question
  • Book a call, and pay only for 10 minute increments

Price per 10 minutes: € 20,-

Book now

Expert Review

If you’re in need of an expert review, including a review of documents, research, concept, or a calculation, book an expert review session at a fixed price.

How does it work?

  • Fill out the questionnaire
  • Our expert contacts you to book an intake call
  • During the intake call, discuss your challenge with the expert (20 mins)
  • The expert reviews and/or researches your case and sends you a short written summary of the results (max 1.5 hours)
  • Call with the expert to review the results (max 1 hour)

At a fixed price of €450,-

Book now

Expert Team Session

In a team session, you work together with 3 of our experts for half a day to analyze your challenge, and work towards an answer.

How does it work?

  • Fill out the questionnaire
  • We will contact you to book an intake-call
  • In the call, discuss your challenge and expectations, so that we can choose the most effective team for your desired outcome (20 mins)
  • Join the online co-creation session with 3 of our experts (4 hours)
  • You receive a short written summary with the results of the session

At a fixed price of €1200,-

Book now

All prices are excl. 21% VAT where applicable. We work according to the general conditions of the DNR2011.

Package deals for organizations

For teams and larger organizations, we offer a low-threshold way to have experienced sustainability knowledge at everyone's fingertips. With our custom package deals, your team members simply have to pick up the phone to call us, and we'll take care of the administration and billing. And you'll get a nice discount at the same time.

Contact us to discuss your requirements at


Have a question?

If you have any questions regarding the Online Sustainability Consulting service, you can contact us.

Contact us