About us

Giving shape to sustainability

Blonk Consultants is an international leader in the field of environment, sustainability, nutrition and health. We find solutions to your environmental and sustainability issues.

We give shape to sustainability through research, advice, the development of tools and databases, and the provision of training. Our efforts are geared to helping companies, governments and civil society organisations put sustainability into practice.

Our work is always based on quantitative analyses and independent data. This generates the open and transparent results that will be of most value to your business or organisation. .

Sustainability expertise for the agri-food sector

All our consultants are specialists in sustainability for the agri-food sector. They will provide you with clear, specific advice based on sound, independent research and ensure that results can be effectively put into practice. They draw on the considerable body of knowledge and experience we have built up over the years and on our extensive network of experts.
  • International guidelines: We work according to the latest internationally recognised guidelines and methods.
  • Clear foundation:Our qualitative and quantitative analyses are known for their clear and robust evidence base.
  • Courage and ambition: We have the courage and ambition to break new ground in search of new understanding.
  • No-nonsense approach: Our no-nonsense approach and independence enable us to identify relevant issues efficiently and effectively.
  • Small team: We offer a personal service that is flexible and responsive to your needs.
  • Extensive network: We can call upon an extensive network of experts in the business community, NGOs and civil society organisations.

Meet the team

We work with passion on your sustainability issues

Hans Blonk


Jasper Scholten

Business Unit Manager - Blonk Consultants

Bart Durlinger

Product Development Manager

Marcelo Tyszler

Business Unit Manager - Blonk Sustainability Tools

Elena Koukouna


Mike van Paassen

Data & model specialist

Paulina Gual

Senior consultant

Pieter van de Vijver

Senior software developer

Roeli van Kesteren

Office manager

Freija van Holsteijn


Janjoris van Diepen

Senior consultant

Riki Hissink

Software developer

Caroline te Pas


Nicolò Braconi

Data & model specialist

Meike van de Wouw

Manager marketing & communication

Lisanne de Weert


Damian Smits

Software developer

Laura Wolf

Sales consultant

Björn Kok


Davide Lucherini


Simone Hesseling


Daniele Castellana

Data & model specialist

Marjolein Jonges

Office manager

Cas de Mooij

Junior software developer

Wolfert de Kraker

Senior software developer

Marty Heller

Consultant US and Canada

Melissa Smith


Iana Salim



Work with us?

Vacancies & Internships

Currently we are looking for a Software Developer. Keep an eye on our website and Linkedin page for an actual overview.

For whom do we work?

Our customers