Sustainability experts for the agri-food sector

Blonk's growing team consists of agri-food and sustainability experts, software developers, and data and methodology specialists. We are all passionate about building a sustainable and healthy society.

Team Blonk will provide you with clear, tailored advice and smart software solutions based on sound, independent research. As such, you can put results into practice effectively.

We draw on the considerable body of knowledge and experience we have built up over the years and our extensive network of experts.

Meet our people

Hans Blonk
Director | Blonk

Hans is the founder of Blonk (established in 1999). He is a biologist graduated from Leiden University and was one of the developers of the first LCA methodology in the Netherlands. Over the years he has made important contributions to the development of LCA and Carbon Footprinting methods for agri-food products.

Jasper Scholten
Business Unit Manager | Blonk Consultants

Jasper has over 12 years of experience in consultancy and research with regards to environmental and sustainability issues of food production systems. At Blonk he manages the consulting department.

Marcelo Tyszler
Business Unit Manager | Blonk Sustainability Tools

Marcelo has over 20 years of experience in consultancy, applied research, and data science in agro- and behavioral economics, environmental and economic sustainability, and international development. His specialty is to translate complex problems into feasible solutions and applications.

Bart Durlinger
Product Development Manager | Blonk Sustainability Tools

Within Blonk Sustainability Tools Bart manages the Software Development and the Data and Methodology team. He translates client wishes into user friendly software solutions and applications. 

Elena Koukouna
Consultant | Blonk Consultants

Elena is a sustainability consultant with an educational background in industrial engineering and ecology. She has more than 6 years of work experience in consulting multinational and international companies on achieving business competitiveness while placing sustainability in the front-line. She is an expert in performing life cycle assessments. She is also very skilled in developing learning material and providing trainings to professionals.

Meike van de Wouw
Marketing & Communication Manager | Blonk

At Blonk Meike is responsible for all marketing communication related activities, such as websites and newsletters. She has a background in marketing communication and graduated from Wageningen University and Research. 

Mike van Paassen
Data & methodology specialist | Blonk Sustainability Tools

Mike has a background in Chemical Technology (BSc) and Industrial Ecology (MSc). At Blonk he is mainly involved in the development and maintenance of Feed and Food consumption databases. In addition he supports consultants in data generation and the IT team in implementing methodology into various projects and tools.

Roeli van Kesteren
Office manager | Blonk

Roeli is our office manager, she is responsible for the daily operations at our office. You will meet Roeli when you call the office. Besides that, she arranges everything related to invoicing. 

Paulina Gual
Senior Consultant | Blonk Consultants

Paulina is Senior Consultant at Blonk and has been working at Blonk since 2017. She has a degree in Chemical Engineering and graduated from an MSc in Industrial Ecology from TU Delft and Leiden University. Within Blonk she coordinates various projects with clients. 

Pieter van de Vijver
Consultant | Blonk Consultants

Out of curiosity and love for complexity Pieter studied physics and neuroscience. He worked in software development and is now part of Blonk's consultants team. 

Freija van Holsteijn
Consultant | Blonk Consultants

Freija is part of our consultants team. She studied Animal Sciences at Wageningen University and Research, where she became very increasingly concerned by the environmental impacts of our food production system. 

Riki Hissink
Software developer | Blonk Sustainability Tools

Riki Hissink has a background in Environmental & Sustainability sciences (MSc) and software development. At Blonk she translates complex sustainability questions into user friendly tools.

Janjoris van Diepen
Senior Consultant | Blonk Consultants

As a senior consultant, Janjoris is responsible for account and project management within Blonk. Janjoris is leading sustainability target setting projects and projects related to carbon footprinting and monitoring. He is primarily motivated by projects that connect the consultancy perspective with data and tool development and implementation at the customer.

Caroline te Pas
Senior Consultant | Blonk Consultants

Caroline has a background in Soil Sciences and Environment and Development. Caroline is mainly involved in quantitative analyses using LCA Impact methodologies, sustainable nutrition assessment and the development of tailored environmental calculation tools.

Nicolò Braconi
Senior Consultant | Blonk Sustainability Tools

Nicolò started as an intern at Blonk and currently he is a senior consultant within Blonk Sustainability Tools. He studied Food Technology at Perugia University and Wageningen University, where he specialized in Sustainable Food Process Engineering. 

Lisanne de Weert
Consultant | Blonk Consultants

Lisanne graduated in Mechanical Engineering and Industrial Design. Within Blonk she works on projects related to sustainable nutrition assessment and food and biobased LCAs. Besides that, she is experienced in the development of carbon footprint tools and automated LCAs.

Damian Smits
Software developer | Blonk Sustainability Tools

Damian has a background in Earth Sciences (Msc). At Blonk, he is part of the software development team. He is mainly involved in LCA related software, as well as translating data related questions to efficient tooling.

Björn Kok
Data & Methodology Specialist | Blonk Sustainability Tools

Björn is part of our Data & Methodology team of Blonk. Besides that, he also doing a PhD at the University of Stirling, where he studies the environmental impacts of aquaculture, with a focus on novel feed ingredients. 

Davide Lucherini
Consultant | Blonk Consultants

As a consultant, Davide mainly focuses on analyzing horticultural system. He is experienced in developing environmental footprinting tools and collaborated in the creation of LCA sector specific guidelines. He previously studied Environmental engineering and Sustainable development. Besides Blonk, he spends most of his time on music.

Simone Hesseling
Consultant | Blonk Consultants

Simone is educated as an industrial engineer at University of Twente, a study that encompasses technology, production and design. Within Blonk she is part of the consultants team. 

Daniele Castellana
Data & methodology specialist - Data scientist | Blonk Sustainability Tools

Daniele is one of our Data & Model Specialist. As a data scientist, he enjoys modelling and translating real-world problems in quantitative terms. He received a PhD in climate physics from Utrecht University.

Marjolein Jonges
Office manager | Blonk

Marjolein is our office manager, she is responsible for the daily operations at our office. You will meet Marjolein when you call the office.

Cas de Mooij
Junior software developer | Blonk Sustainability Tools

Cas is a junior software developer and graduated in Sustainable Energy Technologies at Delft University of Technology. 

Wolfert de Kraker
Senior software developer | Blonk Sustainability Tools

Wolfert is a senior software developer and graduated in Computer Science at Rotterdam University of Applied Sciences. At Blonk he translates complex problems into practical technical solutions.

Marty Heller
Consultant US and Canada | Blonk Consultants

Marty represents Blonk in the US and Canada. He supports existing projects while building new opportunities for Blonk to advise the agri-food sector in North America. Marty received degrees in chemical engineering from Michigan State University (BSc) and the University of Colorado at Boulder (PhD). During his post-doctoral research at Center for Sustainable Systems (CSS) at University of Michigan he started to conduct various agri-food related LCAs. 

Melissa Smith
Consultant | Blonk Consultants

Melissa graduated from a joint Master’s Program in Sustainable Development from both Uppsala University and the Swedish University of Agricultural Sciences (SLU). Within Blonk she conducts life cycle assessments and develops excel based tools to calculate carbon footprint.

Iana Salim
Consultant | Blonk Consultants

Iana has a master's degree in industrial ecology and a PhD in LCA of agricultural crops and bio-based products. Within Blonk, she works as a consultant on projects in the area of sustainable agriculture and animal systems. She is also involved in the development of standards related to field emissions from agriculture and land use change

Dieu Linh Hoang
Consultant | Blonk Sustainability Tools

Dieu Linh has a background in Environmental Sciences and Industrial Ecology. Her specialty is tackling the sustainability from systematic and quantitative perspectives.

Alessandra Grasso
Consultant - Sustainable Nutrition Specialist | | Blonk Sustainability Tools

Linking nutrition with agriculture and the broader food system has been a passion and focus of Alessandra's work. She did a PhD in sustainable nutrition at the Vrije Universiteit Amsterdam. Within Blonk Alessandra works on a variety of projects related to sustainable nutrition and diets.

Nynke Draijer
Consultant | Blonk Sustainability Tools

Nynke graduated in sustainable food process engineering. At Blonk she applies her skills in systematic thinking, data visualization and interpretation together with our clients. Next to working at Blonk she is doing a PhD on sustainable protein foods and their processes.

Lotte Ramekers
Software developer | Blonk Sustainability Tools

Lotte is a software developer with a master's degree in artificial intelligence. At Blonk she loves to find reliable solutions to complex technical problems.

Dennis Buijsman
Software developer | Blonk Sustainability Tools

Dennis is part of our software development team. 

Why work with Blonk? 

Integrity & reliability

Integrity is at the heart of our company. We don't support greenwashing and work with clients who encourage honest research and advice.

Expertise & experience

We are an international leader in environmental and sustainability research, specializing in the agri-food sector. We draw on 20+ years of experience in the field.

Extensive network

We call upon our extensive network of experts in the business and academic community for tailored advice.

Multi-disciplinary team

Our team of agri-food and sustainability professionals, LCA experts, software developers, and data and methodology specialists is passionate about building a sustainable and healthy society.

No-nonsense approach

We deliver clear and practical advice based on sound, independent research. We always get the job done and offer you the service value you deserve.

Courage & ambition

Our team has the courage and ambition to break new ground for tailored advice, aiming to create a sustainable, healthy planet for current and future generations together.

Want to know how we can help you give shape to sustainability?