The Ocean Cleanup is developing world’s first feasible method to rid the oceans of plastic. The Ocean Cleanup’s goal is to extract, prevent, and intercept plastic pollution by initiating the largest cleanup in history.


STAFF: 25+



The Ocean Cleanup founded

MARCH 2014
Proof-of-concept barrier deployed in the Atlantic

JUNE 2014
Feasibility study published, indicating the concept is likely a viable way to clean up half the Great Pacific Garbage Patch

Most successful non-profit crowd funding campaign ever (US$ 2.2 million, 38,000 contributors, 160 countries)

United Nations awards founder Boyan Slat its highest environmental accolade

The Ocean Cleanup study proves ocean plastic is within reachable distances from the surface

MAY 2015
The Ocean Cleanup announces the Coastal Pilot

The Ocean Cleanup embarks on the Mega Expedition





Start of Cleanup


Boyan Slat

CEO and Founder

Boyan Slat (1994) is a Dutch entrepreneur and inventor who creates technologies to tackle global issues of sustainability. He is the founder and CEO of The Ocean Cleanup, where he is responsible for overall strategy and cleanup technology development.

Boyan Slat has been recognized as one of the 20 Most Promising Young Entrepreneurs Worldwide (Intel EYE50), and was crowned 2014 Champion of the Earth, the United Nations' highest environmental accolade. In 2015, HM King Harald of Norway awarded Boyan the maritime industry's Young Entrepreneur Award, and Foreign Policy magazine included Boyan in their 2015 list of Global Thinkers.

Michael Hartnack


Michael Hartnack (1972) has 20 years experience as ethical venture capital investor and financially-focused business (strategy) consultant. He is a qualified Chartered Accountant. Michael began his career at KPMG (1995 - 2007) where he specialised in advising high-growth businesses (or their investors) in the context of mergers and acquisitions. For the last decade he has worked almost exclusively with (and is passionate about) high-potential businesses which deliver environmental or social returns. As CFO he is responsible for the foundation’s sound financials and in charge of all financial flows.

Lourens Boot

Engineering Manager

Lourens Boot (1974) studied civil and offshore engineering at Delft University of Technology. After completing his studies, Lourens has worked for 12 years in the large oil and gas corporate business. He was stationed on several locations in Europe, Asia and Africa, managing projects for Schlumberger and Shell. After those 12 years Lourens decided to direct his focus to clean technology. At The Ocean Cleanup his role is to lead the engineering team in designing, testing and building the system that will capture and retrieve plastics from the oceans.

Julia Reisser

Lead Oceanographer

Julia Reisser (1984) leads the oceanographic team and the ocean plastic research expeditions. She is responsible for increasing the knowledge on mass, distribution, and impacts of plastics across the world’s oceans. Initially starting her academic career in Brazil, she then moved across the world to do her PhD in Oceanography at the University of Western Australia. Her research focuses on understanding how ocean physical processes influence plastic pollution and marine life. Julia has led many research expeditions in the Atlantic, Pacific, Indian and Southern Oceans, resulting in 15 publications on plastic pollution and biology topics to date.

Supervisory Board


Technology and R&D

Frederik Gerner is co-founder and shareholder of Ampelmann Operations BV, currently managing director Asia Pacific at Ampelmann.


Funding and Finance

Evert Greup is ex-CEO VvAA groep, ex-CEO Kempen & Co, and prior to that investment manager at Nationale-Nederlanden.


Project Management and Organisation

Frans Ratelband is a former senior management consultant for KPMG and a founding partner of Organics management consultancy.



Ocean Engineering

Lourens Boot
Engineering Manager

Mark Paalvast
Hydrodynamic Analyst

Willem van Schoten
Hydrodynamic Analyst

Robert Kamp
Senior Analyst/Project Manager

Jetteke Flick
Research Engineer Intern

Arthur Tanis
Research Engineer Intern

Bram Delfos
Research Engineer Intern

Reijnder de Feijter
Research Engineer Intern

Maritime Research

Julia Reisser
Lead Oceanographer

Francesco Ferrari
Lab Coordinator

Bruno Sainte-Rose
Lead Computational Modeler

Serena Cunsolo
Research Assistant

Rosanna Schöneich-Argent
Research Assistant

Aurore Levivier
Research Assistant

Pavla Debeljak
Research Assistant

Roberto Brambini
Research Engineer Intern

Merel Kooi
Research Assistant Intern

Project Execution

Rick Martini
Offshore Specialist

Special Projects

Eline Spek
Project Manager

Jan-Willem Damsteeg
Systems & Control Engineer,
Special Projects

Sjoerd Drenkelford
Mechanical Engineer,
Special Projects

Dieke van der Gugten
Mechanical Engineer, Special Projects

Jeremy Nijk
Engineer Special Projects

Peter Spielmann
Intern Special Projects

Marketing and Communications

Ianthe Dickhoff
Communications Manager

Service Center

Michael Hartnack

Femke Hoes
Financial & Legal Coordinator

Peter van Eersel
Financial Advisor

Jenke Heeke
Head of Office


To support our professional team a team of volunteers is helping The Ocean Cleanup on a regular basis or during projects and events.

Marketing and Communications

Manissa Ruffles
Speaking Coordinator

Sabrina A. Roy
Social Media Coordinator

Joost Niepoth
MarCom Advisor

Jonas Hermann
Graphic Designer

Lucas Körner
Graphic Designer

Robin Bugdahn
Graphic Designer

Hans van Piggelen

Lenneke Karlas
Email Communications

Rachel Los
Marketing and Communications Activities

Sandra Quirijns
General Assistance


Maritime Research

Leonid Pavlov
Computational Studies Advisor

Simone Manuputty 
3D CAD Support 

Bettina Boschen
Lead Maritime Law Researcher

Mirjam van der Mheen

Moritz Schmid
Data Analyst

Bart Sturm
App Developer

Ocean Engineering

Herm Bussemaker
Naval Architect

Hans Muller
Advisor Project Management

Sergio Castellanos

Michiel Kruijff
System Engineering Advisor

Wim Poel
General Assistance to the R&D dept

Jacob Janssen
General Assistance

Martin Bakker
Assistant Special projects

Bart Kaas
General Assistance to the R&D dept 

Brody Lee
General Assistance to the R&D Dept 

Kauê Pelegrini
Process Engineer

Rosmary Brandalise
Process Engineer

Diego Piazza
Process Engineer

Special Projects

Paul Lubbers
Advisor Business Development

Mark Ruessink
Research Engineer

Dmytro Tereshchenko

Marton Mazzag

Marco Kloet
Prototest Assistant

Service Center

Legal & Finance

Monique van de Graaf
Legal Counsel

Shuyu Huang
Legal Counsel

Anna van Duin
Legal Counsel

Pauline Phoa
Legal Counsel

Anouk Stevelmans
Legal Counsel

Martijn Stuart
Legal Counsel

Rutger Arisz
Legal Counsel

HR, IT & Facilities

Steven Bink
IT Coordinator

Maarten Eekels
SharePoint Consultant

Dennis Rosenbach
Salesforce Consultant

Rempko de Bie
IT Support

Mary Adner

Kim Rybarczyk

Frank van Lent
Database Architect

Etienne Schweistries
General Support

Frank Stofberg
General Support

Bart Nauta
General Support

Tjeerd Hoes
HR Advisor


Colomba Grolleau
Translator French

Jaime López
Translator Spanish

Patricia Schiavone
Translator Spanish

Pauline Horng BSc
Translator Traditional Chinese

Norbert Eggermont
Translator German

Tina Conrad
Translator German

Anne-Marie Vermunt
Translator English

Aya Sadahiro
Translator Japanese

Maloe de Goeij
Translation Activities

Christiaan Schilling
Translation Activities

Tim van Kinderen
Translation Activities

Jurrien Theunisz
Translation Activities