DUMMENGROUP.COM - Key Persons


Alberto López Márquez

Job Titles:
  • Agente Exclusivo

Alejandra Calle

Job Titles:
  • Gerente De Ventas Rose

Anthony Christiaanse - CEO

Job Titles:
  • Chief Executive Officer
  • Member of the Executive Committee
  • Dümmen Orange As a Member of the Executive Committee
Anthony joined Dümmen Orange as a member of the Executive Committee in January 2024, and was appointed CEO in May of that year. He drives the company's strategic agenda to maintain its position as a global leader in floriculture and to provide our customers with innovative products and services that create sustainable value. Before joining Dümmen Orange, Anthony worked in various senior roles for a range of leading international companies such as Unilever, Chiquita, Aviko, and Vion. His career in the food and agribusiness spans over 30 years. Anthony lives with his partner, son and dog alternately in Edinburgh and Rotterdam. He is a big fan of Star Trek, gorillas and sports.

Bas Pellenaars

Job Titles:
  • Commercial Director LATAM

Carola de Bie - CFO

Job Titles:
  • Chief Financial Officer
  • Member of the Executive Committee
  • Dümmen Orange As Head
Carola joined Dümmen Orange as Head of Group Control in 2019, where she further professionalized the finance team. In 2024, Carola joined the Executive Committee as CFO, and in that role, she is responsible for Finance, Treasury, IT, and Tax.

Christa Boerlage

Job Titles:
  • Agent

Clemente Rodriguez

Job Titles:
  • Area Manager Spain & Portugal

Darío González

Job Titles:
  • Agente Exclusivo

Diane Surette

Job Titles:
  • General Manager Canada
  • Sales Contacts

Dümmen Orange

Job Titles:
  • Marketing & Administrative Office
Dümmen Orange is a leading global breeder and propagator of ornamental flowers and plants, offering an impressive portfolio of cut flowers, pot plants, bedding plants, and perennials to growers, wholesalers, and retailers around the world. Our headquarters are based in the Netherlands, and we employ over 6,600 people worldwide. Dümmen Orange was established in April 2015. Our company and its predecessors consolidate a long list of breeders and propagators worldwide, going back to companies founded as long ago as 1909 (Ecke Ranch, Encinitas, California).

East Africa

Job Titles:
  • Commercial Manager East Africa

Eladio López Márquez

Job Titles:
  • Agente Exclusivo

Ellen Mackenbach-Lakeman - CHRO

Job Titles:
  • Chief Human Resources Officer
  • Member of the Executive Committee
  • Dümmen Orange As CHRO
Ellen joined Dümmen Orange as CHRO in June 2020. Her responsibilities include building one company culture, establishing an integrated talent management approach that drives continuous growth of our employees, driving the Environmental, Social, and Governance (ESG) agenda, and leading the global Human Resources department. Before joining the company, Ellen worked in various global leadership positions in Human Resources in the chemical and distribution industry. She studied Law at Erasmus University in Rotterdam and holds a Master's degree in HR from Tias Business School, a diploma in Organizational Leadership from Said Business School (Oxford), and a diploma in HR from Marshall Business School (University of California). Ellen is married and has two daughters. Outside of working hours, she loves to spend time with her family, and you can also find her regularly in the gym or garden.

Frank de Vries

Job Titles:
  • License Manager

Frank Magnusson - COO

Job Titles:
  • Chief Operating Officer
  • Member of the Executive Committee
Frank has been with Dümmen Orange as a senior member of the North American region since 2012. With over two decades of industry experience, Frank has extensive expertise across Sales, Operations and Finance functions. During his Dümmen Orange tenure, Frank has led mergers and acquisitions (M&A) and integrations of more than a dozen companies including Ecke Ranch, Fides, and Dümmen USA, Inc. into what has become Dümmen Orange. Prior to his role as COO North America, he was vice president of Finance. Frank earned a Master's degree in Business Administration from Stockholm University, Sweden. He is married and has two children. Outside of work, he enjoys sports, reading and music.

Gert van Beek

Job Titles:
  • Account Manager Annuals & Perennials & Potplants

Gustavo Garces

Job Titles:
  • Account Manager Cut Mum

Hans Olij

Job Titles:
  • Crop Specialist and Account Manager Perennials

Hipólito González Blanco

Job Titles:
  • Agente Exclusivo

Ignacio Saa Pérez

Job Titles:
  • Agente Exclusivo

Ivo Groot

Job Titles:
  • Sales Contacts
  • Sales Manager Calla & Annuals EMEA

Jan-Ulrich Stegmann

Job Titles:
  • Sales NRW Südlich / Saarland / Rheinland - Pfalz Südlich

Jasper van den Berg

Job Titles:
  • Account Manager Pot & Bedding Plants

José Luis González Castell

Job Titles:
  • Agente Exclusivo

Juan Alejandro Guaqueta

Job Titles:
  • Guaqueta Trading

Juan Bautista García Sánchez

Job Titles:
  • Area Manager

Juan Camilo Hoyos

Job Titles:
  • Account Manager Cut Mum / Carnations / Limonium / Fillers

Jürgen Zwiehoff

Job Titles:
  • External Advisor

Kees de Graaf

Job Titles:
  • Crop Specialist Bulbs Worldwide
  • Sales Contacts

Marcelo Echeverria Troya

Job Titles:
  • Commercial Manager

Mark Duin

Job Titles:
  • Account Manager Bulbs Worldwide

Martien Vis

Job Titles:
  • Account Manager Cut Mum

Matthew Curtis

Job Titles:
  • Business Development Manager - Australia & New Zealand

Michel de Graaff

Job Titles:
  • Area Manager Brasil

Niels Pennings

Job Titles:
  • Sales Contacts
  • Sales Manager Rose & Gerbera

Paul Evers

Job Titles:
  • Account Manager Pot & Bedding Plants

Pedro Martinez

Job Titles:
  • Agente Exclusivo

Pere Herrera

Job Titles:
  • Agente Exclusivo

Perivar Braat

Job Titles:
  • Account Manager
  • Account Manager Rose & Gerbera

Peter Laurman

Job Titles:
  • Sales Manager Cut Mum

Peter Mwangi

Job Titles:
  • Commercial Manager East Africa

Peter van der Vorst

Job Titles:
  • Account Manager Cut Mum

Ralph van der Rassel

Job Titles:
  • Account Manager Pot & Bedding Plants

Reinoud Hagen

Job Titles:
  • Managing Director Cut Flowers
  • Sales Contacts

Rick Rabb

Job Titles:
  • Technical Support

Robert Melendez

Job Titles:
  • Sales Manager Bulbs West Coast & LATAM

Socorro Martinez

Job Titles:
  • General Manager

Sven Straeten

Job Titles:
  • Product Business Development Manager NRW Westlich
  • Sales Contacts

Ted van Dijk

Job Titles:
  • Account Manager Pot & Bedding Plants
  • Sales Contacts

Thorsten Unterseher

Job Titles:
  • Sales Hessen / Rheinland - Pfalz

Tobias Guré

Job Titles:
  • Marketing Manager APP EMEA

Tosca Ferber - CTO

Job Titles:
  • Chief Technology Officer
  • Member of the Executive Committee
  • Dümmen Orange in 2016 As Research Director
Tosca joined Dümmen Orange in 2016 as Research Director, where she established the global Research team. In 2023, she became responsible for the global commercial portfolio as Director Global Product Management. In 2024, Tosca joined the Executive Committee as Managing Director R&D. In her current role, Tosca is responsible for all breeding programs and supporting operational and research activities.

Udo Böhmer

Job Titles:
  • Sales Sachsen / Berlin / Brandenburg / Thüringen / Mecklenburg - Vorpommern / Sachsen - Anhalt / Bayern / Baden - Württemberg

Udo Renken

Job Titles:
  • Sales Östliches Münsterland, Ostwestfalen / Niedersachsen Südlich

Ulrich Rademacher

Job Titles:
  • Account Manager Schleswig Holstein Nord Niedersachsen

Vincent Richert

Job Titles:
  • Agent

Wendy Ladino

Job Titles:
  • Account Manager Carnation / Dianthus / Limonium / Cut Mum