About Us

About The Founding Of Geersing Potato Specialist

From father to son…

Geersing Potato Specialist is potato trading business originated at Emmeloord, the company develops and supplies potato seeds and varieties.

The  Beginning

After 4 years of research efforts in the Variety List field and seven years as a potato varieties grower, Jan-Eric Geersing decided to start growing by himself while performing his crop protection tasks. Growing crops business was brought to him at an early age, he followed the program that his father Marchienus Geersing had set up with a great motivation. During his study at the Agricultural University in Dronten, it was a logical step to complete the six-month internship at Hettema’s breeding company, in which his father’s educational breeding program was covered as well.

The first variety “Marcelle”

The first steps were made in 2003, within ten years, the first variety called Marcelle was achieved and added to the Variety List. Meanwhile, various activities were being developed under the name Geersing Potatoes. An organic arable plot in Poppe family’s farm in Nagele was dedicated for the cultivation program in addition to four satellite test fields were set up elsewhere in the country to test the selected material more widely.

Dutch Free Growers 

Previous contacts with Caithness Potatoes Ltd. were taken into consideration, so it was decided to approach the Dutch free growers led by Geersing Potatoes to grow varieties for Caithness. Since 2004, the group of free growers has made annual trips to England and Scotland to study the results of their seedlings on the test field in Essex and the cultivation of seed potatoes respectively in collaboration with the cultivation companies from Scotland.

Caithness Potatoes

The collaboration with Caithness Potatoes was expanded even further by bringing varieties from that tube to the attention in the Netherlands as well. The activities had increased to such an extent that they were included under a sole proprietorship and the name Geersing Potatoes was officially converted into a private limited company. It was decided in 2011 to carry on with the coordination on the cultivation works and the activities to further develop varieties under the name Caithness Potatoes Holding B.V.  20% shares of which were transferred to Geersing Potatoes and the rest to partners in the United Kingdom.

More Varieties 

In addition to the shareholding in the Dutch branch of Caithness, Geersing Potatoes B.V. continues own activities in the cultivation field to follow up on the success of Marcelle. Meanwhile, the other growers in the Netherlands and the United Kingdom have not been idle as the fries varieties Divaa and Marvel and the phytophthora-resistant Cammeo are now on the variety list.

Geersing Potato Specialist Ltd.

The activities of Caithness Potatoes Ltd. subsidiary carried on independently in 2019 by Jan-Eric in a new private limited company called Geersing Potato Specialist. Jan-Eric will further focus on developing varieties with previously acquired knowledge and relationship network.

Geersing Potato Specialist


Knowledge acquired over the years in the development of potato varieties and crop protection


The network built up over time comes in handy


Based on this relationship, long-term developments were initiated


With the focus on Phytophthora-resistant varieties for sustainable cultivation and also specialization in organic crops