2026-11-13 05:00Press release

Sigrid De Geyter appointed CEO of Ragn-Sells Treatment & Detox 

Sigrid De Geyter

Sigrid De Geyter has been appointed CEO of Ragn-Sells Treatment & Detox Sweden. Sigrid brings extensive experience from a long career in water, waste and energy, and succeeds Madeleine Ljunggren, who took over as CEO of Ragn-Sells Group earlier this year. 
 
“If we are serious about building a sustainable society, we need to use the raw materials we already have, over and over again. To achieve this, it is crucial to prevent harmful substances from contaminating circular flows. Ragn-Sells Treatment & Detox plays an important role in this, and I am delighted to have been entrusted with leading this work,” says Sigrid De Geyter. 
 
Ragn-Sells Treatment & Detox is a wholly owned company within the Ragn-Sells Group. The company specialises in the safe treatment and detoxification of challenging waste, ensuring that harmful substances are not passed on through circular flows, where they could pose a risk to people and the environment. 
 
“Ragn-Sells Treatment & Detox plays a central role in the work to detoxify society. In Sigrid De Geyter, the company gains a committed and experienced leader with a strong drive to develop the business at a time when its work is needed more than ever,” says Madeleine Ljunggren, Ragn-Sells Group CEO.
 
Sigrid De Geyter joins Ragn-Sells from a senior management position at Stockholm Vatten och Avfall, Sweden’s largest water and waste company. She has extensive experience from leadership roles in both private and public-sector organisations within water, waste, and energy. 
 
“I am driven by developing long-term solutions for the environment, for the organization, and for the business. Ragn-Sells is a company with both sound values and a high level of expertise, and I look forward to continuing to develop Treatment & Detox together with the entire team,” says Sigrid De Geyter. 
 
Ragn-Sells Treatment & Detox operates several major treatment facilities and landfills across Sweden, including Högbytorp in Upplands-Bro near Stockholm, Häradsudden in Norrköping and Heljestorp in Vänersborg. 
 
Sigrid De Geyter will begin her new role on 18 January 2027. 
 
Media contacts: 
Debby Porter Laffitte, Press Officer, Ragn-Sells Group, +46 (0)10 723 24 16, press@ragnsells.com

Topics: People & Career

About Ragn-Sells Group

The environmental company Ragn-Sells converts waste into raw materials that can be used over and over again. Ragn-Sells drives the transition to a circular economy through solutions that reduce its own and other actors' environmental and climate impact. Ragn-Sells is a family owned corporate group founded in 1881. The company operates in five countries and employs over 2,700 people. In 2025, Ragn-Sells’ turnover was 9,120 MSEK. www.ragnsells.com

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