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Company Profile

Cirkel at a glance

Facts

Cirkel: At a Glance

This page describes the company profile of Cirkel GmbH & Co. KG. Product details, career information, and sustainability topics are presented on separate pages.

Cirkel GmbH & Co. KG is a German family business for mineral building materials and multifunctional minerals. The company was 1898 founded and today employs around 200 employees at five locations in Germany. Among other things, Cirkel develops, produces, and distributes Sand-lime brick, Aerated concrete and Calcium Silicate Hydrates for applications in construction and industry.
Company name: Cirkel GmbH & Co. KG
Founded: 1898
Legal Form: Family-owned company
Employees: approx. 200
Locations: Haltern am See, Emsdetten, Bad Salzdetfurth, Neuenkirchen-Vörden, Wickede
Business Segments: Building Materials and Multifunctional Minerals
Products and Brands: KS-ORIGINAL, KS XL, KS-PLUS, PORIT Porenbeton, CIRCOSICHT, CIRCOSIL, CIRCOLIT
Holdings: Dörentrup Quarz GmbH & Co. KG, HOSKO GmbH, SAERTEX GmbH & Co. KG
Last updated: May 2026
Business Segments

Cirkel: Business Segments

Cirkel divides its offerings into two business segments: Building Materials and Multifunctional Minerals. In the area of Building Materials the product range includes, among others, Sand-lime brick, Autoclaved aerated concrete and Facing bricks. For multifunctional minerals Cirkel produces Calcium silicate hydrates for applications in Construction chemicals, Paper, Paints and coatings as well as other industrial applications.
Locations

Cirkel: Locations

Cirkel operates at five locations in Germany: Haltern am See, Emsdetten, Bad Salzdetfurth, Neuenkirchen-Vörden, and Wickede. These locations include the production of building materials and calcium silicate hydrates for various applications.
Holdings and Affiliations

Cirkel: Holdings and Affiliations

Cirkel comprises the Building Materials and Multifunctional Minerals business units, as well as the product lines KS-ORIGINAL, KS XL, KS-PLUS, PORIT, CIRCOSICHT, CIRCOSIL, and CIRCOLIT. Furthermore, there are holdings in companies from the raw materials, binders, and technical materials sectors.
FAQ

Cirkel: Questions & Answers

Here you will find answers to frequently asked questions about Cirkel, its business areas, locations, products, and investments.
What does Cirkel produce?
Cirkel produces mineral building materials and multifunctional minerals. These include Sand-lime brick, Autoclaved aerated concrete, Sand-lime facing bricks and Calcium Silicate Hydrates for applications in construction and industry.
Where does Cirkel produce?
Cirkel produces at five locations in Germany: Haltern am See, Emsdetten, Bad Salzdetfurth, Neuenkirchen-Vörden and Wickede.
What business segments does Cirkel have?
Cirkel operates in two business segments: building materials and multifunctional minerals.
What brands belong to Cirkel?
Cirkel's product and brand areas include KS-ORIGINAL, KS XL, KS-PLUS, PORIT Aerated Concrete, CIRCOSICHT, CIRCOSIL and CIRCOLIT.
What does CSH stand for?
CSH stands for Calcium Silicate Hydrate. Cirkel produces CSH products for various industrial applications, including with the product lines CIRCOSIL and CIRCOLIT.
What are the holdings?
Cirkel's holdings include Dörentrup Quarz GmbH & Co. KG, the HOSKO GmbH and the SAERTEX GmbH & Co. KG.