Our Company

Responsibility with
History. Innovation
with a future.

Our Company

About Cirkel

For over 125 years Cirkel stands for reliability, quality, and progress. We use this strong foundation for sustainable and successful ongoing development - day after day.

At our five sites we focus on the production and distribution of CSH products (Calcium Silicate Hydrate), which are used in numerous industrial sectors. The close exchange between our locations is common practice and creates valuable synergies - both professionally and personally.

Through targeted Diversification of our sales markets and a broad range of our product applications, we protect ourselves against economic fluctuations and strengthen our innovative capacity. This approach is supported by continuous investments in modern technology, digital processes, and our employees.
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Neuenkirchen-Vörden
Emsdetten
Haltern am See
Wickede
Bad Salzdetfurth

Locations

Cirkel | Haltern am See

Cirkel | Emsdetten

Cirkel | Bad Salzdetfurth

Cirkel | Neuenkirchen-Vörden

Cirkel | Wickede

Our Mission Statement

The foundation of our actions

Since 2016, our mission statement has shaped our daily interactions – within the team, with our customers, and with our partners. Our guiding principles are not just formulated; they are actively lived. Openness, reliability, and mutual respect are central values in this regard.

And we are happy to be measured by that.

We are Customer-focused

And rely on collaborative partnerships

We are Medium-sized

And as a family business, we operate flexibly and with a long-term perspective

We are Accountable

And act for a common goal

We are
Value-adding

And refine regional raw materials into sophisticated products

We are
‍Innovative

And leverage our many years of expertise with lime, sand, and water for a wide range of applications

Our Company

Image Film

After exciting filming at all 5 Cirkel locations, our image film is complete and online! It reflects our Cirkel DNA as a medium-sized family business.

Take a look!

Our Journey

Our Journey

Milestones with character

Every chapter of our history stands for progress, curiosity, and the belief that sustainable growth can only be achieved together. Here are the milestones that have shaped us – and will carry us into the future.
1898

The beginning of an idea

History is made in Rheine. With the founding of Rheiner Sandsteinwerke, a journey begins that, 125 years later, is far from over.

# Founding / Tradition
1939

Second plant

Despite challenging times: Growth in Flaesheim. We expand our reach into the Ruhr region. The new plant quickly becomes the pulsating heart of our production.

# Expansion / Pioneer Spirit
1966

The stone that changed construction

A large-format lightweight sand-lime brick that revolutionizes thermal insulation and processing.

# Innovation / Building Culture
1990

The East builds with us

Cottbus: Becoming part of the reconstruction.
Soon after reunification, we contributed expertise and commitment to the reconstruction of East Germany through our involvement in the sand-lime brick plant in Cottbus.

# Expansion / Responsibility
1995

Research becomes part of our DNA

From building material to high-tech substrate.
In the 90s, we significantly expanded our production capacities – among other things, by building a new plant for the Catsan pre-product in Bad Salzdetfurth. Meanwhile, employees in Emsdetten specialized in the development and production of the precisely formulated CSH products CIRCOSIL® and CIRCOLIT®.

# Innovation / Sustainability
2008

Room for new ideas

Making room for ideas. Our product range is growing – and so is our site. The Flaesheim plant is being expanded by 30,000 m². We are also seeing strong demand in the CIRCOSIL® and CIRCOLIT® sectors. The Bad Salzdetfurth plant was also expanded to reliably meet the steadily growing demand for Catsan.

# Innovation / Production
2012

Two brands, one goal

PORIT with new strengths. „KS*DAS ORIGINAL“ with a new focus. We are setting new standards – with highly insulating aerated concrete and the acquisition of the Wickede plant for KS products.

Our goal: modern, sustainable solutions in masonry construction – for today and tomorrow. Simultaneously, our product portfolio continues its strategic growth.

# Innovation / Expansion
2020

A Plant with Vision

Neuenkirchen-Vörden: our most modern sand-lime brick plant. With a double-digit million investment, we launched a plant in 2020 that sets new standards in energy efficiency and resource conservation.

# Innovation / Expansion

The project was supported by the Federal Ministry for the Environment as a pioneering initiative. It proves that for us, economy and ecology go hand in hand.
2021

Sustainability Becomes Part of Everyday Life

Responsibility is not a trend. It's a conviction.
We invest in CO₂ reduction, green energy, and recycling processes – not because we have to, but because we want to.

# Sustainability / Innovation
2023

A Celebration for 125 Years

125 Years of Cirkel – a weekend that unites us.
We're celebrating our company anniversary not just with pride, but with our entire team. In Bremen, we're experiencing an unforgettable weekend filled with team spirit, reflection, and looking ahead.

# Team Culture / Anniversary
Today

Cirkel Today

The journey offered opportunities for connection, sharing stories, and celebrating our collective achievements. Special thanks to all employees and partners who make this path possible – yesterday, today, and tomorrow.
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Quality at Cirkel

Our Promise. From the very beginning.

For us, quality means more than just a product standard – it begins with the first grain of sand.

For our products, we exclusively use natural raw materials. We are particularly proud of our own quartz sand deposits – among the purest in all of Europe.

But at Cirkel, quality doesn't stop at the material. It extends throughout the entire value chain – from raw material and production to delivery and customer application.

Our Employees
Expertise meets Passion

Good products are created by good people.
The qualifications and commitment of our employees are a key success factor. Training and further education, workshops, and personal dedication – both within the company and directly with the customer – are standard practice for us.

Quality Assurance
Controlled. Transparent. Reliable.

Internal inspections and external audits are a matter of course for us.
Our fully automated production facilities are continuously monitored – both internally and externally. Additionally, we voluntarily have our products regularly inspected. For this commitment, we were awarded the quality seal of the Qualitätsgemeinschaft Mauerwerksprodukte e.V.

Furthermore, we meet the requirements of DIN EN ISO 9001, supported by regular quality management meetings in which we react quickly and efficiently to potential for improvement.

Environmental Responsibility

We are aware of our environmental responsibility. From raw material sourcing to the final product, we rely on sustainable practices. Our energy management system according to DIN 50001 ensures that we work energy-efficiently and continuously minimize our ecological footprint.

Logistics & Order Center
Reliable delivery when it matters

Punctual. Flexible. Customer-oriented.
Our order center ensures that your delivery arrives when you need it. Our qualified staff are available by phone from Monday to Friday between 7:30 AM and 4:30 PM (until 2:00 PM on Fridays) – supported by modern ERP and CRM systems.

Loading times? Flexible from 6:00 AM to 9:30 PM in the building materials sector and from 6:00 AM to 1:00 PM (6:00 AM - 11:00 AM on Fridays) in Emsdetten – just as our customers need them. And if our drivers bring improvement suggestions, we implement them as quickly as possible.

Consulting & Application
Quality doesn't end with the purchase

We support you – from planning to the finished application.
Whether it's CAD-supported planning, technical consulting, or on-site application support: our experts are always available with their expertise – even long after your purchase. Because true quality only reveals itself in use.

Our team of product managers provides expert advice across all application areas of multifunctional minerals. With modern laboratories and application-specific technical infrastructure, we offer practical tests, product optimization, and targeted technical support – all tailored to your specific requirements.

Holdings

Dörentrup Quarz GmbH & Co. KG

HOSKO GmbH

SAERTEX GmbH & Co. KG