Kalkwerke Otto Breckweg GmbH & CO.KG

What Kalkwerke Otto Breckweg GmbH & CO.KG does

Kalkwerke Otto Breckweg GmbH & Co. KG is a third-generation, family-owned German Mittelstand lime producer founded in 1928 and headquartered in Rheine, North Rhine-Westphalia. The company operates three multi-chamber shaft kilns at its Rheine facility with a production capacity of approximately 300 tonnes of lime per day, and runs a second quarry at Brilon/Madfeld acquired in 2014. Its core technology is the burning, slaking, and grinding of limestone into a broad portfolio of branded specialty products, including ConstruCal® lime sand brick fillers, FunduCal® soil stabilization quicklime, BreCaFill® asphalt fillers, AniCal® feed limestones, CultuCal® fertilizer lime, BreCalSan® stable-hygiene bedding lime (biocide-registered), BreCalSorb® flue-gas desulfurization hydrate, and LimuCal® water-treatment lime.

The company sells into four primary horizontal segments — construction (lime sand bricks, mortar, monument preservation), road/civil engineering (soil stabilization, asphalt), agriculture (feed, fertilizer, bedding, horticulture substrates), and environmental protection (air purification, wastewater) — supported by GMP+ B2, RHP, KOMO, and EN 459 certifications that enable access to feed, substrate, Dutch infrastructure, and EU building-lime markets. Distribution is direct via an internal sales team (Jana Kösters, Dirk Ostendorf, Aykut Ertas) and an owned logistics fleet delivering in silo trucks, big bags, dump trucks, and specialized spreaders; customers can also self-pickup from the Rheine or Madfeld-Brilon sites. Pricing is quote-based B2B industrial pricing with 14-day invoice terms. Revenue is stated at €9 million annually, generated entirely through one-time product sales with no subscription or licensing component, and the firm remains exclusively in family ownership under Managing Director Andreas Breckweg with approximately 50 employees.

Name

Kalkwerke Otto Breckweg GmbH & CO.KG

Legal name

Kalkwerke Otto Breckweg GmbH & Co. KG

Website

https://breckweg.de

Company type

Private

Founded year

1928

Operating status

Operating

Headcount range

1–10 employees

Short description

Kalkwerke Otto Breckweg is a third-generation, family-owned German Mittelstand lime producer (founded 1928, headquartered in Rheine) operating three multi-chamber shaft kilns and a Brilon/Madfeld quarry to supply branded specialty lime products across construction, agriculture, environmental, and monument preservation markets in Germany and Europe.

Ownership category

akta.pro rank

Product category

Industrial Lime and Limestone Manufacturing

NAICS

Lime Manufacturing (327410)

SIC

Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400)

akta.pro primary industry

Limestone Quarrying (Industrial & Construction Grade) (IMAKAHAC)

akta.pro secondary industries

Concentrate & Product Handling (Agglomeration, Pelletizing, Briquetting, Drying) (IMAKALAG), Aggregate Processing & Value-Added Products (Washing, Screening, Asphalt/Concrete Aggregates) (IMAKAHAH)

Keywords

• Lime products manufacturing
• Limestone processing
• Construction materials supply
• Agricultural lime products
• Industrial minerals production

Headquarters

HQ city

Rheine

HQ country

Germany

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Lime and Limestone Product Sales: The company generates revenue through the production and sale of various lime and limestone products. Annual revenue is stated at 9 million euros. The company is exclusively family-owned and has been in operation since 1928. Revenue comes from diverse product categories including construction materials (lime sand bricks, mortar), road construction (soil stabilization, asphalt fillers), agriculture (feed lime, fertilizer lime, bedding lime, substrates), environmental protection (air purification, water treatment), and monument preservation.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels3 records

Core offering

Kalkwerke Otto Breckweg manufactures and sells a broad portfolio of branded lime and limestone products across four application areas: construction materials (lime-sand bricks, mortar, monument preservation), road and civil engineering (soil stabilization, asphalt fillers), agriculture (feed lime, fertilizer lime, stable hygiene bedding lime, horticultural substrates), and environmental protection (flue gas desulfurization, water and wastewater treatment). Production is centered on three multi-chamber shaft kilns with a daily capacity of approximately 300 tonnes, supported by a quarry in Brilon/Madfeld, a grinding-drying plant, a lime slaking plant, and modern filter systems.

Product overview

Kalkwerke Breckweg is a family-owned limestone products company offering a diversified portfolio of lime-based solutions across construction, agriculture, and environmental protection sectors. The product line is organized into branded product families: ConstruCal® products (F80, F80 PLUS, F90, H80) for construction applications including lime-sand bricks and mortar; FunduCal® products (F80, BK) for soil stabilization in road construction; BreCaFill® for asphalt fillers; AniCal® products for animal feed supplements; CultuCal® products for agricultural fertilizers; BreCalSan® for stable hygiene; BreCalSorb® products for air purification; LimuCal® products for water treatment; and substrate limestone flours for horticulture. The company operates quarries in Rheine and Madfeld-Brilon, producing approximately 300 tonnes of lime per day.

Differentiator

Problem solved

Functional benefit

Brands

• AniCal®: Feed lime products for animal nutrition, GMP+ B2 certified
• CultuCal®
• BreCalSan®
• ConstruCal®
• FunduCal®
• BreCaFill®
• BreCalSorb®
• LimuCal®

Products and services

• ConstruCal® Lime Products for Lime-Sand Brick Manufacturing ConstruCal® brand lime products including ConstruCal® F80 (white fine lime), ConstruCal® F80 PLUS (enhanced fine lime), ConstruCal® F90 (fine lime with 90% < 0.09mm foreign filler), ConstruCal® H80 (calcium hydroxide for mortar, tested to DIN EN 12620), and BreCaFill® B009 filler. Products are designed for building materials manufacturers producing lime-sand bricks and mortar with high compressive strength, bulk density, and sound insulation requirements.
• FunduCal® Quicklime for Soil Stabilization FunduCal® brand quicklime products including FunduCal® F80 and FunduCal® BK (dust-reduced quicklime for sensitive areas). Designed for road construction and civil engineering soil stabilization, providing optimal compaction and frost protection for road base layers. Available for delivery via silo trucks, screw spreaders (Schneckenstreuer), and big bags.
• BreCaFill® Asphalt Fillers BSH 40 mixed filler (Mischfüller) for asphalt construction. Quality-monitored according to DIN EN 13043 with KOMO product certificate IKB 1033/16 for factory-premixed calcium hydroxide filler for traffic surface construction according to Dutch KOMO guidelines. Designed for road construction companies producing asphalt with good mixability and optimal grain distribution.
• AniCal® Feed Limestone for Livestock AniCal® brand calcium carbonate feed supplements including AniCal® B009 (90% ≤ 0.09mm particle size), AniCal® T (60% ≤ 0.06mm particle size), AniCal® 0.01-1.0mm (fine granulation), and AniCal® 1-3mm (coarse granulation). All variants are GMP+ FSA secured, ensuring consistent quality management for feed materials. Available in silo trucks, tippers, big bags, and 25kg bags for livestock operations and feed mills.
• CultuCal® Fertilizer Lime Products CultuCal® brand fertilizer lime products for soil pH regulation and fertility. Includes CultuCal® MgT (ca. 80% CaCO3 + 5% MgCO3, base effective constituents 48% CaO), CultuCal® T (ca. 85% CaCO3, magnesium-bearing, reactivity ≥80%), CultuCal® B009 (extra-fine with 100% reactivity), and CultuCal® erdfeucht (moist with magnesium, reactivity ≥60%). Delivered via screw spreaders and disc spreaders (Tellerstreuer).
• Limestone Flour Substrate Products Limestone flour (Kalksteinmehl) products for commercial horticulture substrate production. Includes Kalksteinmehl mit Magnesium (limestone flour with magnesium in various grinding finenesses), Kalksteinmehl B006 (extra-fine for substrate pH adjustment), and Kalksteinmehl B009 (fine, RHP certified). RHP quality mark certification ensures international market quality assurance for substrate producers.
• BreCalSan® Bedding Lime for Stable Hygiene BreCalSan® bedding lime (Einstreukalk) for hygiene in cattle stalls. A finely ground natural product consisting of a mixture of various high-quality lime-based products without chemical additives. Achieves ongoing pH value above 12 to reduce growth and reproduction of pathogenic germs. Certified as a biocide under Regulation (EC) No. 1451/2007 N-36234. Designed for dairy and cattle operations requiring pathogen reduction in stable environments.
• BreCalSorb® Lime Hydrate for Air Purification BreCalSorb® brand lime hydrate products for industrial flue gas desulfurization and air purification. Includes BreCalSorb® H80 (standard lime hydrate), BreCalSorb® H80 PLUS (with 10% high-reactive lime), BreCalSorb® H90 (with 4% high-reactive lime), BreCalSorb® H80 Calcit 1-3mm and 3-7mm (limestone granulations for packed bed filters), BreCalSorb® A (10% HOK), and BreCalSorb® A4 (4% HOK). Calcium hydroxide bonds undesirable sulfur gases forming calcium sulfate (gypsum) for industrial emission control. Available in silo trucks and tippers.
• LimuCal® Lime Products for Water Treatment LimuCal® brand lime products for wastewater treatment in sewage treatment plants. Includes LimuCal® H80 (standard lime hydrate for pH regulation), LimuCal® H80 PLUS (enhanced lime hydrate), LimuCal® H90 (high-purity lime hydrate), LimuCal® BK staubreduziert (dust-reduced for sensitive environments), LimuCal® F80 (fine lime), and LimuCal® F90 (specialized fine lime). Products support pH regulation, sewage sludge treatment, and precipitation/flocculation processes to bind pollutants from wastewater in municipal and industrial treatment plants.
• NHL 3.5 Natural Hydraulic Lime for Monument Preservation NHL 3.5 (Naturhydraulischer Kalk / Natural Hydraulic Lime) for monument preservation (Denkmalpflege) and heritage building restoration. Monitored according to EN 459 building lime standards. Designed for restoration craftsmen, heritage preservation specialists, and construction companies working on historic buildings requiring authentic lime-based materials.

Quantifiable outcome

• Production capacity of approximately 300 tonnes of lime per day
• +3 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Scale indicators7 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Heidelberg Materials AG: German DAX-listed building-materials major with cement, aggregates, and downstream ready-mix operations; comparable to Breckweg's construction aggregates, fillers, and lime-input activities but as part of a much broader portfolio.
• Lhoist Group: Belgian family-owned global lime and dolomite major with German subsidiary Rheinkalk; competes with Breckweg in lime, FGD, and water-treatment grades but operates at vastly larger industrial scale across Europe and globally.
• Carmeuse Group: Belgium-based global lime and limestone producer with extensive European operations; overlaps with Breckweg across construction, environmental, steel, and chemical lime markets but at a much larger industrial footprint.
• Dyckerhoff GmbH (Buzzi SpA): German cement manufacturer (subsidiary of Italy's Buzzi) producing cement and related binders; adjacent competitor in construction binders/aggregates with overlapping German customer base in masonry and infrastructure markets.

Direct peers

• Fels-Werke GmbH: Germany-based lime and limestone producer operating multi-chamber shaft kilns and quarrying operations across Germany; directly comparable to Breckweg in quicklime/hydrated lime production, application-grade branded lime portfolios, and DACH/European customer base.
• Schaefer Kalk GmbH & Co. KG: German family-owned Mittelstand lime producer headquartered in Hahnstätten, with quarrying and shaft-kiln operations serving construction, agriculture, and environmental markets; comparable in scale, vertical integration, and family-ownership profile.
• Kalkwerk Hufgard GmbH: German regional lime producer with quarry and kiln operations serving construction, agriculture, and environmental applications; comparable Mittelstand mid-sized competitor with similar product/market overlap to Breckweg.

Others

• Omya AG: Swiss global producer of industrial minerals including calcium carbonates (Omya-Cal, Omyalite); comparable upstream-differentiation strategy via specialized calcium-carbonate grades for paper, plastics, agriculture, and environmental markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/kalkwerke-otto-breckweg-gmbh-&-co-kg

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Kalkwerke Otto Breckweg GmbH & CO.KG