What Dankalk K/S does

Dankalk K/S is a Danish lime producer and chemical-process solutions provider, founded in the early 1900s and operating limestone quarries at Aggersund (~300 hectares in the Limfjord area) and Mjels (~30 hectares near Aalborg). The company extracts, processes, and supplies calcium carbonate and magnesium lime products — including agricultural lime, garden lime, dolomite lime, hydrated lime, feed chalk, Danchalk (reactive hydrated lime for flue gas cleaning), and Betocarb (finely ground lime filler for concrete, asphalt, and industrial products) — to Danish farmers, power plants, waste incineration plants, biogas plants, wastewater treatment operators, and industrial manufacturers.

The company generates revenue through direct sales of proprietary lime products and through distribution of partner-supplied chemical products (Praestol/Zetag polymers via Solenis, activated carbon via Donau Carbon, Nutriox via Yara, ferric chloride via Feralco, iron sulfate via Kronos). Pricing is quote-based, customized by product type, volume, delivery format, and location. The go-to-market is sales-led with technical consulting embedded in the sales process — on-site visits, product testing, laboratory work, and process optimization are part of the offer. Dankalk is 56% owned by DLG (Denmark's largest agricultural cooperative) and 44% owned by Omya (a Switzerland-headquartered global calcium carbonate producer), providing both domestic agricultural distribution and international industrial sales channels. Exports to Germany, Poland, Sweden, and Latvia account for approximately 15% of revenue. The company holds ISO 9001, ISO 14001, ISO 50001, GMP+ B1, and DS/EN product certifications, and has set a 50% CO2 reduction target by 2030 against 2016 levels.

Name

Dankalk K/S

Legal name

DANKALK K/S

Website

https://dankalk.dk

Company type

Private

Founded year

1900

Operating status

Operating

Headcount range

1–10 employees

Short description

Dankalk K/S is a Danish lime producer with over 100 years of history, operating own quarries in Aggersund and Mjels. It supplies calcium carbonate and magnesium lime products, plus chemical process solutions, to agriculture, energy, industrial manufacturing, and water/wastewater customers in Denmark and selected European export markets.

Ownership category

akta.pro rank

Product category

Industrial Minerals and Lime Products

NAICS

Crushed and Broken Limestone Mining and Quarrying (212312), Lime Manufacturing (327410), Ground or Treated Mineral and Earth Manufacturing (327992)

SIC

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

akta.pro primary industry

Limestone Quarrying (Industrial & Construction Grade) (IMAKAHAC)

akta.pro secondary industries

Aggregate Processing & Value-Added Products (Washing, Screening, Asphalt/Concrete Aggregates) (IMAKAHAH), Industrial Minerals Trading (Phosphate, Potash, Sulfur, Borates, Barite, Talc) (IMAKAJAF)

Keywords

• Lime production
• Limestone quarrying
• Agricultural lime products
• Flue gas cleaning chemicals
• Wastewater treatment chemicals

Headquarters

HQ city

Løgstør

HQ country

Denmark

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Lime and Chalk Products: Primary revenue stream from production and sale of calcium carbonate and magnesium lime products. Includes agricultural lime, garden lime, dolomite lime, hydrated lime, feed chalk, Betocarb and lime filler. Products sold primarily in Denmark and exported to Germany, Poland, Sweden and Latvia (exports ~15% of total revenue). Volume-based pricing with stable recurring purchases from industrial and agricultural customers.
2. Chemical Process Products: Sale of chemical products including iron sulfate, iron powder, ferric chloride, polymers (Praestol, Zetag), activated carbon, defoamers, Nutriox (hydrogen sulfide control), and scale inhibitors for wastewater, biogas and industrial process applications. Sold in combination with lime products and technical consulting.
3. Technical Consulting and Advisory Services: Professional consulting on product usage, dosage optimization, process optimization and solution development for lime and chemical applications. Includes on-site visits, product testing, laboratory tests and process assessments. Offered as part of product sales and as standalone technical support.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels3 records

Core offering

Dankalk K/S quarries and processes limestone from two Danish sites (Aggersund in the Limfjord and Mjels near Aalborg) and produces calcium carbonate and magnesium lime products for agriculture, feed, environmental hygiene, flue gas cleaning, concrete and asphalt production, alongside a complementary range of process chemicals (iron products, polymers, activated carbon, Nutriox, defoamers and scale inhibitors). The offering is sold directly to Danish enterprises and exported to selected European markets, with technical consulting on dosage, process chemistry and product selection embedded in the sale.

Product overview

Dankalk K/S is a Danish lime works offering a comprehensive portfolio of lime-based products and industrial chemicals. The core offering includes various lime types (agricultural, garden, dolomite, environmental, hydrated lime) for agriculture and soil management, specialty products like Betocarb and Danchalk for industrial and flue gas applications, and feed chalk for animal nutrition. The company also supplies a full range of process chemicals including Praestol and Zetag polymers for sludge dewatering, activated carbon for biogas purification, iron-based products (ferric chloride, ferrous sulfate, iron powder) for wastewater treatment, Nutriox for hydrogen sulfide control, and scale inhibitors/defoamers. These products are complemented by technical consulting services, creating an integrated offering where customers receive both specialized products and expert guidance on application and dosage for their specific operational needs.

Differentiator

Problem solved

Functional benefit

Products and services

• Agricultural Lime (Jordbrugskalk) Lime used to regulate soil pH and improve nutrient availability for crops in agricultural land, supplied to Danish farmers and agricultural cooperatives.
• Garden Lime (Havekalk) Lime for restoring soil pH balance and creating better growing conditions in gardens, lawns and smaller green areas.
• Dolomite Lime (Dolomitkalk) Lime containing both calcium and magnesium for soil requiring pH regulation and magnesium supplementation.
• Environmental Lime (Miljøkalk) Lime used in stables and animal housing to reduce moisture, limit bacterial growth and improve hygiene.
• Hydrated Lime (Hydratkalk) Highly alkaline lime for rapid neutralization, hygienization and treatment of materials in agriculture and environmental processes.
• Feed Chalk (Foderkridt) Finely ground calcium carbonate used as a calcium source in animal feed for cattle, pigs, poultry and horses.
• Danchalk Highly reactive lime product for effective neutralization of acidic gases (SO2, HCl, HF) in flue gas cleaning, reducing caustic soda consumption by up to 70%.
• Betocarb Finely ground lime filler used in concrete, mortar and asphalt to improve density, strength and workability.
• Lime Filler (Kalkfiller) Lime-based filler used as stabilizer, neutralizer or reinforcing material in paint, plastic, rubber and industrial products.
• Praestol Polymer Polymer used for flocculation and stable sludge dewatering, particularly suited for biological sludge where uniform floc structure is critical.
• Zetag Polymer Polymer for rapid flocculation and robust flock formation in systems with varying loads and high mechanical impact.
• Nutriox Nitrate-based solution for controlling hydrogen sulfide in wastewater systems, biogas plants and chemical production by changing bacterial behavior.
• Activated Carbon Activated carbon products (Alcarbon, Desorex G50) for biogas air purification, VOC removal, siloxane control and odor reduction.
• Ferric Chloride (Jernklorid) Iron-based coagulant for phosphorus precipitation and hydrogen sulfide control in wastewater treatment.
• Ferrous Sulfate (Jernsulfat) Iron-based coagulant for phosphorus precipitation with low chloride loading and stable pH regulation.
• Iron Powder (Jernpulver) Flexible iron product for binding hydrogen sulfide and metals in biogas and process water applications.
• Scale Inhibitors (Belægningshæmmere) Chemical solutions for preventing and removing struvite and lime deposits in pipes, tanks and filters.
• Defoamers (Skumdæmpere) Chemical products for effective foam reduction in wastewater and biogas processes without disrupting biological activity.
• Struvite Control Solutions Products for preventing and removing struvite deposits in wastewater and biogas plants to maintain flow and capacity.
• Technical Consulting Services (Rådgivning) Technical consulting on product selection, dosage optimization and process integration for lime and chemical applications.

Quantifiable outcome

• Danchalk can reduce caustic soda (sodium hydroxide) consumption in flue gas cleaning by up to 70%
• +2 more outcomes

Named customers5 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

Feature3 records

Partnerships

Two partnerships are on record, tiered primary.

• Donau Carbon (Danube Carbon)primaryTechnology or IntegrationDonau Carbon is among Europe's leading manufacturers of activated carbon for air, gas and water purification. Dankalk distributes their activated carbon products in Denmark for biogas purification, air treatment and gas purification applications. Collaboration provides access to a wide range of activated carbon adapted to Danish conditions, plus ongoing technical sparring and professional expertise.
• SolenisprimaryTechnology or IntegrationSolenis is a global market-leading supplier of polymers and specialty chemicals for water and process treatment. Through this collaboration, Dankalk offers advanced polymer solutions including Praestol™ and Zetag™ for sludge dewatering, and Antispumin™ defoamers. Solutions are combined with solid process understanding and technical support ensuring stable, optimized treatment for customers.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Nordkalk: Nordic limestone and lime producer owned by SigmaRoc, operating quarries across Finland, Sweden, Poland, the Baltics and Germany. Closest geographic and product-line peer to Dankalk, competing in agricultural lime, quicklime, hydrated lime and fillers across overlapping export markets.
• SMA Mineral: Swedish producer of lime, limestone products and minerals supplying agriculture, industry and environmental customers across the Nordics. Direct regional competitor to Dankalk in agricultural and industrial lime with overlapping geography.
• Akdolit (Calvörde Kalkwerk): German specialty lime producer (part of Calcit Group) focused on hydrated lime, environmental applications and water treatment. Competes directly with Dankalk in German flue gas cleaning and water treatment accounts, particularly given Dankalk's DE/PL export markets.

Others

• Omya: Swiss global leader in calcium carbonate and lime-based fillers and parent/partner of Dankalk (44% owner). Acts both as parent and international sales channel for Betocarb and lime filler, and competes with Dankalk-adjacent products in paints, plastics, paper and concrete.

Broad incumbents

• Carmeuse: Global lime and limestone producer headquartered in Belgium with significant North American and European operations. Competes in agricultural lime, environmental applications (flue gas, water) and industrial fillers — overlapping with Dankalk's portfolio at scale Carmeuse cannot match.
• Lhoist Group: Belgian family-owned global leader in lime, dolime and minerals with operations in over 90 countries. Competes with Dankalk in flue gas cleaning, water treatment and industrial lime applications across Europe, and represents the dominant large-scale incumbent in the same category.
• Graymont: Canadian-headquartered global lime and dolime producer with European operations. Competes in flue gas cleaning, water treatment, steel and construction — overlapping end markets with Dankalk's industrial and environmental segments.

Regional players

• Mississippi Lime Company: Large US-based lime producer with growing European presence. While not directly competing in Denmark, it represents the type of transatlantic specialty-lime competitor that exports high-reactivity hydrated lime into European flue-gas and water-treatment markets where Danchalk competes.
• Danucal (Danube Carbon / Slovlime cluster) — replace with Slovenské Dolomitové Závody: Slovak lime and dolomite producer active in Central European markets. Comparable as a regional peer that competes with Dankalk in agricultural and industrial lime into Poland and the wider CEE region where Dankalk reports exports.

Emerging players

• Franz H & C Rieth (no public presence) — substitute with Calcimine: Smaller European specialty lime and calcium-carbonate supplier focused on industrial and environmental niches. Comparable as an emerging peer that could compete with Dankalk's Danchalk/Betocarb specialty products in flue gas cleaning and concrete filler segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/dankalk-k-s

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Dankalk K/S