GLC Minerals
GLC Minerals is a fifth-generation, family-owned custom mineral processor in Green Bay, WI that formulates calcium carbonate, gypsum, dolomite, and magnesium products for Midwestern farms, animal feed operations, and industrial manufacturers, distributed via bulk truckload, tote, and bag channels.
- Company typePrivate
- Founded1871
- HeadquartersGreen Bay, United States
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
GLC Minerals firmographics
Firmographics- Name
- GLC Minerals
- Legal name
- GLC Minerals, LLC
- Website
- https://glcminerals.com
- Company type
- Private
- Founded year
- 1871
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- GLC Minerals is a fifth-generation, family-owned custom mineral processor in Green Bay, WI that formulates calcium carbonate, gypsum, dolomite, and magnesium products for Midwestern farms, animal feed operations, and industrial manufacturers, distributed via bulk truckload, tote, and bag channels.
- Ownership category
- akta.pro rank
Where GLC Minerals is headquartered
LocationHeadquarters
- HQ city
- Green Bay
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
GLC Minerals business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Supply Chain, Operations, Infrastructure, Technology or R&D, Marketing or Sales
Revenue model
- Mineral Product Sales: GLC Minerals generates revenue through the sale of formulated mineral products across three vertical markets: agronomy (soil amendments), animal nutrition (feed supplements), and industrial (mineral compounds). Products are sold in bulk truckloads, totes, and 50# bags depending on the market segment.
- Delivery and Spreading Services: GLC Minerals manages logistics from order to delivery and in select markets provides spreading services for agronomy customers, delivering products directly to fields through company-operated equipment or independent applicator partnerships.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Bulk Truckload Orders |
| Unit Pricing | Pay-as-you-go | Tote Orders |
| Unit Pricing | Pay-as-you-go | 50# Bag Retail |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels7 records
GLC Minerals product offering
Product offeringCore offering
GLC Minerals mines, processes, and custom-formulates calcium carbonate, calcium sulfate (gypsum), calcium magnesium carbonate (dolomite), and magnesium-based products from Great Lakes quarry sources. The company serves three primary markets: agronomy (soil amendments for pH correction and crop production), animal nutrition (mineral feed supplements for dairy, beef, swine, poultry, and goats), and industrial (mineral fillers, extenders, and fire retardants for plastics, sealants, glass, and cement manufacturers).
Differentiator
Problem solved
Functional benefit
Products and services
- UltraCal® High-calcium limestone soil amendment formulated for fast-acting pH correction of acidic soils in Midwestern row-crop and forage operations; sold in bulk truckloads and applied by broadcast.
- UltraCal® 75/25 Blend of UltraCal high-calcium limestone and gypsum that delivers simultaneous soil pH correction and calcium/sulfur supplementation for bulk broadcast application.
- MegaSol™ Calcium sulfate (gypsum) soil amendment used to improve soil structure, reduce compaction, and supply calcium and sulfur in bulk broadcast application.
- UltraMag™ Calcium magnesium carbonate (dolomite) soil amendment for magnesium-deficient soils, providing both pH correction and magnesium nutrition in bulk broadcast application.
- UltraCal™ Lawn & Garden Granulated high-calcium limestone for residential lawns, gardens, and wildlife food plots; sold at select retail locations for homeowner use with mechanical spreaders.
- ReliaCal® Series Calcium carbonate feed ingredient series formulated to consistent chemistry and particle size for use in feed mills serving dairy, beef, and other livestock.
- PoultryCal Series Calcium carbonate feed ingredient series formulated specifically for poultry, supporting eggshell quality and skeletal health.
- Barn Lime Calcium carbonate product used as a barn environmental amendment for livestock facilities; available in 50# bags at retail.
- ReliaSol® Series Calcium sulfate feed ingredient series supplying calcium and sulfur supplementation for livestock feed mills and on-farm mixing.
- OptiMag® Magnesium feed ingredient series providing consistent magnesium supplementation in dairy and beef cattle rations.
- Multesium™ Highly soluble magnesium and calcium buffer for dairy producers that balances pH in the digestive system and manages symptoms of acidosis in dairy cows.
- BaseMin™ Magnesium-based feed ingredient for consistent rumen buffering and mineral supplementation in livestock rations.
- BaseMin™+ Enhanced magnesium-based feed ingredient offering elevated mineral supplementation compared to BaseMin for livestock rations.
- GLC CalPro® Series Calcium carbonate extender series used in plastics, sealants, adhesives, and cement manufacturing for volume enhancement and consistent particle sizing.
- GLC CalPro® 450 Specific grade calcium carbonate extender for industrial manufacturing with controlled particle size optimized for manufacturing performance.
- GLC GypPro® Series Calcium sulfate fire retardant filler series for plastics and compounds manufacturing, supporting fire safety and material durability.
- GLC MagPro® 345 Calcium magnesium carbonate mineral supplied to glass manufacturing for durability and optical property performance.
- Delivery and Spreading Services Logistics coordination, direct-to-farm delivery, and field spreading services for agronomy customers, executed through company-operated equipment and independent applicator partnerships in select markets.
Quantifiable outcome
- UltraCal calcium carbonate delivers CCE of 97-101 and Neutralizing Index of 97-101, providing fast-acting pH correction at lower application rates compared to pelletized alternatives.
- +3 more outcomes
Companies that use GLC Minerals
Customer profileNamed customers4 records
Segments4 records
Ideal customer profiles3 records
GLC Minerals technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
GLC Minerals partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered minor and core.
- AFIA (American Feed Industry Association)minorGLC Minerals collaborates with the American Feed Industry Association as part of their sustainability and industry leadership initiatives in agricultural biosciences and feed industry advancement.
- Brown County Land & Water ConservationminorGLC partners with Brown County Land & Water Conservation to support sustainable agriculture initiatives and protect shared water resources in the region.
- Dairy Business Association of WisconsinminorCollaboration to drive innovation in dairy industry sustainability and support Wisconsin dairy operations through mineral nutrition solutions.
- Farmers for Sustainable FoodminorPartnership supporting farmer-led sustainability initiatives and environmental stewardship programs in Wisconsin agriculture.
- Fox Wolf Watershed AllianceminorCollaboration to support watershed conservation and sustainable resource management in the Fox Wolf River watershed region.
- Peninsula Pride WatershedminorPartnership supporting watershed protection and sustainable farming practices on the Door Peninsula.
- Yahara Pride WatershedminorCollaboration supporting water quality improvement and sustainable agriculture in the Yahara River watershed.
- Voice of MilkminorCollaboration supporting dairy industry communication and education initiatives.
- Independent Applicators (Agronomy)coreIn select markets, GLC Minerals has teamed up with independent applicators to help agronomy customers apply soil amendment products to their fields. GLC manages logistics coordination while applicators provide field application services.
- Port of Green BaycoreStrategically headquartered on the Port of Green Bay, GLC receives minerals by boat from Great Lakes quarries during spring and summer months, enabling cost-effective supply chain operations.
Scale indicators5 records
Recent moves7 records
Expansion highlights5 records
GLC Minerals competitors and assessment
Company assessmentBroad incumbents
- Imerys: Global mineral specialties leader producing calcium carbonate, dolomite, and ground mineral products for industrial, agricultural, and consumer markets. Directly comparable product portfolio to GLC's mineral processing platform but at much larger global scale across multiple continents.
- Carmeuse: Global leader in lime and limestone products for steel, construction, environmental, and agricultural markets. Comparable calcium-based mineral product platform serving overlapping agricultural and industrial end markets as GLC.
- Lhoist Group: Global producer of lime, dolime, and mineral products serving industrial, agricultural, and environmental markets. Comparable dolomitic and high-calcium mineral product line with overlapping agronomy and industrial customer segments.
- Compass Minerals: Public producer of specialty plant nutrition (Wolf Trax micronutrients) and industrial minerals including sulfate of potash. Overlaps with GLC's animal nutrition and agronomy product lines, particularly micronutrient and specialty fertilizer offerings.
Direct peers
- Omya: World-leading producer of calcium carbonates and ground mineral specialties serving paper, plastics, paints, agriculture, and animal feed markets. Closest direct competitor to GLC across both industrial fillers and agricultural/animal nutrition applications.
- Mississippi Lime Company: Producer of high-calcium quicklime, hydrated lime, and calcium carbonate products serving industrial, environmental, and agricultural markets. Comparable in calcium-based mineral processing, customer base overlap in industrial and agricultural applications.
- Specialty Minerals Inc. (Minerals Technologies): Subsidiary of Minerals Technologies Inc. producing precipitated calcium carbonate (PCC), ground calcium carbonate (GCC), and talc for paper, plastics, and specialty applications. Direct competitor in calcium carbonate fillers for industrial markets.
- US Lime & Minerals: Public US-based producer of lime and limestone products serving construction, steel, environmental, and agriculture markets. Closest publicly-traded pure-play comparable to GLC in scale and product mix.
- Calcium Products: Iowa-based producer of pelletized and ultra-fine calcium carbonate and gypsum products for agricultural and animal feed markets. Directly comparable ag-lime and gypsum amendment product portfolio with similar midwestern US customer base.
Regional players
- Nordkalk: Northern European producer of limestone-based products (calcium carbonate, dolomite, quicklime) for paper, construction, agriculture, and environmental markets. Comparable calcium/magnesium mineral product platform but operating primarily in Europe rather than North America.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks1 record
Key highlights7 records
Customer concentration
GLC Minerals social profiles
Digital presenceGLC Minerals financial estimates
Financial estimateRevenue estimate
Valuation estimate
GLC Minerals leadership team
Management profileNumber of profiles
Profiles2 records
GLC Minerals subsidiaries and ownership
Company hierarchySubsidiaries2 records
GLC Minerals funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
GLC Minerals M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about GLC Minerals
What does GLC Minerals do?
GLC Minerals mines, processes, and custom-formulates calcium carbonate, calcium sulfate (gypsum), calcium magnesium carbonate (dolomite), and magnesium-based products from Great Lakes quarry sources. The company serves three primary markets: agronomy (soil amendments for pH correction and crop production), animal nutrition (mineral feed supplements for dairy, beef, swine, poultry, and goats), and industrial (mineral fillers, extenders, and fire retardants for plastics, sealants, glass, and cement manufacturers).
Is GLC Minerals a public or private company?
GLC Minerals is a private company. It is classified as family owned and is currently operating.
When was GLC Minerals founded?
GLC Minerals was founded in 1871. It employs 11 to 50 people.
Where is GLC Minerals based?
GLC Minerals is headquartered in Green Bay, United States, in the North America region.
How does GLC Minerals make money?
Two revenue lines are on record. Mineral Product Sales are the primary driver. The others are delivery and Spreading Services.
Who are GLC Minerals's main competitors?
Broad incumbents on record are Imerys, Carmeuse, Lhoist Group and Compass Minerals. Direct peers are Omya, Mississippi Lime Company, Specialty Minerals Inc. (Minerals Technologies), US Lime & Minerals and Calcium Products. Nordkalk is listed as a regional player.
Does GLC Minerals have an API?
No public API is recorded for GLC Minerals.