Business Details
Trusted Mineral Solutions for Agriculture, Industry & Livestock
Great Lakes Calcium has been a trusted leader in mineral manufacturing for over 150 years, serving agriculture, animal nutrition, and industrial markets. Founded in 1871 and headquartered in Green Bay, Wisconsin, our family-owned business combines generational expertise with scientific innovation to deliver high-performing mineral solutions. Our products, including calcium carbonate, gypsum, and magnesium supplements, are formulated to enhance soil health, livestock nutrition, and industrial manufacturing processes.We maintain rigorous quality standards through lab testing for grade, chemistry, and particle size distribution, ensuring consistent performance for every application. Our responsive ordering and agile delivery systems guarantee timely logistics tailored to client needs, while our commitment to community and sustainability drives local initiatives and environmental stewardship. With ISO 9001:2015 certification, we uphold excellence in safety, quality, and customer satisfaction across all operations.
Services
Calcium Carbonate
Calcium Sulfate
Magnesium Supplements
Soil Amendments
Industrial Minerals
Animal Nutrition Products
Highlights and features
- We offer 150 years of expertise in mineral formulation and manufacturing.
- Our products undergo rigorous lab testing for consistency and quality.
- We provide responsive ordering and customized delivery logistics.
- Our team partners with clients to develop science-based solutions.
- We maintain ISO 9001:2015 certification for quality management systems.
Associations and certifications
- ISO 9001:2015
Services
Calcium Carbonate
Our calcium carbonate products enhance soil pH balance and serve as feed supplements. Formulated for agronomy and industrial applications, they improve crop yield and manufacturing processes. Rigorous testing ensures particle size consistency and chemical purity for reliable performance.
Calcium Sulfate
Calcium sulfate solutions improve soil structure and act as industrial fillers. Naturally mined and processed for agricultural and manufacturing use, they address sulfur deficiencies and enhance product durability in glass and plastic production.
Magnesium Supplements
Magnesium-based supplements optimize livestock health and soil nutrition. Products like Multesium and OptiMag provide soluble mineral balances for dairy cows and crop production, supporting digestive health and nutrient absorption.
Soil Amendments
Custom soil amendments adjust pH levels and nutrient content. Our UltraCal and UltraMag lines deliver fast-acting solutions for Midwest farmers, improving crop quality and yield through precise mineral formulations.
Industrial Minerals
Industrial-grade minerals enhance production processes across sectors. From glass manufacturing to plastics, our CalPro and GypPro series provide fire-retardant properties, durability, and cost-effective material extension for industrial clients.
Questions
What industries does Great Lakes Calcium serve?
We serve agriculture, animal nutrition, and industrial manufacturing sectors with mineral products tailored to each market's specific needs.
Are Great Lakes Calcium products ISO certified?
Yes, our quality management systems are ISO 9001:2015 certified for consistent product reliability and safety.
How does Great Lakes Calcium ensure product quality?
We conduct rigorous lab testing for grade, chemistry, and particle size distribution to guarantee consistent quality in every batch.
Can I schedule a consultation for product selection?
Yes, our mineral experts offer virtual appointments to help you choose the right solutions for your specific application.
What delivery options are available?
We manage logistics from order to delivery, offering customized schedules and partnerships with independent applicators for field application.
Where is Great Lakes Calcium located?
Our headquarters and primary facility are located at 1450 Bylsby Ave, Green Bay, WI 54303.