Founded in 1995 by Lonnie Cook, who brings over 40 years of cement industry experience, Gray Powder Technologies Inc. (GPT) has grown into a trusted partner for the cement and industrial sectors worldwide. GPT supplies raw materials to more than 15 cement companies and provides by-product placement services to nearly 50 industrial companies, helping clients optimize operations, reduce costs, and achieve sustainability goals.

GPT also offers expert consulting services to cement plants and industrial companies across North America, leveraging decades of industry knowledge. Our corporate office is based in Davenport, Iowa, with sales staff strategically located near our customers to provide personalized service and attention to detail. We proudly serve clients across the United States, Canada, Europe, Mexico, South America, and Asia.

In addition, GPT is a global leader in cement testing technology. We supply ASTM C1565-23 compliant Pack Set Cement Testers to over 195 countries, ensuring precise measurement of cement pack set index for cement producers, testing labs, and universities. Our advanced equipment supports quality control, compliance, and consistent results worldwide, with full international shipping and customs support.

Gray Powder Technologies Inc

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