GCP logo 2022

Headquartered in Alpharetta, Georgia, GCP is a leading global provider of construction products that include high-performance specialty construction chemicals and building materials. GCP partners with producers, contractors, designers, and engineers to achieve performance and sustainability goals. The company has a legacy of first to market and award-winning solutions that have been used to build some of the world’s most renowned structures. GCP is focused on continuous improvement for its customers, end-users, and the environment.




Construction + Engineering


Iltaz Alam

Iltaz Alam is a product manager at GCP and holds a Chemical Engineering degree. Iltaz has over 15 years of waterproofing experience globally and has worked with several liquid applied waterproofing technologies throughout his professional career.

Greg Austin

Greg Austin is the global product director, specialty building materials, for GCP Applied Technologies. Based in Cambridge, Massachusetts, he has a background in consulting and more than five years of experience in waterproofing system development and construction materials.

Xia Cao

Xia Cao is principal scientist at GCP Applied Technologies. She has more than 12 years of experience in waterproofing system and building materials development, and more than 20 years in material science and process engineering. Cao holds a PhD in chemical engineering and has produced more than 20 technical publications, 10 published patents, and five pending patent applications.

Riccardo Stoppa

Riccardo Stoppa is the global marketing manager of the cement additives division at GCP. He holds a master’s in industrial chemistry from the University of Milan and an MBA from the SDA Bocconi School of Management. Riccardo has contributed to the development and launch of new technologies and products like the CO2ST® reducer, Tavero® VM and innovative services like the GCP DASH® real-time product selection application. GCP chemical additives enable cement and concrete customers to improve the strength and quality of their products. The company takes a holistic approach to tackling CO2 reduction, bringing together chemical research, experienced technical support, lab and field testing, advanced chemistry, and technology to ensure new chemistries they develop bring strength, savings, and sustainability to customers.

Jason Straka

Jason Straka is a VERIFI product manager at GCP. He has worked with VERIFI for the last seven years covering Central Concrete Supply in the Bay Area. Straka manages the utilization and value extraction from GCP’s VERIFI in-transit concrete management system. Prior experience includes 15 years in the ready mix industry in various roles including quality control, sales, and operations.

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