GSI ENVIRONMENTAL INC.

GSI ENVIRONMENTAL INC. specializes in advanced environmental remediation research and development, with a focused expertise in per- and polyfluoroalkyl substances (PFAS) characterization, monitoring, and destruction technologies. The company delivers science-driven solutions for complex contamination scenarios, developing in situ treatment systems, sorbent-based barriers, thermal plasma destruction methods, and predictive modeling frameworks for saturated zone PFAS migration. Their technical proficiency spans geochemical analysis, biotic/abiotic interaction protocols, and the integration of field data into decision-support tools, enabling site-specific risk management for defense and environmental agencies. Key differentiators include innovation in novel destruction technologies like thermal steam plasma and the development of web-based platforms for real-time performance communication of remediation outcomes. The contractor maintains a consistent and deep relationship with the Department of Defense, primarily supporting environmental restoration initiatives under ESTCP and SERDP programs. Their work centers on solving urgent PFAS contamination challenges at military installations, delivering field-deployable technologies and scientifically validated protocols to meet DoD’s remediation mandates. This sustained engagement reflects a trusted partnership in addressing emerging contaminants through applied R&D and pilot-scale demonstrations. GSI ENVIRONMENTAL’s primary focus is in NAICS 541715—research and development in physical, engineering, and life sciences—where they translate environmental science into actionable engineering solutions. Their vertical specialization lies in contaminant fate and transport modeling, reactive barrier design, and thermal destruction of fluorinated surfactants, positioning them as a niche provider of high-impact environmental R&D for defense and federal environmental compliance markets. As a small business structured as a 2L entity headquartered in Houston, Texas, GSI ENVIRONMENTAL operates without federal certifications but leverages technical rigor and domain-specific expertise to deliver mission-critical environmental solutions. Their geographic base supports national deployment of field technologies and collaboration with DoD laboratories and test sites across the United States.