GSI Environmental Inc. Email Format

Environmental ServicesTexas, United States201-500 Employees

GSI Environmental Inc. is an environmental engineering and science consulting firm that helps measure, analyze, and resolve complex environmental challenges for projects worldwide. Its work encompasses practical approaches to environmentally responsible industrial operations and property development, along with toxicological analysis and chemical hazard management, sustainable development of water and other natural resources, and the protection of rivers and estuaries. The firm combines hands-on experience with current research to provide timely, targeted answers to environmental questions.

Headquartered in Houston, Texas, the company operates as a mid-sized services firm with a global reach. A notable recent development is the June 2025 launch of a Fish Consumption Advisory Calculator designed to support regulators, consumers, and risk assessors navigating PFOS advisories across states.

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