GSI Environmental Inc.

GSI Environmental Inc. is an American environmental consulting firm headquartered in Houston, Texas. The company describes itself as a team of "environmental experts" focused on "measuring, analyzing and solving complex environmental problems." Its work spans applied environmental research, site assessment, contaminant fate-and-transport analysis, groundwater and soil investigation, risk assessment, regulatory compliance support, and expert services for legal matters. According to its official website, GSI was founded in 1986 and began as a two-person company. Over four decades it grew into a multidisciplinary firm serving clients across a range of industries. The firm's stated markets include industrial, water, energy and minerals, real estate, government, and legal sectors, each with distinct technical and regulatory needs. GSI positions itself around rigorous science, collaboration, and practical problem-solving, with the tagline "making science count." GSI's service offering includes technical consulting and specialized training. Among its documented programs is a two-day training course on the Texas Risk Reduction Program (TRRP; 30 TAC 350), which it presents for environmental professionals and sponsors through the Texas Association of Environmental Professionals (TAEP). The TRRP framework establishes risk-based protocols for assessing and responding to soil, groundwater, or surface water impacts from releases of regulated wastes or substances. GSI also lists modeling among its service areas, reflecting its emphasis on quantitative analysis of environmental systems. The firm is privately held and operates primarily in the United States from its Houston base. In 2026 it marked its 40th anniversary, celebrating the clients, employees, and partners who shaped the company since 1986. GSI maintains an active professional presence, including on LinkedIn, where it shares news, events, and company milestones. Its leadership is described on its website as recognized leaders in applied environmental research and subject matter experts.

GSI Environmental Inc. was founded in 1986 and began as a two-person company. From that small start, it grew over the following decades into a multidisciplinary environmental consulting firm. The company's own account of its history emphasizes continuity of purpose: rigorous science, thoughtful collaboration, and a drive to solve environmental problems that matter to clients and communities. By the 2020s, GSI had established itself as a Houston-based firm serving a broad set of markets. Its website lists industrial, water, energy and minerals, real estate, government, and legal clients as core customer groups, each with unique needs and requirements. The firm's technical work includes measuring, analyzing, and solving complex environmental problems, with service areas that include modeling and applied environmental research. GSI also contributes to professional education. In 2022 it presented a two-day training program on the Texas Risk Reduction Program (TRRP; 30 TAC 350), a Texas regulatory framework that establishes risk-based protocols for assessing and responding to soil, groundwater, or surface water impacts associated with releases of regulated wastes or substances. The course, sponsored by the Texas Association of Environmental Professionals (TAEP), covered the TRRP framework, property assessment and response action procedures, protective concentration levels, and the report forms adopted by the Texas Commission on Environmental Quality (TCEQ). In 2026, GSI celebrated its 40th anniversary. The company framed the milestone as belonging to the people who made it possible—clients, employees, and partners—and described its forward-looking commitment as delivering sound science, practical insight, and solutions designed to stand the test of time. The firm maintains an active presence on LinkedIn, where it shares company news, events, and milestones.

• 2026

  GSI Environmental celebrates its 40th anniversary.

• 2022

  GSI presents a two-day TRRP training program in Houston, sponsored by the Texas Association of Environmental Professionals.

• 1986

  GSI Environmental Inc. is founded as a two-person company.

A multidisciplinary environmental consulting firm emphasizing rigorous science, practical insight, and solutions designed to stand the test of time.

• Environmental consulting services

  Measuring, analyzing and solving complex environmental problems for clients across multiple industries.

• Modeling services

  Quantitative modeling of environmental systems as part of GSI's service offering.

• TRRP training course

  A two-day course on the Texas Risk Reduction Program framework, property assessment, protective concentration levels, and response actions.

1. 1Home - GSI Environmental Inc.gsienv.com
2. 2Overview - GSI Environmental Inc.gsienv.com
3. 3Services - GSI Environmental Inc.gsienv.com
4. 4Modeling - GSI Environmental Inc.gsienv.com
5. 5GSI Environmental (United States) - Wikidatawikidata.org