Tetra Tech
company in Pasadena, United States
Tetra Tech, Inc. is an American consulting and engineering services firm based in Pasadena, California. The company provides consulting, engineering, program management, and construction management services in the areas of water, environment, infrastructure, resource management, energy, and international development.
History
Tetra Tech, Inc. was founded in 1966 as the Water Management Group of Tetra Tech Inc., by Nicholas Boratynski, Henri Hodara, Bernard LeMéhauté, and Don Stern.
During its early years, the company designed waterway structures at harbors, ports, and marinas; supported water quality control projects; supported oil and gas exploration projects; and calculated the effects of offshore military activities for the Department of Defense.
In 1977, Tetra Tech offered common stock on the American Stock Exchange and used this capital to expand its services, from developing methods to predict the level and frequency of floods and causes of acid rain to environmental impact studies of gas pipeline construction and installing Hydro Products equipment for the United States Navy. By 1979, Tetra Tech was helping to analyze data used in exploring the Alaska North Slope for oil.
In 1982, Honeywell purchased Tetra Tech's U.S. operations and another group acquired Tetra Tech International. The company phased out gas exploration and related products and phased in data systems.
Begin with the source’s own compact description: “Tetra Tech” is company in Pasadena, United States. The dossier treats that line as a proposition to test through Tetra, Tech and company, not as a finished interpretation.
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The record creator and administrative purpose are central evidence, because official documentation reflects both action and institutional priorities. The source revision retrieved here is dated Sep 6, 2026. The linked authority identifier is Q7706196. VIAF identifies the subject as 137725618. 3 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1966, 1977, 1979 and 1982.
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This entry incorporates text from “Tetra Tech” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.