ABOUT US> Our Team

Richard Haro
President/ Owner

Richard Haro started HSI Engineering to provide a technical approach that addresses the design, testing, and construction quality assurance of the chemical stabilization process. Richard Haro has been an innovator in the engineering consulting and construction industry in California for more than 30 years. His hands-on management style and technical excellence has translated to innovative project solutions for constructability issues, advance quality control techniques, and facilitation of his clients’ goals.

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Donatas "Don" Greb, PE
Vice-President/ Owner

Mr. Greb is a registered civil engineer and licensed stabilization contractor with more than 26 years of design and construction experience.  He has served in all capacities supporting the design and construction of chemical stabilization for transportation, rehabilitation and infrastructure projects. He has solid experience in the testing, design, analysis, construction and inspection of chemical stabilization, with specific strengths in Value Engineering applications.  

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