About J.F. Sato

Founded in 1979, J.F. Sato and Associates (JFSA) is a professional consulting engineering firm located in Littleton, Colorado. Currently, our staff members consists of senior-level engineers, designers, surveyors, inspectors, and technicians. JFSA has established a strong presence not only in Colorado but also throughout the continental USA and Latin America.

JFSA specialists provide engineering and construction management services for a wide range of infrastructure projects required to support the demands of today’s urban, rural and protected environments.


President, James F. Sato, PE, SE

Mr. Sato started JFSA in 1979 in Littleton, Colorado as a one-person consulting engineering firm primarily providing civil and structural engineering services. Today, he can be proud to say he has built one of Colorado’s leading engineering firms. Mr. Sato brings extensive experience in planning, design, and construction engineering experience in dams, and reservoirs, penstocks, and discharge lines, canals, and hydroelectric power and pumping plants. His experience includes serving as a special consultant to Latin American countries on water resources development projects. Mr. Sato received his bachelor's degree in Civil Engineering from the University of Hawaii and a master's in Business Administration from the University of Denver.

Secretary/Treasurer, Carol E. Mayeda

Ms. Mayeda joined the firm in 1983 as the Office Manager with a certificate of completion in Business Management from Barnes Business College. Ms. Mayeda is responsible for the overall administration and financial management of the company.

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J.F. Sato & Associates • 5878 South Rapp Street • Littleton, CO 80120 • 303.797.1200 • F: 303.797.1187