Bio Clean Environmental Services, Inc.
Affiliate Member, Oceanside
760-433-7640
Manufacture, distribute and install stormwater filtration systems. Also provide to civil engineers, assistance with designing with the products.

Steven Devin, PE
Sierra Chapter, Quincy
530-283-2553
Geotechnical engineering, soil and rock mechanics, slope stability, hydrologic/hydraulic engineering, storm water drainage design, flood plain studies, and civil engineering.

Geocon Inland Empire, Inc.
Riverside-San Bernardino Chapter, Murrieta
951-304-2300
Geotechnical, environmental engineering, materials testing and consulting services. Geocon, Inc. serves the development and public works sectors throughout California.

Guida Surveying, Inc.
Non-Chapter Member, La Quinta
760-393-5353
ALTA surveys, land surveying, sub-division staking, boundary surveying, topographic survey, bridge survey.

Hall & Foreman, Inc.
Los Angeles County Chapter, Woodland Hills
818-251-1200
Civil engineering, land surveying, land planning and public works.

Hall & Foreman, Inc.
Los Angeles County Chapter, Santa Clarita
661-284-7400
Civil engineering, land surveying, land planning and public works.

Infrastructure Engineering Corporation
Non-Chapter Member, Los Alamitos
562-344-9060
Infrastructure Engineering Corporation (IEC) provides water and wastewater planning, design, construction management/inspection, and general civil engineering services to municipalities and water and sanitation districts throughout California.

Mike S. Modugno Consulting, Inc.
Channel Coast Chapter, Carpinteria
805-684-1707
Electrical consultant expert witness.

T.Y. Lin International
Non-Chapter Member, Oakland
510-457-3030
T.Y. Lin International is an internationally recognized, multi-discipline civil and structural engineering firm. It is committed to providing innovative, cost-effective, easily constructible designs for the global transportation infrastructure market, specializing in the following: design of bridges, highways, and transportation facilities; seismic retrofit and rehabilitation of existing structures; transportation planning and engineering; and general civil engineering.

For more information on becoming a member of CELSOC, call (916) 441-7991 or email staff@celsoc.org.