John W. Byer

John has been working in southern California providing his geologic expertise for over 40 years.
E-mail: jbyer@byergeo.com

Robert Zweigler

Robert is a State of California registered geotechnical engineer and certified engineering geologist.  He has more than 30 years experience working in southern California.
E-mail: rzweigler@byergeo.com

Giuseppe Cugno

Giuseppe has over 25 years of experience in geologic and soils enginering consultation in southern California and is president of Byer Geotechnical. He is a California Professional Geologist and Certified Engineering Geologist.
E-mail: gcugno@byergeo.com

Maria Barrios

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E-mail: mbarrios@byergeo.com

Peter Kilbury

Peter is a registered geologist and certified engineering geologist with over 15 years experience. Peter handles the geologic field site visits for projects under construction.
E-mail: pkilbury@byergeo.com

James Tucker

James is a graduate of UCLA with a bachelor of science in engineering geology. He is a California registered Professional Geologist with over 20 years experience in engineering geology and geotechnical engineering.
E-mail: jtucker@byergeo.com

Raffi Babayan

Raffi is a registered civil engineer with a Masters Degree and over 12 years of geotechnical experience. He has provided expertise in residential, commercial, industrial and public works projects throughout Los Angeles, San Bernardino and Riverside counties.
E-mail: rbabayan@byergeo.com

Dr. Hans Hoek

Hans has a Ph.D. in Structural Geology from the University of Utrecht in The Netherlands. He is a Professional Geologist with over four years of experience working in the geotechnical field in California. His previous experience includes research and fieldwork in Europe, Australia, and Antartica.
E-mail: hhoek@byergeo.com

Chris Clark

Chris has five years of combined experience in geologic exploration, grading observations, and landslide investigation. She is a licensed Deputy Grading Inspector with the LADBS and is working toward her California Certification as a Professional Geologist and Certified Engineering Geologist.
E-mail: cclark@byergeo.com

Victor Valdez

Victor has brought his experience from his active duty in the army (95 to 99) to Byer Geotechnical. He has performed field observations, drafting, research and supervisory duties to BG’s field operations since 2005.
E-mail: vvaldez@byergeo.com

David Judd

David Judd has worked in the geotechnical field with John Byer since 1988.  He has performed a variety of geotechnical related inspections from large scale tract grading projects to custom residential projects.

E-mail: djudd@byergeo.com

Fernando Lim

After 25 years of geotechnical experience in the Philippines and surrounding Pacific Islands, Fernando came to the USA and joined the company in 1998.   Fernando has a civil engineer degree and is a registered civil engineer in the Philippines.  

E-mail: flim@byergeo.com

Corey Keene

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E-mail: ckeene@byergeo.com

Eric Covarrubias

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E-mail: ecovarrubias@byergeo.com

John Reed

John has a bachelor of Science in Architecture from U.S.C. He has over 30 years of experience in graphic productions using AutoCAD and manual drafting for Geologist, Land Surveyors, Civil Engineers and Architects of southern California’s land development community.
E-mail: jreed@byergeo.com

Maria Sanchez

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E-mail: msanchez@byergeo.com

Connie Juarez

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E-mail: cjuarez@byergeo.com

Monica Paredes

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E-mail: mparedes@byergeo.com

Meldine Herring

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E-mail: meldine@byergeo.com