Cogstone is celebrating over 20 years of providing cultural and paleontological resources services. We have the qualifications and experience to best serve you.

We strive to develop our working relationships with new and existing clients by providing nothing less than our best on every project and we believe that our deep passion for our profession is reflected in the high quality of our work. We are committed to client satisfaction.

We’re invested in your success. Our values allow our team to provide honest guidance, make ethical decisions, and create successful outcomes for our clients and partners.

Federal Government Agencies


Logo for the Naval Facilities Engineering Systems Command.

U.S. Customs and Border Protection

Logo for U.S. Customs and Border Protection.

Bureau of Land Management

Logo for the Bureau of Land Management, U.S. Department of the Interior.

U.S. Department of Transportation Volpe Center

Logo for the U.S. Department of Transportation, Volpe Center.


Logo for the Western Area Power Administration.

State and Local Government Agencies

City of Morro Bay

Insignia for the City of Morro Bay, California.

City of Orange

Insignia for the City of Orange, Orange County, California.

City of San Juan Capistrano

Insignia for the City of San Juan Capistrano, California.

OC Parks

Logo for Orange County Parks.

Los Angeles County, Department of Arts & Culture

Logo for the Department of Arts & Culture, Los Angeles County.

Los Angeles Metro

Logo for the Los Angeles Metro.

Los Angeles World Airports

Logo for Los Angeles World Airports.

Riverside County Flood Control and Water Conservation District

Logo for the Riverside County Flood Control and Water Conservation District.

Midpeninsula Regional Open Space District

Logo for the Midpeninsula Regional Open Space District.


University of Nevada

Logo for the University of Nevada.

California State University, Fullerton

Logo for California State University, Fullerton.

California State University, Long Beach

Logo for California State University, Long Beach.

A/E Firms

Affirmed Housing

Logo for Affirmed Housing.

BRG Consulting

Logo for B R G Consulting, Incorporated.

CDM Smith

Logo for C D M Smith.

DAWSON Federal, Inc.

Logo for Dawson Federal, Incorporated.

De Novo Planning Group

Logo for De Novo Planning Group.

Dokken Engineering

Logo for Dokken Engineering.

ECORP Consulting, Inc.

ECORP Consulting, Inc. logo

Michael Baker International

Michael Baker International logo

Moffatt & Nichol

Moffatt & Nichol logo

OC405 Partners Joint Venture

OC405 Partners Joint Venture logo

QK Inc

QK Inc logo

Partner Engineering and Science, Inc.

Partner Engineering and Science, Inc. logo


Placeworks logo


Sagecrest logo


Stantec logo