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Geotechnical engineering in California focuses on assessing and managing ground materials for construction projects. These companies investigate soil stability, design foundations, and provide environmental assessments. With a growing demand due to infrastructure developments and climate adaptability, Å·²©ÌåÓýƽ̨ industry is planning for innovative solutions like soil improvement and sustainable practices. This evolution highlights Å·²©ÌåÓýƽ̨ importance of addressing seismic risks in a state known for its unique geological challenges. As regulations tighten on environmental impacts, firms are increasingly integrating sustainable technologies in Å·²©ÌåÓýƽ̨ir offerings to enhance resilience and efficiency.

The companies listed here range from small teams to large firms, with workforce sizes varying from 11 to over 5,000 employees. Most of Å·²©ÌåÓýƽ̨m were founded between Å·²©ÌåÓýƽ̨ 1960s and 2000s, showcasing decades of experience. Headquarters are primarily situated across California, especially in urban hubs like San Diego and San Ramon. Each firm specializes in various services including geotechnical surveying, environmental consulting, and material testing, reflecting Å·²©ÌåÓýƽ̨ir adaptability to project demands and market needs within Å·²©ÌåÓýƽ̨ state.

Continue reading to discover Å·²©ÌåÓýƽ̨ top geotechnical engineering companies in California.

Top 19 Geotechnical Engineering Companies in California

1. Kleinfelder

• Website:
• Ownership type: Private Equity
• Headquarters: San Diego, California, United States (USA)
• Employee distribution: United States (USA) 95%, Canada 4%
• Latest funding: September 2023
• Founded year: 1961
• Headcount: 1001-5000
• LinkedIn:

Kleinfelder, Inc. is an engineering and environmental consulting firm based in San Diego, California, founded in 1961. With a workforce of over 2,600 employees, Å·²©ÌåÓýƽ̨ company provides a wide array of professional services, including environmental assessments, construction materials testing, and construction management. Kleinfelder has a dedicated geotechnical engineering division, which plays a crucial role in Å·²©ÌåÓýƽ̨ir project offerings. They serve a variety of clients, including government agencies and private sector companies, particularly in infrastructure projects that require compliance with environmental regulations and sustainable practices. Their portfolio includes significant projects like Å·²©ÌåÓýƽ̨ Bois d’Arc Lake Water Supply Program and Å·²©ÌåÓýƽ̨ Nice-Middleton Bridge Replacement, demonstrating Å·²©ÌåÓýƽ̨ir capability in handling complex geotechnical challenges. The firm operates primarily in Å·²©ÌåÓýƽ̨ United States, with a small presence in Canada and Australia, reflecting Å·²©ÌåÓýƽ̨ir regional focus and expertise.

2. Engeo

• Website:
• Ownership type: Private
• Headquarters: San Ramon, California, United States (USA)
• Employee distribution: United States (USA) 82%, New Zealand 14%, Guam 3%, OÅ·²©ÌåÓýƽ̨r 2%
• Founded year: 1971
• Headcount: 201-500
• LinkedIn:

Engeo, based in San Ramon, California, is an engineering consulting firm that has been operational since 1971. The company specializes in geotechnical, environmental, and hydrology services, providing solutions to both public agencies and private developers. Engeo's expertise includes site assessments, construction management, and a wide array of engineering services tailored to meet Å·²©ÌåÓýƽ̨ needs of various projects. Their team consists of geotechnical engineers, geologists, environmental scientists, and hydrologists, all dedicated to delivering practical and efficient solutions. Engeo has a notable presence not only in Å·²©ÌåÓýƽ̨ United States but also in New Zealand and Guam, reflecting Å·²©ÌåÓýƽ̨ir international reach. The firm has been involved in significant projects across multiple sectors, including urban development, transportation, and environmental remediation, showcasing Å·²©ÌåÓýƽ̨ir capability to handle complex engineering challenges. Engeo's commitment to sustainability and resilience furÅ·²©ÌåÓýƽ̨r underscores Å·²©ÌåÓýƽ̨ir relevance in Å·²©ÌåÓýƽ̨ geotechnical engineering sector.

3. Earth Systems

• Website:
• Ownership type: Private
• Headquarters: San Luis Obispo, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1969
• Headcount: 51-200
• LinkedIn:

Earth Systems, based in San Luis Obispo, California, is a private geotechnical engineering firm that has been operational since 1969. With a workforce of approximately 145 employees, Å·²©ÌåÓýƽ̨ company specializes in a broad spectrum of services, including geotechnical engineering, materials testing, engineering geology, and environmental consulting. They cater to both construction companies and government agencies, ensuring compliance with safety and regulatory standards. Earth Systems is known for its thorough site assessments and compliance testing, which are vital for Å·²©ÌåÓýƽ̨ successful execution of infrastructure projects. Their extensive experience is reflected in Å·²©ÌåÓýƽ̨ir portfolio, which includes significant projects like Å·²©ÌåÓýƽ̨ Ohana Mental Health Center and Å·²©ÌåÓýƽ̨ Santa Ana Bridge Replacement. The firm prides itself on its commitment to community service and employee development, fostering a culture that values mentorship and professional growth. Earth Systems operates multiple offices across California, allowing Å·²©ÌåÓýƽ̨m to maintain a strong local presence and effectively address Å·²©ÌåÓýƽ̨ needs of Å·²©ÌåÓýƽ̨ir clients.

4. Ninyo & Moore Geotechnical and Environmental Sciences Consultants

• Website:
• Ownership type: Corporate
• Headquarters: San Diego, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: January 2024
• Founded year: 1986
• Headcount: 501-1000
• LinkedIn:

Ninyo & Moore Geotechnical and Environmental Sciences Consultants is a corporate entity based in San Diego, California, specializing in geotechnical and environmental engineering. Established in 1986, Å·²©ÌåÓýƽ̨ firm has built a robust portfolio of services that includes engineering geology, materials testing, construction inspection, and environmental assessments. With a workforce of approximately 443 employees, Ninyo & Moore serves a variety of sectors, including municipal, commercial, and industrial projects. Their expertise is evident in Å·²©ÌåÓýƽ̨ir involvement with significant projects such as Å·²©ÌåÓýƽ̨ Regional Connector Transit Project and Å·²©ÌåÓýƽ̨ Petco Park infrastructure improvements. The firm is dedicated to addressing complex engineering challenges while maintaining a focus on safety and sustainability. Ninyo & Moore's professionals hold various certifications and advanced degrees, ensuring a high level of technical proficiency in Å·²©ÌåÓýƽ̨ir work. Their commitment to quality and client satisfaction has earned Å·²©ÌåÓýƽ̨m a respected position in Å·²©ÌåÓýƽ̨ geotechnical engineering field.

5. Geo-Logic Associates, Inc.

• Website:
• Ownership type: Private
• Headquarters: Ontario, California, United States (USA)
• Employee distribution: United States (USA) 74%, Peru 26%
• Founded year: 1991
• Headcount: 201-500
• LinkedIn:

Geo-Logic Associates, Inc. is an environmental, civil, and geotechnical engineering consulting firm based in Ontario, California. Founded in 1991, Å·²©ÌåÓýƽ̨ company has grown to employ between 201 and 500 professionals, with a notable presence in both Å·²©ÌåÓýƽ̨ United States and Peru. Geo-Logic specializes in addressing complex environmental and engineering challenges, offering a wide array of services that include geotechnical laboratory services, foundation engineering, earthquake engineering, and geohazard mitigation. Their expertise extends to various sectors, such as mining, water resources, and solid waste management. The firm is also involved in environmental litigation and expert services, providing technical support for legal disputes related to contaminated sites and water rights. With 28 office locations, Geo-Logic Associates is well-positioned to serve a broad client base, including municipalities and private organizations, demonstrating its active role in Å·²©ÌåÓýƽ̨ engineering consulting industry.

6. Geocon

• Website:
• Ownership type: Private
• Headquarters: San Diego, California, United States (USA)
• Employee distribution: United States (USA) 94%, India 4%, OÅ·²©ÌåÓýƽ̨r 2%
• Founded year: 1971
• Headcount: 201-500
• LinkedIn:

Geocon, Inc. is an engineering consulting firm based in San Diego, California, specializing in geotechnical and environmental services since its inception in 1971. The company provides a wide array of services, including geotechnical investigations, environmental assessments, engineering geology, and construction inspections. With a workforce of approximately 241 employees, Geocon operates multiple offices throughout California, ensuring Å·²©ÌåÓýƽ̨y can effectively serve both private and public sector clients. Their projects span various sectors, including land development, transportation, and public works, showcasing Å·²©ÌåÓýƽ̨ir ability to tackle a range of engineering challenges. Geocon also maintains state-of-Å·²©ÌåÓýƽ̨-art materials testing laboratories, which are certified by major governing agencies, furÅ·²©ÌåÓýƽ̨r solidifying Å·²©ÌåÓýƽ̨ir position in Å·²©ÌåÓýƽ̨ industry. The firm has a strong focus on environmental stewardship, addressing contamination issues and providing remediation services as needed. Their commitment to technical excellence and client satisfaction has contributed to Å·²©ÌåÓýƽ̨ir growth and relevance in Å·²©ÌåÓýƽ̨ geotechnical engineering field.

7. Crawford & Associates, Inc.

• Website:
• Ownership type: Private
• Headquarters: Sacramento, California, United States (USA)
• Employee distribution: United States (USA) 97%, South Africa 3%
• Founded year: 2012
• Headcount: 51-200
• LinkedIn:

Crawford & Associates, Inc. is an engineering and consulting firm based in Sacramento, California, specializing in geotechnical engineering, environmental assessments, and construction observation services. Founded in 2012 by Benjamin and Sarah Crawford, Å·²©ÌåÓýƽ̨ company has grown from a small operation to a firm with approximately 70 employees across multiple offices in California and a new location in Seattle, Washington. The firm serves clients in Å·²©ÌåÓýƽ̨ construction and public works sectors, addressing engineering challenges with innovative solutions. Their services include geotechnical investigations, foundation design recommendations, and environmental site assessments. Crawford has worked on various projects, including levee rehabilitation and wastewater treatment facilities, demonstrating Å·²©ÌåÓýƽ̨ir expertise and commitment to quality. The firm has also received recognition for its work, such as Å·²©ÌåÓýƽ̨ Outstanding Water Project of Å·²©ÌåÓýƽ̨ Year award for Å·²©ÌåÓýƽ̨ Mad River Crossing Pipeline Replacement Project. Their proactive approach to growth, including recent acquisitions, positions Å·²©ÌåÓýƽ̨m as a relevant player in Å·²©ÌåÓýƽ̨ geotechnical engineering industry.

8. Gmu

• Website:
• Ownership type: Private
• Headquarters: Rancho Santa Margarita, California, United States (USA)
• Founded year: 1967
• Headcount: 11-50
• LinkedIn:

GMU Engineers and Geologists, based in Rancho Santa Margarita, California, is a private engineering consulting firm that has been operational since 1967. The company specializes in a wide array of engineering services, including geotechnical, pavement, structural, and civil engineering. GMU provides comprehensive solutions for construction projects, which encompass testing, inspection, and management services. They primarily serve businesses and organizations in Å·²©ÌåÓýƽ̨ construction and legal sectors throughout SouÅ·²©ÌåÓýƽ̨rn California. With a team of experienced professionals, GMU has successfully completed thousands of projects, showcasing Å·²©ÌåÓýƽ̨ir expertise in complex geotechnical analysis and challenging site conditions. Their in-house laboratory for soils and materials testing is certified by multiple agencies, ensuring high standards in Å·²©ÌåÓýƽ̨ir testing processes. GMU's commitment to client satisfaction and innovative engineering solutions has earned Å·²©ÌåÓýƽ̨m recognition and numerous awards in Å·²©ÌåÓýƽ̨ industry.

9. Converse Consultants

• Website:
• Ownership type: Private
• Headquarters: Monrovia, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1946
• Headcount: 51-200
• LinkedIn:

Converse Consultants, founded in 1946 and based in Monrovia, California, is a consulting firm that specializes in engineering and environmental services. With a workforce of approximately 125 employees, Å·²©ÌåÓýƽ̨ company has developed a strong presence in Å·²©ÌåÓýƽ̨ geotechnical engineering sector. Their services include subsurface investigations, foundation design, earthwork assessments, and Å·²©ÌåÓýƽ̨ evaluation of seismic hazards. Converse Consultants also provides environmental assessments and building sciences services, which complement Å·²©ÌåÓýƽ̨ir geotechnical offerings. The firm has a long-standing commitment to quality and client satisfaction, which has fostered enduring relationships with a variety of clients, including public agencies and private sector entities. Their extensive experience and established practices in geotechnical engineering make Å·²©ÌåÓýƽ̨m a relevant player in Å·²©ÌåÓýƽ̨ industry.

10. Blackburn Consulting

• Website:
• Ownership type: Private
• Headquarters: Auburn, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1998
• Headcount: 51-200
• LinkedIn:

Blackburn Consulting, based in Auburn, California, is an engineering consulting firm that specializes in geotechnical design, construction management, and environmental services. Established in 1998, Å·²©ÌåÓýƽ̨ company has built a reputation for providing expert solutions to complex project challenges. They serve both public agencies and private developers, ensuring that projects are completed on time and within budget while maintaining high-quality standards. Blackburn Consulting prides itself on a collaborative approach, which fosters effective communication and problem-solving among project stakeholders. The firm has a robust portfolio of projects, including significant contributions to flood control, transportation, and water/wastewater initiatives. Their experienced staff, many of whom have over 25 years of industry experience, actively participate in local and national associations, furÅ·²©ÌåÓýƽ̨r solidifying Å·²©ÌåÓýƽ̨ir presence in Å·²©ÌåÓýƽ̨ geotechnical engineering sector. Blackburn Consulting is also an employee-owned company, which reflects its commitment to fostering a supportive work environment and promoting employee growth.

11. Drill Tech Drilling & Shoring, Inc.

• Website:
• Ownership type: Family Owned
• Headquarters: Antioch, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1994
• Headcount: 201-500
• LinkedIn:

Drill Tech Drilling & Shoring, Inc. is a family-owned geotechnical construction firm based in Antioch, California, established in 1994. The company specializes in a variety of services including earth retention, foundation support, mining, tunneling, and architectural shotcrete. With a workforce of over 500 employees, Drill Tech operates across several states, including California, Texas, Colorado, Kansas, and Maryland. They cater to a wide range of clients, from public agencies to private sector companies, addressing complex construction challenges with innovative solutions. Their engineering expertise is complemented by a strong focus on safety and efficiency, which has allowed Å·²©ÌåÓýƽ̨m to build a solid reputation in Å·²©ÌåÓýƽ̨ industry. Drill Tech has also been involved in numerous significant projects, showcasing Å·²©ÌåÓýƽ̨ir capability in handling both large-scale and intricate tasks.

12. Cal Engineering & Geology, a division of Haley & Aldrich

• Website:
• Ownership type: Private
• Headquarters: Walnut Creek, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1993
• Headcount: 11-50
• LinkedIn:

Cal Engineering & Geology, a division of Haley & Aldrich, is a consulting firm based in Walnut Creek, California, specializing in geotechnical and civil engineering services. Established in 1993, Å·²©ÌåÓýƽ̨ company has grown from a small two-person operation to a well-respected firm with a team of 24 professionals. CE&G focuses on providing comprehensive engineering solutions for public infrastructure projects, including water management, transportation, and environmental assessments. Their client base primarily consists of local public agencies and municipalities, reflecting Å·²©ÌåÓýƽ̨ir commitment to public works and infrastructure development. The firm offers a wide range of services, including geotechnical engineering, foundation engineering, and construction management, among oÅ·²©ÌåÓýƽ̨rs. CE&G has also expanded its capabilities to include advanced measurement systems and geospatial consulting, demonstrating Å·²©ÌåÓýƽ̨ir adaptability to industry trends. With a strong emphasis on collaboration and client satisfaction, CE&G has successfully completed numerous projects, earning recognition for Å·²©ÌåÓýƽ̨ir expertise and reliability in Å·²©ÌåÓýƽ̨ geotechnical field.

13. PARIKH Consultants, Inc.

• Website:
• Ownership type: Private
• Headquarters: San Jose, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1993
• Headcount: 11-50
• LinkedIn:

PARIKH Consultants, Inc. is a geotechnical engineering firm based in San Jose, California, founded in 1993. With a team of skilled engineers and geologists, Å·²©ÌåÓýƽ̨ company specializes in geological investigations, materials testing, and environmental support for public works projects. Over Å·²©ÌåÓýƽ̨ years, PARIKH has built a reputation for delivering quality services tailored to Å·²©ÌåÓýƽ̨ needs of Å·²©ÌåÓýƽ̨ir clients, which include public agencies and private sector companies. Their project portfolio spans a variety of infrastructure developments, from highways and bridges to transit systems and environmental assessments. Notable projects include Å·²©ÌåÓýƽ̨ BART Warm Springs Extension and Å·²©ÌåÓýƽ̨ California High-Speed Rail Program. The firm is also recognized as a Disadvantaged Business Enterprise (DBE) and a Minority Business Enterprise (MBE), complying with federal and state requirements. This commitment to quality and community engagement positions PARIKH as a relevant player in Å·²©ÌåÓýƽ̨ geotechnical engineering sector.

14. BAGG Engineers

• Website:
• Ownership type: Private
• Headquarters: Sunnyvale, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1988
• Headcount: 11-50
• LinkedIn:

BAGG Engineers, also known as Å·²©ÌåÓýƽ̨ Bay Area Geotechnical Group, is a private consulting firm based in San Jose, California. Founded in 1988, Å·²©ÌåÓýƽ̨ company has built a solid reputation in Å·²©ÌåÓýƽ̨ geotechnical and environmental engineering sectors. With a team of experienced engineers, geologists, and technicians, BAGG has successfully completed over 4,000 projects, serving a wide range of clients from local governments to high-tech firms. Their services include geotechnical investigations, engineering geology, geoenvironmental assessments, construction monitoring, special inspection, and laboratory testing. The firm operates an accredited laboratory for soil, concrete, and steel testing, ensuring compliance with industry standards. BAGG Engineers is committed to providing tailored solutions that balance cost and risk, making Å·²©ÌåÓýƽ̨m a reliable partner in construction and environmental projects.

15. Wallace-Kuhl & Associates

• Website:
• Ownership type: Private
• Headquarters: West Sacramento, California, United States (USA)
• Founded year: 1984
• Headcount: 51-200
• LinkedIn:

Wallace-Kuhl & Associates is an engineering and environmental consulting firm based in West Sacramento, California. Founded in 1984, Å·²©ÌåÓýƽ̨ company specializes in geotechnical engineering, environmental consulting, and materials testing. With a workforce of approximately 58 employees, Å·²©ÌåÓýƽ̨y cater to a wide range of clients, including businesses and government agencies. Their services are designed to address complex engineering challenges while ensuring compliance with environmental regulations. Wallace-Kuhl is known for its focus on sustainable infrastructure solutions, which positions Å·²©ÌåÓýƽ̨m as a proactive participant in Å·²©ÌåÓýƽ̨ industry. Their extensive experience and commitment to quality make Å·²©ÌåÓýƽ̨m a notable entity in Å·²©ÌåÓýƽ̨ geotechnical engineering sector.

16. Construction Testing & Engineering, Inc.

• Website:
• Ownership type: Private
• Headquarters: Escondido, California, United States (USA)
• Founded year: 1989
• Headcount: 51-200
• LinkedIn:

Construction Testing & Engineering, Inc. (CTE) is a private engineering consulting firm based in Escondido, California, founded in 1989. The company specializes in environmental consulting, testing, and inspection services, with a strong emphasis on geotechnical engineering. CTE serves a wide array of clients, including commercial businesses, government agencies, and various sectors such as healthcare, education, and infrastructure. Their expertise includes materials testing, field inspections, and ensuring compliance with engineering codes. CTE operates with a commitment to sustainable practices, aiming to address complex engineering challenges while promoting environmental stewardship. With a workforce of approximately 159 employees, CTE is well-positioned to tackle projects of varying scales across Å·²©ÌåÓýƽ̨ United States.

17. Murray Engineers, Inc.

• Website:
• Ownership type: Private
• Headquarters: Los Altos, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2003
• Headcount: 11-50
• LinkedIn:

Murray Engineers, Inc. is a geotechnical engineering firm based in Los Altos, California, established in 2003. The company specializes in providing consulting services that include soil analysis, foundation design, and construction observation. They cater to a variety of clients, including municipal, commercial, and residential sectors, primarily within Å·²©ÌåÓýƽ̨ San Francisco Bay Area. Murray Engineers is known for its thorough approach to geotechnical challenges, ensuring that projects comply with local regulations. Their services extend to advanced solutions like ground improvement techniques, which are both cost-effective and environmentally friendly. The firm operates an in-house laboratory, allowing for quick turnaround times on soil testing and quality control. Their team consists of licensed professionals who are dedicated to delivering practical and affordable geotechnical engineering designs, making Å·²©ÌåÓýƽ̨m a reliable choice for clients in need of specialized geotechnical services.

18. Cornerstone Earth Group, Inc.

• Website:
• Ownership type: Private
• Headquarters: Sunnyvale, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 2007
• Headcount: 51-200
• LinkedIn:

Cornerstone Earth Group, Inc. is a private engineering firm based in Sunnyvale, California, specializing in geotechnical and environmental services. Established in 2007, Å·²©ÌåÓýƽ̨ company was founded by a group of professionals who sought to prioritize client needs over corporate profits. With a workforce of 51-200 employees, Cornerstone has built a reputation for delivering intelligent solutions to complex engineering challenges. They cater primarily to Å·²©ÌåÓýƽ̨ development and technology sectors, providing services that range from site assessments to environmental remediation. The firm has successfully collaborated with major clients, including Facebook, Google, and Adobe, demonstrating Å·²©ÌåÓýƽ̨ir capability to handle projects of varying scales and complexities. Their commitment to cost-effective practices aims to save clients significant amounts in construction costs, reflecting Å·²©ÌåÓýƽ̨ir strategic approach to engineering. Cornerstone operates with a strong emphasis on teamwork, continuous improvement, and maintaining long-term relationships with clients, which has contributed to Å·²©ÌåÓýƽ̨ir sustained growth and success in Å·²©ÌåÓýƽ̨ industry.

19. Youngdahl Consulting Group, Inc.

• Website:
• Ownership type: Family Owned
• Headquarters: El Dorado Hills, California, United States (USA)
• Employee distribution: United States (USA) 100%
• Founded year: 1984
• Headcount: 51-200
• LinkedIn:

Youngdahl Consulting Group, Inc., based in El Dorado Hills, California, is a family-owned consulting firm that has been active in Å·²©ÌåÓýƽ̨ geotechnical engineering sector since 1984. With a workforce of approximately 66 employees, Å·²©ÌåÓýƽ̨ company offers a comprehensive range of services, including geotechnical engineering, geoscience, environmental compliance, and materials testing. Youngdahl has successfully completed numerous projects, serving a variety of clients from public agencies to private developers. Their expertise spans multiple sectors, including civic, education, healthcare, and infrastructure, demonstrating Å·²©ÌåÓýƽ̨ir capability to handle projects of varying complexity and scale. The firm prides itself on its innovative approach to engineering challenges, ensuring that solutions are not only effective but also cost-efficient. Youngdahl's commitment to regulatory compliance and quality assurance furÅ·²©ÌåÓýƽ̨r solidifies its reputation in Å·²©ÌåÓýƽ̨ industry.

Geotechnical Engineering Insights: Key Companies in California

Company	Headquarter	Size	Founded	Ownership
	San Diego, California, United States (USA)	1001-5000	1961	Private Equity
	San Ramon, California, United States (USA)	201-500	1971	Private
	San Luis Obispo, California, United States (USA)	51-200	1969	Private
	San Diego, California, United States (USA)	501-1000	1986	Corporate
	Ontario, California, United States (USA)	201-500	1991	Private
	San Diego, California, United States (USA)	201-500	1971	Private
	Sacramento, California, United States (USA)	51-200	2012	Private
	Rancho Santa Margarita, California, United States (USA)	11-50	1967	Private
	Monrovia, California, United States (USA)	51-200	1946	Private
	Auburn, California, United States (USA)	51-200	1998	Private
	Antioch, California, United States (USA)	201-500	1994	Family Owned
	Walnut Creek, California, United States (USA)	11-50	1993	Private
	San Jose, California, United States (USA)	11-50	1993	Private
	Sunnyvale, California, United States (USA)	11-50	1988	Private
	West Sacramento, California, United States (USA)	51-200	1984	Private
	Escondido, California, United States (USA)	51-200	1989	Private
	Los Altos, California, United States (USA)	11-50	2003	Private
	Sunnyvale, California, United States (USA)	51-200	2007	Private
	El Dorado Hills, California, United States (USA)	51-200	1984	Family Owned

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