Transportation engineering companies in California are engaging in innovative solutions to enhance mobility and efficiency in our daily commute. From Hyperloop technology to autonomous car services, these companies are shaping the future of transport. They provide high-tech equipment, futuristic infrastructure, and research into new transport methodologies, to contribute to the global efforts in tackling traffic congestion and reducing carbon footprints. With diverse offerings including driverless taxi services, high-speed transport networks, and intelligent traffic systems, California's transportation engineering industry aspires to escalate the approach in which individuals and goods are moved.


Top 21 transportation engineering companies in California

1. AutoX

  • Website: autox.ai
  • Headquarters: San Jose, California, United States
  • Founded: 2016
  • Headcount: 1001-5000
  • Latest funding type: Series B
  • LinkedIn

AutoX is an autonomous car company that specializes in providing driverless taxi services. With a focus on accessibility, AutoX aims to make self-driving technology available to everyone. The company has a large engineering team with multiple R&D centers globally. AutoX has successfully removed safety drivers from its fleet of RoboTaxis, making it a pioneer in the field.


2. Hyperloop One

Hyperloop One is a company that specializes in developing and implementing high-speed transportation solutions. They offer cutting-edge technology and infrastructure for hyperloop systems, revolutionizing the way people and goods are transported. Their expertise lies in engineering, construction, and operation of hyperloop networks.


3. Econolite

  • Website: econolite.com
  • Headquarters: Anaheim, California, United States
  • Founded: 1933
  • Headcount: 501-1000
  • LinkedIn

Econolite is a leading provider of Intelligent Transportation Systems (ITS) solutions, committed to improving mobility and saving lives through advanced technologies. They offer a wide range of products and services including traffic signal controllers, sensors, software, and system integration. With regional office locations across North America, Econolite serves transportation agencies and municipalities, providing innovative and cost-effective solutions for traffic and mobility planning and management.


4. KOA Corporation

KOA Corporation is a planning and engineering company that focuses on advancing and connecting communities in Southern California. They provide exceptional service to their clients and specialize in transportation planning and engineering. Their team is dedicated to improving safety and accessibility for all users of transportation facilities, with a particular focus on non-motorized transportation. KOA Corporation also offers grant writing and management services. They have a strong commitment to professionalism and meeting deadlines.


5. Parisi Transportation Consulting

Parisi Transportation Consulting provides transportation planning and traffic engineering services for public agencies, focusing on the safety and usability of city streets. They offer grant application assistance and solutions that align with civic goals and integrate land use decisions. Their team is committed to delivering high-quality and personalized services to clients, including cities, counties, transit agencies, and school districts.


6. Gibson Transportation Consulting, Inc.

Gibson Transportation Consulting Inc. is a transportation analysis company that offers traffic engineering, transportation planning, parking solutions, and visual simulation services.


7. TJW Engineering, Inc.

TJW Engineering is a traffic engineering and transportation planning consulting company that provides a complete range of services to public agencies, contractors, developers, architects, and engineering firms in California.


8. W-Trans

  • Website: w-trans.com
  • Headquarters: Santa Rosa, California, United States
  • Founded: 1995
  • Headcount: 11-50
  • LinkedIn

W-Trans is a transportation planning and engineering consultancy that specializes in retrofitting streets and roads to accommodate all users. They offer services in traffic engineering, transportation design, and complete streets implementation.


9. ADVANTEC Consulting Engineers, Inc.

Advantec Consulting Engineers, Inc. is a company that excels in providing engineering solutions to meet the needs of its clients. They strive to provide safe and efficient solutions for the public they serve. With a focus on delivering high-quality results, they offer services in the field of transportation infrastructure and specialize in innovative multimodal solutions.


10. Ruettgers & Schuler Civil Engineers

  • Website: rscivil.com
  • Headquarters: Bakersfield, California, United States
  • Founded: 1980
  • Headcount: 11-50
  • LinkedIn

Ruettgers & Schuler Civil Engineers is a consulting civil engineering firm specializing in traffic impact and transportation studies. They have provided comprehensive project management for major grade separation projects and work with public agencies and major transportation companies.


11. Y&C Transportation Consultant Inc.

Y&C Transportation Consultants, Inc. is a transportation consulting firm based in the San Francisco Bay Area and Sacramento. We specialize in providing expertise and solutions in areas such as light rail transit, traffic signal design, construction traffic control, and lighting design. With a team of experienced professionals, we offer comprehensive services to support transportation projects. Contact us today for consultation and project assistance.


12. Interwest Consulting Group

Interwest is a community development services company that offers customized solutions for time-sensitive projects. With nearly 20 years of experience in California, Interwest serves as a reliable one-source partner. They provide services such as building department services, planning and urban design, city engineering, real estate, construction management, traffic engineering and transportation planning, capital project delivery, land development design, and civil/transportation design.


13. MNS Engineers

MNS Engineers is a trusted multiservice infrastructure consulting firm, specializing in construction management, civil engineering, and land surveying services.


14. C&V Consulting, Inc

  • Website: cvc-inc.net
  • Headquarters: Irvine, California, United States
  • Founded: 2002
  • Headcount: 11-50
  • LinkedIn

C&V Consulting, Inc. is a multi-disciplinary engineering firm offering a wide range of civil, environmental, transportation, and structural services. With over 30 years of experience, they provide project management, design, inspection, and development services for various infrastructure projects.


15. VRPA Technologies, Inc.

VRPA Technologies is a leading environmental assessment consulting firm that provides comprehensive transportation consulting services throughout the United States. Founded in 1988, VRPA serves clients in both the public and private sectors, including federal, state, and regional agencies, counties, cities, and private planning/engineering firms. They specialize in conducting transportation studies and projects, offering services such as traffic monitoring, congestion management, accident records systems, and environmental assessments. VRPA Technologies is known for its expertise, high-quality work, responsiveness, and commitment to delivering successful projects.


16. AET & Associates, Inc.

AET & Associates is a technology-driven engineering and architecture firm based in Yorba Linda, CA. They specialize in providing innovative solutions to clients through their engineering, planning, and technology services.


17. ITE Western District

  • Website: westernite.org
  • Headquarters: Santa Rosa, California, United States
  • Founded: 1948
  • Headcount: 1001-5000
  • LinkedIn

Westernite.org is the website of the Institute of Transportation Engineers (ITE) Western District. It offers information on leadership tools, committees, awards, mentorship programs, student chapters and resources related to transportation engineering and planning.


18. Rieser Building Group

Rieser Building Group is a construction and engineering company providing services in construction defect, expert witness, safety, traffic, transportation, and engineering/architectural development.


19. Technologies Up

  • Website: technologiesup.com
  • Headquarters: Larkspur, California, United States
  • Headcount: 11-50

TechnologiesUp is a company that provides technology solutions and services to businesses.


20. Illingworth & Rodkin, Inc.

Illingworth & Rodkin is an engineering consulting firm that specializes in acoustics and air quality. With over 30 years of experience, they provide expert consulting services in measurements, environmental, transportation, architectural, industrial, and marine construction. Their consultants are dedicated to delivering quality service and have conducted over 4,500 proprietary studies.


21. Cal Poly SLO ITE

Cal Poly ITE is a student chapter of the Institute of Transportation Engineers. The organization provides resources, events, and projects for students interested in transportation engineering.


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