3Vi, Inc.
San Ramon, CAEngineering Excellence for a Sustainable Future
Service detail: Systems Engineering & Integration
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Engineering Excellence for a Sustainable Future
Service detail: Systems Engineering & Integration

Harmonizing the built environment with the natural.
Service detail: Land Development

Moving Our Communities Infrastructure Forward
Project: Gateway Park

Building America from the ground up since 1993
Project: I-405 Improvement Project
Enhancing communities and the built environment.
Project: SFO Harvey Milk Terminal Boarding Area B

Best-In-Class Engineering Expertise
Project: Fremont Blvd/Old Warm Springs Blvd - New Signal
AKT Peerless Environmental Services is an environmental consulting and redevelopment firm with more than 35 years of experience and offices across the Midwest, Southeast, and coasts. It serves developers, real estate professionals, financial institutions, government agencies, industrial and manufacturing clients, and petroleum companies. AKT Peerless delivers environmental due diligence, brownfield redevelopment, storage tank compliance, vapor intrusion assessment, environmental remediation, construction loan monitoring, industrial hygiene, sustainability services, and economic development incentive consulting. Its tank services division, AKT Tank Services, focuses on underground and aboveground storage tank work for fuel companies and transportation clients across the Northeast and Midwest.
Service detail: Real Estate Environmental Risk Management

Large Firm Expertise Small Firm Values
Service detail: Transportation Engineering
Efficient Management in Infrastructure Construction
Service detail: Construction Management and Inspection

Geotechnical, Civil, and Structural Engineering Across California and the Western States
Project: LA Metro Gold Line - MSE Wall
Fundamentally Better Engines
Project: Ultralow NOx Diesel Heavy-Duty Engine Deployment

Building Tomorrow's Legacy, Today
Service detail: Materials Testing Laboratory

Acoustical consulting services for transportation, aviation, and community noise
Project: Los Angeles-Pasadena Light Rail Transit Corridor EIR

Engineering a quieter world and optimizing aural environments, one project at a time.
Project: CalSTRS Headquarters 2.0

Improving Mobility and Access
Project: Link21 Program's New Transbay Rail Crossing

Transportation Solutions in an Electronic World
Project: I-405 Widening and Express Lanes - Bellevue to Lynnwood (B2L)
Experience. Passion. Excellence.
Project: BD Utility Chiller Plant (Project Granite)

Leading Experts in Transportation Engineering
Service detail: Traffic Engineering
The autonomous civil engineer for critical infrastructure
Project: San Bernardino International Airport LAIRA Deployment

Founded in 1980, Aliquot Associates, Inc. is a multi-disciplinary engineering and surveying firm serving public and private clients across the San Francisco Bay Area. The practice offers civil engineering, traffic engineering, and land surveying services from offices in Oakland and Walnut Creek, California. Aliquot brings decades of expertise across diverse project types including public roadways and highways, transit facilities, residential subdivisions, commercial and mixed-use sites, water and sewer systems, stormwater management, and park improvements. With extensive agency-side experience and strong local knowledge across multiple Bay Area jurisdictions, the team provides responsive, customized service from initial planning and feasibility studies through design, permitting, construction, and inspection. Every project is managed directly by a principal, enabling quick decision-making and close coordination with property owners, architects, contractors, and agency representatives.
Project: Oakland Army Base Redevelopment
Serving California & Nevada for over 31 years
Project: Avenue K Overpass

Arrow Infrastructure Solutions Inc., doing business as Arrow Engineering Corp., is a civil engineering and geotechnical firm based in Lancaster, California, that has served public agencies and private firms in California and Nevada since 1978. Its work spans land development, land planning, transportation, and public works for both public and private sector clients. Arrow Engineering's three practice divisions cover civil engineering design, geotechnical and soils engineering, and GIS mapping, and it emphasizes cost-effective products delivered on client-defined schedules.
Service detail: Civil Engineering

Auriga Corporation is a privately held engineering consulting firm established in 1990 and headquartered in Milpitas, California. For over 30 years Auriga has served rail and transit agencies, municipal utilities, the United States federal government, state and local governments, and international organizations across project management, electrical engineering, systems engineering, fare and payment collection, and information technology. Its ISO 9001-compliant project managers and consultants average more than 20 years of experience in their respective disciplines.
Project: SFMTA Twin Peaks Tunnel Trackway Improvement Project - Cost and Schedule
Empowering Precision with Authority
Service detail: Land Development