Our Projects


We enjoy collaborating with transit agencies of all sizes across the country. Below is a selection of the agencies we have worked with and the projects we have worked on. To see more specific lists of clients and projects by area of expertise, please use the “Our Projects” header above to navigate to the appropriate list.

Map of all Four Nines project locations
Bi-State Development Agency

Budgeting System Procurement

Fare Policy Study & Fare Modeling

Gateway Fare System Procurement & Implementation

Transit Asset Management System Procurement

Foothill Transit

Fare Restructuring Study

Lawrence Berkeley National Laboratory

Financial, Payroll, and Asset Management Systems Modernization Project

Greater Portland Metro

Consulting Services for Automated Fare Collection System


Ridership Data Architecture

State Road and Tollway Authority of Georgia

Enterprise Asset Management System Procurement

Valley Regional Transit in Boise, Idaho

Regional Fare Policy Study

Transit Asset Management Procurement & Implementation (sub)

Community Transit

Budget Business Process Planning

IT Strategy

Golden Gate Bridge Highway Transportation and District

Project Management Support for Maximo Implementation

Real Time Data Feed Development

Ridership Data Integration

Madison County Transit

Fare System Strategy

Mobile Ticketing System Procurement & Implementation

Technical Support and Integration with Regional Fare Collection


OC Bus Mobile Ticketing System Procurement

Ann Arbor's The Ride

Fare Study

Santa Clara Valley Transportation Authority

Fare Review

VIA Metropolitan Transit

Business Process Review and ERP & EAM Selection & Procurement

ERP & EAM Implementation Oversight

Capital Metro in Austin, Texas

Fare Collection Consulting Services

EMBARK in Oklahoma, City

Fare Policy & Fare Structure Evaluation

Mobile Ticketing Procurement & Implementation Support

Kitsap Transit

Reservation System Consulting

Metra in Chicago

Fare Study

North County Transit District

Fare Collection Strategy Development

RTD in Denver

Pass Program Study

Sound Transit

Business Consulting Services for the Research & Technology Program

Regional Fare System Strategic Plan

ORCA Fare System Procurement & Implementation


hop Electronic Fare Collection Procurement (sub)

Internet of Things (sub)

Low Income Fare Research Study

Virtual Reality Training System Procurement (sub)