What began as a small firm with just two employees has grown into one of the largest U.S.-based private operators of passenger rail services, carrying over 35 million passengers on 200,000 train trips annually. I would like to thank our clients for their partnership and business - I am grateful to you for choosing ACI as your service provider and for your partnership in achieving the highest levels of service quality, safety and customer satisfaction. I look forward to our relationships growing and to providing transit services that benefit both the communities and customers that we serve.

ACI's achievements reflect the combined efforts of its employees, and I would like to thank them for their dedication and contributions to our success.

- Jim O'Leary, President, ACI

Transit Management Solutions for the 21^st Century

Unmatched experience. Hands on management. Practical solutions.

Alternate Concepts, Inc (ACI) provides safe, dependable, and efficient mass transit operations & maintenance services to public and private clients across the United States.

ACI brings unparalleled industry experience, multi-modal expertise and strong management commitment to every commuter rail, heavy rail, light rail and bus system it operates and maintains.

Practical Solutions

The founders and many of ACI’s senior associates spent decades (collectively) at the helm of America’s oldest and fifth largest transit system. They understand the pressures and constraints of public agency transit management... More »

Hands On Management

Whether it is inventory management, crew scheduling, fare collection or systems maintenance, ACI applies the same management focus and commitment to excellence in all of our world-class operations... More »

Public and Private Experience

Our unique experience in both the public and private sectors as well as with non-traditional project delivery methods (DBOM and DBFOM) makes ACI a growing leader in the provision of mass transit services financed through public-private partnership (P3)... More »