High Street Consulting Group is a leading provider of management and financial consulting services to the people who plan, build, and operate America's transportation systems. We are dedicated to equipping transportation leaders and their staff with accurate, objective, and valuable analysis and advice that ensures they can make the best possible investments in transportation today and for the future. We are an employee-owned firm of experienced consulting professionals, headquartered in the metropolitan Washington, DC region with additional offices in Denver, CO and Pittsburgh, PA. Learn more About Our Firm or Our Clients.