Triunity, Inc. – Big Company Talent. Small Company Spirit. For nearly 15 years, the professionals at Triunity, Inc. (Triunity ... ) have delivered best-in-class Program/Project Management, Engineering, and Construction Management services in transportation, water/wastewater, and aviation markets. We take pride in providing big company expertise with small company responsiveness and innovation and excel in delivering on-time project completion and quality services for our public and private entity clients. Our portfolio includes major projects for the Denver Regional Transportation District (RTD), City and County of Denver (CCD), Denver International Airport (DEN), LA Metro, Washington Metropolitan Area Transit Authority (WMATA), Denver Water District, WSDOT, City of Seattle, Seattle’s Sound Transit, Honolulu Authority for Rapid Transportation (HART), Valley Metro in Phoenix, Massachusetts Bay Transit Authority (MBTA), the Metropolitan Transportation Authority (MTA) of New York and New Jersey, Niagara Frontier Transportation, Virginia’s Hampton Roads Transit, and the Washington Metropolitan Area Transit Authority (WMATA). While we perform work across the United States, Triunity is headquartered in Denver, CO and has regional offices in Boston, MA; Seattle, WA; and Los Angeles, CA. Triunity is a Service-Disabled Veteran-Owned Small Business (SDVOSB) and is certified DBE/MBE/SBE/ESB in several states. read more