◼ sine qua non: (noun) something considered absolutely essential. SQN Associates, LLC (SQN) is a woman- and minority-owned company recognized as a leader in providing Construction Management, Program & Project Management, and Project Controls services to public and private clients in markets that include Aviation, Buildings & Facilities, Rail, Transit, Transportation, and Utilities. Our mission is to be “absolutely essential” to the success of our clients, partners, employees, and community. Central to this mission is our commitment to a culture of excellence rooted in fostering reliable support and mutual respect for those we work with. We manage the entire program and construction process for clients and provide comprehensive reporting on all facets, with services that include planning, coordination, cost/scheduling control, construction oversight, and commissioning. Our team applies their knowledge and experience in engineering and construction to the everyday challenges that occur throughout the construction process. Certifications: ◼ Disadvantaged Business Enterprise (DBE) – IL, IN, GA, MA, UT, WI ◼ Minority Business Enterprise (MBE) ◼ Women’s Business Enterprise (WBE) ◼ Women-Owned Small Business (WOSB)