Our Staff
Terri Arnold-McKenzie, MBA
Interim President & CEO
Terri Arnold-McKenzie, M.S., MBA, is a dynamic leader, strategist, and community builder whose career is rooted in service, loyalty and faith. With over two decades of experience in program development, operations management, and workforce initiatives, Terri brings a wealth of expertise to the Urban League of Long Island as its Interim President & CEO.
Her career spans leadership roles in corporate affairs, higher education, clean energy, and community development, including designing and implementing workforce development pipelines, supporting entrepreneurs through capacity-building programs, and advancing supplier diversity efforts. From onboarding more than 80 MWBEs and SDVOBs into multimillion-dollar contracts with the MTA, to leading the flagship Grid Collective program at National Grid, Terri has consistently delivered innovative solutions that expand opportunity and build equity.
Terri is also the President & CEO of TAM Business Consulting, LLC, where she has partnered with government entities, corporations, and nonprofits to develop strategies that strengthen diversity, equity, and inclusion across industries. She has held senior program management positions at Hofstra University, National Grid, and the U.S. Tennis Association, where she built bridges between organizations and underrepresented communities.
A proud lifetime member of Delta Sigma Theta Sorority, Inc., Terri wears her red with pride, continuing a strong legacy of sisterhood, scholarship and service. She is equally grounded by her firm foundation in God, which guides her leadership, integrity, and passion for uplifting others.
Terri describes her work at the Urban League as “Our mission is rooted in the belief that when we invest in people, we transform communities. Together, we are creating access, advancing equity, and opening doors that lead to generational change.”
Whether advancing workforce development, entrepreneurship, or clean energy innovation, Terri brings her loyalty, resources, and knowledge to strengthen the Urban League’s mission of economic empowerment and equity.
“Opportunity should never be determined by zip code, background, or circumstance. At the Urban League of Long Island, we are building pathways where equity leads, talent rises, and every community has the power to thrive.”
– Terri Arnold-McKenzie
Justin Williams
Foundations, Grants Management & Development Strategic Implementation
Justin Williams serves as the lead for Foundations, Grants Management & Development Strategic Implementation at the Urban League of Long Island, where he drives the organization’s philanthropic strategy, resource development, and long-term funding growth. A mission-focused strategist, Justin brings deep expertise in grant acquisition, donor engagement, and program development to advance the Urban League’s work across economic empowerment, education, community transformation, and workforce development.
With a strong background in higher education leadership and youth advancement, Justin has managed major state and federal grant initiatives, led multi-site college readiness programs, and overseen STEM-access projects for historically underserved students. His previous roles include Director of NYGEAR UP, Associate Director of the STEP Program at Nassau Community College, and Grant Manager & College/Career Readiness Instructor at Hempstead High School. In each position, he strengthened partnerships, implemented evidence-based strategies, and delivered measurable outcomes for students and families.
As founder of Policy Titans, Justin has also advised nonprofits nationwide on grant strategy, organizational development, and equity-centered program design—helping mission-driven organizations secure the funding needed to grow and innovate.
Justin’s academic journey includes studies in Comparative Religion at Princeton University, a bachelor’s degree magna cum laude from Rider University, and graduate studies in Political Science at Rutgers University. He is also the author of Reborn: The Virtues Constellation, a creative work that blends mythology, mental health themes, and personal storytelling to inspire readers on their own journeys of resilience and transformation.
Passionate, strategic, and community-driven, Justin Williams plays a vital role in strengthening the Urban League of Long Island’s capacity, expanding its reach, and securing the resources needed to uplift communities across Long Island.
“Success is not just measured in effort, but persistent performance. Stay humble, focused and always look toward tomorrow!”
– Justin Williams