Diana Mancuso

Diana Mancuso leads specialty products at O’Neil with a focus on precision, sourcing, and execution. She helps clients find the right product, at the right quality, at the right cost, without adding complexity to the process.

With more than 12 years in the promotional products industry and over 40 years of experience across print, Diana brings deep operational knowledge and a strong understanding of how products perform in the real world. She knows what works, what doesn’t, and how to get it right the first time.

Diana is known for her ability to take a need and quickly turn it into a clear, executable solution. Whether supporting a one-time initiative or an ongoing program, she focuses on accuracy, efficiency, and follow-through.

Her long-standing relationships with domestic and international vendors give clients access to reliable options, consistent quality, and competitive pricing. She removes friction from the process so teams can move forward with confidence.

Today, Diana works across the O’Neil platform to ensure specialty products integrate seamlessly into broader print, packaging, and fulfillment efforts.

Diana believes great work is built on trust, responsiveness, and delivering what was promised. Outside of work, she values time with her family and the perspective it brings to how she shows up every day.