Stericycle is not necessarily a household name, but it does critical work — helping medical providers such as hospitals and other organizations dispose of their sensitive or highly-regulated waste products. It’s also a $3.5 billion publicly traded firm, where Nickolas works as senior vice president. She joined the company after it acquired her former employer, Shred-It. Nickolas not only helped facilitate a smooth transition but continued to oversee the Shred-It brand’s national accounts team in addition to taking on leadership of the parent company’s healthcare compliance solutions accounts. She also was a founding member of Foodbuy.com, a startup worth $10 billion.