Fiber internet company Lux Speed promotes Stephanie Pittman to director-project management ... Harvest Group, connected commerce solutions provider and retail broker for Amazon, Costco, Kroger, Sam's Club, Target and Walmart, names GE Lighting’s Sejal Sheth vice president-digital commerce and media ... RiskOptics, cyber risk management company, names Chief Strategy Officer Rob Ellis acting CEO, replacing former CEO-Chief Product Officer Michael Maggio ... Cybersecurity company Cyemptive Technologies names retired Air Force Lt. Col. Jason Huff chief operating officer-security operations ... Thryv Holdings, small business management software provider, promotes Chief Customer Officer Grant Freeman to president, newly created role ... Global media agency Assembly names GroupM’s Greg Shickle its first chief activation officer, Europe.