Apostolos Kallis is the Chief Commercial Officer and Board Member of ETIYA, a leading independent software company specializing in AI-driven digital transformation products. In his role, Apostolos oversees global sales, business development, presales, and partner channels, driving ETIYA’s growth across three continents. Since joining ETIYA, Apostolos has helped grow the company’s revenue sixfold and secure strategic investments through a successful capital raise initiative.

With over 20 years of experience in software and services sales in the telecom, media, and cloud sectors, Apostolos brings expertise in expanding market share and building long-term partnerships. Prior to ETIYA, Apostolos was part of TM Forum’s Senior Leadership team, where he helped grow the organization into one of the world’s leading digital transformation trade associations, with 1,000 companies across 100+ countries.

In addition to his corporate roles, Apostolos runs Sales Explorers, a consulting practice where he advises startups and mature companies on international expansion, partnerships, and growth strategies. Apostolos’s mission at ETIYA is to drive revenue growth and deliver innovative, award-winning solutions to clients in EMEA, Asia, and the Americas. He earned his BA in International Business and Economics from the University of Brighton and an MBA in Telecoms from Athens University of Economics and Business.