Guillermo Segura is the Managing Partner of Cornerstone Panama. As a consultant, he mainly focuses on Board, CEO, General and Commercial management assignments.

Previous Experience

Guillermo is a transformational leader, with extensive accomplishments as CEO, General Manager, Commercial and Sales Capability Director in top multinational companies like P&G and in expanding Latin American companies. He is an expert in developing talent & high-performance teams, having coached and mentored +100 talents and future leaders over his career.

At P&G, Guillermo was a Certified Top Performers Key Success Drivers Trainer across Latin America, leading companies through crisis or heavy transformation periods, leveraging strong marketing, sales & finance fundamentals. He has a deep understanding of the consumer  market, with experience in over 20 CPG categories and the automotive retail sector. He is considered an expert in maximizing commercial capability growth and digital transformation.

Guillermo has experience managing business in 15 countries in Latin America & USA, having worked and lived in Mexico, Guatemala, Panama and Dominican Republic.

Additional Professional Activities

Guillermo has also served as a board member in several business chambers in his country, Guatemala, and has been
invited as a speaker or panel member to share his experience in areas like business strategy, sales capability development and commercial strategy.


Guillermo is a Chemical Engineer from Universidad de San Carlos de Guatemala, and holds an MBA from Universidad Católica de Chile, a Top 5 MBA program in Latin America.