Sarah Keller

Sarah is a telco expert with over 25 years of experience under her belt. She joined GMS in 2015 and swiftly rose through the ranks to become its International Business Development Director in 2018. She later took on the position of Strategic Account Director, giving a powerful boost to our global expansion. In 2020, Sarah was recognised among the top 100 most influential people in the telecom industry by ROCCO Research.