Tessa Calleb

Tessa Calleb has over 17 years of experience in various marketing and leadership roles. Currently, they are the Marketing Director at Gearbox, where they oversee marketing campaigns and communication strategies. In their previous role as Head of Marketing and Enrollment at One Acre Fund, they developed short and long-term marketing strategies and led a team responsible for training and educational content. Tessa also has experience as a Director at Ladybird Advertising, where they contributed to brand strategies and drove business development. Additionally, they have held positions as a Regional Client Service Director at Exp Agency, Marketing Manager at Qualcomm, Marketing Manager at Samsung Electronics, and Regional Head of Sales and Client Service at A1 OUTDOOR. In these roles, Tessa excelled in developing and executing marketing campaigns, establishing relationships with clients and stakeholders, and driving sales growth.

Tessa Calleb has a BA in Management from Birkbeck, University of London. Tessa also attended Hendon College until 1995.