Jonathan helps founders and executive teams build custom marketing strategies, lead internal teams, and manage agencies, all without the overhead of a full-time CMO. With over 15 years of experience spanning startups to multi-billion-dollar enterprises, Jonathan has driven results across the funnel and managed annual ad budgets up to $50 million.

One client said it best: “Jonathan Lo made an immediate impact as our fractional CMO. From a sales perspective, his work directly influenced pipeline growth and lead quality. He brought clarity and focus to our marketing strategy, introduced structure where we needed it most, and helped us start thinking like a high-performing marketing team.”

Jonathan has earned a master’s degree in management from Harvard University and certifications from the McKinsey Management Program. Former employers include World Vision and Overstock. Clients include Dwellify, Krosswood Doors, MERGE4 Socks, and Annieglass. 

In Jonathan’s free time, he is a teaching assistant for graduate-level courses at Harvard and advises startups in the artificial intelligence, health technology, and consumer luxury goods spaces.