Cossie Lewis

Senior Producer at The Diary Of A CEO, where I’ve spent three years since graduating from Exeter with a History degree. In that time I’ve had three promotions, developing deep expertise in editorial research, guest strategy and format development, including introducing the debate series format that regularly drives over a million views in 24 hours. Prior to this I was a competitive sailor representing UK at World and European championships for 7 years.

Senior Producer at The Diary Of A CEO (2026-02 – Present)

• Own end-to-end pre-production for the twice-weekly release of the show, including guest research and selection, editorial direction, production development, scheduling, legal negotiation, and PR/media relationships.
• Directly manage the Guest Strategy team and oversee coordination across departments and with freelance teams, ensuring handovers between London, NY and LA.
• Lead AI integration across the department, including development of proprietary tools.

Senior Guest Strategist at The Diary Of A CEO (2025-04 – 2026-02)

• Directed overall guest strategy, and selection, elevated the editorial direction for each episode, managed relationships with guests, agents and publicists and worked in the production team for shoots in London, LA and NY.
• Built the guest strategy framework adopted as a blueprint across 4 Flight Story shows
• Developed and introduced the debate series format, expanding the show's editorial range.

Guest Production Executive at The Diary Of A CEO (2024-04 – 2025-04)

• Led guest research using performance analytics and cultural trend analysis to surface high-value guests ahead of the curve, identifying the most resonant topics and pairing them with the strongest voices, with all format concepts and editorial research pitched to Steven Bartlett.
• Introduced documentary-style storytelling, sourcing B-roll, and conducting supporting interviews

Junior Guest Booker at The Diary Of A CEO (2023-09 – 2024-04)

• Developed core production skills across research, talent management, and agency relations, while contributing new format ideas from the outset.

First Mate at Sunsail Sailing (2023-01 – 2023-08)

• Partaking in competitive yacht racing whilst hosting and engaging with corporate clients on board

RYA Senior Sailing Instructor at Bosham Sailing Club (2021-06 – 2023-08)

• Managing a team of instructors. Ensuring the safety and safeguarding of both our students and staff.
• Coaching racing skills and the fundamentals of fast sailing to children aged between 8 and 16.

BA in History – University of Exeter (2023)

40 points (7,7,6 at Higiher) in International Baccalaureate – Sevenoaks School