Startups, Sharks & Sustainability: Mark Tozer on Business & Conservation

In this episode of Your Number Man, host Johan sits down with the unstoppable Mark Tozer — a Businessman, Ocean Explorer, and passionate Conservation Advocate. With a career that spans boardrooms, underwater dive sites, and nonprofit initiatives, Mark shares a powerful perspective on blending business success with meaningful impact.

We explore how Mark manages multiple ventures, the role of purpose in entrepreneurship, and what sharks can teach us about leadership and resilience. From high-level strategy to deep-sea adventures, this episode is all about finding your mission and backing it with action.

Topics Covered:

• The balance between profit and purpose in modern business
• What entrepreneurship and ocean exploration have in common
• Building and leading mission-driven businesses
• The story behind Dive for Cancer and other conservation efforts
• How sustainability can future-proof your business

Guest Bio:

Mark Tozer is the Managing Director and owner of two businesses: Maprak, a commercial furniture manufacturing company, and Mile End Office Furniture. Beyond his commercial ventures, Mark is deeply committed to marine conservation.

He is:

• A business partner at Rodney Fox Great White Shark Expeditions
• The Founder and Director at Rodney Fox and Mark Tozer’s Marine Conservation and Research Centre
• A Director and Treasurer at Sharks and Rays Australia
• The Founder of Dive for Cancer, a national charity event that combines scuba diving with cancer fundraising

With over 5,000 dives since 1987 and 25+ scuba certifications, Mark’s unique journey connects business leadership with environmental advocacy in powerful ways.

Links & Resources:

• Rodney Fox Shark Expeditions
• Mark Tozer’s Profile
• Dive for Cancer

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