John Hallmark – Biography
Last update: January 23, 2026Executive profile
John was President for Osprey Line LLC. John Hallmark joined Kirby in 2016. John served as Vice President, Strategic Planning and Sales at Kirby.
John Hallmark is currentlyExecutive Vice President at Kirby Ocean Transport - View - Kirby Ocean Transport org chart
Executive Vice President, Sales and Strategy at Kirby Offshore Marine - View - Kirby Offshore Marine org chart
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Education
In 2003, John Hallmark completed a Master of Business Administration in Management and Finance at University of Houston, C.T. Bauer College of Business.
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The colleagues of John Hallmark
Company Colleagues
- At Kirby Ocean Transport, John Hallmark has 3 colleagues including Christian O'Neil (President), Bill Withers (Vice President)…
- At Kirby Offshore Marine, John Hallmark has 13 colleagues including Christian O'Neil (President), Robert Sullivan (Director)…
Industry Colleagues
- In the Maritime industry, John Hallmark has 8,356 colleagues in 688 companies located in 94 countries. 3,411 executive movements have been recorded in the last 12 months. Learn more about Maritime.
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