John Callahan

Japan

• Active 1h ago

Bio: Investor | M&A | Consultant | Digital Marketer

• Active 37m ago

Bio: An award-winning serial entrepreneur who talks about the intersection of small business & investing.

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@john-callahan-7013

A highly strategic and entrepreneurially minded member of the C-suite, recognized for efficiently identifying high yield market opportunities.

Active 1d ago

Joined Nov 6, 2024

Newport, RI