Mark Callahan vs Opto Custom GP 2023 LLC

Mark Callahan vs Opto Custom GP 2023 LLC compared for founders deciding who to pitch. Stage focus, check size, and sector fit compared side by side.

Mark Callahan vs Opto Custom GP 2023 LLC

Mark Callahan is a individual/angel based in New York. Opto Custom GP 2023 LLC is a private equity based in New York across 2,600 portfolio companies.

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