Michael Callahan vs John Herr

Michael Callahan vs John Herr

Michael Callahan is a individual/angel based in Mountain View, CA, United States. John Herr is a private equity based in San Francisco across 450 portfolio companies. Sector focus diverges: Michael Callahan concentrates on Robotics and SaaS and John Herr on Cybersecurity, Fintech and Healthcare.

• Investor type: Michael Callahan — Individual/Angel; John Herr — Private Equity
• Headquarters: Michael Callahan — Mountain View, CA, United States; John Herr — San Francisco
• Portfolio companies: Michael Callahan — not disclosed; John Herr — 450
• Sectors: Michael Callahan — Robotics, SaaS; John Herr — Cybersecurity, Fintech, Healthcare

• Michael Callahan — Individual/Angel · Mountain View, CA, United States · Michael Callahan portfolio
• John Herr — Private Equity · SAN FRANCISCO · 450 tracked deals · John Herr portfolio

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