John Callahan Email & Phone Number

Strategic Growth Officer @ GDSI

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John Callahan Location

Miami, FL, US

John Callahan Work

2026 - now Executive Director | Board Member @ PentAlpha Global
2025 - now Strategic Growth Officer @ GDSI
2024 - now VMS Mentor @ RIHub

2023 - now Strategic Growth Advisor, Mentor, Coach, Guest Speaker @ Various Start-ups & Scale-Ups
2023 - now Board Member | Advisor @ PentAlpha Global
2025 - now GTM Advisor @ Nexl
2024 - 2025 Chief Marketing Officer @ xpens.ai
2024 - 2025 Vice President, Legal Sales @ Hercules
2021 - 2023 Planned Family Sabbatical @ Proper Headspace
2019 - 2021 Vice President, Global Head of Finance Practice @ Intapp

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John Callahan Education

Vista Equity Partners
Vista Equity Partners High Potential Leadership Program
2011 - 2012
University of Michigan
MSEng (NAME, Engineering)
1990 - 1991
University of Michigan
BSEng (NAME, Engineering)
1986 - 1991

John Callahan Skills

Product Management
Enterprise Software
Solution Selling

Professional Services
Strategy
Start-ups
Business Development
Salesforce.com
SaaS
Strategic Partnerships

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John Callahan Summary

John Callahan, based in Miami, FL, US, is currently a Strategic Growth Officer at GDSI. John Callahan brings experience from previous roles at PentAlpha Global, RIHub and Various Start-ups & Scale-Ups. John Callahan holds a 2011 - 2012 Vista Equity Partners High Potential Leadership Program @ Vista Equity Partners. With a robust skill set that includes Product Management, Enterprise Software, Solution Selling, Professional Services, Strategy and more. John Callahan has 5 emails and 4 mobile phone numbers on RocketReach.

John Callahan Emails

Found 5 emails

John Callahan Phone Numbers

Found 6 phone numbers

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Others Named John Callahan

John Callahan

Senior Vice President at HUB International

Chicago, IL, US
1
- hubinternational.com
2
- +1 617-909-XXXX
- +1 630-285-XXXX
John Callahan

Chief Technology Officer, Aerospace and Defense at IFS

Canada
2
- hotmail.com
- ifsworld.com
1
- +1 814-720-XXXX
John Callahan

Chief Technology Officer at Veridium

New York, NY, US
3
- veridiumid.com
- gmail.com
- jhuapl.edu
5+
- +1 605-208-XXXX
- +1 415-684-XXXX
- +1 985-614-XXXX
- +1 410-925-XXXX
- +1 203-344-XXXX
- +1 410-772-XXXX

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Top GDSI Employees

Edward Pattison

Director of Software Development at GDSI

Hawthorne, NJ, US
1
- gdsi.com
Kevin Fuhrman

Software Engineer at GDSI

DeBary, FL, US
1
- gdsi.com
4
- +1 302-651-XXXX
- +1 225-357-XXXX
- +1 631-949-XXXX
- +1 516-369-XXXX

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