Mark Geraldi: Email & Phone Number

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Executive Leadership Coach at VALIANT GLOBAL DEFENSE SERVICES INC.|Houston, Texas, United States

Position:

Executive Leadership Coach at VALIANT GLOBAL DEFENSE SERVICES INC.

Location:

Houston, Texas, United States

View Mark Geraldi's Email

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Last updated: 2026-06-20

Updated: 2026-06-20

Found email addresses for Mark Geraldi:

Business emails:

g********************i@gmail.com

Personal emails:

m***@aol.com,

g***@gmail.com,

m***@yahoo.com,

g***@hotmail.com

Found phones for Mark Geraldi:

+1-870-***-**80,

+1-623-***-**55

A different Mark Geraldi?

Work Experience 14 years

Executive Leadership Coach at VALIANT GLOBAL DEFENSE SERVICES INC.

May 2023 - Current

Management and Leadership Adjunct Professor at University of Houston, C.T. Bauer College of Business

Dec 2022 - Jun 2024

Director of Training at US Army Forces Command

Jul 2021 - Jul 2022

Commander at Expeditionary District, US Army Corps of Engineers

Jul 2020 - Jun 2021

Commander at Seattle District, US Army Corps of Engineers

Jul 2017 - Jun 2020

Visiting Fellow at The Fletcher School at Tufts University

Jul 2015 - Jul 2016

Battalion Commander at 8th Engineer Battalion

Feb 2012 - Apr 2014

Mark Geraldi started working in 2012, then the employee has changed 6 companies and 5 jobs. On average, Mark Geraldi works for one company for 1 year 10 months.

Their professional focus is Business Analysis, Business Strategy, and Change Management across 3 core areas.

Education

Center for Creative Leadership

Master of Science - MS at Missouri University of Science and Technology

Bachelor of Science - BS at Rensselaer Polytechnic Institute

Frequently Asked Questions

What is Mark Geraldi's email address?

SignalHire found verified email addresses for Mark Geraldi, both business and personal. Their business email is g********************i@gmail.com, and personal emails include m***@aol.com, g***@gmail.com, and m***@yahoo.com.

What is Mark Geraldi's phone number?

SignalHire found multiple verified phone numbers for Mark Geraldi: +1-870-***-**80, and +1-623-***-**55.

How do I contact Mark Geraldi at VALIANT GLOBAL DEFENSE SERVICES INC.?

You can reach Mark Geraldi through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Mark Geraldi's professional background?

Mark Geraldi has 14 years of professional experience. They have held roles including Management and Leadership Adjunct Professor, Director of Training, and Commander at companies such as University of Houston, C.T. Bauer College of Business, US Army Forces Command, and Expeditionary District, US Army Corps of Engineers. Their education includes Center for Creative Leadership, and Master of Science - MS from Missouri University of Science and Technology.

Is Mark Geraldi's contact information up to date?

Yes. Mark Geraldi's SignalHire profile was last updated on 20 June 2026, reflecting their current position as Executive Leadership Coach at VALIANT GLOBAL DEFENSE SERVICES INC. in San Diego, California, United States.

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