Michael Hennessee

Michael Hennessee: Email & Phone Number

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System Administrator at OCCH|Columbus, Ohio, United States

Position:

System Administrator at OCCH

Location:

Columbus, Ohio, United States

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Last updated: 2026-05-25
Updated: 2026-05-25

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Work Experience 15 years

System Administrator at OCCH

Oct 2015 - Current

Tier III Application Support at Ashland Chemicals

May 2013 - May 2015

IT Service Desk Analyst at Nationwide

Aug 2012 - May 2013

Tier II/III Internal Help Desk at TP

Jun 2011 - May 2012

Michael Hennessee started working in 2011, then the employee has changed 3 companies and 3 jobs. On average, Michael Hennessee works for one company for 3 years 7 months.

Their professional focus is Active Directory, Application Support, and KnowBe4 across 3 core areas.

Michael holds Microsoft 365 Certified: Fundamentals and Microsoft 365 Certified: Teams Administrator Associate certifications.

Education

High School Diploma at Hamilton Township High School

Frequently Asked Questions

What is Michael Hennessee's email address?

SignalHire found a verified business email address for Michael Hennessee: h*******l@occh.org.

What is Michael Hennessee's phone number?

SignalHire found a verified phone number for Michael Hennessee: +1-***-***-5493.

How do I contact Michael Hennessee at OCCH?

You can reach Michael Hennessee 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 Michael Hennessee's professional background?

Michael Hennessee has 15 years of professional experience. They have held roles including Tier III Application Support, IT Service Desk Analyst, and Tier II/III Internal Help Desk at companies such as Ashland Chemicals, Nationwide, and TP. Their education includes High School Diploma from Hamilton Township High School.

Is Michael Hennessee's contact information up to date?

Yes. Michael Hennessee's SignalHire profile was last updated on 25 May 2026, reflecting their current position as System Administrator at OCCH in Columbus, Ohio, United States.

Michael Hennessee Namesakes

Name
Company
Position
Michael
Security Engineer III
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Michael
Information Technology Internal Auditor
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Michael
VP, Business Banking Relationship Manager
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