Mark Stefan: Email & Phone Number

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Retired at Freelance|Gaithersburg, Maryland, United States

Position:

Retired at Freelance

Location:

Gaithersburg, Maryland, United States

View Mark Stefan's Email

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Last updated: 2026-07-23

Updated: 2026-07-23

Found email addresses for Mark Stefan:

Business emails:

m**********1@texasag.com,

s*****m@gao.gov

Personal emails:

m*****n@rcn.com,

m******2@comcast.net,

m**********1@yahoo.com

Found phones for Mark Stefan:

+1-205-***-**34,

+1-909-***-**16,

+1-205-***-**08,

+1-323-***-**08

A different Mark Stefan?

Work Experience 19 years

Retired at Freelance

May 2024 - Current

Chief Enterprise Architect at U.S. Government Accountability Office (GAO)

Jan 2007 - May 2024

Mark Stefan started working in 2007, then the employee has changed 1 company and 1 job. On average, Mark Stefan works for one company for 9 years 10 months.

Their professional focus is analysis, Business Process Improvement, and Change Management across 3 core areas.

Education

University of Maryland College Park

Frequently Asked Questions

What is Mark Stefan's email address?

SignalHire found verified email addresses for Mark Stefan, both business and personal. Their business email is m**********1@texasag.com, and personal emails include m*****n@rcn.com, m******2@comcast.net, and m**********1@yahoo.com.

What is Mark Stefan's phone number?

SignalHire found multiple verified phone numbers for Mark Stefan: +1-205-***-**34, +1-909-***-**16, and +1-205-***-**08.

How do I contact Mark Stefan at Freelance?

You can reach Mark Stefan 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 Stefan's professional background?

Mark Stefan has 19 years of professional experience. They have held roles including Chief Enterprise Architect at companies such as U.S. Government Accountability Office (GAO). Their education includes University of Maryland College Park.

Is Mark Stefan's contact information up to date?

Yes. Mark Stefan's SignalHire profile was last updated on 23 July 2026, reflecting their current position as Retired at Freelance.

Mark Stefan Namesakes

Name

Company

Position

Mark Stefan

City Center Realty Partners, LLC

President

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