Mark Drenka: Email & Phone Number

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Global Tax Technology - Senior Manager at Grant Thornton (US)|Greater Seattle Area, United States

Position:

Global Tax Technology - Senior Manager at Grant Thornton (US)

Location:

Greater Seattle Area, United States

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Last updated: 2026-06-30

Updated: 2026-06-30

Found email addresses for Mark Drenka:

Business emails:

m*****a@grantthornton.com,

a*******f@dwhomes.com,

a*******f@hobbs-black.com

Personal emails:

m*********a@gmail.com

Found phones for Mark Drenka:

+1-870-***-**91,

+1-623-***-**43,

+1-480-***-**55

A different Mark Drenka?

Work Experience 17 years

Global Tax Technology - Senior Manager at Grant Thornton (US)

Aug 2019 - Current

Global Compliance & Reporting - Manager at Grant Thornton (US)

Aug 2015 - Jul 2019

Global Compliance & Reporting - Senior Associate at Grant Thornton (US)

Aug 2013 - Jul 2015

National Tax Strategic Solutions - Associate at Grant Thornton (US)

Jan 2012 - Jul 2013

Tax Intern at Grant Thornton (US)

Jun 2009 - Dec 2011

Mark Drenka started working in 2009, then the employee has changed 4 jobs. On average, Mark Drenka works for one company for 3 years 4 months.

Their professional focus is Artificial Intelligence (AI), Digital Transformation, and Management Consulting across 3 core areas.

Mark holds Copilot Studio Agent Academy - Recruit, Microsoft Certified: Azure AI Fundamentals, and Six Sigma Green Belt (CSSGB) certifications.

Education

Master's degree at University of North Texas

Bachelor of Science - BS at Northern Arizona University

Frequently Asked Questions

What is Mark Drenka's email address?

SignalHire found verified email addresses for Mark Drenka, both business and personal. Their business email is m*****a@grantthornton.com, and personal emails include m*********a@gmail.com.

What is Mark Drenka's phone number?

SignalHire found multiple verified phone numbers for Mark Drenka: +1-870-***-**91, +1-623-***-**43, and +1-480-***-**55.

How do I contact Mark Drenka at Grant Thornton (US)?

You can reach Mark Drenka 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 Drenka's professional background?

Mark Drenka has 17 years of professional experience. They have held roles including Global Compliance & Reporting - Manager, Global Compliance & Reporting - Senior Associate, and National Tax Strategic Solutions - Associate at companies such as Grant Thornton (US), Grant Thornton (US), and Grant Thornton (US). Their education includes Master's degree from University of North Texas, and Bachelor of Science - BS from Northern Arizona University.

Is Mark Drenka's contact information up to date?

Yes. Mark Drenka's SignalHire profile was last updated on 30 June 2026, reflecting their current position as Global Tax Technology - Senior Manager at Grant Thornton (US) in Chicago, IL, United States.

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