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Marcus Oh Email & Phone Number

Associate Director at EY at EY

Location: Alpharetta, Georgia, United States 1 work role

1 work email found @ey.com 2 phones found area 404 and 207 LinkedIn matched

✓ Verified May 2026 4 data sources Profile completeness 86%

Current company

EY

Role

Associate Director at EY

Location

Alpharetta, Georgia, United States

Company size

296502 employees

Who is Marcus Oh? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

Marcus Oh is listed as Associate Director at EY at EY, a company with 296502 employees, based in Alpharetta, Georgia, United States. AeroLeads shows a work email signal at ey.com, phone signal with area code 404, 207, and a matched LinkedIn profile for Marcus Oh.

Marcus Oh previously worked as Directory Services Global Lead, Associate Director at Ey.

Company email context

Email format at EY

This section adds company-level context without repeating Marcus Oh's masked contact details.

{first}.{last}@ey.com

89% confidence

AeroLeads found 1 current-domain work email signal for Marcus Oh. Compare company email patterns before reaching out.

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Profile bio

About Marcus Oh

Providing technical and strategic leadership to identity teams in information security. Past life was as a highly specialized administrator with substantial experience in systems management disciplines. High proficiency in scripting. Understands directory services very well. Former systems management MVP for 11 years.

Listed skills include Active Directory, Microsoft Technologies, Sccm, It Operations, and 45 others.

Current workplace

Marcus Oh's current company

Company context helps verify the profile and gives searchers a useful next step.

Ey

Associate Director at EY

london, greater london, united kingdom

Website

ey.com

Employees

296502

AeroLeads page

Company profile

View company profile Email format

1 role

Marcus Oh work experience

A career timeline built from the work history available for this profile.

Directory Services Global Lead, Associate Director

Ey

Oct 2015 - Present - Alpharetta

Leading multiple information security identity teams which engineer and implement solutions for the operation and delivery of directory services as well as all Tier 0 ancillary systems required to run those services for an enterprise-scale, cloud-enabled, global implementation servicing a 400K+ user base.- Institutionalized best practices for execution procedures, technical peer reviews, and monthly operational reviews- Modernized recovery platforms and DR strategies- Rationalized configuration drift to high 9s- Uplifted aging 2008 infrastructure and reduced overall footprintActive Directory, Azure AD, Tier 0 Management, Configuration Manager

Team & coworkers

Colleagues at EY

Other employees you can reach at ey.com. View company contacts for 296502 employees →

ME

Mohammad Elkhatib, Mba, Pmp®, Mcmi Colleague at Ey Amman, Jordan, Jordan View → IR

Ignacio Rubio Bravo Colleague at Ey Madrid, Community Of Madrid, Spain, Spain View → CL

Chunxiao Li Colleague at Ey Shanghai, China, China View → VS

Vanessa Sarona, Cpa, Ctt Colleague at Ey United Kingdom, United Kingdom View → SR

Suvankar Roy Fca Colleague at Ey Bangladesh, Bangladesh View → EO

Ethan Onyszchuk Colleague at Ey Tempe, Arizona, United States, United States View → JR

Jayshree Raghavachari Colleague at Ey Solon, Ohio, United States, United States View → NM

Niall Miller Colleague at Ey London, England, United Kingdom, United Kingdom View → SV

Sherin Varghese Colleague at Ey Kottayam, Kerala, India, India View → IK

Ioanna Kelepouri Colleague at Ey Greece, Greece View →

FAQ

Frequently asked questions about Marcus Oh

Quick answers generated from the profile data available on this page.

What company does Marcus Oh work for?

Marcus Oh works for EY.

What is Marcus Oh's role at EY?

Marcus Oh is listed as Associate Director at EY at EY.

What is Marcus Oh's email address?

AeroLeads has found 1 work email signal at @ey.com for Marcus Oh at EY.

What is Marcus Oh's phone number?

AeroLeads has found 2 phone signal(s) with area code 404, 207 for Marcus Oh at EY.

Where is Marcus Oh based?

Marcus Oh is based in Alpharetta, Georgia, United States while working with EY.

What companies has Marcus Oh worked for?

Marcus Oh has worked for Ey.

Who are Marcus Oh's colleagues at EY?

Marcus Oh's colleagues at EY include Mohammad Elkhatib, Mba, Pmp®, Mcmi, Ignacio Rubio Bravo, Chunxiao Li, Vanessa Sarona, Cpa, Ctt, and Suvankar Roy Fca.

How can I contact Marcus Oh?

You can use AeroLeads to view verified contact signals for Marcus Oh at EY, including work email, phone, and LinkedIn data when available.

What skills is Marcus Oh known for?

Marcus Oh is listed with skills including Active Directory, Microsoft Technologies, Sccm, It Operations, Scom, System Deployment, Infrastructure, and Data Center.

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