Career & Credentials
20 years of DUNN Training — Microsoft Gold Partner, 15-time MVP, and hundreds of organizations served
DUNN Training was an Atlanta-based leader in Microsoft technical training from 2002 to 2020, founded by me, Mark Dunn. For nearly two decades, I led a team delivering top-tier courses on .NET, JavaScript, and databases like SQL Server, working with clients ranging from startups to NASA and Coca-Cola.
In 2020, my cancer diagnosis paused that chapter. After three years and remission in 2023, I closed the company — but the love of teaching never left. I still occasionally offer online classes in the subjects I love most, on a relaxed, part-time basis from home on Lake Lanier.
Though I'm semi-retired, I'm happy to share 30+ years of expertise with individuals or small teams. Reach out if you're interested:
Interested in a class for yourself or a small team? I'd love to hear from you.
Get in TouchOver 20 years, I was privileged to train teams at hundreds of companies, universities, and government agencies














































































...and hundreds more across the United States, Europe, and Southeast Asia