Mark-Stone-House

Mark Constantino

Real Estate Agent

About Mark

Before entering real estate, Mark spent 20 years as a CEO, leading organizations, navigating complex negotiations, and delivering results under pressure. Today, backed by The Upstate Team at Keller Williams Greenville Central, he brings that same executive-level precision, high energy, and people-first mindset to every client he serves across the Upstate. Whether you are buying your first home in Verdae or preparing to sell in Simpsonville, Mark offers a strategic, steady hand from start to finish.

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What my clients say

Discover Stories of Success and Satisfaction

"I’ve known Mark for decades, and if there’s one thing I can say with absolute confidence, it’s that his work ethic and integrity are second to none. He’s the kind of person who genuinely cares about dRead MoreRead Less
"Mark Constantino is as genuine as they come. I have known him for decades now, and I can assure anyone who works with him, will be completely satisfied. He will take care of any needs and concerns youRead MoreRead Less
"Mark is the man. Very professional. Great stand up individual and family man. Only flaw is that he is a New York Yankees fan. But I guess we all can’t be perfect. Highly recommend doing business with Read MoreRead Less
"One of the absolute hardest working and dedicated individuals I have EVER known. Gets the job done and genuinely cares about the public he serves."
"I have worked with Mark for many years. He is a focused, high energy, results oriented, integrity driven human! Contact Mark for all of your real estate questions and concerns. He is the guy you can Read MoreRead Less
"Mark is a man of great character, wonderful personality, and a fantastic work ethic. You can trust him to find you the perfect home! I highly recommend him."