
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 d… Read Moreoing things the right way, not the easy way. He doesn't just take this approach in only real estate, he does this with everything he does in life.
What really sets him apart is his commitment to going above and beyond for the people he works with. He doesn’t just aim to get the job done, he makes sure every detail is handled and that his clients feel confident, supported, and truly taken care of throughout the entire process. He also likes to laugh and have fun which is great to be able to add a lighthearted element to a sometimes stressful process.
If you’re looking for someone you can trust completely, who will put in the time, effort, and energy to make sure you’re happy every step of the way, you won’t find a better choice." Read Less

OLS Qigong and Healing

Steven Kempczynski
"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."

Steven Dzikowicz
"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 Morealways count on to show up and deliver on the promises and commitments he makes!!" Read Less

Denise Damato
"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."

Joanne King
