The Agency The Agency

Donald Mastroianni

Managing Partner
(Licensed as Donald W Mastroianni)
Don Mastroianni leads The Agency’s North Shore, South Shore, Gold Coast and Brooklyn Park Slope—New York offices as well as The Agency New Canaan, Connecticut office as Managing Partner. He brings more than three decades of industry experience and a keen understanding of the regional markets to The Agency. Don is a graduate of New York University’s business school and holds a Bachelor of Science degree in Accounting with a concentration in Finance.

Mastroianni also serves as CFO and COO of The SafeGuard Group and its solely owned subsidiaries, SafeGuard Homes and SafeGuard Realty and has actively managed over 400 residential home transactions since 2017. His business experience includes serving as assistant Vice President and divisional Controller for a financial services and trading entity with assets in excess of $1 Billion.

Don’s philanthropic and community efforts include multiple terms as a Trustee member
of the Board of Education for the Harborfields Central School District in Greenlawn, NY,
serving as President and Vice President during his term. He has also served 10 years as President of his community’s neighborhood association, volunteered his professional
services to the Carleigh Mac Foundation, which benefits pediatric cardiology, and serving as manager, coach and administrator of youth sports for more than 12 years.

Don lives in Centerport, Long Island with his beautiful wife Jiesu and their three college
graduate children, daughters Sabrina & Alexandra, and their son Don.

Properties Listed by Donald

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Lloyd Harbor, NY
$2,395,000
6 BD, 4.5 BA, 1 SQFT, Single-Family
Listing courtesy of The Agency
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Wading River, NY
$649,900
3 BD, 2 BA, 1,988 SQFT, Single-Family
Listing courtesy of The Agency
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in contract
Islip, NY
$589,000
3 BD, 2 BA, Single-Family
Listing courtesy of The Agency

Featured Past Transactions by Donald

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closed
Port Washington, NY
$1,680,000
6 BD, 3 BA, Single-Family
Represented the seller
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closed
Greenlawn, NY
$1,230,000
5 BD, 3.5 BA, Single-Family
Represented the buyer and seller
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Huntington, NY
$889,000
3 BD, 3 BA, Single-Family
Represented the buyer
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closed
Huntington, NY
$835,000
3 BD, 3 BA, Single-Family
Represented the seller

Donald's Transaction History

Address Type
22 Maple Place Huntington, New York  11743 Sold