Olshan Group LLC

Olshan Group LLC

641 Lexington Avenue
22nd Floor
New York, New York 10022
(914) 319-8751


Mariellen Sullivan Carpenter is a licensed salesperson with Olshan Group LLC. As a lifelong resident of Bronxville and a graduate of the Bronxville School, she has extensive knowledge of the Bronxville Village and the surrounding areas. She lives in Bronxville with her husband Noble Carpenter, President, Capital Markets, Americas, for DTZ, a global commercial real estate firm. They have raised four children, of which three have graduated from the Bronxville Schools and the fourth is presently in high school.

Mariellen has an MBA from Northwestern University’s Kellogg Graduate School of Management and a BA from Georgetown University. She began her career as a financial analyst at Salomon Brothers and then moved into the field of marketing after business school. She is an accomplished brand marketer with a successful track record building national brands at Playtex and Kraft for bottom-line profit. She has a strong background in finance and marketing.

Outside of work, Mariellen has been an active non-profit fundraiser, philanthropist and organization builder for positive social impact. She has extensively and consistently volunteered and chaired numerous committees in the Bronxville Elementary, Middle and High schools. She has also served as Chair of the Bronxville School Foundation, Chair of the Reformed Church Nursery School, Membership Chair of the Board of the Junior League and has served three years on the Non-Partisan Committee, which vets candidates for the Bronxville School Board.

Her business skills combined with her extensive knowledge of the area will benefit both buyers and sellers in making the best decisions when purchasing or listing a home. Olshan Group LLC is an affiliate company of Olshan Reality Inc. 

Special offer for Big City Moms

Mariellen is your real estate agent for a personalized search for a home. She 

is particularly strong in Southern Westchester and is a life long resident of

Bronxville, New York.