Maria Valanzano | Colliers International | Long Island

Maria Valanzano

Associate Director

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Professional Summary

Upon joining the Colliers International Long Island team in 2012, Maria is a Senior Director specializing in Tenant Representation with expertise in office and investments. Maria has been a determined, eager and motivated sales representative. She has brought a new face to the real estate industry and is currently an asset team member to the commercial office department, alongside being a member of CIBS (the Commercial Industrial Brokers Society).

Maria has successfully worked on an abundance of Real Estate transactions in the Long Island Marketplace. A few notable deals include Catholic Health Services, Medi Weight Loss, Guardian Life Insurance, Winthrop University Hospital, NY Bariatric Group, PS&S, and Wolters Kluwer. She recently closed on the sale of a 15,000 SF Office Building on one of the most well-known streets in Garden City. In addition, she represented Contour Mortgage on their 20,000SF extension and expansion, as well as represented Alliant Insurance on their 20,000SF renewal in 2017. Maria received the award of CIBS Rising Star in 2014. 

Maria attended Siena College in Loudonville, New York and graduated with a Bachelor of Science in Business Management and Marketing. She graduated with Dean’s List honors and was recognized for her academic success by the Business School’s executives. While attending Siena, Maria was nominated for the Siena College Leadership Conference in recognition of her leadership qualities.


 2014 CIBS Rising Star Award.


Siena College, B.S. in Marketing & Management

Memberships & Involvements

Maria is a long-time member of Habitat for Humanity, an organization she has been a part of since 2006 alongside The John Theissen Children’s Foundation. She is one of the team leaders for F.A.N club, an organization which creates events and socialization for adults living with down syndrome. Additionally, Maria also donates monthly to the ASPCA, supporting her love of animals.




• ENT & Allergy Associates • North Shore LIJ • Winthrop University Hospital • Catholic Health Services • BCG Engineering & Consulting Inc. • United Water • World Wide Express • Wolters Kluwer • AEN Review Solutions • 3PL Consulting • GOS Technical Services • World Discount Telecommunications • Guardian Life Insurance • PS&S • Garden City Sleep Center • Prestige Marketing Ventures • Contour Mortgage • NY Bariatric Group  • Alliant Insurance  • K Plan Associates  • Premium Holistic  • FalconStor • LNR Partners


"Maria is a top sales professional with a heart of lion! She is business all the time. Always trying to win accounts and build relationships. She is detail oriented and hard working. She provides a strategic approach to the business model."--Patrick Kelty, Senior Solutions Specialist from CA Technology

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