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Maria Valanzano | Colliers | Long Island

Maria Valanzano

Senior Managing Director

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Professional Summary

Joining the Colliers International Long Island team in 2012, Maria is Senior Managing Director specializing in Tenant Representation and Landlord Representation in office and investments. Maria has been a determined, eager, and motivated sales representative since her start. She has brought a new face to the Real Estate industry and is currently an asset team member to the commercial office department. In 2014, Maria was chosen to receive the CIBS Rising Start Award for her determination and success in the Commercial Real Estate Industry on Long Island.

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 transacted the sale of a 15,000 SF office building on one 
of the most well-known streets in Garden City, formerly the US Trust Building. In addition, she represented Contour 
Mortgage on their 20,000 SF extension and expansion, as well as represented Alliant Insurance on their 20,000 
SF renewal. As of March 2019, Maria had subleased 40,000 SF off office space for FalconStor at 2 Huntington 
Quadrangle. Maria was a part of the Landlord representation team for leasing and then selling 175 Pinelawn Road in 
Melville NY in 2019. Maria is also part of the Catholic Health Services RE Team for Colliers Long Island in which they 
leased 50,000 SF at 500 Commack Road in Commack and 14,000 SF at 320 S Service Road in Melville during 2019. 

Highlights of her 2020 year include the Expansion of Alliant Insurance at 333 Earl Ovington Boulevard, which consisted 
of 14,045 SF and the Expansion of Arbor Multifamily Lending’s, also located at 333 Earl Ovington Boulevard, which 
consisted of 7,361 SF. She transacted the sale of two multifamily buildings located on Grand Avenue in Baldwin in 
July 2020.  As of August 2020, Maria is part of a team from Colliers Long Island to represent CLK Properties on the Landlord Representation of 275 Broadhollow Road, a 150,000SF Class A Office Building in the heart of Melville, NY.  As of September 2020, Maria is one of two agents from Colliers representing Tritec & UBS on the leasing of Stonybrook Technology Center Medical Office Park consisting of +/- 200,000 SF. 



 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 
• 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 
• Pelvic Rehabilitation 
• D3 Capital 
• CLK Properties 

• Prestige Marketing Ventures 
• Contour Mortgage 
• NY Bariatric Group 
• Alliant Insurance 
• K Plan Associates 
• Premium Holistic 
• FalconStor 
• LNR Partners 
• Cranial Technologies 
• Good Egg 
• Foley Services 
• Healios CBD 
• Norton Ventures 
• Chung Ying Physical Therapy & Acupuncture 
• Arbor Multifamily Lending 
• Tritec 



"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

"Maria is a responsive and caring professional and person. It was my honor and privilege to be a client of hers, and I cannot say enough good things about her efforts in communicating with the parties, attorneys, and other stakeholders in our deal. Her energy and positive attitude made a real difference during a very challenging time." -- Jacqueline Harounian, Esq. ,  Partner at Wisselman, Harounian & Associates, P.C

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