Colliers Hires Corey Horowitz as SVP for Tri-State Region

Horowitz will be responsible for expanding office leasing at Colliers and advising office tenants and landlords across New York City.

Published on Feb. 23, 2026

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Office leasing veteran Corey Horowitz, formerly of real estate advisory firm Mohr Partners, has joined Colliers as the firm's new senior vice president for its tri-state region. In his new role, Horowitz will be responsible for expanding office leasing at Colliers, as well as advising office tenants and landlords across New York City.

Why it matters

Horowitz's hiring is a strategic move by Colliers to bolster its office leasing capabilities in the competitive New York City market. His extensive experience advising high-profile clients and his proven track record in closing deals will be valuable assets as Colliers looks to grow its presence in the region.

The details

Horowitz joined Colliers after just one year and three months at Mohr Partners, where he served as a managing partner and co-market leader for the tri-state area. Prior to that, he held several leadership positions at other brokerages, including Vestian Global, Lee & Associates NYC, Cushman & Wakefield, and Newmark. Throughout his career, Horowitz has advised institutional and private ownership groups as an exclusive leasing agent on over 1.3 million square feet of office and mixed-use deals in Manhattan, Brooklyn, and Long Island City, Queens.

  • Horowitz started his new role at Colliers this month (February 2026).

The players

Corey Horowitz

A real estate veteran with over 20 years of experience advising corporate, institutional, and nonprofit clients in the real estate space, and helping them to meet their operational, financial, and growth goals.

Colliers

A global commercial real estate services and investment management company that is expanding its office leasing platform in the New York City market.

Mohr Partners

The real estate advisory firm where Horowitz previously worked as a managing partner and co-market leader for the tri-state area.

John Gallagher

The executive managing director for Colliers' New York City operations, who commented on Horowitz's hiring.

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What they’re saying

“Corey brings an exceptional depth of experience and a highly strategic approach to office leasing in the tri-state region. His proven track record advising high-profile occupiers and ownership groups, combined with his leadership experience, makes him a valuable addition to our team as we continue to invest in top-tier talent.”

— John Gallagher, Executive Managing Director, Colliers New York City (commercialobserver.com)

“I am thrilled to be joining Colliers and play a role in driving the expansion of its Manhattan office leasing platform. As the market continues to evolve, I am eager to collaborate with the team to deliver cutting-edge, tailored solutions that not just meet but exceed our clients' business objectives.”

— Corey Horowitz (commercialobserver.com)

The takeaway

Colliers' hiring of Corey Horowitz as its new senior vice president for the tri-state region underscores the company's strategic focus on strengthening its office leasing capabilities in the competitive New York City market. Horowitz's extensive experience and proven track record in advising high-profile clients will be valuable assets as Colliers looks to expand its presence and market share in the region.