Fast-Growing AI Startup Clay Makes Major Manhattan Move with 163K-SF Lease at 11 Madison

In one of the more significant office leases to emerge from Manhattan's tech sector this year, artificial intelligence-powered sales platform Clay has signed a 10-year agreement to relocate its headquarters to SL Green Realty's flagship 11 Madison Avenue. The Brooklyn-native company will occupy more than 163,000 square feet across the 14th and 16th floors of the prestigious Flatiron District tower, marking a major milestone in the startup's expansion trajectory.

The move comes at a pivotal moment for Clay, which has reportedly achieved $100 million in annual recurring revenue—a benchmark that has fueled the company's need for larger, more centrally located offices. The 2.3 million-square-foot Art Deco landmark, long considered one of Manhattan's premier business addresses, will now serve as the new home for one of the AI industry's rising stars.

According to Commercial Observer, the deal spans two full floors and represents a significant commitment from a company that has rapidly scaled its operations in recent years.

Key Details

• Tenant: Clay, an AI-driven sales automation and prospecting platform
• Landlord: SL Green Realty Corp., Manhattan's largest office landlord
• Property: 11 Madison Avenue, a 2.3 million-square-foot tower in the Flatiron District
• Lease Size: 163,095 square feet across the 14th and 16th floors
• Lease Term: 10 years
• Context: Clay recently surpassed $100 million in ARR, prompting the need for expanded headquarters space

Market Impact

This transaction underscores several important trends shaping New York's commercial real estate landscape. First, it demonstrates that well-capitalized AI and technology companies continue to drive substantial leasing activity, even as the broader office market navigates post-pandemic adjustments. The tech sector's appetite for high-quality, amenity-rich buildings remains robust—particularly for companies experiencing hypergrowth.

For landlords, Clay's decision to move from Brooklyn to a trophy Manhattan asset reinforces the enduring appeal of premier properties. SL Green's ability to attract a fast-growing AI firm speaks to the competitive advantage that Class A buildings with strong infrastructure and prestige continue to hold.

Additionally, the 10-year term provides welcome stability in a market where lease commitments have sometimes shortened. For CRE professionals tracking tenant migration patterns, Clay's move illustrates the gravitational pull that established Manhattan business districts still exert on emerging tech companies seeking credibility, talent access, and visibility.

Finally, this deal may signal a broader shift of AI-focused firms from outer-borough incubator spaces into Manhattan's core—a trend worth monitoring as the sector continues to mature.