SL Green Signs New 64,000 Square Foot Lease with Sigma Computing at One Madison Avenue

NEW YORK, July 16, 2025 (GLOBE NEWSWIRE) -- SL Green Realty Corp. (NYSE:SLG), Manhattan’s largest office landlord, today announced it has signed a new 64,077 square foot lease with Sigma Computing, Inc. for a portion of the 3rd floor at One Madison Avenue, bringing the property to 78.1% leased. To date in 2025, SL Green has signed Manhattan office leases totaling 1,260,707 square feet, while maintaining a current pipeline of approximately 1.0 million square feet. “We’re excited to welcome Sigma Computing to ...