In a striking display of confidence in New York City’s economic resilience, a diverse array of major corporations have signed significant long-term office leases in the past three months. This trend spans industries from finance to artificial intelligence, painting a picture of robust optimism despite the city’s contentious political climate.

Mayor Zohran Mamdani, known for his progressive stance and criticism of big business, has taken note of this corporate commitment. ‘The fact that companies across sectors are continuing to make major investments in our city speaks to the strength of the fundamentals of our city’s economy,’ Mamdani stated. ‘They believe in New York’s future.’

Corporate Commitments Across Industries

The Manhattan office market is experiencing its strongest period in years, with leasing activity surpassing 23 million square feet in the first half of 2026. This pace, if maintained, would make it the highest since the year 2000. Each of the last three quarters has seen over 11 million square feet of space contracted, a feat not achieved since 2002.

Vacancy rates have dropped nearly a percentage point to 13%, and average asking rents have increased by 6% over the past year to $78.03 per square foot. This surge in demand is not limited to one sector but encompasses financial services, professional services, technology, artificial intelligence, and consumer goods.

Financial and Legal Sector Investments

Bank of America has expanded its presence in New York, increasing its office space from 1.8 million to 2.4 million square feet through a 20-year lease at a tower on 6th Avenue and 42nd Street. ‘One Bryant Park is a critical cornerstone for our global business,’ the bank affirmed in a statement.

Prominent law firms have also made significant commitments. Simpson Thacher & Bartlett signed a nearly 1 million square foot lease on Fifth Avenue, while Cleary Gottlieb Steen and Hamilton renewed their lease for 500,000 square feet downtown at 1 Liberty. Cosmetics giant L’Oréal Groupe renewed a lease for almost half a million square feet in Hudson Yards, further diversifying the city’s business landscape.

The AI Boom and Its Impact

The artificial intelligence sector is playing a pivotal role in this office market resurgence. AI companies leased twice as much space in 2026 as they did in 2026, and this year they have already signed up for about 1.5 million square feet, nearly double the 800,000 square feet they leased in all of 2026.

Anthropic, a leading AI firm, confirmed it would lease the entire building at 330 Hudson, taking nearly 500,000 square feet as it doubles its workforce to 1,000 employees. This neighborhood is also home to Google’s New York campus, where 14,000 people work, making it the largest tech company presence in the city.

Brooklyn’s Rising Tech Scene

While Manhattan remains a hub for major corporations, Brooklyn is emerging as a hotspot for AI startups. The Refinery office building at the former Domino sugar factory in Williamsburg has become a magnet for these companies. Developed by Two Trees, the Refinery is now 90% leased, with AI companies comprising half of its 80 tenants.

Many of these startups prefer shorter leases, averaging 3,000 square feet and lasting two to three years, reflecting the uncertainty in the rapidly evolving AI industry. Despite this, the Refinery is a buzz of activity, with companies valuing the collaborative environment and proximity to talent.

Looking Ahead: Challenges and Opportunities

Real estate executives, while optimistic about the current market, caution that long-term success depends on maintaining New York’s competitive edge. James Whelan, president of the Real Estate Board of New York, emphasized that companies making 10-, 15-, and 20-year real estate decisions are betting on where talent, innovation, and opportunity will be concentrated in the future.

‘The surge in major office leases across industries reinforces the need for policies that keep New York competitive for employers and workers alike,’ Whelan noted. As Mayor mamdani and his allies push for higher taxes on the wealthy and big businesses, the city must balance these progressive initiatives with the need to attract and retain major corporations.

The diversity of New York’s business base, from Wall Street firms to AI startups, positions the city as a dynamic and resilient economic powerhouse. Despite political challenges, the continued investment in office space signals a strong belief in New York’s ability to adapt and thrive in the ever-changing global economy.