Mayer Brown Expands NYC Footprint to Fuel Growth Strategy

“We have room to continue growing, although the trajectory suggests we'll need to keep thinking about additional expansion in the future," said office managing partner Allison Aviki.

By Ryan Harroff

What You Need to Know

• Mayer Brown added two new floors at its Sixth Avenue location on August 31 and will say goodbye to an existing floor by October 31.
• New York Managing Partner Allison Aviki told Law.com that the expansion of space in New York will help the firm grow its offerings both in the city and internationally, since it is a hub for visiting attorneys.
• The New York office is on pace for its most profitable year yet in 2026, Aviki said.

Mayer Brown is adding 49,000 square feet to its Sixth Avenue office, the firm said, as part of a broader growth strategy in New York that the firm sees fueling firmwide expansion.

The firm added two new floors at 1221 Sixth Avenue, floors 23 and 24, on August 31 on top of its existing presence on several other floors in the building. After letting go of partial space on another floor by the end of this month, the firm said it will now have 330,662 square feet in New York.

Office managing partner Allison Aviki said the new space allows room for headcount expansion that she said will continue as Mayer Brown prioritizes New York growth.

“We've surpassed 300 attorneys in New York and have more than 500 colleagues in the office overall,” Aviki said. “We have room to continue growing, although the trajectory suggests we'll need to keep thinking about additional expansion in the future.”

The new floors feature conference rooms at all four corners of the building, with attorney offices of multiple sizes on the interior and exterior, as well as large professional staff spaces. The floors also feature lockers for visitors, a changing room for those about to head into court, a “recharge room” where people can relax during the day, a maternity room and snack/coffee lounges by the elevators.

Both new floors also feature extra-wide hallways, which a firm representative said are meant to encourage spontaneous collaboration and quick exchanges without fear of blocking the passageway for others.

Aviki said that Mayer Brown views growth and expansion in New York as beneficial both for its offerings in the city itself and its ability to grow in other offices around the world. New York is a frequent hub for visiting attorneys, and having a large and strong presence in the city is attractive to potential laterals that would be based in places like Tokyo or Latin America as well, Aviki said.

As far as what practices that growth is focused on, Aviki said that Mayer Brown is hiring in a variety of areas that fall under the same core priorities.

“I would describe it as building intentionally around our financial-services core. That includes financial institutions, private credit, distressed transactions, disputes, banking and securities enforcement, and international arbitration,” Aviki said, adding that the office has also built out much of its technology-related practices like fintech, AI and tech-focused transactions.

Growth in those practices has contributed to a strong financial year for Mayer Brown, Aviki said. While declining to provide profit figures, she said the New York office had its most profitable year ever in 2025 and is currently on track to surpass that record by the end of 2026.

Reprinted with permission from the October 14th edition of New York Law Journal © 2026 ALM Properties, Inc. All rights reserved. Further duplication without permission is prohibited.