Press Releases December 4, 2023

Dar Group—a Global Collective of Leading Architecture, Design, and Engineering Firms—Rebrands as Sidara at COP28 in Dubai

People converse in one of 150 Holborn's studio spaces.
Sidara member firms Perkins&Will, Dar, Introba, Portland Design, Penspen, Currie&Brown, and Maffeis collaborate under one roof at 150 Holborn in London.

DUBAI—Dar Group, an international collaborative that includes world-renowned architecture, design, engineering, and project management brands like Perkins&Will, TYLin, Dar, Currie & Brown, and Penspen, today introduces a new identity: Sidara.

The rebrand, which was announced at COP28, the United Nations’ Climate Change Conference, marks the start of a new era of enhanced and more intentional collaboration among the Sidara member firms. While the firms will continue to operate independently and retain their unique brands and cultures, they will also look for opportunities to unite around their shared values—sustainability, livability, and digital innovation.

By combining their specialized areas of expertise when it makes sense for a given client, the firms can offer more comprehensive solutions to complex challenges, including planning, designing, and engineering tomorrow’s airports, mobility infrastructure, hospitals, urban developments, and science and technology hubs.

Approximately 19,000 people in more than 300 cities worldwide make up the talented teams of Sidara. For more information, visit

A light-filled courtyard with a wide, geometric awning.
Perkins&Will worked closely with Sidara member firms to create Princess Nourah Bint Abdulrahman University (left) and the Solidarity Transport Hub Poland design competition (right).