This is what we found on Wikipedia regarding the Rooftop Wellness Garden at KAFD in Riyadh:

Omrania and Associates (Arabic: عمرانية وشركاه), also known as Omrania, is an international architectural, engineering, and urban planning firm based in Riyadh, Saudi Arabia. Founded in 1973, it specializes in the design of contextual and high-performance design projects.

The firm has designed a diverse range of buildings and infrastructure projects in Saudi Arabia, as well as in the Middle East, Europe, and North Africa. Omrania's best-known projects include the Kingdom Centre (Kingdom Tower), the Public Investment Fund (PIF) (formerly Capital Market Authority Headquarters) Tower, and the Aga Khan Award-winning Tuwaiq Palace in Riyadh's Diplomatic Quarter. The firm's most recent high-profile project in development is the King Salman Park in Riyadh, which will become the largest city park in the world.

With approximately 500 employees, Omrania has two offices in Riyadh and additional offices in Jeddah and Amman, Jordan. The four office teams include professionals from more than 30 countries.  The company is led by a board of directors representing all design disciplines and administration units.

On November 14, 2023, Egis announced that it had completed the purchase of Omrania.