Our People

The Collective A is a family composed of a varied collection of people from different backgrounds, countries and histories with one thing in common: their passion for Design.

Henry Unterreiner

Structural Engineer

Before co-founding the Collective A, Henry has had an exciting career working as a structural engineer at Arup around the world: London, New York, Beijing.

With a passion for Design and Collaboration, Henry is always challenging the status quo, stimulating creativity through teamwork and play. His boundless energy for resolving challenges accompany each of our endeavor.

Ary Altman


With a unique sensitivity to design and architecture, Ary crafts each of his project with detailed attention. His passion for design has lead him to gain expertise in small scale furniture design to large scale domestic buildings.

As a co-founder, Ary builds on his experience leading his own studio in the past and brings his experience designing sensitive architecture living in harmony with their context.

Mona Camille


Mona's multicultural and multidisciplinary background shapes her creativity to imagine playful designs and immersive installations.

She also shares her passion as a tutor at the AA School of Architecture in London.

David Lewis

Structural Engineer

David has been working for over 40 years as a structural engineer with world renown architects on an impressive array of award winning architectural projects.

Part time retired now, David shines his light of knowledge and supports our collective with his technical reviews and mentorship.


Constantino Baranda
Cristina Garza Lasierra
Max Comfort