OGMO is an architecture and design firm.

We design not only spaces – we craft experiences. Our goal is architecture that infuses both beauty and logic. We are focused on efficiency, innovation and user-centered design.

OGMO is where architecture is an art piece guided by logic, and every design tells a compelling story.


We think outside the box and strive for perfection in every project. Our achievements are proof of our passion for architecture.

2018 – Honorable Mention in International Competition for Prague Ebraic Museum

2020 – Honorable Mention Innatur 9 International Competition

2021 – Honorable Mention in Builder Competition for Young Architects

2021 – Honorable Mention in City&Rest Competition

Partners at OGMO

Different backgrounds, one direction.

OGMO brings together the distinct experiences and shared passion for architecture of both partners – passion to craft unique spaces and experiences for their users.

Olga Gumienna is a business-force and co-founder at OGMO. She gained international educational experience in Poland, Italy, and the Netherlands. Olga graduated with honors and was nominated for the Archiprix award (2019) at Delft University of Technology (TUD) in The Netherlands.
In architecture, Olga has achieved recognition, among others by winning the ECCA Prepainted Metal Trophy (2021) and receiving an honorable mention in a housing project competition in Stargard, Poland (2023, with Urban Climate Architects).
Apart from her role at OGMO, Olga works as Associate Director at Urban Climate Architects in the Netherlands, leading the firm’s expansion into the Polish market.
Olga specializes in sustainable BREEAM certified projects, such as The Urban Woods in Delft. Her focus is on multi-family housing, particularly in timber high-rise construction.
She is a registered architect in the Netherlands and Poland, and an active member of Architecten Register in the Netherlands and IARP in Poland.

Marcin Osak is the pragmatic and creative co-founder at OGMO. He also graduated with honors from TU Delft, second best world university in architecture, commencing at the same time a career marked by achievements in architectural competitions.
He gained professional experience during his work at award-winning architectural practice cepezed, where he contributed to several successful projects such as Tania Leonhuis (2022) – Education Building for Health Faculty in Amsterdam or MHXL (2022) – Mobility Hub in Papendorp (2023).
His expertise lies in prefab and steel construction systems, focusing on offices, parking structures, and laboratories. His design approach emphasizes flexibility and efficiency of large-surface structures.
His experience in the Netherlands has honed his skills in tender procedures, making him expert at public commissions. His dedication to efficiency and functionality defines the design philosophy at OGMO.

OGMO’s journey began with a vision to blend these two distinct experiences into a harmonious whole.

The result? A design firm that’s uniquely OGMO.