Based in Lisbon

Based in Lisbon

Strategy & Design

Strategy & Design

Thiemo Gillissen is a passionate maker and curious mind. As an entrepreneur, designer, and advisor, he uses design, technology, and purpose to build impactful ventures and helps brands transform.

Thiemo Gillissen is a passionate maker and curious mind. As an entrepreneur, designer, and advisor, he uses design, technology, and purpose to build impactful ventures and helps brands transform.

Thiemo Gillissen is a passionate maker and curious mind. As an entrepreneur, designer, and advisor, he uses design, technology, and purpose to build impactful ventures and helps brands transform.

Thiemo

Thiemo

About

About

About

About

Thiemo combines over a decade of experience as an entrepreneur with a deep passion for building design-led, purpose-driven companies. A Forbes 30 Under 30 honoree, he is recognized as an expert in brand strategy, digital transformation, and venture building. Thiemo co-founded Fifteen Seconds, a global community for personal growth. In his previous role as managing partner at the strategy and design firm moodley, he led the digital business and the international expansion of the group.


Known for his clarity and vision, Thiemo thrives at the intersection of creativity and strategy, bringing bold ideas to life while keeping a keen focus on tangible results.


Throughout his career, he has worked with countless organizations, helping them refine their narratives, innovate their business models, and navigate complex transformations. Whether collaborating on new ventures or revamping legacy brands, Thiemo’s approach is marked by his ability to declutter and streamline and a strong emphasis on purpose and sustainable growth.


Since 2025, Thiemo works with ambitious owners and teams through Another First Step, a venture hub and advisory practice.


Catch him for lunch in Graz, Vienna, or Munich—or join him in his chosen home, Lisbon, for coffee and pastéis de nata.

Thiemo combines over a decade of experience as an entrepreneur with a deep passion for building design-led, purpose-driven companies. A Forbes 30 Under 30 honoree, he is recognized as an expert in brand strategy, digital transformation, and venture building. Thiemo co-founded Fifteen Seconds, a global community for personal growth. In his previous role as managing partner at the strategy and design firm moodley, he led the digital business and the international expansion of the group.


Known for his clarity and vision, Thiemo thrives at the intersection of creativity and strategy, bringing bold ideas to life while keeping a keen focus on tangible results.


Throughout his career, he has worked with countless organizations, helping them refine their narratives, innovate their business models, and navigate complex transformations. Whether collaborating on new ventures or revamping legacy brands, Thiemo’s approach is marked by his ability to declutter and streamline and a strong emphasis on purpose and sustainable growth.


Since 2025, Thiemo works with ambitious owners and teams through Another First Step, a venture hub and advisory practice.


Catch him for lunch in Graz, Vienna, or Munich—or join him in his chosen home, Lisbon, for coffee and pastéis de nata.

Thiemo combines over a decade of experience as an entrepreneur with a deep passion for building design-led, purpose-driven companies. A Forbes 30 Under 30 honoree, he is recognized as an expert in brand strategy, digital transformation, and venture building. Thiemo co-founded Fifteen Seconds, a global community for personal growth. In his previous role as managing partner at the strategy and design firm moodley, he led the digital business and the international expansion of the group.


Known for his clarity and vision, Thiemo thrives at the intersection of creativity and strategy, bringing bold ideas to life while keeping a keen focus on tangible results.


Throughout his career, he has worked with countless organizations, helping them refine their narratives, innovate their business models, and navigate complex transformations. Whether collaborating on new ventures or revamping legacy brands, Thiemo’s approach is marked by his ability to declutter and streamline and a strong emphasis on purpose and sustainable growth.


Since 2025, Thiemo works with ambitious owners and teams through Another First Step, a venture hub and advisory practice.


Catch him for lunch in Graz, Vienna, or Munich—or join him in his chosen home, Lisbon, for coffee and pastéis de nata.

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