Co-founder, Zenyum

Frederik Krass at Zenyum

Frederik Krass co-founded Zenyum with Julian Artopé in 2018, and invisible braces were on sale in Singapore two months later.

Frederik Krass is a co-founder of Zenyum, the Singapore company that sells clear aligners. He joined Julian Artopé as co-founder when the idea was conceived in August 2018.

Zenyum 3D-printed transparent aligners and sold them at a flat price, with partner dentists to check and fit them. The invisible braces launched in Singapore in October 2018.

A seed round of about $2 million arrived in April 2019. In November 2019 Zenyum raised a $13.6 million Series A from RTP Global, Sequoia India, TNB Aura and Enterprise Singapore's Seeds Capital. L Catterton led a $40 million Series B in June 2021.

The company later added ZenyumSonic electric toothbrushes and ZenyumClear Plus aligners for more complex cases. Zenyum is privately held.

Read the full Zenyum founder story

What is Frederik Krass's role at Zenyum?

Frederik Krass is a co-founder of Zenyum, the Singapore clear aligner company. He started it with Julian Artopé in 2018.

How did Zenyum start?

Zenyum was conceived in August 2018. Its invisible braces went on sale in Singapore in October 2018, two months later.

How much has Zenyum raised?

Zenyum raised a seed of about $2 million in April 2019, a $13.6 million Series A in November 2019 and a $40 million Series B led by L Catterton in June 2021.