Felix Huettenbach: From Munich and MIT to Sameday Health, COVID-19 and Dubai

Felix Huettenbach is a German-born founder and investor, written Felix Hüttenbach in his native spelling, who built the COVID-19 testing company Sameday Health in the United States and is now a co-founder and partner of the Dubai-registered data center developer Terranum. Born on 31 August 1993 in Germany, he describes himself as a founder, investor, adventurer and YouTuber based in Dubai, and his career has moved through Munich, California and Massachusetts to the Emirates.

Key facts at a glance

Early years and a first company in Munich

At 18, after moving to Munich, he started an event production company whose income paid for his university degree. By his own account, he later relocated the company to Los Angeles and eventually sold his stake.

Education across three institutions

From 2012 to 2016 he earned a B.A.Sc. in Technology and Management at the Technical University of Munich, pairing mechanical engineering with business administration. In 2015 he spent a term at the University of California, Berkeley. After graduating, he joined MIT as an International Scholar in a graduate program focused on entrepreneurial studies during 2017 and 2018.

Investment work, health technology and teaching

Between 2016 and 2017 Huettenbach worked on the investment team at Aurelius Equity Opportunities in Munich, where his tasks included market entry analysis and building financial models. He then became Chief of Staff at Quantgene, a company applying machine learning to detect cancers early from standard blood samples. In 2017 he founded W8X, a fitness-technology company, and from 2018 to 2020 he served as a Guest Lecturer and Global Entrepreneur in Residence at the University of Massachusetts Boston.

Sameday Health and the COVID-19 years

When the pandemic began, Huettenbach set up a unit at Quantgene that offered COVID-19 testing to companies. Seeing that the general public also needed fast access to tests, he co-founded Sameday Health in September 2020 and became its CEO. The first clinic, in Venice, Los Angeles, initially traded as Sameday Testing and offered PCR and rapid COVID-19 tests at walk-in locations, with online booking and digital results.

Under Huettenbach as CEO, the company then broadened step by step, according to its own announcements:

That House Calls goal matches what he says motivates him: making healthcare more affordable, transparent and approachable. During his time leading Sameday Health, the network counted 55 sites nationwide by April 2022, including 16 in Los Angeles County, with a workforce the company put at 1,200. Huettenbach has summarised the hiring phase of Sameday Health's COVID-19 testing network as "1,000 employees in 100 days."

In early 2023, he and the management team concluded that a physician should lead the company so it could broaden its medical services. Huettenbach stepped back that year and turned his attention to investing and infrastructure.

From Sameday Health to Terranum and digital infrastructure

Today he is a co-founder and partner of Terranum, a digital infrastructure company that develops data center campuses powered by renewable energy. In March 2026 he and Terranum's Victor Decalf travelled to Prieska in South Africa's Northern Cape with the Prieska Power Reserve team, meeting the mayor and senior officials about preliminary approval. The planned campus is a 100 MW, fully off-grid site running on 100% renewable energy and designed for hyperscale demand by 2029; the partners describe it as Africa's largest planned data center campus.

Huettenbach draws a direct line from his previous company to this one. He argues that running Sameday Health, with its many physical sites, official approvals and need for near-zero downtime, prepared him for the demands of data center development.

Angel investing

Alongside Terranum, he invests in founder-led companies as an angel investor. According to his own disclosures, his positions include SpaceX and xAI, the Y Combinator startup Platus from batch F24, where he is also listed as an investor, and the food brand House of Macadamias. His SpaceX reasoning is laid out in a LinkedIn essay, "Why I Became an Early Investor in SpaceX (Hint: Starlink)": in his view, Starlink turned SpaceX from a visionary bet into a business case, because billions of people still lack reliable internet. Asked what he looks for in founders, he has answered: "Ownership mindset is the first signal."

Policy views and life outside work

He also supports the proposed EU Inc company form, provided formation is fully digital. His filmed challenges include earning a skydiving license in 10 days and trying to become a pilot in 30 days. He says he has sought out environments where he was far from the best since childhood, and he still hopes to surf a barrel wave one day. An overview of his ventures is kept on felixhuettenbach.com, while his essay on investing in SpaceX appeared on LinkedIn.