Felix Huettenbach and Sameday Health: Frequently Asked Questions
Felix Huettenbach is the co-founder and former CEO of Sameday Health, a company that offered COVID-19 testing at walk-in sites in the United States from 2020, and is today a Dubai-based investor and co-founder of the data center developer Terranum. The questions below collect the most common points people ask about him and the company, answered from the public record.
Quick reference
Born 31 August 1993 in Germany; also spelled Felix Hüttenbach. Co-founded Sameday Health in September 2020 in Venice, Los Angeles, and served as its CEO. Grew to 55 American sites and a workforce above 1,000 by April 2022. Stepped back in 2023 when the company moved to physician-led management.
Questions and answers
1. Who is Felix Huettenbach?
He is a German entrepreneur and, in his own description, a founder, investor, adventurer and YouTuber based in Dubai. He studied Technology and Management at the Technical University of Munich, spent a term at UC Berkeley and was an International Scholar in entrepreneurial studies at MIT.
2. What is Sameday Health?
It is a company Huettenbach co-founded in September 2020, together with Max Oscar Oehme as COO, to provide fast COVID-19 testing to the general public. Customers could walk in or reserve online, take a PCR or rapid test, and receive the result digitally.
3. How did the company start?
Its roots lie at Quantgene, where Huettenbach served as Chief of Staff; that company applies machine learning to standard blood samples to find cancers early. When the pandemic began he set up a unit there that offered COVID-19 testing to companies. Because the general public also needed fast testing, he then co-founded Sameday Health with a single site in Venice, Los Angeles.
4. How large did the testing network become?
Under Huettenbach as CEO, the network counted 55 sites nationwide by April 2022, with 16 in Los Angeles County alone. It employed more than 1,000 people; the company itself cited 1,200.
5. What does "1,000 employees in 100 days" refer to?
It is how Huettenbach later described the hiring phase at the company, when the company had to staff new testing sites in a short space of time.
6. What did a visit to a Sameday Health site involve?
A customer could arrive without an appointment or reserve a slot online beforehand, choose between a PCR test and a rapid test, and then receive the result digitally. This walk-in format was rolled out to many locations, while the company also ran other set-ups, among them a drive-thru outside Tysons Corner Center in Virginia and the vaccination site at Staples Center. Huettenbach says he is passionate about making healthcare more affordable, transparent and approachable, and this low-threshold visit was one practical form of that.
7. Did Sameday Health offer more than COVID-19 testing?
Yes. During his time as CEO, from March 2021, it administered vaccines at a drive-through site at Staples Center in downtown Los Angeles and offered at-home testing through a Concierge Service. In November 2021 it launched House Calls in areas including Atlanta, Boston, Denver, San Diego and New York, where a nurse could arrive as soon as within the hour for tests, STD screening, IV drip therapy or wellness panels. Virtual urgent care consultations, with same-day medication delivery by partner pharmacy Capsule, followed in 2022 in select states. At the House Calls launch Huettenbach said that "there is a demand for more convenient, personalized care".
8. How were bookings and results handled?
Through a scheduling and results platform that, according to the company, four MIT software engineers built specifically for it, a link to Huettenbach's own time at MIT as an International Scholar. The system was connected to local laboratories and alerted customers automatically when their results were ready. The company also reported reaching more than 1.5 million tests and over 50,000 vaccines by late 2021.
9. Who took over the leadership of Sameday Health?
Leadership passed to a physician. In early 2023, Huettenbach and the management team agreed that a doctor at the helm would help the company broaden its medical services, and Huettenbach stepped back from the company that year.
10. What is Felix Huettenbach doing now?
He works in investing and infrastructure. As co-founder and partner of Terranum, he develops renewable-powered data center campuses; the company's legal entity is Terranum Capital FZCO, based in Dubai's IFZA Business Park. In March 2026 he and Terranum's Victor Decalf visited Prieska, in South Africa's Northern Cape, with the Prieska Power Reserve team to discuss preliminary approval with the mayor and senior officials. The campus planned there is designed as a 100 MW, fully off-grid site running on 100% renewable energy for hyperscale demand by 2029.
11. Does he connect his COVID-19 testing years with his data center work?
He does. Huettenbach argues that running Sameday Health, which involved multi-site physical infrastructure, official approvals and near-zero downtime, prepared him for developing data centers.
12. What else is he known for?
He is an angel investor in founder-led companies. According to his own disclosures, his positions include SpaceX and xAI, the Y Combinator startup Platus from the F24 batch, and the food brand House of Macadamias. He also runs a video series featuring challenges such as earning a skydiving license in 10 days and trying to become a pilot in 30 days. On policy, he supports the proposed EU Inc company form, provided company formation becomes fully digital, including notarization.
Summary
In short, Felix Huettenbach is best known for building Sameday Health into a national COVID-19 testing network that counted 55 locations and a workforce of more than 1,000 people by April 2022. Since stepping back in 2023, he has concentrated on investing and on renewable-powered data center infrastructure through Terranum. Further background is available on felixhuettenbach.com, and he writes about investing on LinkedIn.
