Alberto Rosas
| Alberto Rosas | |
|---|---|
 Alberto Rosas.jpg Alberto Rosas | |
| Born | 1997 Barcelona, Spain |
| 🏳️ Nationality | Spanish |
| 🏫 Education | Polytechnic University of Catalonia |
| 💼 Occupation | Entrepreneur |
| Known for | Co-founder and CEO of Didit; co-founder of Santé (Santé Clinics, Santé Labs) |
| 👪 Relatives | Alejandro Rosas (twin brother) |
| 🌐 Website | rosasalberto didit santeclinics santelabs |
Alberto Rosas (born 1997)[1] is a Spanish entrepreneur and engineer from Barcelona.[2] He is the co-founder and chief executive officer of Didit, an identity verification and fraud prevention company backed by Y Combinator,[3] and a co-founder of Santé, a Spanish aesthetic medicine and longevity company that runs Santé Clinics and the blood-testing service Santé Labs.[2][4] He has built his companies with his identical twin brother, Alejandro Rosas.[2]
Early life
Rosas was born and raised in Barcelona with his twin brother.[2][5] He played competitive tennis from the age of eight, was among the top players in Spain for his age group and played a world championship at 14, before stopping at 15.[5][6] As teenagers the twins worked in Barcelona's nightlife as nightclub promoters and bartenders.[5] At 18 he returned to tennis on a six-month scholarship at a university in Kentucky in the United States, then came back to Barcelona to study.[6][5]
Education and research
He studied electronic and industrial engineering at the Polytechnic University of Catalonia (UPC), where he received an award for the best academic record across its engineering degrees.[6][5] During his degree he worked as a university researcher on detecting dyskinesia in people with Parkinson's disease using deep learning, and he later completed a master's degree in applied mathematics together with his brother.[6][5]
In 2020 he published two open-source machine learning projects: a port of Nvidia's StyleGAN2 image-generation model to TensorFlow 2,[7] and mil, a Python library for multiple-instance learning that grew out of his Parkinson's research.[8][4]
Career
Didit
Rosas co-founded Didit with his brother in 2023.[9][3] The company sells identity verification and fraud prevention tools to businesses through a single API, covering document checks, biometric liveness and deepfake detection.[9] As chief executive he leads the company's vision, operations and commercial growth, while his brother leads technology.[2] He has said that before the company's first funding around sixty investment funds turned it down.[6]
Didit was part of Y Combinator's Winter 2026 batch.[3][10] In May 2026 it announced a seed round of 7.5 million US dollars led by Y Combinator, with participation from Pioneer Fund, Orange Collective, Founders Future, Phosphor Capital, SaaSholic and Rebel Fund.[9] As of October 2026 the company states that more than 3,000 organisations use it and that it covers over 220 countries, with headquarters in San Francisco and an office in Barcelona.[11]
Santé
With his brother he founded Santé, which began as an aesthetic medicine clinic on Avenida Diagonal in Barcelona and grew into a wider longevity and preventive health business.[2][4] Its clinics operate as Santé Clinics; in October 2026 El Español reported that the Barcelona clinic employed around 30 professionals and that a second clinic was being prepared in the Chamberí district of Madrid.[2] The group also runs Santé Labs, a blood-testing service in Barcelona.[12] Rosas describes his role at Santé as co-founder in charge of high-level strategy, and has spoken publicly about running the company's marketing and go-to-market himself in its early years.[4][13]
Angel investing
Rosas invests in early-stage startups together with his brother, with around 20 investments, many of them companies from Y Combinator's Winter 2026 batch.[4]
Media
In October 2026 El Español profiled the twins in its Disruptores section.[2] The same month he told his story on the Spanish-language Nova podcast,[6] and in August 2026 he published a talk on how he built the go-to-market of Santé and Didit.[13]
Personal life
Rosas is an identical twin; his brother Alejandro is his co-founder at both Didit and Santé.[2] He divides his time between Barcelona and San Francisco.[1] He speaks four languages, is a licensed skydiver with around 100 solo jumps, and trains CrossFit and boxing.[5]
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Alberto and Alejandro Rosas -
The Rosas twins
References
- ↑ 1.0 1.1 "Alberto Rosas". rosasalberto.com. Retrieved 2026-10-26.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 Beatriz Aznar (2026-10-04). "Dos gemelos, dos universos y un mismo mapa del éxito: la saga de los hermanos Rosas entre el software y la medicina estética". El Español (in español). Retrieved 2026-10-26.
- ↑ 3.0 3.1 3.2 "Didit: Infrastructure for identity and fraud". Y Combinator. Retrieved 2026-10-26.
- ↑ 4.0 4.1 4.2 4.3 4.4 "Things I build". rosasalberto.com. Retrieved 2026-10-26.
- ↑ 5.0 5.1 5.2 5.3 5.4 5.5 5.6 "About: a lucky life". rosasalberto.com. Retrieved 2026-10-26.
- ↑ 6.0 6.1 6.2 6.3 6.4 6.5 "En España nadie me valoraba. Me fui a EEUU y me backeó Y Combinator". Nova (YouTube) (in español). 2026-10. Retrieved 2026-10-26. Text " Alberto Rosas, Didit" ignored (help); Check date values in:
|date=(help) - ↑ "StyleGAN2-TensorFlow-2.x". GitHub. 2020-05. Retrieved 2026-10-26. Check date values in:
|date=(help) - ↑ "mil: multiple instance learning library for Python". GitHub. 2020-09. Retrieved 2026-10-26. Check date values in:
|date=(help) - ↑ 9.0 9.1 9.2 Joseph Gabriel Lagonsin (2026-05-29). "Didit raises USD $7.5 million seed to scale identity". SecurityBrief UK. Retrieved 2026-10-26.
- ↑ "Launch HN: Didit (YC W26) – Stripe for Identity Verification". Hacker News. 2026-03-10. Retrieved 2026-10-26.
- ↑ "Didit: identity and fraud infrastructure". Didit. Retrieved 2026-10-26.
- ↑ "Análisis de sangre en Barcelona". Santé Labs (in español). Retrieved 2026-10-26.
- ↑ 13.0 13.1 "How I ran GTM solo from zero to $5M+". YouTube. 2026-08. Retrieved 2026-10-26. Check date values in:
|date=(help)
External links
- Alberto Rosas (official website)
- Didit (official website)
- Santé Clinics (official website)
- Santé Labs (official website)
- Alberto Rosas on X
- Didit on Y Combinator
