Luís Batalha
Luís Batalha is a Portuguese physicist-turned-entrepreneur and graduate of Instituto Superior Técnico who, with his brother João BatalhaJoão BatalhaJoão Batalha is a Portuguese-born entrepreneur and MIT graduate who, with his brother Luís Batalha and others, founded the e-commerce tool Orankl, the academic-paper annotation platform Fermat’s Library and the AI sales platform Amplemarket, where he serves as chief executive.Open the full entry and others, co-founded the academic-paper annotation platform Fermat’s Library and the AI sales platform Amplemarket, where he is chief product officer.
Contents12 sections
Key facts
Before 2014Studies Physics at Instituto Superior Técnico
He graduated from Instituto Superior Técnico in Lisbon in engineering physics.[1]
At IST he was the best student of his class; he later joined the Portuguese private-equity firm Oxycapital.[2]
He contributed to particle-physics research connected with the International Space Station.[3]
2015Co-Founds Fermat’s Library
In 2015 he co-founded the academic-paper annotation platform Fermat’s Library.[3]
He recalled that he had studied physics with Micael Oliveira and that the project began as the team’s internal journal club before expanding because people liked its interface.[4]
April 2017Fermat’s Library Partners With the Journal Quantum
On April 3, 2017, the quantum-science journal Quantum announced a collaboration with Fermat’s Library giving papers it publishes an entirely voluntary, free option of collaborative online annotation.[5]
September 2017Launches the arXiv Extension Librarian
In September 2017 arXiv featured Librarian, a Chrome extension built by the Fermat’s Library team that shows reference links and generates BibTeX citations while reading arXiv PDFs; the team decided to build it after seeing the results of arXiv’s user survey the year before.[6]
January 2018Fermat’s Library Reaches About 4 Million Monthly Users
As of January 2018 about 4 million people accessed Fermat’s Library each month and the platform held about 1.3 million comments; he said the project’s main goal was to make papers more open and accessible and to spread scientific knowledge.[1]
2019Co-Founds Amplemarket as Chief Product Officer
Amplemarket was founded by João Batalha, Luís Batalha and Micael Oliveira, who had earlier founded Orankl, a Y Combinator-backed email-marketing and reviews platform for e-commerce; the team comprised one computer scientist and two physicists.[7]
August 2021Appears on the Lex Fridman Podcast
In August 2021 he and João Batalha appeared on episode #209 of the Lex FridmanLex FridmanLex Fridman is a Soviet-born, US-raised computer scientist and podcast host who works as an MIT research scientist on human-AI interaction and autonomous driving. His Lex Fridman Podcast is known for hours-long conversations with guests including heads of state and technology leaders.Open the full entry Podcast; topics also included note-taking and soccer.[8]
December 2022Armilar Explains Its Amplemarket Investment
On December 19, 2022, Armilar Venture Partners explained why it had co-led Amplemarket’s $12 million Series A with Comcast Ventures, noting that the engineer founders had to learn sales the hard way.[7]
2025Speaks at SaaStock Europe
In 2025 he spoke at SaaStock Europe 2025 in Dublin as founder and CPO of Amplemarket.[3]
As of October 2026: Chief Product Officer of Amplemarket
As of October 2026, Amplemarket’s website lists him as CPO and founder.[9]
As of October 2026, Fermat’s Library offers Margins, a tool for uploading and annotating papers; the arXiv extension Librarian; and Journal Club, which features papers annotated by its community every week.[10]
Related Organizations, Websites, and Public Accounts
X: Public account: https://x.com/luismbat (opens in a new window)[8]
Fermat’s Library: Official website: https://fermatslibrary.com/ (opens in a new window)[10]
Amplemarket: Official website: https://www.amplemarket.com/ (opens in a new window)[9]
Sources
- Técnico alumni create an innovative platform for academic papers – Técnico Lisboa (opens in a new window)
- Amplemarket – Can sales be replaced by tech? (opens in a new window)
- Luis Batalha, Founder of Amplemarket — Keynotes, Interviews & Full Transcripts (opens in a new window)
- Fermat's Library - Annotating Academic Papers Every Week | Y Combinator (opens in a new window)
- Collaboration with Fermat’s library – Quantum (opens in a new window)
- arXiv Developer Spotlight: Librarian, from Fermat’s Library – News from arXiv (opens in a new window)
- Why Armilar invested in Amplemarket… (opens in a new window)
- #209 - Luís and João Batalha: Fermat's Library and the Art of Studying Papers | Lex Fridman Podcast (opens in a new window)
- About Amplemarket — AI sales platform built by sellers for sellers (opens in a new window)
- Fermat's Library | Home (opens in a new window)