Guido Grinbaum
Guido Grinbaum is an Argentine serial entrepreneur with more than 25 years building digital companies: founder of DeRemate.com, DineroMail and Wabi, and former CEO of La Nación Digital. In 2023 he founded POK Proof of Knowledge, the digital credential platform used by more than 1,100 institutions in 19+ countries.

years building digital companies
exits
institutions issue with POK
countries with POK presence
Trajectory
More than 25 years of experience in digital transformation
Guido Grinbaum (Buenos Aires, August 26, 1966) is an Argentine businessman and entrepreneur specialized in digital innovation, fintech, and education. He began his career at Unilever and PepsiCo, where he worked for more than a decade in marketing and operations. He then became one of the most recognized serial entrepreneurs in Latin America.
He founded companies such as DeRemate.com (acquired by MercadoLibre), DineroMail (sold to PayU/Naspers), ZonaJobs, ZonaProp, DeMotores, and Baazee.com (India, acquired by eBay).
He was CEO of La Nación Digital between 2006 and 2014, leading the group’s digital transformation. He also joined the Coca-Cola Retail Innovation Council and co-founded Wabi, a marketplace developed together with Coca-Cola.
Track record
Companies founded by Guido
DeRemate.com
1999E-commerceBaazee.com
MarketplaceAcquired by eBay
DineroMail.com
FinTechSold to PayU/Naspers
La Nación Digital
2006–2014Digital mediaTransformation and leadership (2006–2014)
ZonaJobs.com / ZonaProp.com / DeMotores.com
ClassifiedsSold to Navent / TigerGroup / QuintoAndar / CarSales
Wabi
MarketplaceThe Coca-Cola Company
POK (Proof of Knowledge)
2023EdTech / BlockchainGlobal expansion in education and enterprises
POK Proof of Knowledge
POK: digital credentials and blockchain
In 2023 he founded POK, a leading platform for verifiable digital credentials and micro-credentials. The solution is already used by more than a thousand institutions in Latin America, the U.S., and Europe, and integrates with global standards such as Open Badge 3.0 and the European Learning Model.
Guido Grinbaum, founder and chairman of POK – Proof of Knowledge, together with his team decided to create an innovative platform for verifiable digital credentials, convinced that the future of education lies in micro-credentials and international standards such as Open Badge 3.0.
After more than 25 years leading digital transformations and founding successful startups, Guido clearly saw that universities, companies, and governments needed a new way to certify learning and skills: agile, secure, interoperable, and blockchain-based.
For Guido Grinbaum and POK, micro-credentials are not a passing trend, but the foundation of a new educational and professional ecosystem. In a world where artificial intelligence and automation are transforming professions faster and faster, organizations require systems that validate in real time the skills of their students and collaborators. Digital credentials Open Badge 3.0 make this possible: offering trust, traceability, and international recognition.
With global presence and the recognition of hundreds of institutions, Guido and the POK.tech team decided to be protagonists of this change, developing the most innovative technology so that digital credentials and micro-credentials become the educational standard of the present and the future.
Press & media
Articles & Interviews
News
Videos & Podcasts
FAQ
Frequently asked questions about Guido Grinbaum
Who is Guido Grinbaum?
Guido Grinbaum (Buenos Aires, 1966) is an Argentine serial entrepreneur specialized in digital innovation, fintech and education. He is the founder and chairman of POK Proof of Knowledge, a digital credential platform, and previously founded companies such as DeRemate.com, DineroMail and Wabi.
What companies has Guido Grinbaum founded?
He founded DeRemate.com (acquired by MercadoLibre), DineroMail (sold to PayU/Naspers), ZonaJobs, ZonaProp and DeMotores (sold to Navent and other groups), Baazee.com in India (acquired by eBay) and Wabi together with The Coca-Cola Company. In 2023 he founded POK Proof of Knowledge.
What is POK Proof of Knowledge?
POK Proof of Knowledge is a platform for issuing and verifying digital credentials and micro-credentials, certified in Open Badges 3.0 by 1EdTech. It offers a free plan with unlimited issuance and paid plans with blockchain verification, and is used by more than 1,100 institutions in 19+ countries.
What did Guido Grinbaum do before founding POK?
He began his career at Unilever and PepsiCo, was CEO of La Nación Digital between 2006 and 2014 leading the newspaper’s digital transformation, joined the Coca-Cola Retail Innovation Council, and built and sold several technology companies across e-commerce, fintech and classifieds.
Start recognizing achievements with POK!
Join over 1,100 institutions already issuing verifiable digital credentials with POK. Free plan, no commitment.
