Auth0

Auth0 achieved a $6.5 billion acquisition by Okta, the largest exit for an Argentine startup—30% higher than #1 MercadoLibre’s initial IPO valuation. Its identity platform authenticates 4 billion logins daily across 7,000 enterprise clients, 25% faster than the average authentication competitor. Despite relocating headquarters to the US, Auth0 maintains a core R&D team in Buenos Aires, employing 1,500 engineers and outperforming #3 Ualá’s employee count by 3x in technical roles.