Sebastián Mejía
Co-founder of Rappi, Colombia’s super-app and one of the region’s defining startups, and among the most active founder-angels of the post-Rappi generation.

Track record
Rappi
Co-founded Rappi alongside Simón Borrero and Felipe Villamarín, growing it from a Bogotá delivery app into a multi-country "super-app" spanning delivery, payments and financial services — one of the most valuable and widely recognized startups to come out of Colombia.
The Rappi alumni network
Rappi’s scale and rapid growth produced a large number of early employees who went on to found or personally back other Colombian and regional startups, similar in pattern to MercadoLibre’s alumni effect in Argentina and Nubank’s in Brazil.
Frequent early-round presence
Publicly and repeatedly reported as one of the more active founder-angels backing early rounds of Latin American startups in the years following Rappi’s rapid growth phase.
How he invests
Mejía’s public angel activity is most consistently associated with early-stage Colombian and broader LATAM startups, consistent with his own founder background and network — though a complete, itemized personal portfolio is not comprehensively public.
As with other founder-angels on this list, his credibility as a co-investor is closely tied to his own operating track record building and scaling Rappi through hypergrowth, rather than any formal fund structure.
What an angel can take from this
Capital intensity changes what your cheque buys
Companies that build logistics or delivery networks consume capital at a rate that early investors rarely model. An angel entering at seed in a capital-intensive business should assume heavy dilution across many subsequent rounds, and should run the dilution calculator forward several rounds before deciding the entry price is attractive.
Regional expansion is a sequence of separate businesses
Expanding across Latin America is not one market entry but several, each with its own regulator, payment rails, labour rules and competitors. When a founder presents a regional plan, the useful question is which single market is currently profitable and what evidence exists that the next one behaves like it.