What I Learned Building a Loan-Comparison Site in Mexico (and Vetting 66 Lenders)

I run a fintech comparison site in Mexico, and the part of the job nobody warns you about is verification. When we started, I assumed comparing lenders meant comparing rates. It actually means confirming, one entity at a time, who you are even dealing with.

The Mexican market is full of app-based lenders with confident marketing and thin disclosure. Confiable, seguro, verificado — these words appear everywhere and mean nothing on their own. So we built a process: for every lender on the site, identify the legal entity, find it in the public registry (SIPRES for CONDUSEF-supervised SOFOMs, or the PROFECO consumer-protection framework for others), and only then publish anything about cost.

The surprises were constant. Brands we assumed were CONDUSEF-regulated SOFOMs turned out to be PROFECO-supervised instead, a real distinction for borrowers. One “lender” was actually a comparison platform reselling traffic. A sister-brand pair traced back to a single entity. Every one of those was a correction we would have shipped wrong if we had trusted the marketing copy.

The lesson for anyone building in regulated or YMYL niches: your moat is not design or speed, it is the verification work nobody else wants to do. We made registry-checking the core of the product. If you are curious how we present it, the site is Préstamo Ya.

Happy to compare notes with anyone building in fintech comparison or other YMYL spaces, the verification tooling problem is real and underbuilt.