Is there an RFC search API that can find an RFC given only the company name?
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Let me set expectations: true reverse lookup (name → RFC) with full coverage isn't available from any provider I've found, and for good reason. SAT doesn't expose a name-search endpoint, and scraping the entire RFC registry would be both impractical and legally questionable.
What IS available from some RFC search API providers on apipull.com API Hub:
- Partial RFC + name verification: If you have a partial RFC (first 3-4 characters from the company initials) plus the full name, some providers can confirm the match
- RFC enrichment: Given a valid RFC, returns full company details — this is the most reliable path
- Public company databases: Some providers cross-reference RFC data with public business registries (IMSS, INFONAVIT employer records) to build searchable company directories
For your sales intelligence use case, the most practical approach is: ask your users to provide the RFC (it's on every invoice and public filing), then use an RFC search API to validate and enrich it. Trying to go name → RFC will give you poor accuracy due to name variations.
We had the same requirement for our CRM and solved it differently. Instead of searching name → RFC, we flipped the workflow: collect the RFC as early as possible in the sales process (it's in every company's email signature, letterhead, and public filings), then use an RFC search API to enrich our CRM record with the official registered name, address, and tax data.
This actually solved the duplicate detection problem too. Two records with slightly different names but the same RFC get auto-merged. The RFC becomes your unique identifier for Mexican companies, similar to how you'd use a DUNS number.
For the remaining cases where we truly don't have the RFC, we built a simple tool that generates likely RFC candidates from the company name + founding date (since RFC structure is deterministic for companies: first 3 letters of name + 6-digit founding date + homoclave). Then we validate each candidate against the RFC search API. Works about 60% of the time for well-known companies.
We're building a B2B sales intelligence platform for the Mexican market and one feature our clients keep requesting is the ability to search for a company's RFC given just their business name. The use case is straightforward: a salesperson knows the company name (e.g., "Grupo Bimbo") and wants to find their RFC to pre-fill a quote or verify they're a legitimate registered business.
I've been researching RFC search API options and I'm finding conflicting information about whether reverse lookup (name → RFC) is actually available through third-party providers. Some seem to offer it, others explicitly say it's not possible due to privacy regulations. I need clarity on what's actually achievable with current RFC search API offerings.
Our specific use cases for an RFC search API:
From a data privacy standpoint, I understand that for individuals (persona física) this type of reverse lookup would be restricted. But for companies (persona moral), their RFC is essentially public information that appears on invoices. I'm hoping RFC search API providers differentiate between individual and corporate lookups.
Our platform currently serves about 50 enterprise clients in Mexico, each with sales teams of 10-30 people. We estimate around 5,000-10,000 RFC search API queries monthly once launched. Growth could be significant if the feature works well.
I've seen several providers listed on apipull.com API Hub but it's unclear which ones support name-based search versus only RFC-input lookup. Has anyone implemented this kind of company-name-to-RFC search functionality? What were the limitations and accuracy rates?