The maquiladora belt is a US supply chain — and Apollo can't see it
Mexico runs one of the most concentrated industrial corridors in the Americas. INEGI counts about 6 million economic units, of which roughly 1.1 million are formally registered companies. Maquiladoras and IMMEX-program firms in the Bajío and along the northern border feed Tier-1 automotive, aerospace and electronics OEMs across the US. A Tier-2 supplier in Querétaro or a CKD assembly plant in Ciudad Juárez is part of a Detroit, Austin or Phoenix supply chain — but its director sits in the Mexican RPC, its tax identifier is the RFC, and its sector code is SCIAN 2018.
Apollo, ZoomInfo and Cognism aggregate US-centric LinkedIn, in English. They cover CDMX FinServ towers reasonably, and the 200-person Tier-2 supplier badly. AtlasForgeX inverts the source order — Mexican primary registers first, then bilingual website enrichment for the English-language version that maquiladoras typically run for their US customers.
Free 1-day trialThe corridor, from Frontera Norte to the Bajío to CDMX
Mexican B2B segmentation is fundamentally geographic. The corridor model — north, centre-west, south — captures more economic substance than a national city ranking ever does.
Border manufacturing belt
Maquiladoras, IMMEX-program assembly, customs and logistics. Ciudad Juárez, Tijuana, Reynosa, Matamoros, Nuevo Laredo. Operates substantially in English for US procurement.
SCIAN 31–33 · IMMEX · automotive · electronicsIndustrial heartland
Querétaro, Aguascalientes, Guanajuato, San Luis Potosí, Nuevo León. Tier-1 and Tier-2 automotive, aerospace, white goods. The fastest-growing manufacturing geography in North America.
SCIAN 336 · 333 · 326 · automotive · aerospaceService economy triangle
Mexico City for finance and government, Guadalajara for tech and Silicon Valley nearshoring, Monterrey for industrial holdings and B2B services.
SCIAN 52 · 54 · 51 · financial · tech · professionalAtlasForgeX exposes corridor + state + SCIAN as a combined filter. A typical query: SCIAN 336 (transport equipment manufacturing) · Bajío corridor · IMMEX registered · 50–500 IMSS-registered employees. That's a tight segment Apollo cannot reproduce because IMMEX status and SCIAN 2018 are not inputs to its data model.
Legal forms — what the RPC actually returns
// S.A. de C.V.
Sociedad Anónima de Capital Variable — by far the most common limited-liability form. Most maquiladoras, Tier-1 and Tier-2 industrial operators run as S.A. de C.V. Variable capital structure allows quick capital adjustments without re-registration.
// S. de R.L. de C.V.
Sociedad de Responsabilidad Limitada — closer to a US LLC. Common for smaller industrial and professional-services firms, and frequently used by US parents for Mexican subsidiaries because it can be a pass-through under US tax election.
// SAPI
Sociedad Anónima Promotora de Inversión — the investment-promotion variant, designed for VC and private-equity capital structures. Common in the tech corridor (CDMX, Guadalajara, Monterrey) for funded startups.
// S. Cooperativa
Cooperative form — production cooperatives and consumer cooperatives, particularly in agribusiness (Sinaloa, Sonora, Jalisco) and some service sectors. Lower B2B prospecting density but a distinct decision-making structure.
LFPDPPP and the legal picture
// Personal data — LFPDPPP and INAI
The Ley Federal de Protección de Datos Personales en Posesión de los Particulares (LFPDPPP, 2010) governs personal data processed by private parties. Article 10 recognises lawful processing where the data is publicly available or where the data subject has made it accessible — which applies to RPC entries, RFCs published on CFDI invoices, and contact details published on the company's own website for the relevant role.
INAI (Instituto Nacional de Transparencia, Acceso a la Información y Protección de Datos Personales) guidance is consistent with B2B direct outreach to identifiable business contacts, provided a clear opt-out mechanism and a published aviso de privacidad (privacy notice) are in place.
// PROFECO does not apply
PROFECO (Procuraduría Federal del Consumidor) is the federal consumer protection authority, with a strictly B2C remit. The Ley Federal de Protección al Consumidor it enforces does not cover B2B relationships. The relevant frameworks for Mexican B2B prospecting are LFPDPPP for personal data, the Código de Comercio for commercial relationships, and INAI guidance.
// No cross-border transfer
AtlasForgeX processes all data locally on the user's Windows machine. No cloud upload of personal data occurs — the LFPDPPP cross-border-transfer regime is structurally outside the scope.
Mexican registers, in plain English
// RPC + SIGER
The Registro Público de Comercio is maintained at state level under the Código de Comercio. The federal SIGER (Sistema Integral de Gestión Registral) portal aggregates the state RPCs. AtlasForgeX pulls company name, legal form, partners, share capital and registered address.
// RFC
The Registro Federal de Contribuyentes — the tax identifier issued by SAT. Appears on every CFDI 4.0 invoice. AtlasForgeX uses RFC cross-references to confirm active trading status and to dedupe legal-entity name variations.
// IMSS
IMSS-registered employer base — the proxy for active employee count. Combined with SCIAN, gives reliable size bands (1–10, 11–50, 51–250, 250+) without relying on LinkedIn employee-count estimates.
// SCIAN 2018 + sites + hiring
SCIAN 2018 (Mexican NACE) aligns with NAICS. Spanish and English website analysis; hiring signals from OCC Mundial, Computrabajo, Indeed.com.mx, LinkedIn Jobs MX, Bumeran.