| Researched in depth, not ranked (14), continued |
| Condumex Autoparts (Condumex Harness)34 | Automotive… | Mexico | Condumex builds automotive OEM harnesses; certificates sit behind a password. |
| Cord-Pag29 | Makes electrical… | Jesús María | Aguascalientes harness maker, but its site could not be read, so no certifications are known. |
| Electro Componentes de México JZ1 JZ235 | Harnesses… | Ciudad Juárez | Juárez appliance harness maker. No certification evidence was found. |
| Julian Electric29 | Makes wiring… | Saltillo, Mexico | Site lists IATF 16949 and ISO 14001 for Mexico, but no ISO 9001 or IPC/WHMA-A-620 claim. Its address shown is in… |
| K&S Mexicana (Sistemas de Arneses K&S)36 | Japanese harness… | Mexico | Sumitomo harness subsidiary. The source names no city and no certifications. |
| Mega Techway de México S.A. de C.V.37 | Customized wire… | Reynosa | Reynosa maker of wire harnesses and cable assemblies. Site claims ISO 9001:2015 and IATF 16949 (written as… |
| MJC Tijuana (Fabricación de arneses y servicios CNC en Tijuana)38 | Wire harness… | Tijuana | Tijuana wire harness maker with ISO 9001:2015 on its site. Site does not mention IPC/WHMA-A-620 on the pages… |
| Phillips Industries (Coahuila plant)36 | Opened a harness… | Mexico | Coahuila heavy-truck harness plant. Only a news source, with no certifications. |
| Fit the brief, not researched (4) |
| AEES INC39 | Describes itself… | Ciudad Juárez | Harness maker in Ciudad Juárez, but no homepage was given and we could not open any page of its own. No… |
| Automotive Wire Harnesses de Mexico, S.A. de C.V.40 | Listed… | Monterrey | No website. The only source is a Monterrey directory listing with no certifications or capabilities. Cannot confirm either… |
| Ensamble de Cables y Componentes, S.A. de C.V.40 | Listed… | Monterrey | No website. Directory listing only, with no products or certifications named. Cannot confirm either must-have. |
| Tornik/EMS Mexico41 | | Mexico | Custom cable assembly maker. The page read does not state a Mexico plant or city, and names no ISO 9001 or… |
| Did not fit the brief (9) |
| Arcosa Arneses y Conexiones42 | Harnesses… | Tijuana | No website. Only a directory listing, with IMMEX status shown as suspended, which may be stale. No certification… |
| ARPLA29 | Specialist maker… | Coacalco | Site says it makes harnesses and power cords for appliances and commercial refrigeration. It claims UL file numbers… |
| Conductores Tecnológicos de Ciudad Juárez (ConTec I)43 | Automotive… | Ciudad Juárez | No website to open. The listing calls it a seller, not a maker. No A-620 or ISO 9001 evidence. |
| Delphi Packard Electric (Delphi Automotive Systems, now Aptiv)30 | Harness plants… | Ciudad Juárez | No website to open. Source is a 2001 study, and no A-620 or ISO 9001 evidence was found for these plants. |
| EIS de México44 | Supplies… | Zapopan | No website to open. Supplies harnesses, but no A-620 or ISO 9001 evidence was found. |
| PEDSA (Productos Eléctricos Diversificados S.A.)30 | Electrical harness… | Ciudad Juárez | No website to open and no A-620 or ISO 9001 evidence in the lead’s data. Source is a 2001 article, so it may be out of… |
| PEEMMSA44 | Describes itself… | Mexico | No website to open. Describes itself as a supplier of harnesses, but no A-620 or ISO 9001 evidence was found. |