Agalma Sourcing

Contract assembly and box build companies in San Luis Potosí, Mexico

Plants that assemble finished products from your parts and subassemblies: box build, electromechanical assembly, kitting, and packout. Profiles say whether they buy the parts (turnkey) or use yours (consigned). We list 109 contract assembly manufacturers in San Luis Potosí. 8 have researched profiles with capabilities quoted from their own websites, and 36 are confirmed to take outside orders.

Describe your part to rank these suppliers for your job:

Top 30 of 109

Researched profiles first, then by size · Updated October 15, 2026

  1. Prodamex

    Mexquitic de Carmona, San Luis Potosí·251+ employees·Contract manufacturer

    • ✓Electromechanical assembly

    “Electromechanical Assemblies and Systems”

    volex.comTakes outside ordersProfile →
  2. NYX Mexico Plastics

    Villa de Reyes, San Luis Potosí·251+ employees·Contract manufacturer

    • ✓Final assembly and box build

    “We specialize in plastics processing and assembly, with two-shot and vacuum molding capabilities.”

    nyxinc.comTakes outside ordersProfile →
  3. Getab

    San Luis Potosí, San Luis Potosí·31–50 employees·Job shop

    • ✓Final assembly and box build
    • ✓Electromechanical assembly

    “manufactura de tableros eléctricos (ensamble, alambrado y pruebas eléctricas), en productos de baja, media, alta tensión; así como control, automatización y protección de equipos.”

    getab.com.mxTakes outside ordersProfile →
  4. Techno State

    San Luis Potosí, San Luis Potosí·31–50 employees·Job shop

    • ✓Final assembly and box build
    • ✓IATF 16949
    • ✓ISO 9001

    “Desarrollamos estaciones de ensamble especializadas, como atornillado y clampeado, diseñadas exclusivamente para las piezas y especificaciones de cada cliente.”

    technostatemx.comTakes outside ordersProfile →
  5. Divermetal Internacional

    San Luis Potosí, San Luis Potosí·11–30 employees·Contract manufacturer

    • ✓Final assembly and box build

    “Fabricación y ensamble de maquinaria y equipo”

    divermetal.comTakes outside ordersProfile →
  6. Advanced Assembly Products Mexico

    Villa de Reyes, San Luis Potosí·11–30 employees·Contract manufacturer

    • ✓Final assembly and box build
    • ✓IATF 16949
    • ✓ISO 14001

    “supplying OEMs and Tier One automotive suppliers worldwide with superior metal stampings, weldments, and mechanical assemblies.”

    aapincorp.comTakes outside ordersProfile →
  7. Sussek Metal Working Solutions

    San Luis Potosí, San Luis Potosí·11–30 employees·Job shop

    • ✓Final assembly and box build

    “In addition to our machining capabilities we offer customizable packaging, hydraulic, electric, and pneumatic assembly to meet our customer's needs.”

    sussek.comTakes outside ordersProfile →
  8. Plastivaloire Mexico

    Villa de Pozos SLP, San Luis Potosí·101–250 employees·Industrial supplier

    • ✓Final assembly and box build

    “SPÉCIFICITÉS Injection Décoration Assemblage”

    groupe-plastivaloire.comProfile →
  9. Tighitco

    San Luis Potosí, San Luis Potosí·251+ employees·Contract manufacturer

    • ~Final assembly and box build
    • ✓AS9100
    • ✓ISO 9001
    tighitco.comTakes outside ordersProfile →
  10. Kwang JIN SLP México

    Villa de Reyes, San Luis Potosí·251+ employees·Industrial supplier

    • ~Electromechanical assembly
    kwangjin-kr.comTakes outside ordersProfile →
  11. Durr Universal

    San Luis Potosí, San Luis Potosí·251+ employees·Contract manufacturer

    • ~Final assembly and box build
    • ~Electromechanical assembly
    durr-universal.comTakes outside ordersProfile →
  12. Zoppas Industries de Mexico

    San Luis Potosí, San Luis Potosí·251+ employees·Job shop

    • ~Final assembly and box build
    • ~Electromechanical assembly
    zoppasindustries.comTakes outside ordersProfile →
  13. Siix EMS Mexico

    Villa de Pozos SLP, San Luis Potosí·251+ employees·Contract manufacturer

    • ~Electromechanical assembly
    • ✓IATF 16949
    • ✓ISO 14001
    • ✓ISO 9001
    siix.co.jpTakes outside ordersProfile →
  14. Motherson Techno Precision Mexico

    Villa de Reyes, San Luis Potosí·251+ employees·Job shop

    • ~Electromechanical assembly
    motherson.comTakes outside ordersProfile →
  15. Ronal SAN Luis

    Villa de Reyes, San Luis Potosí·251+ employees·Industrial supplier

    • ~Electromechanical assembly
    ronal-wheels.mxTakes outside ordersProfile →
  16. Asiaway Automotive Components Mexico

    San Luis Potosí, San Luis Potosí·251+ employees·Contract manufacturer

    • ~Final assembly and box build
    • ~Electromechanical assembly
    asiawaygroup.comTakes outside ordersProfile →
  17. Productos y Servicio del Centro

    San Luis Potosí, San Luis Potosí·101–250 employees·Job shop

    • ~Final assembly and box build
    • ✓ISO 9001
    pysc.com.mxTakes outside ordersProfile →
  18. Taxan SWE Mexicomanufacturing

    San Luis Potosí, San Luis Potosí·101–250 employees·Contract manufacturer

    • ~Final assembly and box build
    • ~Electromechanical assembly
    • ✓ISO 9001
    taxan-swe.comTakes outside ordersProfile →
  19. AC Fabrication

    San Luis Potosí, San Luis Potosí·51–100 employees·Contract manufacturer

    • ~Final assembly and box build
    • ~Electromechanical assembly
    acfabrication.comTakes outside ordersProfile →
  20. Paviseñales

    Soledad de Graciano Sánchez, San Luis Potosí·51–100 employees·Job shop

    • ~Final assembly and box build
    pavisenales.com.mxTakes outside ordersProfile →
  21. G&W de Mexico

    San Luis Potosí, San Luis Potosí·51–100 employees·Industrial supplier

    • ~Final assembly and box build
    es.gwelectric.comTakes outside ordersProfile →
  22. Stark Manufacturing MexicanaNot yet researched

    San Luis Potosí, San Luis Potosí·51–100 employees·Contract manufacturer

    • ~Final assembly and box build
    • ~Electromechanical assembly
    starkmfg.comTakes outside ordersProfile →
  23. Evolución en Moldes

    Soledad de Graciano Sánchez, San Luis Potosí·31–50 employees·Job shop

    • ~Final assembly and box build
    • ~Electromechanical assembly
    • ✓ISO 9001
    evolucionenmoldes.mxTakes outside ordersProfile →
  24. UPG DM

    San Luis Potosí, San Luis Potosí·31–50 employees·Industrial supplier

    • ~Final assembly and box build
    • ~Electromechanical assembly
    metlx.comTakes outside ordersProfile →
  25. Carrocerias Kamixo

    Soledad de Graciano Sánchez, San Luis Potosí·31–50 employees·Job shop

    • ~Final assembly and box build
    • ✓NOM
    carroceriaskamixo.comTakes outside ordersProfile →
  26. Aplintec

    Villa de Pozos SLP, San Luis Potosí·31–50 employees·Job shop

    • ~Final assembly and box build
    aplintec.com.mxTakes outside ordersProfile →
  27. Inoxidables Roman

    Soledad de Graciano Sánchez, San Luis Potosí·11–30 employees·Job shop

    • ~Final assembly and box build
    • ~Electromechanical assembly
    inoxroman5.webnode.esTakes outside ordersProfile →
  28. Afimsa

    San Luis Potosí, San Luis Potosí·11–30 employees·Job shop

    • ~Final assembly and box build
    • ✓ISO 9001
    afimsa.com.mxTakes outside ordersProfile →
  29. Best Conveyors AND Racks

    San Luis Potosí, San Luis Potosí·11–30 employees·Job shop

    • ~Final assembly and box build
    • ~Electromechanical assembly
    bestconveyors.com.mxTakes outside ordersProfile →
  30. Tskei Molding Mexico

    San Luis Potosí, San Luis Potosí·11–30 employees·Job shop

    • ~Final assembly and box build
    • ~Electromechanical assembly
    kktsk.comTakes outside ordersProfile →

79 more. Search to see suppliers ranked for your part