Contract assembly and box build companies in Monterrey, 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 406 contract assembly manufacturers in the Monterrey area. 30 have researched profiles with capabilities quoted from their own websites, and 157 are confirmed to take outside orders.
Describe your part to rank these suppliers for your job:
Top 30 of 406
Researched profiles first, then by size · Updated October 15, 2026
Apodaca, Nuevo León·251+ employees·Contract manufacturer
- ✓Final assembly and box build
“MEXICO - Secondary Assembly - 2 Manufacturing Locations - Injection Molding”
General Escobedo, Nuevo León·251+ employees·Contract manufacturer
- ✓Final assembly and box build
- ~Electromechanical assembly
- ✓ISO 14001
- ✓ISO 45001
- ✓ISO 9001
“We also provide the expertise in UL approval processes for enclosures, UL powder coating, final assembly of all products, and other services at international standards.”
Apodaca, Nuevo León·251+ employees·Contract manufacturer
- ✓Final assembly and box build
- ✓IATF 16949
- ✓ISO 14001
- ✓ISO 9001
“advanced metal stamping, metal fabrication and welding, value added assembly, fuel tank manufacturing, modular assembly and Customer delivered line sequencing”
San Nicolás de los Garza, Nuevo León·251+ employees·Job shop
- ✓Final assembly and box build
“Ensamble Especializado Líneas de ensamble controladas para garantizar consistencia en cada unidad.”
San Nicolás de los Garza, Nuevo León·251+ employees·Job shop
- ✓Final assembly and box build
“Punzonado, doblez, soldadura y ensamble de piezas metálicas y componentes eléctricos y electrónicos.”
Apodaca, Nuevo León·251+ employees·Contract manufacturer
- ✓Final assembly and box build
- ~Electromechanical assembly
“from engineering to manufacturing and assembly”
General Escobedo, Nuevo León·251+ employees·Contract manufacturer
- ✓Final assembly and box build
“se procede al montaje de los componentes adicionales, como los ejes, las ruedas, los sistemas de frenado y los sistemas de suspensión.”
Guadalupe, Nuevo León·101–250 employees·Contract manufacturer
- ✓Final assembly and box build
“Assembly-heavy production with dedicated space for complex builds”
San Nicolás de los Garza, Nuevo León·101–250 employees·Job shop
- ✓Final assembly and box build
- ~Electromechanical assembly
“Ensamble”
Santa Catarina, Nuevo León·101–250 employees·Job shop
- ✓Final assembly and box build
- ✓ISO 9001
“•Assembly & decorating parts”
Apodaca, Nuevo León·101–250 employees·Job shop
- ✓Electromechanical assembly
- ✓ISO 9001
- ✓UL
“We manufacture built-to-order power cords and assemblies to OEM's, contract manufacturers and other high-volume users.”
Apodaca, Nuevo León·101–250 employees·Contract manufacturer
- ✓Final assembly and box build
- ✓ISO 9001
“With our cable assembly and box build facility in Monterrey, Mexico, Nortech Systems ensures production runs smoothly thanks to a highly trained production staff that provides best…”
Apodaca, Nuevo León·101–250 employees·Job shop
- ~Final assembly and box build
- ✓Electromechanical assembly
“Comenzaron a fabricar y ensamblar estas pantallas en colaboración con múltiples clientes”
San Pedro Garza García, Nuevo León·51–100 employees·Job shop
- ✓Final assembly and box build
- ✓ISO 9001
“Ofrecemos servicios de ensamble de piezas, integrando componentes para entregar productos completos listos para su aplicación.”
Santa Catarina, Nuevo León·51–100 employees·Job shop
- ✓Final assembly and box build
“We also focus on project management, customer service, detailed engineering revisions, logistics, Assembly and fine-tuned conventional and CNC fixture manufacturing.”
Apodaca, Nuevo León·31–50 employees·Job shop
- ✓Electromechanical assembly
“Somos una empresa dedicada a la fabricación e integración de equipos de transmisión, distribución y control de la energía eléctrica, brindando un excelente servicio y soporte técni…”
Apodaca, Nuevo León·31–50 employees·Job shop
- ~Final assembly and box build
- ✓Electromechanical assembly
“Manufacture of Industrial Control Cabinets.”
Guadalupe, Nuevo León·11–30 employees·Job shop
- ✓Final assembly and box build
- ✓ISO 9001
“Contamos con la capacidad adicional del servicio de ensamblar las piezas de plástico inyectadas.”
Monterrey, Nuevo León·11–30 employees·Contract manufacturer
- ✓Final assembly and box build
“Recibe tu producto listo para vender. Nos encargamos del ensamble, empaque y preparación final.”
San Nicolás de los Garza, Nuevo León·11–30 employees·Contract manufacturer
- ✓Final assembly and box build
“Desde la inyección de componentes hasta el ensamble de productos terminados”
General Escobedo, Nuevo León·11–30 employees·Contract manufacturer
- ✓Electromechanical assembly
“Ensamble”
Monterrey, Nuevo León·11–30 employees·Private label
- ✓Final assembly and box build
“combina con nuevas tecnologías en procesos de Pintura de polvo, Troquelado y ensamble de piezas”
Monterrey, Nuevo León·11–30 employees·Job shop
- ✓Final assembly and box build
- ✓ISO 9001
“Integración de componentes, inserción de herrajes, remachado, adhesivos, preparación superficial y acabados.”
Apodaca, Nuevo León·11–30 employees·Contract manufacturer
- ✓Electromechanical assembly
- ✓ISO 9001
- ✓UL
“Newland specializes in assembly projects that require a high level of precision and skilled expertise from its labor force. It can procure or manufacture the parts or sub assemblie…”
Santa Catarina, Nuevo León·11–30 employees·Job shop
- ✓Final assembly and box build
- ~Electromechanical assembly
“HARDSTONE es un proveedor de soluciones de ingeniería en automatización industrial, para procesos de ensamble, inspección y pruebas finales de validación; probadoras de fuga y fluj…”
Monterrey, Nuevo León·11–30 employees·Job shop
- ✓Final assembly and box build
“Ofrecemos servicios de ensamble a través de procesos permanentes como soldadura y remachado”
Guadalupe, Nuevo León·11–30 employees·Contract manufacturer
- ✓Electromechanical assembly
- ✓ISO 9001
“Shelmex builds custom wire harnesses, cable and electronic assemblies, and complete products through contract manufacturing.”
Santa Catarina, Nuevo León·11–30 employees·Contract manufacturer
- ✓Final assembly and box build
- ✓ISO 9001
“Our staff can build complex products efficiently through assembly lines and/or cells using our lean methodologies.”
Guadalupe, Nuevo León·251+ employees·Industrial supplier
- ✓Final assembly and box build
- ~Electromechanical assembly
“SMD (surface-mounted device) assembly, final assembly and testing at the Kalos plant.”
Guadalupe, Nuevo León·251+ employees·Job shop
- ~Final assembly and box build
- ✓Other