Listed Mechanical Assembly Companies in Missouri

Results are ordered alphabetically. Inclusion is based on the matching process or industry recorded on each published profile.

Crown Packaging Corp.

📍 St. Louis, MO Est. 1969
Specialties: Packaging suppliesPackaging equipmentIndustrial packaging solutions

Emerson Electric Co

📍 St. Louis, MO Est. 1890
Specialties: Automation SolutionsIndustrial EquipmentCommercial SolutionsProcess Control

Essex Industries

📍 St. Louis, MO Est. 1947
Specialties: Platform controlsAircraft componentsEmergency breathing equipmentLiquid oxygen equipment

Four Process Ltd.

📍 Valley Park, MO Est. 1974
Specialties: Precision injection moldingInsert moldingOver moldingCustom inventory management

Gateway Door & Contracting

📍 Saint Charles, MO
Specialties: Garage door installationGarage door openersCommercial garage doorsGarage door repair services

INX Medical

📍 Chesterfield, MO
Specialties: General surgery devicesColon-rectal surgical instrumentsGastrointestinal medical devices

Kansas City Structural Steel Inc.

📍 Kansas City, MO Est. 1995
Specialties: Structural steel fabricationSteel trussesCommercial building componentsCustom steel structures

Koller-Craft

📍 Fenton, MO Est. 1941
Specialties: Injection molded packagingContainersCapsClosures

Labconco Corporation

📍 Kansas City, MO Est. 1925
Specialties: Chemical fume hoodsBiological safety cabinetsLaboratory ventilation systemsForensic enclosures

Mechanical Assembly supplier landscape in Missouri

UNITEMFG currently matches 22 published supplier profiles to Mechanical Assembly in Missouri, spanning 12 listed cities. The largest concentrations in the directory are St. Louis (7 suppliers), Saint Charles (3 suppliers), and Fenton (2 suppliers). This is a directory-derived view of available suppliers, not an estimate of the entire state market.

The capabilities most often named on matching profiles are CNC machining (2 profiles), Structural assemblies (2 profiles), and Aerospace assemblies (1 profile). The supplier set spans Aerospace (4 profiles), Construction (3 profiles), and Healthcare (3 profiles) among its most represented industries. Frequently listed material experience includes Copper (1 profile), Electronics (1 profile), and Plastics (1 profile). Published certification fields most often mention ISO 14001 (1 profile), ISO 9001 (1 profile), and ISO/TS 16949 (1 profile).

Because the matching profiles span 12 cities, buyers can compare several local supplier markets rather than treating one metro as representative of the state. Use the listed capabilities as a first-pass filter, then require each shortlisted supplier to confirm that the relevant process is performed in-house, on suitable equipment, at the required scale.

Supplier locations

  • St. Louis7
  • Saint Charles3
  • Fenton2
  • Kansas City2
  • Chesterfield1
  • Grandview1
  • Hazelwood1
  • Maysville1

Commonly listed capabilities

  • CNC machining2
  • Structural assemblies2
  • Aerospace assemblies1
  • Aerospace brackets1
  • Agricultural building trusses1
  • Aircraft components1
  • Aluminum mold manufacturing1
  • Assembly1

Industries represented

  • Aerospace4
  • Construction3
  • Healthcare3
  • Machinery3
  • Other3
  • Plastics3
  • Consumer Goods2
  • Textiles1

Materials and credentials listed

  • Copper1
  • Electronics1
  • Plastics1
  • Steel1
  • ISO 140011
  • ISO 90011
  • ISO/TS 169491

This Missouri market view is calculated from published UNITEMFG profiles whose process labels map to the Mechanical Assembly cluster. Counts describe directory coverage, not independently audited capacity, quality, or availability.

How to source Mechanical Assembly in Missouri

Use assembly suppliers when a buyer needs controlled integration of purchased or manufactured components, documented work instructions, testing, and traceable finished units.

Include in the RFQ

  • bill of materials and approved sources
  • assembly drawings and work instructions
  • buyer-supplied versus supplier-supplied components
  • test, inspection, and serialization requirements
  • forecast, lot size, packaging, and delivery schedule

Questions that separate suppliers

  • How are revisions and component substitutions controlled?
  • What testing and traceability are captured per unit or lot?
  • Can material planning and supplier management be included?

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