Is Texas automotive manufacturing only around assembly plants?
No. Assembly plants pull local suppliers, but listed Texas automotive manufacturers also include electronics, interiors, metalforming, and industrial feeders that ship nationally.
Listed Automotive Companies in Texas
Results are ordered alphabetically. Inclusion is based on the matching process or industry recorded on each published profile.
Specialties: Automotive SpringsMetal StampingsCustom SpringsPrecision Components
BAUMANN Springs Ltd brings over 135 years of Swiss engineering excellence to the automotive manufacturing sector, operating from their Fort Worth, Tex...
Specialties: Plastic Injection MoldingAutomotive ComponentsCustom Plastic PartsPrecision Manufacturing
Chemplast Inc is a family-owned plastic manufacturing company based in Stafford, Texas, specializing in comprehensive injection molding and precision ...
Specialties: Torque ConvertersPerformance Automotive ComponentsCustom ManufacturingTransmission Components
Circle D Specialties is a Houston, Texas-based automotive manufacturing company specializing in custom-built performance torque converters for high-pe...
Specialties: Engine ComponentsEngine Rebuild PartsValvesBearings
Enginetech Inc is a family-owned automotive parts wholesaler and distributor based in Carrollton, Texas, serving professional engine rebuilders since ...
Specialties: CNC MachiningContract ManufacturingPrecision Fabrication3D Printing
Four Points Platinum is a precision CNC machine shop based in Austin, Texas, serving the automotive industry with comprehensive manufacturing solution...
Specialties: Metal StampingAutomotive Safety ComponentsHeat TreatingE-coating
ITD Precision stands as a premier automotive precision manufacturing company based in Harlingen, Texas, with deep roots dating back to 1946. This thir...
Specialties: Precision Injection MoldingAutomotive ComponentsIATF 16949 CertifiedHigh Volume Production
Plastic Molding Technology stands as a premier manufacturing leader in El Paso, Texas, specializing in precision injection molding and thermoforming s...
Specialties: Electric VehiclesBattery ProductionAutonomous DrivingSolar Products
Tesla Inc operates as a leading automotive manufacturer and clean energy company headquartered in Austin, Texas. The company specializes in designing,...
When a Texas automotive supplier is the right plant
Texas automotive work sits around OEM and EV assembly, Dallas–Fort Worth suppliers, San Antonio truck and vehicle work, Austin electronics-adjacent components, and Gulf industrial feeders—not a single statewide corridor.
Clusters this page covers
- Dallas–Fort Worth Tier suppliers, interiors, and metalforming
- San Antonio vehicle, truck, and supplier parks
- Austin and Central Texas electronics, EV, and specialty components
- Houston and Gulf industrial feeders for castings, chemicals, and heavy parts
Selection rules
- Ask which OEM or Tier program the plant currently ships and how far the sequenced delivery radius actually reaches.
- Separate prototype or job-shop work from launch-ready production cells.
- Confirm whether tooling, coating, or assembly is on site or handed to another Texas vendor.
- Do not treat Houston industrial capacity as interchangeable with a San Antonio sequencing plant.
When to use a production supplier, a job shop, or a tooling house
An automotive manufacturer can be a production plant, a prototype shop, or a toolmaker. Those are not interchangeable awards.
| When this is the job | Use | Why |
|---|---|---|
| A released production part with PPAP, packaging, and a weekly release | Production supplier | The buyer needs process capability, containment, and launch evidence—not a one-off quote. |
| A prototype, service part, or low-volume derivative | Job shop or prototype cell | Speed and flexibility beat a production line that is booked for OEM launches. |
| A die, fixture, gauge, or assembly aid that has to run production later | Tooling house | The award is tool life and tryout, not the finished vehicle part. |
How to source this work
Use an automotive manufacturer when print, PPAP, IATF 16949 or OEM-customer requirements, launch timing, and repeat volume determine the award more than a one-off prototype quote.
Include in the RFQ
- controlled drawings, CAD, and revision level
- annual volume, release quantity, and launch date
- material, coating, and applicable OEM or IATF requirements
- PPAP, inspection, and capability-study scope
- tooling ownership, spare strategy, and packaged-delivery assumptions
Questions that separate suppliers
- Which operations stay in-house versus get subcontracted?
- What PPAP level and capability evidence can be supplied?
- How are engineering changes, containment, and line-down recoveries handled?
Questions this page can answer
When should a buyer use a Texas plant instead of a Midwest supplier?
Use Texas when the OEM, freight lane, or launch program is already in Texas or Mexico-adjacent. Use a Midwest plant when the print, tooling, or customer quality system is already established there.
How should a buyer compare automotive manufacturers?
Compare the process on the print, the quality system, current OEM or Tier work, and whether the plant can support launch and containment. Listed industry tags are a starting filter, not proof of current PPAP capability.
Which states are the strongest automotive manufacturing hubs on UNITEMFG?
Texas, Indiana, Tennessee, Kentucky, and Alabama are the first state-and-category pages to open for vehicle and supplier work. Michigan and Ohio remain important for tooling, stamping, and established Tier density.
Need Help Finding Automotive in Texas?
Our directory makes it easy to research listed manufacturing companies.