“Custom Molding Experts. Quality Without Compromise.”
From part and mold design through full-scale production, TSI delivers world-class custom engineering and injection molding solutions for the automotive, heavy truck, military, and industrial sectors. We are committed to providing the highest quality products — on time, competitively priced, and with a steadfast focus on safety, environmental responsibility, and the well-being of our team.
Custom Plastic Injection Molding. Engineered for Quality.
TSI is an award-winning Tier-1 automotive supplier specializing in custom plastic injection molding and precision-molded assemblies. Based in the USA, we deliver turnkey solutions from part and mold design to full-scale production and assembly.
Trusted by global OEMs, we support a range of industries including automotive, heavy truck, military, and industrial applications. Our advanced engineering and manufacturing capabilities ensure high-quality injection molded parts, delivered on time and at a competitive cost.
At TSI, we combine USA-based manufacturing with a commitment to quality, safety, and environmental responsibility — making us a reliable partner for your most demanding projects.
Looking for a custom molding partner you can trust? Contact TSI today.
Automotive
Heavy Truck
TSI can engineer and produce quality components for the commercial truck industry.
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Military
TSI is a tried and true manufacturer of military grade components.
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Industrial
TSI can custom design and produce parts for many industrial applications.
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Hours of Operation
Office: Monday to Thursday 7:00 am to 5:30 pm
Production: Monday to Thursday 6:00 am to 12:00 am
Receiving: Monday to Thursday 8:00 am to 3:00 pm
Shipping: Monday to Friday 7:00 am to 3:30 pm