In today’s competitive manufacturing environment, U.S. buyers and engineers are constantly seeking reliable methods to produce high-performance metal components with precision and consistency. The investment casting process—trusted by leading foundries across the country—offers one of the most effective ways to achieve complex geometries, smooth finishes, and tight tolerances at a competitive cost. This guide explains why investment casting remains a preferred choice for American manufacturers and how partnering with the right foundry can make a real difference in product quality and project efficiency.
Choosing the right investment casting foundry can determine your product’s precision, lead time, and overall cost structure. U.S. buyers often prioritize suppliers with reliable process control, multi-alloy capability, and responsive engineering teams. Below are detailed profiles of 10 reputable American investment casting companies to help you evaluate which supplier best fits your technical and procurement needs.
Why Choose the Investment Casting Process to Produce Metal Castings?
Investment casting, also known as the lost-wax casting process, is a highly precise manufacturing method used by many professional investment casting foundries to produce complex metal parts. It allows for the creation of components with intricate details, smooth surfaces, and tight tolerances that cannot be easily achieved through traditional sand casting or machining.
Leading investment casting foundries in the U.S. utilize this process to deliver near-net-shape castings that require minimal machining, reducing both production time and material waste. For buyers, this means faster delivery, more consistent quality, and lower overall cost—especially when sourcing parts that demand precision and durability.
The investment casting process is compatible with a wide range of ferrous and non-ferrous alloys such as stainless steel, carbon steel, aluminum, and bronze. This versatility makes it ideal for applications in aerospace, automotive, energy, defense, and medical industries, where performance and accuracy are critical.
Partnering with an experienced investment casting foundry gives users additional advantages:
- Professional design assistance and pattern engineering
- Advanced melting, pouring, and heat treatment capabilities
- Comprehensive inspection, machining, and finishing services
- Strict quality control and material traceability
- Flexible order volumes for prototypes or full-scale production
In summary, choosing the investment casting process—especially when working with a qualified foundry—ensures that your metal components meet the highest standards of precision, consistency, and performance. For U.S. buyers seeking reliable suppliers, investment casting foundries offer a proven path to achieving both technical excellence and cost efficiency in metal casting production.
1. Stainless Foundry & Engineering
Established: 1946
Headquarters: Milwaukee, WI, USA
Main Products & Services: Precision investment castings and sand castings; more than 250 alloys including stainless, duplex, nickel, and cobalt; CNC machining, heat treatment, and NDT inspection.
Company Overview: Stainless Foundry & Engineering (SFE) combines the versatility of investment casting with the robustness of sand casting, enabling customers to source prototypes and large-scale parts from one partner. Their investment casting division specializes in near-net-shape parts with tight tolerances and fine surface finishes, supporting industries such as aerospace, energy, defense, and food processing. SFE’s metallurgical lab and engineering support allow buyers to refine designs for manufacturability, while their AS9100 and ISO certifications assure consistent quality. For U.S. procurement teams seeking both engineering collaboration and dependable delivery, SFE offers a balanced solution between precision and production scale.
2. Barron Industries
Established: 1983
Headquarters: Oxford, MI, USA
Main Products & Services: Precision investment castings in ferrous and non-ferrous alloys; CNC machining, heat treating, and assembly; 3D printed wax patterns and simulation-based DFM analysis.
Company Overview: Barron Industries is known for transforming complex, multi-part assemblies into single-piece precision investment castings that reduce cost and weight. Their expertise in aluminum, stainless, and carbon steels enables them to serve high-value sectors like aerospace, defense, and automotive. The company offers complete engineering support — from 3D modeling and rapid prototyping to finishing and NDT. Buyers benefit from Barron’s “concept-to-completion” capability, ensuring shorter lead times, tighter control, and lower total cost of ownership. For users seeking a reliable foundry partner that combines innovation with traceable production, Barron stands out as a proven supplier.
3. American Casting Company
Established: 1974
Headquarters: Hollister, CA, USA
Main Products & Services: Precision investment castings using stainless, cobalt, and nickel-based superalloys; vacuum and air induction melting; in-house finishing and short lead-time production.
Company Overview: American Casting Company focuses on precision investment casting for demanding applications in aerospace, medical, semiconductor, and industrial equipment sectors. Their foundry offers both vacuum and air melt capabilities, ensuring superior metallurgical integrity for corrosion- and heat-resistant alloys. Buyers value their lean production model, which shortens cycle times from tooling to final part delivery. With AS9100 and ISO 9001 certifications, ACC ensures full traceability and repeatable quality. For U.S. companies requiring high-tolerance, small-to-medium batch production with strong engineering collaboration, American Casting Company offers a flexible and reliable solution.
4. MetalTek International
Established: 1999
Headquarters: Waukesha, WI, USA
Main Products & Services: Investment casting (vacuum & air melt), sand and centrifugal casting, heat treating, and metallurgical testing for high-temperature and corrosion-resistant alloys.
Company Overview: MetalTek International operates multiple foundries across the U.S., including Wisconsin Investcast — a division dedicated to precision investment casting. The company pours specialty alloys for severe environments, including Inconel, Hastelloy, and heat-resistant stainless steels. With advanced metallurgical engineering and internal labs, MetalTek supports OEMs in defense, petrochemical, turbine, and power generation sectors. Buyers can expect consistent mechanical properties, low porosity, and excellent surface finishes. For users sourcing critical cast components that must perform under high stress or temperature, MetalTek provides engineering reliability and global-scale production resources.
5. IPC Foundry Group
Established: 1980
Headquarters: Lindon, UT, USA
Main Products & Services: Precision investment castings in stainless, tool, and nickel alloys; rapid prototyping, domestic onshoring, and machining/finishing through U.S. partners.
Company Overview: IPC Foundry Group operates a network of domestic investment casting facilities focused on speed, flexibility, and quality. They leverage automated wax injection, precision shell-building, and real-time process control to ensure consistent results. The company emphasizes quick turnaround for prototype and production runs, appealing to buyers who need local manufacturing with responsive engineering support. IPC’s domestic footprint reduces shipping times, simplifies communication, and minimizes offshore supply risks — making them a smart choice for procurement teams prioritizing agility and U.S.-based sourcing.
6. Kormax
Established: 1947
Headquarters: Schaumburg, IL
Main Products & Services: Precision investment castings in stainless steel, bronze, and cast iron; machining, heat treatment, and full finishing solutions.
Company Overview: Kormax has been serving the metal casting industry for more than seven decades, offering advanced investment casting (lost-wax) services for customers who demand high accuracy and superior surface finishes. The company is known for its expertise in complex part geometries and its ability to produce castings that require minimal post-processing. Kormax integrates pattern design, mold production, and precision machining in-house, ensuring full control over quality and cost efficiency. Buyers in the U.S. who are seeking consistent, tight-tolerance cast components for industrial, mechanical, and energy applications will find Kormax a trusted long-term partner with strong technical support and on-time delivery.
7. Franklin Precision Castings
Established: 1985
Headquarters: Franklin, PA
Main Products & Services: Investment castings in stainless steel, nickel, cobalt, and bronze alloys; in-house pattern tooling, machining, and inspection services.
Company Overview: Franklin Precision Castings is an ISO-certified foundry offering high-quality investment casting solutions tailored for aerospace, automotive, and industrial markets. Their foundry uses advanced shell molding and precision melting technologies to produce parts with intricate details and repeatable accuracy. For buyers, Franklin’s key advantage lies in its complete in-house capabilities—from pattern design to machining—which helps reduce lead times and ensure process consistency. The company also provides engineering assistance for design optimization, allowing customers to replace multi-piece assemblies with single investment-cast components that improve performance and reduce cost. Their combination of material expertise and responsive customer service makes them a reliable choice for U.S. procurement teams focused on quality and efficiency.
8. RLM Industries
Established: 1975
Headquarters: Oxford, MI
Main Products & Services: Precision investment casting, prototyping, and short-run production in aluminum, bronze, and steel alloys.
Company Overview: RLM Industries has built its reputation on providing highly accurate investment castings for complex industrial components. Their foundry offers both prototype and production services, giving buyers flexibility to test and refine designs before scaling up. RLM’s engineers work closely with customers to ensure that every casting meets functional, dimensional, and metallurgical standards. They support multiple industries including automotive, defense, and medical, where precision and reliability are critical. For sourcing professionals, RLM stands out for its collaborative approach, quick turnaround, and consistent adherence to quality standards—ideal for projects requiring design consultation and precision production in moderate volumes.
9. Alcon Industries, Inc.
Established: 1978
Headquarters: Cleveland, OH
Main Products & Services: Investment castings in heat- and corrosion-resistant alloys; custom components for furnaces, pumps, and power systems.
Company Overview: Alcon Industries focuses on high-performance investment casting solutions for demanding industrial applications. The company specializes in heat-resistant and corrosion-resistant alloys designed to withstand harsh environments such as furnaces, power plants, and chemical processing systems. Its investment casting process allows for precise, net-shape production of parts that maintain structural integrity under extreme temperatures and pressure. Buyers benefit from Alcon’s ability to deliver small to medium production runs, detailed metallurgical expertise, and flexible engineering support. For U.S. customers looking for durable cast components that perform reliably in high-stress conditions, Alcon offers a strong balance between material innovation and precision manufacturing.
10. Intercast Inc
Established: 1949
Headquarters: McAllen, TX
Main Products & Services: Precision investment castings in stainless and specialty steels; full inspection, machining, and finishing services.
Company Overview: Intercast Inc provides complete investment casting solutions with a strong emphasis on precision, consistency, and reliability. The company serves industries such as aerospace, defense, oil & gas, and energy, where dimensional accuracy and metallurgical performance are vital. Intercast combines decades of foundry experience with modern casting technologies to achieve consistent surface finishes and complex geometries. Their integrated quality inspection, non-destructive testing, and machining capabilities reduce supply chain complexity for buyers. For U.S. procurement teams seeking a domestic foundry partner that guarantees repeatable performance, quick turnaround, and strong technical communication, Intercast is a dependable option for both prototype and production-scale casting projects.
Buyer Tips: Choosing the Right Investment Casting Supplier
- Alloy Compatibility: Verify the foundry can pour your required alloy and handle your part size.
- Certifications: Look for ISO 9001, AS9100, or NADCAP credentials for critical parts.
- Vertical Integration: In-house machining, heat treating, and testing can reduce costs and lead time.
- Communication: Prefer suppliers offering DFM support and responsive quoting processes.
- Lead Time: Ask for typical turnaround from tooling to first article to manage your schedule.
These U.S. investment casting foundries demonstrate diverse strengths — from quick-turn prototypes to heavy-duty, certified castings for aerospace and energy sectors. Buyers should match foundry capability with application needs, considering alloy type, dimensional accuracy, and project volume to achieve the most efficient sourcing outcome.
Choosing the Right Investment Casting Partner
For U.S. companies that demand precision, consistency, and cost efficiency, investment casting continues to be one of the most versatile and reliable metal-forming processes. By collaborating with an experienced investment casting foundry, buyers gain access to advanced engineering support, high-quality alloys, and streamlined production that reduces risk and maximizes value. Whether you’re sourcing components for aerospace, automotive, or industrial applications, choosing a qualified foundry partner ensures your castings meet the highest standards of performance and durability. Explore top U.S. investment casting foundries, compare their capabilities, and take the first step toward improving your production efficiency and component reliability.
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