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Byrne & Schaefer Inc

"Creating New Solutions To Old Problems."

About Us

Founded in 1949, Byrne & Schaefer, Inc. has proudly served Lockport, Will County, and the greater Chicagoland area for generations. What began as a small engineering operation has grown into a trusted name in the design and manufacturing of low-inductance resistors, custom and specialty resistor solutions, and industrial-grade electrical components and assemblies for demanding applications. Backed by decades of hands-on experience, the company is built on precision manufacturing, problem-solving expertise, and a deep commitment to quality. Byrne & Schaefer, Inc. continues to deliver reliable, custom electrical solutions for industrial and commercial clients who require performance they can depend on. The company operates Monday through Friday by appointment only, ensuring focused, personalized service for every project.

Areas Served

Will County, IL | Lockport, IL | Northern Illinois | Southern Illinois | Southern Wisconsin

Languages Spoken

English
Spanish

What We Offer

Our Specialties include:

Byrne & Schaefer, Inc. specializes in the design and manufacturing of low-inductance resistors and other unusual, custom-made resistor solutions, along with rugged, industrial-grade electrical components and assemblies built for demanding applications. With more than 50 years of experience, the company has earned a reputation for solving complex electrical challenges with precision, reliability, and expert craftsmanship. Their team works closely with customers to produce purpose-built components that meet exact performance requirements, while offering invoicing on all orders to support flexible purchasing and long-term industrial partnerships.

Our Services include:

Industrial Electrical Engineering & Custom Design: Byrne & Schaefer, Inc. provides specialized industrial electrical engineering services backed by more than 50 years of hands-on experience. Their team designs and develops custom electrical solutions tailored to complex industrial applications, from concept through final production. Every project is engineered for performance, durability, and long-term reliability.
Custom Electrical Components, Assemblies & Systems: The company manufactures a wide range of industrial-grade electrical components, complete systems, and assemblies built to exact specifications. This includes custom electrical parts, integrated assemblies, testing machines, and specialized systems designed for demanding environments where standard components simply won’t suffice.
Low-Inductance & Specialty Resistors: Byrne & Schaefer, Inc. is known for producing low-inductance resistors and other uncommon, custom-made resistor solutions. These components are engineered for precise performance in applications requiring tight tolerances, high reliability, and unique electrical characteristics that off-the-shelf products cannot deliver.
Manufacturing & Quality Assurance: All products are proudly made in the USA and manufactured to industrial-grade standards. As a family-owned, disability-owned business, Byrne & Schaefer, Inc. maintains strict quality control throughout the manufacturing process to ensure consistency, performance, and durability across every order.
Global Supply & Order Flexibility
Serving customers worldwide,: Byrne & Schaefer, Inc. operates as a trusted global supplier of custom electrical components and systems. Invoicing is available for all orders, providing flexible purchasing options to support businesses of all sizes and industries.

Our Products include:

Specialized Electrical Filters and Power Resistors
Special Power Filter Assemblies
Power Management Units
Load Banks
Filter, Low-Inductance, Wirewound and Coil Resistors
Transit and Industrial Cab Heaters

Contact Us

Byrne & Schaefer Inc
1061 C Caton Farm Rd. Lockport, IL 60441
Phone: (815) 727-5000
Fax: (815) 727-5539
Email: orders@byrneandschaefer.com

Where To Find Us

Payment Types Accepted

Visa, MasterCard, American Express, Discover

Our Hours

Monday: 7:00 AM - 4:00 PM
Tuesday: 7:00 AM - 4:00 PM
Wednesday: 7:00 AM - 4:00 PM
Thursday: 7:00 AM - 4:00 PM
Friday: 7:00 AM - 4:00 PM

FAQ

What does Byrne & Schaefer Inc. specialize in?

We specialize in low-inductance resistors, custom-made resistors, and industrial-grade electrical components and assemblies. Our products are designed to solve complex engineering challenges.

How long has Byrne & Schaefer Inc. been in business?

We’ve been proudly serving Lockport, IL and surrounding areas since 1949, offering innovative engineering and manufacturing solutions.

Do you offer custom resistor design and manufacturing?

Yes, we provide custom solutions tailored to your specifications. Our team can engineer and manufacture resistors and components to meet unique project requirements.

What are your business hours?

We operate Monday through Friday by appointment only. Please contact us in advance to schedule a consultation or visit.

How can I contact Byrne & Schaefer Inc.?

You can reach us at (815) 727-5000 or visit our facility at 1061 C Caton Farm Rd., Lockport, IL 60441. We recommend calling ahead to arrange an appointment.

Do you offer custom electrical solutions?

Yes. Custom work is a core part of what we do. Our team works closely with customers to design and manufacture electrical components and assemblies built to exact specifications when standard, off‑the‑shelf solutions will not meet performance requirements.

What industries do you serve?

We serve a wide range of industrial and commercial industries that require reliable, precision‑engineered electrical components. Our products are commonly used in applications where durability, accuracy, and performance are critical.