What Magnetic Shield Corporation does

Magnetic Shield Corporation is a privately held specialty materials manufacturer founded in 1941 and headquartered in Bensenville, Illinois. The company designs, manufactures, and sells precision magnetic field shielding alloys (MuMETAL, Co-NETIC, NETIC, CRYO-NETIC) and provides custom fabrication services, including its proprietary Perfection Annealing heat treatment process. Its products are used to attenuate low-frequency magnetic interference for sensitive electronic equipment, scientific instruments, and medical devices.

The business operates a dual revenue model combining standard product sales (sheet, foil, plate, wire, cable shields, enclosures, evaluation lab kits) through an e-commerce storefront with custom-engineered solutions (custom shields, MuROOM modular shield rooms, MuCHAMBER chambers, Quantum Computing Magnetic Shields) sold via direct quote requests with engineering consultation. The company is ISO 9001:2015 certified and its products conform to ASTM A753 and MIL-N-1441C military specifications, enabling sales into aerospace, defense, medical, electronics, research, communications, and energy sectors globally.

The company employs 11-50 people, ships worldwide from its single Bensenville facility, and has remained privately held for over 80 years with no disclosed funding rounds, acquisitions, or external institutional investment. Recent strategic activity has focused on product line extensions (MuCHAMBER, ZG-206, ZG-Mini, Quantum Computing Magnetic Shields) and value-added services (turn-key MuROOM installation, CAD modeling, magnetic shield simulation, on-site surveys) rather than aggressive scaling.

Name

Magnetic Shield Corporation

Legal name

Magnetic Shield Corporation

Website

https://magnetic-shield.com

Company type

Private

Founded year

1941

Operating status

Operating

Headcount range

11–50 employees

Short description

Magnetic Shield Corporation, founded in 1941 and based in Bensenville, Illinois, manufactures proprietary soft magnetic shielding alloys (MuMETAL, Co-NETIC, NETIC, CRYO-NETIC) and custom fabricated shields. It serves aerospace, defense, medical, electronics, and research customers worldwide with engineered-to-order shielding solutions and modular MuROOM shield rooms.

Ownership category

akta.pro rank

Product category

Magnetic Shielding Materials

NAICS

Forging and Stamping (33211), Metal Heat Treating (332811), Spring and Wire Product Manufacturing (3326)

SIC

Electronic Coils, Transformers & Other Inductors (3677), Sheet Metal Work (3444), Metal Forgings & Stampings (3460)

akta.pro primary industry

Magnetic Field Control & Shielding (Coils, Mu-Metal, Active Cancellation) (HDAGABAK)

akta.pro secondary industries

Inductors & Coils (Power/RF/Chokes) (HDAHANAC), Thermal & EMI/EMC Interconnect Materials (Shielding, Gaskets, Grounding) (HDAHAOAL)

Keywords

• Magnetic shielding materials
• Soft magnetic alloys
• Custom shield fabrication
• Electromagnetic interference shielding
• Cryogenic magnetic shielding

Headquarters

HQ city

Bensenville

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Magnetic Shielding Materials Sales: Sale of proprietary soft magnetic alloys including MuMETAL, Co-NETIC, NETIC, and CRYO-NETIC in various forms (sheet, foil, plate, wire, cable shields). Products sold per foot, per inch, or in standard lengths. Volume discounts available.
2. Custom Fabrication Services: Custom magnetic shield design, prototyping, and manufacturing services. Engineering team provides estimates, calculations, mechanical construction design, and recommendations. Fabrication quote and prototyping quote services offered.
3. Perfection Annealing Services: Atmospherically controlled heat treatment services for magnetic shields of all sizes and types to maximize shielding efficiency.
4. MuROOM Magnetic Shield Room Sales: Modular magnetic shield rooms built with non-magnetic materials. Turn-key solution including design, installation, and proper assembly for maximum performance.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Magnetic Shield Corporation manufactures and fabricates magnetic shielding products from proprietary nickel-iron soft magnetic alloys (MuMETAL, Co-NETIC, NETIC, CRYO-NETIC) supplied as sheet, foil, wire, tubing, enclosures, cable sleeving, and complete shield rooms and chambers. The company also offers in-house Perfection Annealing services and custom scientific chamber fabrication for customers requiring specific shielding geometries and attenuation levels.

Product overview

Magnetic Shield Corporation offers a comprehensive portfolio of precision magnetic field shielding products and custom fabrication services, since 1941. The core product lines center on proprietary soft magnetic alloys—MuMETAL®, Co-NETIC®, NETIC®, and CRYO-NETIC®—available as sheets, foils, plates, wires, and fabricated components. These materials are sold both as raw stock and as finished products including shielding cans, enclosures, Zero Gauss Chambers, MuROOM® modular shield rooms, and MuCHAMBER® chambers. Supporting offerings include Evaluation Lab Kits for prototyping, AA CABLE SHIELD® and INTER-8® weave cables, SPIRA-SHIELD flexible conduits, and value-added services such as Perfection Annealing heat treatment, CAD modeling, magnetic shield simulation, 3D printing, and on-site surveys. The company holds ISO 9001:2015 certification and supplies to aerospace, defense, medical, electronics, research, communications, and energy sectors.

Differentiator

Problem solved

Functional benefit

Brands

• MuMETAL®: Proprietary soft magnetic alloy brand for low field shielding applications.
• Co-NETIC®
• NETIC®
• CRYO-NETIC®
• MuROOM®
• AA CABLE SHIELD®
• INTER-8®
• SPIRA-SHIELD
• Ferronato®

Products and services

• MuMETAL® Brand Products Proprietary high-permeability nickel-iron alloy supplied as sheet, foil, plate, toroidal cores, and tubing for OEM and R&D customers requiring low-frequency magnetic field attenuation.
• Co-NETIC® Sheet & Foil Proprietary nickel-iron alloy shielding stock produced in sheet and foil gauges for magnetic field attenuation applications in instrumentation and laboratory settings.
• NETIC® Sheet & Foil Proprietary high-saturation iron-based alloy shielding stock for applications requiring higher flux density handling than MuMETAL.
• CRYO-NETIC® Sheet & Foil Proprietary cryogenic-grade shielding alloy supplied as sheet and foil for superconducting magnet, Dewar, and low-temperature physics applications.
• Co-NETIC® AA Wire Proprietary nickel-iron alloy wire used to braid cable shields and to wind shielding wraps around conductors and harnesses.
• AA Cable Shield® (Braided Sleeving) Flexible braided sleeving made from Co-NETIC AA wire that wraps around cables and harnesses to attenuate magnetic and electromagnetic interference.
• INTER-8® Weave Cable Flexible woven shielding wrap for cables, harnesses, and irregular geometries where rigid shields are impractical.
• SPIRA-SHIELD Flexible Conduit Flexible spiral-wound magnetic shielding conduit that surrounds cable runs in field-deployable or instrumentation systems.
• MuROOM® Magnetic Shield Room Prefabricated walk-in magnetic shield room constructed from alloy panels for biomagnetism (MEG, EEG), low-field MRI research, and physics experiments requiring extremely low ambient magnetic field.
• MuCHAMBER® Bench-scale magnetic shielding chamber for compact experimental setups, sensor characterization, and smaller-scale research instrumentation where room-scale shielding is unnecessary.
• Zero Gauss Chambers (ZG-Mini, ZG-206) Cylindrical zero-gauss chambers that use nested shielding layers with active field cancellation to produce a near-zero magnetic field interior, available in two sizes (ZG-Mini and ZG-206).
• MuMETAL® Shielding Cans & Enclosures Standard and custom-formed MuMETAL cans, boxes, and enclosures used to shield electronic assemblies, sensors, photomultiplier tubes, and other sensitive components from stray magnetic fields.
• Quantum Computing Magnetic Shields Engineered magnetic shields designed to isolate superconducting and trapped-ion qubit systems, dilution refrigerators, and cryostats from ambient and stray magnetic fields.
• Evaluation Lab Kits (LK Series) Pre-packaged kits containing sample shielding alloy sheets, foils, and accessories (e.g., LK-110, LK-120, LK-130U) that allow universities, students, and researchers to evaluate magnetic shielding performance before specifying production material.
• Custom Scientific Chambers Bespoke magnetic shielding chambers engineered and fabricated to customer specifications for unique geometries, attenuation targets, or integration with existing scientific instruments.
• Custom Fabrication Services Make-to-order forming, welding, machining, and assembly of magnetic shielding components from customer drawings, including prototypes through production volumes.
• Perfection Annealing Service Proprietary hydrogen-atmosphere heat treatment service that restores maximum magnetic permeability to formed alloy parts, offered both as part of fabricated shield deliveries and as a standalone toll service for customer-supplied parts.

Quantifiable outcome

• 25,000:1 reduction of Earth's magnetic field in Zero Gauss Chambers

Named customers5 records

Segments8 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Ad-Vance Magnetics: Ad-Vance Magnetics produces magnetic shielding materials including Mu-Metal sheet and foil, fabricated shields, and EMI shielding products for industrial and research customers - closest direct competitor in alloy-based magnetic shielding.
• Amuneal Manufacturing Corp: Amuneal manufactures magnetic shielding products, custom fabricated enclosures, and Mu-Metal-based shielding solutions serving research, defense, and medical customers - directly comparable product portfolio to Magnetic Shield Corporation.
• MuShield Company: MuShield is a direct competitor specializing in Mu-Metal magnetic shielding enclosures and custom fabricated shields, serving similar aerospace, defense, and laboratory end markets.

Emerging players

• Less EMF Inc: Less EMF sells magnetic shielding materials, Mu-Metal foils, and small-scale enclosures to research, EMR-sensitive, and consumer markets - overlapping product catalog (Mu-Metal alloys, shielding enclosures) but with a focus on smaller orders and consumer/research rather than defense/aerospace.
• ETS-Lindgren: ETS-Lindgren designs and manufactures RF/EMI shielded rooms and enclosures with overlap on magnetic shielding capabilities, addressing similar research, medical (MRI), and defense end markets with a complementary shielding technology suite.
• Crumpton Magnetics & Cryogenics: Crumpton supplies magnetic shielding alloys and cryogenic accessories, with partial overlap on CRYO-NETIC-type cryogenic shielding offerings serving scientific research customers.

Broad incumbents

• Materion Corporation: Materion is a diversified specialty alloys and advanced materials supplier producing beryllium, specialty nickel-based, and magnetic alloys used in shielding and electronic applications - relevant as a broader specialty alloy producer with adjacent shielding capabilities.
• Carpenter Technology Corporation: Carpenter Technology produces specialty alloys including soft magnetic grades used for transformers, inductors, and electromagnetic shielding components - comparable in metallurgical capability but at significantly greater scale and broader portfolio.
• Arnold Magnetic Technologies: Arnold manufactures a broad portfolio of magnetic materials, precision magnetic shields, and assemblies for aerospace, defense, and industrial markets - overlapping core magnetic shielding capabilities with Magnetic Shield Corporation's product line.
• Vacuumschmelze (VAC): VAC is a global incumbent producer of soft magnetic materials and precision alloys, including the Vitrovac and Mumetall product families, serving a much broader industrial base but competing in the same soft magnetic alloy category.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/magshieldcorp

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Magnetic Shield Corporation