National Shielding
National Shielding is a veteran-owned, family-owned Dallas, Texas manufacturer that designs, fabricates, and installs custom RF and EMI shielded enclosures for MRI rooms, government SCIFs, and industrial facilities across the US and North America.
- Company typePrivate
- Founded1998
- HeadquartersGrand Prairie, United States
- Headcount—
- GTM typeB2B
- OfferingHardware or Manufacturing
What National Shielding does
National Shielding is a veteran-owned, family-owned RF and EMI shielding manufacturer founded circa 1998 and headquartered in Grand Prairie, Texas, with its central production facility in Dallas, Texas. The company designs, fabricates, and installs custom electromagnetic shielding enclosures for three primary use cases: MRI imaging rooms in hospitals and diagnostic centers; secure government, military, and SCIF facilities; and industrial, data center, and research environments. It also offers supporting components such as EMI filters, RF shielded windows, the patented Windsor II shielded door, and copper RF shielding tape, plus magnetic shield design consulting using proprietary software that mirrors OEM magnet-design programs.
The firm's core technology rests on three RF shielding enclosure variants — copper modular, steel modular, and copper soldered — each meeting attenuation specifications better than 100 dB, with steel modular capable of worldwide shipping and installation. National Shielding operates a vertically integrated direct-sales and direct-install model: products are manufactured at the Dallas facility, then installed by employed technicians (no sub-contractors) on-site at hospitals, military bases, imaging centers, and commercial facilities across the US and North America.
Revenue is generated through custom, project-based quotes for enclosure design, manufacture, and installation, supplemented by hardware sales of EMI filters and shielding supplies, repair and testing services for existing shields, and engineering design fees. Pricing is not publicly disclosed. Customers span healthcare (Baylor Scott and White, Penn Medicine, SimonMed, Touchstone Imaging, VA Hospitals), government and military (Malmstrom AFB, Elmendorf AFB), financial services (Mastercard Vault), and veterinary clinics, with hundreds of RF shielded enclosures delivered worldwide over more than 25 years of operation.
National Shielding firmographics
Firmographics- Name
- National Shielding
- Legal name
- National Shielding Inc
- Website
- https://mri-shielding.com
- Company type
- Private
- Founded year
- 1998
- Operating status
- Operating
- Short description
- National Shielding is a veteran-owned, family-owned Dallas, Texas manufacturer that designs, fabricates, and installs custom RF and EMI shielded enclosures for MRI rooms, government SCIFs, and industrial facilities across the US and North America.
- Ownership category
- akta.pro rank
National Shielding industry classification
Industry- Product category
- RF Shielding Manufacturing
- NAICS
- Electronic Connector Manufacturing (334417)
- SIC
- Electronic & Other Electrical Equipment (No Computer Equip) (3600), Electrical Industrial Apparatus (3620)
- akta.pro primary industry
- Thermal & EMI/EMC Interconnect Materials (Shielding, Gaskets, Grounding) (HDAHAOAL)
- akta.pro secondary industry
- EMI/RFI Suppression Components (Ferrite Beads/Cores/Filters) (HDAHANAE)
Keywords
Where National Shielding is headquartered
LocationHeadquarters
- HQ city
- Grand Prairie
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
National Shielding business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
Revenue model
- RF Shielded Enclosure Manufacturing and Installation: Custom-manufactured RF shielded enclosures (copper modular, steel modular, soldered) for MRI rooms and industrial applications, including installation by company-employed technicians. Project-based revenue from design through installation.
- EMI Filter Sales: EMI filter manufacturing and sales for electromagnetic interference reduction in electronic systems, applicable to healthcare equipment, communication networks, and industrial machinery.
- Shield Parts and Supplies: Sale of RF shielding materials including copper tape, replacement components, and accessories through their shield parts store.
- Repair and Maintenance Services: RF shield repairs, testing services, and maintenance for existing shielding including components like doors, windows, and EMI power filters.
- Magnetic Shielding Design Services: Engineering consultation and design services for MRI magnetic field containment, including calculation of required steel and specialized materials.
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
National Shielding product offering
Product offeringCore offering
National Shielding manufactures and installs RF shielded enclosures primarily for MRI rooms and other EMI/RF-sensitive environments. The company offers three main shield construction types—copper modular, steel modular, and copper soldered—along with complementary shielded doors, windows, EMI filters, copper tape, and custom magnetic shield design services.
Product overview
National Shielding is a veteran-owned, family-owned RF shielding manufacturer specializing in electromagnetic interference (EMI/RF) shielded enclosures. The company offers three types of RF shielding systems: Steel Modular RF Shielding (industry standard for high RF effectiveness), Copper Modular RF Shielding (with lifetime warranty), and Copper Soldered RF Shielding (premium option with 100+ dB attenuation). Core products include RF Shielded Enclosures for MRI rooms, industrial facilities, secure communication rooms, SCIFs, and server rooms. Supporting products include Windsor II RF Shielded Doors, RF Shielded Windows, EMI Filters, and Magnetic Shield Design Services. The company manufactures at its Dallas, TX facility and provides installation services throughout the US using in-house technicians (no subcontractors). National has over 25 years of MRI shielding experience and also offers copper tape and other shielding supplies.
Differentiator
Problem solved
Functional benefit
Products and services
- Copper Modular RF Shield
- Steel Modular RF Shield
- Copper Soldered RF Shield
- Windsor II RF Shielded Door
- RF Shielded Windows
- EMI Filters
- Magnetic Shield Design Services
- Copper Tape
Quantifiable outcome
- Better than 100dB attenuation across all shield types
- +2 more outcomes
Companies that use National Shielding
Customer profileNamed customers18 records
Segments4 records
National Shielding technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
National Shielding partnerships and signals
Strategic signalScale indicators5 records
Recent moves6 records
Expansion highlights6 records
National Shielding competitors and assessment
Company assessmentBroad incumbents
- Parker Chomerics: Parker Chomerics (division of Parker Hannifin) is a broad supplier of EMI shielding materials, conductive gaskets, and thermal interface products — overlapping National Shielding's EMI filter and gasket-based shielding portfolio as part of a much wider industrial portfolio.
- Laird Performance Materials: Laird Performance Materials (now part of DuPont) is a broad supplier of EMI shielding, thermal management, and signal integrity products — adjacent to National Shielding's EMI suppression components within a much larger electronics materials portfolio.
Direct peers
- Magnetic Shield Corporation: Magnetic Shield Corporation specializes in magnetic shielding (including MRI magnet containment) and shielding alloys such as MuMETAL — directly overlapping National Shielding's MRI magnetic shield design services and shielding material supply business.
- Universal Shielding Corporation: Universal Shielding Corporation manufactures RF shielded enclosures, MRI rooms, and anechoic chambers with installation services — competing head-to-head with National Shielding for the same MRI and industrial shielding projects.
- Holland Shielding Systems: Holland Shielding Systems is a European EMI/RFI shielding products and enclosure manufacturer offering Faraday cages, RF shielded rooms, conductive gaskets, and shielding tapes — competing with National Shielding in the same shielded enclosure and shield parts categories.
- ETS-Lindgren: ETS-Lindgren is the largest global RF/EMI shielded enclosure manufacturer (owned by ESCO Technologies), offering MRI, SCIF, and anechoic chamber installations across healthcare, defense, and wireless — directly competing with National Shielding across the same customer segments and product categories.
- Magnetic Shields Ltd: Magnetic Shields Ltd is a UK-based specialist in magnetic shielding for MRI and industrial applications, providing design services and fabricated shielding enclosures — directly comparable to National Shielding's MRI-focused magnetic containment offering.
- Spira Manufacturing: Spira Manufacturing produces EMI/RFI shielding gaskets, board-level shielding, and Faraday cage components — closely comparable to National Shielding's RF shielded door/window gaskets and EMI suppression product lines.
- Ramsey Steel (a Cumming Group company): Ramsey Steel is a long-standing US RF shielded room and enclosure manufacturer (now part of Cumming Group) — a direct historical competitor to National Shielding in MRI and secure-room construction.
- Worldwide Electro-Shielding Corp: Worldwide Electro-Shielding Corp builds RF shielded enclosures and Faraday cage rooms for medical, government, and industrial clients — directly comparable in product scope, customer type, and installation model.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
National Shielding social profiles
Digital presenceNational Shielding financial estimates
Financial estimateRevenue estimate
Valuation estimate
National Shielding leadership team
Management profileNumber of profiles
National Shielding funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
National Shielding M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about National Shielding
What does National Shielding do?
National Shielding manufactures and installs RF shielded enclosures primarily for MRI rooms and other EMI/RF-sensitive environments. The company offers three main shield construction types—copper modular, steel modular, and copper soldered—along with complementary shielded doors, windows, EMI filters, copper tape, and custom magnetic shield design services.
Is National Shielding a public or private company?
National Shielding is a private company. It is classified as family owned and is currently operating.
When was National Shielding founded?
National Shielding was founded in 1998.
Where is National Shielding based?
National Shielding is headquartered in Grand Prairie, United States, in the North America region.
How does National Shielding make money?
Five revenue lines are on record. RF Shielded Enclosure Manufacturing and Installation is the primary driver. The others are EMI Filter Sales, shield Parts and Supplies, repair and Maintenance Services and magnetic Shielding Design Services.
Who are National Shielding's main competitors?
Broad incumbents on record are Parker Chomerics and Laird Performance Materials. Direct peers are Magnetic Shield Corporation, Universal Shielding Corporation, Holland Shielding Systems, ETS-Lindgren, Magnetic Shields Ltd, Spira Manufacturing, Ramsey Steel (a Cumming Group company) and Worldwide Electro-Shielding Corp.
Does National Shielding have an API?
No public API is recorded for National Shielding.
What industry is National Shielding in?
National Shielding's product category is RF Shielding Manufacturing. Its primary akta.pro industry code is HDAHAOAL, Thermal & EMI/EMC Interconnect Materials (Shielding, Gaskets, Grounding), with a secondary code of HDAHANAE, EMI/RFI Suppression Components (Ferrite Beads/Cores/Filters). Its NAICS code is 334417 and its SIC code is 3600.