Company lists · Data refreshed October 2026
Top 25 Emi/rfi filter suppliers based in the United States
RevenueBase identified 93 company matches for emi/rfi filter suppliers associated with the United States as of October 2026 and tracks 2,537 professional contacts across them, including 1,007 with verified work emails. San Jose is the largest hub.
This list covers company matches for emi/rfi filter suppliers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 25, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest emi/rfi filter suppliers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 464 contacts → | ||||
Exact match “The Würth Elektronik Group of companies has about 7,300 employees worldwide and generated global sales of $1.25 billion in 2025.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 2 | 421 contacts → | ||||
Exact match “Our privately held company was founded in 1945 as a custom coil maker for the radio manufacturers clustered around the Chicago area.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 3 | 296 contacts → | ||||
Exact match “Astrodyne TDI is a custom designer and manufacturer of innovative power solutions for demanding applications worldwide.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 4 | 230 contacts → | ||||
Exact match “MTE Corporation was formed in 1982 by bringing together Milwaukee Transformer Co, Transformer Design Inc.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 5 | 118 contacts → | ||||
Exact match “ARC Technologies Inc.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 6 | 69 contacts → | ||||
Exact match “Thin Film Technology is your solution provider.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 7 | 62 contacts → | ||||
Exact match “Universal Air Filter Company ("UAF") designs and manufactures custom air filters and EMI shielding products used to protect commercial equipment and electronics enclosures.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 8 | 60 contacts → | ||||
Exact match “Leader Tech is a world-leading innovator and U.S.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 9 | 46 contacts → | ||||
Exact match “Resonant, Murata Company, provides radio frequency (RF) filter solutions, developed on a robust intellectual property platform, that connect People and Things.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 10 | 42 contacts → | ||||
Exact match “M2 Global Technology, Ltd."Your Solutions Source" for RF Passive Microwave Components and Precision Manufacturing Services.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 11 | 35 contacts → | ||||
Exact match “Trans-Tech is the leading design and manufacturer of RF and microwave components that help our world communicate, discover, create, protect, explore and more.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 12 | 35 contacts → | ||||
Exact match “Schlegel Electronic Materials (SEM) invented highly conductive fabric over foam shielding gaskets in 1987, marking a major breakthrough for the electromagnetic interference…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 13 | 34 contacts → | ||||
Exact match “ITG has been a leading electrical and mechanical components, EMI Module and Power Module supplier since 1963.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 14 | 25 contacts → | ||||
Exact match “NexTek is the premier source for Coaxial/RF Surge Protection and High Current EMC/EMI Filters.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 15 | 24 contacts → | ||||
Exact match “Wi2Wi is a specialized electronic component supplier with expertise in all aspects of frequency control devices.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 16 | 23 contacts → | ||||
Exact match “Captor Corporation is an electrical/electronic manufacturing company based out of United States.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 17 | 23 contacts → | ||||
Exact match “Networks International Corporation (NIC) is a leading manufacturer of custom RF & Microwave Filters and Assemblies.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 18 | 21 contacts → | ||||
Exact match “MCV Microwave has established itself as a one-stop-shop leader in RF microwave filters, antenna, and dielectric resonators since 1995.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 19 | 20 contacts → | ||||
Exact match “Curtis Industries is a manufacturer of both standard and custom terminal blocks and EMI/RFI filters as well as a variety of custom controls and cable assemblies.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 20 | 20 contacts → | ||||
Exact match “Quell is the maker of the EESeal FilterSeals brand of EMI Filters, Retrofit Inserts, and Transient Suppressors.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 21 | 20 contacts → | ||||
Exact match “SAE Power designs and manufacturers standard to custom Switching Power Supplies, Magnetic Components, and EMI/RFI Line Filters.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 22 | 18 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 23 | 17 contacts → | ||||
Exact match “Established in 1959, WEMS Electronics is a full service turn-key Small Business with an extensive complex specializing in state-of-the-art EMI custom filters, engineering and…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 24 | 16 contacts → | ||||
Exact match “Manufacturer of custom RF/Microwave filters for communications, navigation, EW applications” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 25 | 16 contacts → | ||||
Exact match “JQL Tech is the Global Leader in designing and manufacturing for RF components including Isolators, Circulators, Cavity Filter, Couplers and Microwave Antenna.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “emi/rfi filter suppliers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 93 emi/rfi filter suppliers based in the United States
See the full list, filter by size, metro and specialty, and access 1,007 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Emi/rfi filter suppliers based in the United States at a glance
As of Oct 25, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 93 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with the United States whose business descriptions match “emi/rfi filter suppliers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 1,007 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 25, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “emi/rfi filter suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many emi/rfi filter suppliers are there based in the United States?
RevenueBase identified 93 company matches for emi/rfi filter suppliers associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Wurth Elektronik tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most emi/rfi filter suppliers?
San Jose leads with 3 company records, followed by Albuquerque (2) and Ann Arbor (2).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,007 professional contacts with verified work emails tracked across these 93 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 25, 2026.
Ready to reach these companies? Verified emails and direct dials for all 93 emi/rfi filter suppliers based in the United States. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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- AI companies based in the United States
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Company intelligence · public preview
Top 25 emi/rfi filter suppliers based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 93 matching company records for emi/rfi filter suppliers based in the United States, with 2,537 tracked contacts and 1,007 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 25, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 emi/rfi filter suppliers based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Wurth Elektronikwe-online.comHQ: Watertown, SD, United StatesReported employees: 5,001-10,000 | Watertown, SD, United States | 5,001-10,000 | Exact match | 464 contacts → |
“The Würth Elektronik Group of companies has about 7,300 employees worldwide and generated global sales of $1.25 billion in 2025.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Coilcraft, INCcoilcraft.com HQ: Cary, IL, United StatesReported employees: 1,001-5,000 | Cary, IL, United States | 1,001-5,000 | Exact match | 421 contacts → |
“Our privately held company was founded in 1945 as a custom coil maker for the radio manufacturers clustered around the Chicago area.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Astrodyne TDIastrodynetdi.comHQ: Hackettstown, NJ, United StatesReported employees: 501-1,000 | Hackettstown, NJ, United States | 501-1,000 | Exact match | 296 contacts → |
“Astrodyne TDI is a custom designer and manufacturer of innovative power solutions for demanding applications worldwide.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | MTE Corporationmtecorp.com HQ: Mte Corporation World Headquarters, WI, United StatesReported employees: 201-500 | Mte Corporation World Headquarters, WI, United States | 201-500 | Exact match | 230 contacts → |
“MTE Corporation was formed in 1982 by bringing together Milwaukee Transformer Co, Transformer Design Inc.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | ARC Technologies Llc, A Hexcel Companyarc-tech.com HQ: Amesbury, MA, United StatesReported employees: 51-200 | Amesbury, MA, United States | 51-200 | Exact match | 118 contacts → |
“ARC Technologies Inc.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Thin Film Technology Corporationthin-film.com HQ: North Mankato, MN, United StatesReported employees: 51-200 | North Mankato, MN, United States | 51-200 | Exact match | 69 contacts → |
“Thin Film Technology is your solution provider.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Universal AIR Filteruaf.com HQ: Sauget, IL, United StatesReported employees: 51-200 | Sauget, IL, United States | 51-200 | Exact match | 62 contacts → |
“Universal Air Filter Company ("UAF") designs and manufactures custom air filters and EMI shielding products used to protect commercial equipment and electronics enclosures.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Leader Tech INCleadertechinc.com HQ: Tampa, FL, United StatesReported employees: 51-200 | Tampa, FL, United States | 51-200 | Exact match | 60 contacts → |
“Leader Tech is a world-leading innovator and U.S.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Resonant Inc., A Murata Companyresonant.com HQ: San Mateo, CA, United StatesReported employees: 51-200 | San Mateo, CA, United States | 51-200 | Exact match | 46 contacts → |
“Resonant, Murata Company, provides radio frequency (RF) filter solutions, developed on a robust intellectual property platform, that connect People and Things.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | M2 Global Technology, LTDm2global.com HQ: San Antonio, TX, United StatesReported employees: 51-200 | San Antonio, TX, United States | 51-200 | Exact match | 42 contacts → |
“M2 Global Technology, Ltd."Your Solutions Source" for RF Passive Microwave Components and Precision Manufacturing Services.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Trans-Techtrans-techinc.com HQ: Adamstown, MD, United StatesReported employees: 51-200 | Adamstown, MD, United States | 51-200 | Exact match | 35 contacts → |
“Trans-Tech is the leading design and manufacturer of RF and microwave components that help our world communicate, discover, create, protect, explore and more.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Schlegel Electronic Materials, INCschlegelemi.com HQ: Rochester, NY, United StatesReported employees: 201-500 | Rochester, NY, United States | 201-500 | Exact match | 35 contacts → |
“Schlegel Electronic Materials (SEM) invented highly conductive fabric over foam shielding gaskets in 1987, marking a major breakthrough for the electromagnetic interference…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | ITG Electronicsitg-electronics.com HQ: Elmsford, NY, United StatesReported employees: 501-1,000 | Elmsford, NY, United States | 501-1,000 | Exact match | 34 contacts → |
“ITG has been a leading electrical and mechanical components, EMI Module and Power Module supplier since 1963.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Nextek, LLCnextek.com HQ: North Billerica, MA, United StatesReported employees: 11-50 | North Billerica, MA, United States | 11-50 | Exact match | 25 contacts → |
“NexTek is the premier source for Coaxial/RF Surge Protection and High Current EMC/EMI Filters.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Wi2wi Corporation Precision Deviceswi2wi.com HQ: Middleton, WI, United StatesReported employees: 51-200 | Middleton, WI, United States | 51-200 | Exact match | 24 contacts → |
“Wi2Wi is a specialized electronic component supplier with expertise in all aspects of frequency control devices.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Captor Corporationcaptorcorp.com HQ: Tipp City, OH, United StatesReported employees: 51-200 | Tipp City, OH, United States | 51-200 | Exact match | 23 contacts → |
“Captor Corporation is an electrical/electronic manufacturing company based out of United States.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Networks International Corporationnickc.com HQ: Overland Park, KS, United StatesReported employees: 11-50 | Overland Park, KS, United States | 11-50 | Exact match | 23 contacts → |
“Networks International Corporation (NIC) is a leading manufacturer of custom RF & Microwave Filters and Assemblies.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | MCV Microwave East, INCmcv-microwave.com HQ: San Diego, CA, United StatesReported employees: 11-50 | San Diego, CA, United States | 11-50 | Exact match | 21 contacts → |
“MCV Microwave has established itself as a one-stop-shop leader in RF microwave filters, antenna, and dielectric resonators since 1995.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Milwaukee, WI, United StatesReported employees: 51-200 | Milwaukee, WI, United States | 51-200 | Exact match | 20 contacts → |
“Curtis Industries is a manufacturer of both standard and custom terminal blocks and EMI/RFI filters as well as a variety of custom controls and cable assemblies.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Quell Corporationeeseal.com HQ: Albuquerque, NM, United StatesReported employees: 51-200 | Albuquerque, NM, United States | 51-200 | Exact match | 20 contacts → |
“Quell is the maker of the EESeal FilterSeals brand of EMI Filters, Retrofit Inserts, and Transient Suppressors.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | SAE Powersaepower.com HQ: San Jose, CA, United StatesReported employees: 501-1,000 | San Jose, CA, United States | 501-1,000 | Exact match | 20 contacts → |
“SAE Power designs and manufacturers standard to custom Switching Power Supplies, Magnetic Components, and EMI/RFI Line Filters.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | MTK Electronics, INCmtkelectronics.com HQ: Medford, NY, United StatesReported employees: 11-50 | Medford, NY, United States | 11-50 | Exact match | 18 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 | Wems Electronicswems.com HQ: Hawthorne, CA, United StatesReported employees: 11-50 | Hawthorne, CA, United States | 11-50 | Exact match | 17 contacts → |
“Established in 1959, WEMS Electronics is a full service turn-key Small Business with an extensive complex specializing in state-of-the-art EMI custom filters, engineering and…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Comnav Engineering, INCcomnav-eng.com HQ: Portland, United StatesReported employees: 11-50 | Portland, United States | 11-50 | Exact match | 16 contacts → |
“Manufacturer of custom RF/Microwave filters for communications, navigation, EW applications” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | JQL Technologies Corporationjqlelectronics.com HQ: Mundelein, IL, United StatesReported employees: 201-500 | Mundelein, IL, United States | 201-500 | Exact match | 16 contacts → |
“JQL Tech is the Global Leader in designing and manufacturing for RF components including Isolators, Circulators, Cavity Filter, Couplers and Microwave Antenna.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 93 company matches
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Emi/rfi filter suppliers: dataset insights
October 25, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
93 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 93 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 25, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for emi/rfi filter suppliers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many emi/rfi filter suppliers did RevenueBase find based in the United States?
The saved snapshot records 93 matching company records, 2,537 tracked contacts and 1,007 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 25, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 25 emi/rfi filter suppliers based in the United States. Snapshot: October 25, 2026. https://revenuebase.ai/companies/emi-rfi-filter-suppliers/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
- Real estate companies based in the United States
Company intelligence · public preview
Top 25 emi/rfi filter suppliers based in the United States
RevenueBase records 93 matching company records for emi/rfi filter suppliers based in the United States, with 2,537 tracked contacts and 1,007 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 25, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 emi/rfi filter suppliers based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Wurth Elektronikwe-online.com HQ: Watertown, SD, United StatesReported employees: 5,001-10,000 | Watertown, SD, United States | 5,001-10,000 | Exact match | 464 contacts → |
“The Würth Elektronik Group of companies has about 7,300 employees worldwide and generated global sales of $1.25 billion in 2025.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Coilcraft, INCcoilcraft.com HQ: Cary, IL, United StatesReported employees: 1,001-5,000 | Cary, IL, United States | 1,001-5,000 | Exact match | 421 contacts → |
“Our privately held company was founded in 1945 as a custom coil maker for the radio manufacturers clustered around the Chicago area.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Astrodyne TDIastrodynetdi.com HQ: Hackettstown, NJ, United StatesReported employees: 501-1,000 | Hackettstown, NJ, United States | 501-1,000 | Exact match | 296 contacts → |
“Astrodyne TDI is a custom designer and manufacturer of innovative power solutions for demanding applications worldwide.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | MTE Corporationmtecorp.com HQ: Mte Corporation World Headquarters, WI, United StatesReported employees: 201-500 | Mte Corporation World Headquarters, WI, United States | 201-500 | Exact match | 230 contacts → |
“MTE Corporation was formed in 1982 by bringing together Milwaukee Transformer Co, Transformer Design Inc.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | ARC Technologies Llc, A Hexcel Companyarc-tech.com HQ: Amesbury, MA, United StatesReported employees: 51-200 | Amesbury, MA, United States | 51-200 | Exact match | 118 contacts → |
“ARC Technologies Inc.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Thin Film Technology Corporationthin-film.com HQ: North Mankato, MN, United StatesReported employees: 51-200 | North Mankato, MN, United States | 51-200 | Exact match | 69 contacts → |
“Thin Film Technology is your solution provider.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Universal AIR Filteruaf.com HQ: Sauget, IL, United StatesReported employees: 51-200 | Sauget, IL, United States | 51-200 | Exact match | 62 contacts → |
“Universal Air Filter Company ("UAF") designs and manufactures custom air filters and EMI shielding products used to protect commercial equipment and electronics enclosures.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Leader Tech INCleadertechinc.com HQ: Tampa, FL, United StatesReported employees: 51-200 | Tampa, FL, United States | 51-200 | Exact match | 60 contacts → |
“Leader Tech is a world-leading innovator and U.S.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Resonant Inc., A Murata Companyresonant.com HQ: San Mateo, CA, United StatesReported employees: 51-200 | San Mateo, CA, United States | 51-200 | Exact match | 46 contacts → |
“Resonant, Murata Company, provides radio frequency (RF) filter solutions, developed on a robust intellectual property platform, that connect People and Things.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | M2 Global Technology, LTDm2global.com HQ: San Antonio, TX, United StatesReported employees: 51-200 | San Antonio, TX, United States | 51-200 | Exact match | 42 contacts → |
“M2 Global Technology, Ltd."Your Solutions Source" for RF Passive Microwave Components and Precision Manufacturing Services.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Trans-Techtrans-techinc.com HQ: Adamstown, MD, United StatesReported employees: 51-200 | Adamstown, MD, United States | 51-200 | Exact match | 35 contacts → |
“Trans-Tech is the leading design and manufacturer of RF and microwave components that help our world communicate, discover, create, protect, explore and more.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Schlegel Electronic Materials, INCschlegelemi.com HQ: Rochester, NY, United StatesReported employees: 201-500 | Rochester, NY, United States | 201-500 | Exact match | 35 contacts → |
“Schlegel Electronic Materials (SEM) invented highly conductive fabric over foam shielding gaskets in 1987, marking a major breakthrough for the electromagnetic interference…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | ITG Electronicsitg-electronics.com HQ: Elmsford, NY, United StatesReported employees: 501-1,000 | Elmsford, NY, United States | 501-1,000 | Exact match | 34 contacts → |
“ITG has been a leading electrical and mechanical components, EMI Module and Power Module supplier since 1963.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Nextek, LLCnextek.com HQ: North Billerica, MA, United StatesReported employees: 11-50 | North Billerica, MA, United States | 11-50 | Exact match | 25 contacts → |
“NexTek is the premier source for Coaxial/RF Surge Protection and High Current EMC/EMI Filters.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Wi2wi Corporation Precision Deviceswi2wi.com HQ: Middleton, WI, United StatesReported employees: 51-200 | Middleton, WI, United States | 51-200 | Exact match | 24 contacts → |
“Wi2Wi is a specialized electronic component supplier with expertise in all aspects of frequency control devices.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Captor Corporationcaptorcorp.com HQ: Tipp City, OH, United StatesReported employees: 51-200 | Tipp City, OH, United States | 51-200 | Exact match | 23 contacts → |
“Captor Corporation is an electrical/electronic manufacturing company based out of United States.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Networks International Corporationnickc.com HQ: Overland Park, KS, United StatesReported employees: 11-50 | Overland Park, KS, United States | 11-50 | Exact match | 23 contacts → |
“Networks International Corporation (NIC) is a leading manufacturer of custom RF & Microwave Filters and Assemblies.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | MCV Microwave East, INCmcv-microwave.com HQ: San Diego, CA, United StatesReported employees: 11-50 | San Diego, CA, United States | 11-50 | Exact match | 21 contacts → |
“MCV Microwave has established itself as a one-stop-shop leader in RF microwave filters, antenna, and dielectric resonators since 1995.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | HQ: Milwaukee, WI, United StatesReported employees: 51-200 | Milwaukee, WI, United States | 51-200 | Exact match | 20 contacts → |
“Curtis Industries is a manufacturer of both standard and custom terminal blocks and EMI/RFI filters as well as a variety of custom controls and cable assemblies.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Quell Corporationeeseal.com HQ: Albuquerque, NM, United StatesReported employees: 51-200 | Albuquerque, NM, United States | 51-200 | Exact match | 20 contacts → |
“Quell is the maker of the EESeal FilterSeals brand of EMI Filters, Retrofit Inserts, and Transient Suppressors.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | SAE Powersaepower.com HQ: San Jose, CA, United StatesReported employees: 501-1,000 | San Jose, CA, United States | 501-1,000 | Exact match | 20 contacts → |
“SAE Power designs and manufacturers standard to custom Switching Power Supplies, Magnetic Components, and EMI/RFI Line Filters.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | MTK Electronics, INCmtkelectronics.com HQ: Medford, NY, United StatesReported employees: 11-50 | Medford, NY, United States | 11-50 | Exact match | 18 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 23 | Wems Electronicswems.com HQ: Hawthorne, CA, United StatesReported employees: 11-50 | Hawthorne, CA, United States | 11-50 | Exact match | 17 contacts → |
“Established in 1959, WEMS Electronics is a full service turn-key Small Business with an extensive complex specializing in state-of-the-art EMI custom filters, engineering and…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Comnav Engineering, INCcomnav-eng.com HQ: Portland, United StatesReported employees: 11-50 | Portland, United States | 11-50 | Exact match | 16 contacts → |
“Manufacturer of custom RF/Microwave filters for communications, navigation, EW applications” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | JQL Technologies Corporationjqlelectronics.com HQ: Mundelein, IL, United StatesReported employees: 201-500 | Mundelein, IL, United States | 201-500 | Exact match | 16 contacts → |
“JQL Tech is the Global Leader in designing and manufacturing for RF components including Isolators, Circulators, Cavity Filter, Couplers and Microwave Antenna.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 93 company matches
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Emi/rfi filter suppliers: dataset insights
October 25, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
93 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 93 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 25, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for emi/rfi filter suppliers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many emi/rfi filter suppliers did RevenueBase find based in the United States?
The saved snapshot records 93 matching company records, 2,537 tracked contacts and 1,007 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 25, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 25 emi/rfi filter suppliers based in the United States. Snapshot: October 25, 2026. https://revenuebase.ai/companies/emi-rfi-filter-suppliers/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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