Company lists · Data refreshed November 2026

Top 25 Retrofit emi suppression filter suppliers worldwide

RevenueBase identified 120 company matches for retrofit emi suppression filter suppliers worldwide as of November 2026 and tracks 1,487 professional contacts across them, including 429 with verified work emails. The United States is the largest market and Shenzhen the largest hub.

This list covers company matches for retrofit emi suppression filter suppliers worldwide, 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 November 1, 2026. Country and city lists for retrofit emi suppression filter suppliers follow the table.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 1, 2026 How this list was built
120Companies
1,487Contacts tracked
429Verified emails
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The 25 largest retrofit emi suppression filter suppliers worldwide

Ranked by team size
Top 25 of 120 company matches for retrofit emi suppression filter suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchMumbai, IndiaHQ recorded Nov 1, 2026201-500299 contacts →

Exact match

“Pioneers of EM & E components and products in India, since 1981.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
2Exact matchHallsberg, SwedenHQ recorded Nov 1, 2026501-1,00067 contacts →

Exact match

“The use of electronic equipment is increasing every day.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
3Exact matchSauget, IL, United StatesHQ recorded Nov 1, 202651-20062 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 · Nov 1, 2026 · View company records in RevenueBase
4Exact matchTampa, FL, United StatesHQ recorded Nov 1, 202651-20060 contacts →

Exact match

“Leader Tech is a world-leading innovator and U.S.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
5Exact matchChennai, IndiaHQ recorded Nov 1, 202611-5047 contacts →

Exact match

“TEKIKNOW Technologies is a leading manufacturer in the field of EMI/EMC, RF Shielding, and test & measurement solutions.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
6Exact matchElmsford, NY, United StatesHQ recorded Nov 1, 2026501-1,00034 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 · Nov 1, 2026 · View company records in RevenueBase
7Exact matchNorth Billerica, MA, United StatesHQ recorded Nov 1, 202611-5025 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 · Nov 1, 2026 · View company records in RevenueBase
8Exact matchDordrecht, NetherlandsHQ recorded Nov 1, 202651-20024 contacts →

Exact match

“Holland Shielding Systems develops and manufactures EMI, RFI & EMC shielding solutions.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
9Exact matchLiverpool, United KingdomHQ recorded Nov 1, 202651-20023 contacts →

Exact match

“MPE Limited, based in the UK, is the world’s leading manufacturer of high performance EMC/EMP, HEMP & TEMPEST filters and capacitor products for supply to the automotive, defence…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
10Exact matchTipp City, OH, United StatesHQ recorded Nov 1, 202651-20023 contacts →

Exact match

“Captor Corporation is an electrical/electronic manufacturing company based out of United States.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
11Exact matchSingaporeHQ recorded Nov 1, 202651-20023 contacts →

Exact match

“Glocom Engineering Pte Ltd is a company based out of Singapore.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
12Exact matchMunich, GermanyHQ recorded Nov 1, 202611-5022 contacts →

Exact match

“DENPAFLUX is the modern way for solving EMC/EMI challenges at any stage of hardware development.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
13Exact matchMilwaukee, WI, United StatesHQ recorded Nov 1, 202651-20020 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 · Nov 1, 2026 · View company records in RevenueBase
14Exact matchAlbuquerque, NM, United StatesHQ recorded Nov 1, 202651-20020 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 · Nov 1, 2026 · View company records in RevenueBase
15Exact matchMilan, ItalyHQ recorded Nov 1, 202651-20019 contacts →

Exact match

“EMI Solutions (EMIS) has been designing and manufacturing EMI filters for more than 40 years and is a global source for efficient EMI and EMC solutions across all industries…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
16Exact matchMedford, NY, United StatesHQ recorded Nov 1, 202611-5018 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
17Exact matchHawthorne, CA, United StatesHQ recorded Nov 1, 202611-5017 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 · Nov 1, 2026 · View company records in RevenueBase
18Exact matchNavi Mumbai, IndiaHQ recorded Nov 1, 202611-5015 contacts →

Exact match

“We are into design and manufacturing of Transformers, EMI filters, sine filter reactors, output chokes and Input chokes”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
19Exact matchSan Fernando, CA, United StatesHQ recorded Nov 1, 202651-20015 contacts →

Exact match

“Spira has been a trusted partner to the EMC community since 1978, delivering precision-engineered solutions for Electromagnetic Interference (EMI) and Radio-Frequency Interference…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
20Exact matchFredericksburg, VA, United StatesHQ recorded Nov 1, 202611-5014 contacts →

Exact match

“Whether it’s a research center, medical facility, laboratory, or commercial/residential high-rise buildings, Vitatech has the expertise and experience to provide guaranteed…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
21Exact matchBarentin, FranceHQ recorded Nov 1, 202611-5013 contacts →

Exact match

“JACQUES DUBOIS is an electrical/electronic manufacturing company based out of 614, Rue Auguste Badin, Barentin, Normandie, France.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
22Exact matchPortland, ME, United StatesHQ recorded Nov 1, 2026201-50011 contacts →

Exact match

“The Enerdoor Group is an international leader in the development and production of EMC solutions for automated and industrial machinery.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
23Exact matchJohnsonburg, NJ, United StatesHQ recorded Nov 1, 202611-509 contacts →

Exact match

“East Coast Shielding specializes in providing top-tier EMI gaskets, RFI shielding, and EMI RFI shielding solutions to meet our customers' unique demands.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
24Exact matchIrvine, CA, United StatesHQ recorded Nov 1, 202611-509 contacts →

Exact match

“EMI Solutions is a premier Southern California manufacturer of EMI Filters and Filtered Connectors and Transient Suppression products serving the Military, Medical and Industrial…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
25Exact matchBerlin, GermanyHQ recorded Nov 1, 202651-2008 contacts →

Exact match

“In a fast-changing and highly technological world our innovative products have a key role: without customized shielding solutions, cutting edge technologies might lose or never…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase

Showing 25 of 120 retrofit emi suppression filter suppliers worldwide

See the full list, filter by size, metro and specialty, and access 429 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Retrofit emi suppression filter suppliers worldwide at a glance

As of Nov 1, 2026
28.9%Verified-email coverage
12.4Average contacts per company
11-50Median size (employees)
3.3%Largest-city concentration · Shenzhen
Nov 1, 2026Page data refreshed

Companies by employee count

1-10
46
11-50
34
51-200
28
201-500
7
501-1,000
3
1,001-5,000
2

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for retrofit emi suppression filter suppliers are linked below.
What qualifies
Company records worldwide whose business descriptions match “retrofit emi suppression 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. 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 429 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 November 1, 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.

Retrofit emi suppression filter suppliers by location

1 lists · largest first

Every Retrofit emi suppression filter suppliers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “retrofit emi suppression filter suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many retrofit emi suppression filter suppliers are there worldwide?

RevenueBase identified 120 company matches for retrofit emi suppression filter suppliers worldwide as of November 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?

Elcom International Pvt. LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most retrofit emi suppression filter suppliers?

The United States leads with 32 companies. Every retrofit emi suppression filter suppliers list by country and city is linked on this page.

Which city has the most retrofit emi suppression filter suppliers?

Shenzhen leads with 4 company records, followed by Berlin (3) and Changzhou (3).

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 429 professional contacts with verified work emails tracked across these 120 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 November 1, 2026.

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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.