Company lists · Data refreshed October 2026

Top 25 Ethernet i/o devices suppliers worldwide

RevenueBase identified 136 company matches for ethernet i/o devices suppliers worldwide as of October 2026 and tracks 1,621 professional contacts across them, including 618 with verified work emails. Shenzhen is the largest hub.

This list covers company matches for ethernet i/o devices 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 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 25, 2026 How this list was built
136Companies
1,621Contacts tracked
618Verified emails
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The 25 largest ethernet i/o devices suppliers worldwide

Ranked by team size
Top 25 of 136 company matches for ethernet i/o devices suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 25, 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 matchHattersheim Am Main, JapanHQ recorded Oct 25, 2026201-500120 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
2Exact matchTemecula, CA, United StatesHQ recorded Oct 25, 2026201-500116 contacts →

Exact match

“For 50 years, OEMs, machine builders, system integrators, and IT and operations personnel have looked to Opto 22 for innovative automation products at an affordable price.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
3Exact matchSan Jose, CA, United StatesHQ recorded Oct 25, 202651-200101 contacts →

Exact match

“At Ethernovia we're building the nervous system for intelligent machines.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
4Exact match新北市, TaiwanHQ recorded Oct 25, 2026201-50078 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
5Exact matchBellevue, WA, United StatesHQ recorded Oct 25, 202651-20074 contacts →

Exact match

“Solutions Geared for Industrial Applications® Since 1983, Spectrum Controls has continued to be the premier provider of hardware and related software products for the industrial…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
6Exact matchNeckartenzlingen, GermanyHQ recorded Oct 25, 20265,001-10,00074 contacts →

Exact match

“Durch die Kombination von wirtschaftlichem Know-how mit den technologisch fortschrittlichsten Produkten unserer führenden Marken Belden®, GarrettCom®, Hirschmann™ and Lumberg…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
7Exact matchRocky Hill, CT, United StatesHQ recorded Oct 25, 202651-20058 contacts →

Exact match

“HESCO is the leading industrial automation solutions and industrial networking services provider in Connecticut.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8Exact matchDublin 12, IrelandHQ recorded Oct 25, 202651-20056 contacts →

Exact match

“Westermo Ireland (formally Virtual Access) is part of the Westermo Group.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
9Exact match台北市, TaiwanHQ recorded Oct 25, 2026201-50051 contacts →

Exact match

“Founded in 2012, Emplus Technology is an Industrial AI infrastructure platform provider specializing in industrial networking, edge computing, wireless mobility, and intelligent…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
10Exact matchÉrd, HungaryHQ recorded Oct 25, 202651-20046 contacts →

Exact match

“CASON is a producer and supplier of products and technologies for wide area industrial systems.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
11Exact matchPune, IndiaHQ recorded Oct 25, 202611-5043 contacts →

Exact match

“We design and build robust devices to Connect, Communicate and Collaborate with systems, processes and people.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12Exact matchSesto Fiorentino (fi), ItalyHQ recorded Oct 25, 202611-5034 contacts →

Exact match

“VDS Rail designs and manufactures EN 50155 compliant onboard communication systems for rolling stock, with a focus on highly reliabile Ethernet networking architectures and HMIs.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13Exact matchLas Vegas, NV, United StatesHQ recorded Oct 25, 202611-5034 contacts →

Exact match

“Antaira Technologies is a leading developer and manufacturer that provides high-quality industrial networking and communication product solutions.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
14Exact matchCalw, GermanyHQ recorded Oct 25, 202651-20030 contacts →

Exact match

“H.team GmbH Co.KG is an industrial automation company based out of Calw, Baden-Württemberg, Germany.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
15Exact matchHyderabad, IndiaHQ recorded Oct 25, 202611-5029 contacts →

Exact match

“RN Embedded Solutions Pvt.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16Exact matchNew Taipei City, TaiwanHQ recorded Oct 25, 202651-20029 contacts →

Exact match

“From Taiwan to the World, Volktek's Automation Business Journey Filled with Passion and Vision" This journey began with the name "Volktek," which originates from German, standing…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
17Exact matchPadua, ItalyHQ recorded Oct 25, 202651-20025 contacts →

Exact match

“With over 35 years manufacturing in the industrial automation field, SENECA has grown to be a major force in the signal conditioning and “ModBUS” I/O arenas.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
18Exact matchHsinchu, TaiwanHQ recorded Oct 25, 202651-20025 contacts →

Exact match

“ASIX Electronics Corporation is a leading IC design company for Industrial/Embedded networking and I/O connectivity solutions.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19Exact matchJakarta Barat, IndonesiaHQ recorded Oct 25, 202611-5024 contacts →

Exact match

“Working closely with world's leading manufacturers, Alvasta provide high quality industrial networking products for system integrators and value added resellers.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
20Exact matchDowners Grove, IL, United StatesHQ recorded Oct 25, 202651-20021 contacts →

Exact match

“Contemporary Controls is a leading manufacturer of unique and innovative products for the industrial and building automation industries leveraging technologies such as BACnet…”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21Exact matchNibley, UT, United StatesHQ recorded Oct 25, 202611-5014 contacts →

Exact match

“ControlByWeb™ Ethernet I/O products provide an easy and reliable way to monitor and control devices over a network.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22Exact matchSt. Jacobs, ON, CanadaHQ recorded Oct 25, 202611-5013 contacts →

Exact match

“For over 40 years, we've been a trusted industrial automation and connectivity partner across Canada, delivering innovative solutions and products.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23Exact matchBarcelona, SpainHQ recorded Oct 25, 20261-1013 contacts →

Exact match

“S-Connect S.L fue creada en primavera 2008 como filial española del grupo pan-europeo SPHINX Computer Vertriebs GmbH group of companies.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24Exact matchTaiwanHQ recorded Oct 25, 202611-509 contacts →

Exact match

“Antaira Technologies, a high-quality industrial networking and communication product brand, was established in California, United States in 2005.”

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25Exact matchMooresville, NC, United StatesHQ recorded Oct 25, 20261-108 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase

Showing 25 of 136 ethernet i/o devices suppliers worldwide

See the full list, filter by size, metro and specialty, and access 618 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ethernet i/o devices suppliers worldwide at a glance

As of Oct 25, 2026
38.1%Verified-email coverage
11.9Average contacts per company
11-50Median size (employees)
8.1%Largest-city concentration · Shenzhen
Oct 25, 2026Page data refreshed

Companies by employee count

1-10
48
11-50
36
51-200
33
201-500
14
501-1,000
3
5,001-10,000
1

Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 136 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 worldwide whose business descriptions match “ethernet i/o devices 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 618 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 “ethernet i/o devices suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ethernet i/o devices suppliers are there worldwide?

RevenueBase identified 136 company matches for ethernet i/o devices suppliers worldwide 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?

Hilscher Gesellschaft FÜR Systemautomation MBH tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most ethernet i/o devices suppliers?

Shenzhen leads with 11 company records, followed by Pune (4) and Birmingham (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 618 professional contacts with verified work emails tracked across these 136 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.

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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.