Question 1

What is I/O Link?

Accepted Answer

I/O Link is a fieldbus‑agnostic, point‑to‑point interface that enables reliable communication with sensors and actuators over a standard three‑wire connection at the field level.

Question 2

How many companies implement I/O Link?

Accepted Answer

Based on our data, 1,271 companies implement I/O Link. This number is updated daily as we discover new companies through job posting analysis.

Question 3

What types of companies implement I/O Link?

Accepted Answer

I/O Link is relevant across multiple industries including Automation Machinery Manufacturing, Machinery Manufacturing, Software Development. Companies range from startups to enterprises with 10,000+ employees.

Question 4

How does TheirStack track companies related to I/O Link?

Accepted Answer

TheirStack analyzes millions of job postings daily from company career pages, job boards, and recruitment platforms. When a company mentions I/O Link in their job descriptions, requirements, or responsibilities, we identify them as related to I/O Link and add them to our database.

Question 5

How can I get the full list of companies that implement I/O Link?

Accepted Answer

You can access the complete list of 1,271 companies on TheirStack. The data includes company name, industry, size, location, funding, and revenue. Available via our web app or API.

Question 6

How often is the company data updated?

Accepted Answer

Our database is refreshed daily. We continuously monitor job postings to detect new companies implementing I/O Link and update existing records.

Company	Country	Industry	Employees	Revenue	Technologies
Festo	Germany	Automation Machinery Manufacturing	21k	$3.8B	I/O Link
Rockwell Automation	United States	Automation Machinery Manufacturing	25k	$7.8B	I/O Link
ATC Automation	United States	Machinery Manufacturing	244	$35M	I/O Link
Amazon	United States	Software Development	802k		I/O Link
Analog Devices	United States	Semiconductor Manufacturing	27k	$8.4B	I/O Link
Magna International	Canada	Motor Vehicle Manufacturing	158k	$40B	I/O Link
Siemens	Germany	Automation Machinery Manufacturing	311k	$73B	I/O Link
ifm	Germany	Automation Machinery Manufacturing	10k	$1B	I/O Link
Mogi I/O : OTT/Podcast/Short Video Apps for you	India	Software Development	61		I/O Link
AMD	United States	Semiconductor Manufacturing	65k	$23B	I/O Link

Companies implementing I/O Link

List of companies that implement I/O Link