AI Visibility Index: Pipe & Tube Fittings in Wisconsin

When a buyer asks an AI assistant for a pipe & tube fittings supplier in Wisconsin, these are the companies that get named. This is what we found when the cell was last measured.

78 companies tracked
Last measured September 30, 2026
Next measurement October 30, 2026

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The headline numbers

Never named by AI

60 of 78

companies never appeared in a single buying question

They were asked the same 5 buying questions as everyone else in this cell and were not named once.

18 named at least once
60 never named

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Cell average: 0.54of 15
Across all 78 tracked companies.
Top ten average: 4.4of 15
The ten most visible companies in the cell.

A company's score is how many of the 15 measured answers named it.

The top ten in Wisconsin

These are the companies AI assistants named most often when Wisconsin buyers went looking for a supplier in this category.

Top 10 most AI-visible Pipe & Tube Fittings companies in Wisconsin, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Advance Fittings 39 employeesElkhorn, Wisconsin	Elkhorn, Wisconsin	7 of 15 answers
2	Fox Valley Fittings & Controls 7 employeesNeenah, Wisconsin 2 name variants Fox Valley Fittings & Controlsmost common5 Fox Valley Fittings & Controls, Inc.1	Neenah, Wisconsin	6 of 15 answers
3	HFI Fluid Power Products 50 employeesRacine, Wisconsin	Racine, Wisconsin	5 of 15 answers
4	Wisconsin Steel & Tube Corporation 50 employeesMilwaukee, Wisconsin 2 name variants Wisconsin Steel & Tubemost common3 Wisconsin Steel & Tube Corp.2	Milwaukee, Wisconsin	5 of 15 answers
5	APN Wisconsin Wisconsin	Wisconsin	5 of 15 answers
6	Doig Corporation Wisconsin	Wisconsin	4 of 15 answers
7	Felker Brothers Corporation 350 employeesMarshfield, Wisconsin 2 name variants Felker Brothers Corp.most common2 Felker Brothers Corporation1	Marshfield, Wisconsin	3 of 15 answers
8	Appleton Stainless Inc. Wisconsin 2 name variants Appleton Stainless Inc.most common2 Appleton Stainless1	Wisconsin	3 of 15 answers
9	Badger Sanitary & Stainless Wisconsin	Wisconsin	3 of 15 answers
10	Sanitary Fittings Wisconsin	Wisconsin	3 of 15 answers

25 more companies were named at least once. Companies outside the top ten are counted in the averages but not named here.

Also named, based in another state

AI assistants named these companies too, but MacRAE'S lists them in a different state, not Wisconsin. They belong to that state's ranking, not this one.

Company	State	Mentions
Service Steel & Supply	Puerto Rico	9 of 15
United P&H Supply Co.	Connecticut	3 of 15
Alliance Metals Group	Texas	2 of 15
Centec LLC	Michigan	2 of 15
Arntzen Corporation	Illinois	1 of 15
FORCE America – Waukesha	North Dakota	1 of 15

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The five questions we asked

Every company in this cell is measured on the same questions, written the way a buyer would type them. That is what makes the ranking a comparison rather than a collection of anecdotes.

1“Best suppliers of pipe and tube fittings in Wisconsin”
2“Who supplies stainless steel sanitary tri-clamp fittings in Wisconsin”
3“I need a Wisconsin pipe and tube fittings partner for a high-pressure chemical process line installation, who should I talk to”
4“Top pipe and tube fittings suppliers in Wisconsin for industrial maintenance buyers”
5“Which Wisconsin pipe and tube fittings distributors can handle large-diameter, high-pressure alloy specifications”
6“List 20 pipe and tube fittings companies in Wisconsin with their specialties.”the roster question

Each question is asked more than once, which is why a company's score is out of 15 answers rather than out of the number of questions.

Where AI drew its answers from

These are the sources the answers in this cell leaned on most, ranked by how many of the named companies each one stands behind.

thomasnet.comDirectory
11 companies
foxvalleyfittings.com
2 companies
enerpipeinc.com
2 companies
felkerbrothers.com
2 companies
rmueller.com
2 companies
stainlesssteelfitting.co
2 companies
wisteeltube.com
2 companies
advancefittings.com
1 company
appletonstainless.com
1 company
servicesteelandsupply.com
1 company
amgomro.com
1 company
apn-wi.com
1 company

45 sources were cited across this cell's answers from 36 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Wisconsin in context

Wisconsin ranks 2nd of 15 measured states in this category. Each bar is the share of that state's tracked companies that AI assistants named at least once; across every measured state in this category the share is 14%.

Wisconsin (this report)Other measured statesCategory average (14%)

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