AI Visibility Index: Stainless Steel Fabrication in Wisconsin

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

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

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The headline numbers

Never named by AI

65 of 83

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
65 never named

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Cell average: 0.59of 15
Across all 83 tracked companies.
Top ten average: 6.5of 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 Stainless Steel Fabrication companies in Wisconsin, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Plymouth Industries Inc 45 employeesPlymouth, Wisconsin 2 name variants Plymouth Industriesmost common8 Plymouth Industries, Inc.2	Plymouth, Wisconsin	10 of 15 answers
2	Custom Fabricating & Repair 12 employeesMarshfield, Wisconsin	Marshfield, Wisconsin	8 of 15 answers
3	Alpha Process & Installation Wisconsin 2 name variants Alpha Process & Installationmost common6 Alpha Process and Installation, LLC1	Wisconsin	7 of 15 answers
4	Countryside Fabrication Wisconsin 2 name variants Countryside Fabricationmost common4 Countryside Fabrication, Inc.3	Wisconsin	7 of 15 answers
5	APN Wisconsin Inc. Wisconsin 2 name variants APN Wisconsin Inc.most common4 APN Wisconsin2	Wisconsin	6 of 15 answers
6	Ben H. Anderson Manufacturing Wisconsin	Wisconsin	6 of 15 answers
7	Ullmer’s Dairy Equipment & Fabrication Wisconsin	Wisconsin	6 of 15 answers
8	Wicked Welding & Fabrication Wisconsin	Wisconsin	6 of 15 answers
9	R. Mueller Stainless Wisconsin	Wisconsin	5 of 15 answers
10	Apache Stainless Equipment Corp. 165 employeesBeaver Dam, Wisconsin 2 name variants Apache Stainless Equipment Corporationmost common3 Apache Stainless / Mepaco1	Beaver Dam, Wisconsin	4 of 15 answers

41 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
Damian Services & Supplies (DSS)	Illinois	4 of 15
Seitz Stainless	Minnesota	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 stainless steel fabrication companies in Wisconsin”
2“Who supplies custom stainless steel process tanks with welded fittings in Wisconsin”
3“I need a Wisconsin stainless steel fabrication partner for a short-run sanitary equipment build, who should I talk to”
4“Top stainless steel fabrication suppliers in Wisconsin for food and beverage plant engineering buyers”
5“Which Wisconsin stainless steel fabricators can handle TIG welding of thin-gauge stainless assemblies”
6“List 20 stainless steel fabrication 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.

apsstainless.com
2 companies
plyind.com
2 companies
alphaprocess.biz
2 companies
apn-wi.com
2 companies
countrysidefab.com
2 companies
finelinefab.com
2 companies
forefrontmechanical.com
2 companies
metalmasterswi.com
2 companies
apfabsolutions.com
1 company
benhanderson.com
1 company
membranepc.com
1 company
ullmers.com
1 company

60 sources were cited across this cell's answers from 53 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 12 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 15%.

Wisconsin (this report)Other measured statesCategory average (15%)

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