AI Visibility Index: Structural Steel Fabrication in Michigan

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

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

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The headline numbers

Never named by AI

93 of 108

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.

15 named at least once
93 never named

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Cell average: 0.54of 15
Across all 108 tracked companies.
Top ten average: 5.9of 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 Michigan

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

Top 10 most AI-visible Structural Steel Fabrication companies in Michigan, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Casadei Structural Steel Inc 13 employeesSterling Heights, Michigan 2 name variants Casadei Steel, Inc.most common11 Casadei Structural Steel, Inc.1	Sterling Heights, Michigan	12 of 15 answers
2	Campbell & Shaw Steel, Inc 11 employeesMarysville, Michigan 2 name variants Campbell & Shaw Steelmost common6 Campbell & Shaw Steel, Inc.3	Marysville, Michigan	9 of 15 answers
3	Steel Supply & Engineering 45 employeesGrand Rapids, Michigan 3 name variants Steel Supply & Engineeringmost common7 Steel Supply & Engineering (SS&E)1 Steel Supply & Engineering Co.1	Grand Rapids, Michigan	9 of 15 answers
4	Trait, LLC Michigan	Michigan	7 of 15 answers
5	Douglas Steel Fabricating Corporation 225 employeesLansing, Michigan	Lansing, Michigan	6 of 15 answers
6	Nacy Engineering & Fabrication 10 employeesPontiac, Michigan 3 name variants Nacy Engineering & Fabricationmost common2 Nacy Engineering & Fabrication, Inc.1 Nacy Engineering & Fabrication, LLC1	Pontiac, Michigan	4 of 15 answers
7	Van Dellen Steel Inc 31 employeesDutton, Michigan 2 name variants Van Dellen Steel, Inc.most common3 Van Dellen Steel1	Dutton, Michigan	4 of 15 answers
8	IronMann Industries Michigan	Michigan	4 of 15 answers
9	Bristol Steel Conveyor Corporation 150 employeesDavison, Michigan 2 name variants Bristol Steel & Conveyor Corp.most common1 Bristol Steel1	Davison, Michigan	2 of 15 answers
10	Delta Steel Inc. 7 employeesSaginaw, Michigan	Saginaw, Michigan	2 of 15 answers

20 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 Michigan. They belong to that state's ranking, not this one.

Company	State	Mentions
Midwest Steel, Inc.	Texas	12 of 15
Liberty Fabricators, Inc.	New York	4 of 15
Howard Steel	North Carolina	2 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 structural steel fabrication companies in Michigan”
2“Who supplies custom structural steel building frames in Michigan”
3“I need a Michigan structural steel fabrication partner for a mid-rise commercial project, who should I talk to”
4“Top structural steel fabrication suppliers in Michigan for general contractor buyers”
5“Which Michigan structural steel fabricators can handle large welded assemblies with certified field erection support”
6“List 20 structural steel fabrication companies in Michigan 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.

cambuyersguide.com
4 companies
thomasnet.comDirectory
4 companies
nacyfab.com
3 companies
casadeisteel.com
2 companies
campbellshawsteel.com
2 companies
howard-steel.com
2 companies
steelsupplyengineering.com
2 companies
libertyfab.com
2 companies
vandellensteel.com
2 companies
abmrack.com
1 company
billscustomfab.com
1 company
commercialstairworks.com
1 company

35 sources were cited across this cell's answers from 29 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Michigan in context

Michigan ranks 8th of 19 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 11%.

Michigan (this report)Other measured statesCategory average (11%)

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