AI Visibility Index: Structural Steel Fabrication in Pennsylvania

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

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

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The headline numbers

Never named by AI

123 of 143

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.

20 named at least once
123 never named

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Cell average: 0.54of 15
Across all 143 tracked companies.
Top ten average: 7.7of 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 Pennsylvania

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

Top 10 most AI-visible Structural Steel Fabrication companies in Pennsylvania, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Samuel Grossi 35 employeesEddington, Pennsylvania 5 name variants Samuel Grossi & Sons, Inc.most common7 Samuel Grossi & Sons (Grossi Steel)2 Samuel Grossi & Sons2 Samuel Grossi & Sons, Inc. (Grossi Steel)1 Grossi Steel1	Eddington, Pennsylvania	13 of 15 answers
2	Standard Iron Works 35 employeesScranton, Pennsylvania	Scranton, Pennsylvania	10 of 15 answers
3	Littell Steel Company Pennsylvania	Pennsylvania	9 of 15 answers
4	Schlosser Steel Inc 45 employeesHatfield, Pennsylvania 2 name variants Schlosser Steel, Inc.most common4 Schlosser Steel3	Hatfield, Pennsylvania	7 of 15 answers
5	Stewart-Amos Steel Inc. 44 employeesHarrisburg, Pennsylvania	Harrisburg, Pennsylvania	7 of 15 answers
6	Keystone Steel Fabricators Pennsylvania	Pennsylvania	7 of 15 answers
7	Ritner Steel Inc. 32 employeesCarlisle, Pennsylvania 2 name variants Ritner Steelmost common5 Ritner Steel, Inc.1	Carlisle, Pennsylvania	6 of 15 answers
8	Strait Steel Inc 65 employeesGreencastle, Pennsylvania	Greencastle, Pennsylvania	6 of 15 answers
9	Walco Fabricating Co 18 employeesPottsville, Pennsylvania 2 name variants Walco Fabricatingmost common5 Walco Fabricating Company1	Pottsville, Pennsylvania	6 of 15 answers
10	Kinsley Steel, Inc. Pennsylvania	Pennsylvania	6 of 15 answers

27 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 Pennsylvania. They belong to that state's ranking, not this one.

Company	State	Mentions
Somerset Steel Erection	Kentucky	3 of 15
MultiMetal Inc.	Alabama	2 of 15
Trinity Steel, Inc.	California	2 of 15
Buildings Inc.	Ohio	1 of 15
Greiner Industries, Inc.	Louisiana	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 structural steel fabrication companies in Pennsylvania”
2“Who supplies custom structural steel building frames in Pennsylvania”
3“I need a Pennsylvania structural steel fabrication partner for a mid-rise commercial project, who should I talk to”
4“Top structural steel fabrication suppliers in Pennsylvania for general contractor buyers”
5“Which Pennsylvania structural steel fabricators can handle large welded assemblies with certified field erection support”
6“List 20 structural steel fabrication companies in Pennsylvania 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.

grossisteel.com
5 companies
schlossersteel.com
3 companies
conewagomfg.com
3 companies
pennfab.com
2 companies
somersetsteel.com
2 companies
aisc.org
2 companies
aspstructures.com
2 companies
kinsleysteel.com
2 companies
ritnersteel.com
2 companies
stoneyridgefabs.com
2 companies
walcofabricating.com
2 companies
steelfabenterprises.com
1 company

43 sources were cited across this cell's answers from 38 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Pennsylvania in context

Pennsylvania ranks 7th 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%.

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

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