AI Visibility Index: Metal Fabrication Services in California

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

1,186 companies tracked
Last measured September 30, 2026
Next measurement October 30, 2026

Look up your company Get your monthly report

The headline numbers

Never named by AI

1,155 of 1,186

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.

31 named at least once
1,155 never named

Not sure whether you are one of them?Check your domain

Cell average: 0.04of 15
Across all 1,186 tracked companies.
Top ten average: 3.6of 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 California

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

Top 10 most AI-visible Metal Fabrication Services companies in California, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Freeberg Industrial Fabrication Corp. 85 employeesEscondido, California	Escondido, California	5 of 15 answers
2	D&B Precision Sheetmetal 11 employeesOakdale, California	Oakdale, California	4 of 15 answers
3	Will-Mann Inc 40 employeesFullerton, California 2 name variants Will‑Mann, Inc.most common3 Will‑Mann1	Fullerton, California	4 of 15 answers
4	Pen Manufacturing California	California	4 of 15 answers
5	TruFusion Steel California	California	4 of 15 answers
6	Andersen Industries Inc 20 employeesAdelanto, California	Adelanto, California	3 of 15 answers
7	Sheetmetal Engineering 26 employeesSimi Valley, California	Simi Valley, California	3 of 15 answers
8	Big Tool Manufacturing California	California	3 of 15 answers
9	Cass Customization California	California	3 of 15 answers
10	Lynx Enterprises California	California	3 of 15 answers

58 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 California. They belong to that state's ranking, not this one.

Company	State	Mentions
Trimap	Michigan	4 of 15
G.P. Manufacturing	Ohio	3 of 15
K Metal Work & Design	Illinois	3 of 15
CLEAR Manufacturing	Florida	2 of 15
METALfx	Illinois	2 of 15
Adams Iron Co.	Illinois	1 of 15

One of these yours?

A complete Blue Book listing is one of the sources assistants read in this category. Confirming your details is free.

Get your monthly report

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 metal fabrication companies in California”
2“Who supplies custom fabricated stainless steel frames in California”
3“I need a California metal fabrication partner for a 2,000 unit industrial enclosure run, who should I talk to”
4“Top metal fabrication services suppliers in California for OEM manufacturing buyers”
5“Which California metal fabricators can handle laser cutting, forming, and welding of 1 inch plate”
6“List 20 metal fabrication services companies in California 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.

clearmfg.com
3 companies
excelsiormetals.com
2 companies
pen-mfg.com
2 companies
ap-precision.com
2 companies
crossbrothersinc.com
2 companies
fabrication.yoshimasausa.com
2 companies
farweststeel.com
2 companies
responsiblemetal.com
2 companies
will-mann.com
2 companies
andersenmp.com
1 company
cresco-manufacturing.com
1 company
dbsheetmetal.com
1 company

77 sources were cited across this cell's answers from 69 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

California in context

California ranks 40th of 41 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 6%.

California (this report)Other measured statesCategory average (6%)

Look up a company

Enter a domain or a company name to see whether it is tracked in this cell, and whether the answers named it. This is a lookup against a measurement already taken, so it is instant.

Try freeberg.com or any other domain

The public Index publishes one measurement per cell. A monthly report covers your own company:

Every question it was named on
Every question it was not
What moved

Your own position is only ever shown to you.