AI Visibility Index: Metal Fabrication Services in Maryland

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

175 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

151 of 175

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.

24 named at least once
151 never named

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

Cell average: 0.28of 15
Across all 175 tracked companies.
Top ten average: 4.2of 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 Maryland

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

Top 10 most AI-visible Metal Fabrication Services companies in Maryland, measured September 30, 2026
Rank	Company	Location	AI visibility
1	De Perini Metal Fabricators 32 employeesGaithersburg, Maryland 2 name variants De Perini Metal Fabricators, Inc.most common3 De Perini Metal Fabricators3	Gaithersburg, Maryland	6 of 15 answers
2	JG Edelen Manufacturing Maryland	Maryland	6 of 15 answers
3	Central Precision Inc 30 employeesBoonsboro, Maryland	Boonsboro, Maryland	5 of 15 answers
4	Pro-Fabricators LLC 24 employeesSmithsburg, Maryland	Smithsburg, Maryland	5 of 15 answers
5	Koppers Fabricators Inc 10 employeesForestville, Maryland	Forestville, Maryland	4 of 15 answers
6	TMT Fab Maryland	Maryland	4 of 15 answers
7	Adj Sheet Metal Inc 100 employeesWhite Plains, Maryland	White Plains, Maryland	3 of 15 answers
8	EDCO Fabrication Maryland	Maryland	3 of 15 answers
9	J.M. Gillin Electrical Enclosures Maryland	Maryland	3 of 15 answers
10	Rockville Steel & Manufacturing Co. Maryland	Maryland	3 of 15 answers

47 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 Maryland. They belong to that state's ranking, not this one.

Company	State	Mentions
Mid-Atlantic Steel Fab	New Jersey	2 of 15
A&E Manufacturing Company	Pennsylvania	1 of 15
B&B Manufacturing, Inc.	Kentucky	1 of 15
Maysteel Industries	Wisconsin	1 of 15
Mid‑Atlantic Steel Fabrication	New Jersey	1 of 15
Prestige MFG	Nebraska	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 Maryland”
2“Who supplies custom fabricated stainless steel frames in Maryland”
3“I need a Maryland metal fabrication partner for a 2,000 unit industrial enclosure run, who should I talk to”
4“Top metal fabrication services suppliers in Maryland for OEM manufacturing buyers”
5“Which Maryland metal fabricators can handle laser cutting, forming, and welding of 1 inch plate”
6“List 20 metal fabrication services companies in Maryland 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
10 companies
metalfabricationcompanies.com
6 companies
noramark.com
3 companies
llinc.net
2 companies
strombergmetals.com
2 companies
deperini.com
2 companies
masteelfab.com
2 companies
mdfab.com
2 companies
patuxentmillworks.com
2 companies
adjsheetmetal.com
1 company
edcofabrication.com
1 company
jgedelenmfg.com
1 company

59 sources were cited across this cell's answers from 49 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Maryland in context

Maryland ranks 8th 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%.

Maryland (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 deperini.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.