AI Visibility Index: Metal Stampings in Connecticut

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

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

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The headline numbers

Never named by AI

106 of 131

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.

25 named at least once
106 never named

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Cell average: 0.76of 15
Across all 131 tracked companies.
Top ten average: 7.6of 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 Connecticut

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

Top 10 most AI-visible Metal Stampings companies in Connecticut, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Companion Industries, Inc. 70 employeesSouthington, Connecticut 2 name variants Companion Industriesmost common13 Companion Industries Inc.1	Southington, Connecticut	14 of 15 answers
2	GEMCO Manufacturing Co. Inc. 225 employeesSouthington, Connecticut 3 name variants Gemco Manufacturingmost common9 GEMCO Manufacturing Co., Inc.4 GEMCO Manufacturing Co.1	Southington, Connecticut	14 of 15 answers
3	CSS (Connecticut Spring & Stamping) 15 employeesFarmington, Connecticut 2 name variants Connecticut Spring & Stamping (CSS)most common10 CSS – Connecticut Spring & Stamping1	Farmington, Connecticut	11 of 15 answers
4	Atlantic Precision Spring Inc 50 employeesBristol, Connecticut · 2 locations 3 name variants Atlantic Precision Springmost common4 Atlantic Precision Spring (APS)3 Atlantic Precision Spring, Inc.1	Bristol, Connecticut2 locations	8 of 15 answers
5	Southington Tool & Mfg. Corp. 7 employeesPlantsville, Connecticut 3 name variants Southington Tool & Manufacturing Corp. (STMC)most common4 Southington Tool & Manufacturing Corp.3 Southington Tool & Manufacturing (STMC)1	Plantsville, Connecticut	8 of 15 answers
6	Marion Manufacturing Company 35 employeesCheshire, Connecticut 2 name variants Marion Manufacturingmost common5 Marion Manufacturing Company2	Cheshire, Connecticut	7 of 15 answers
7	Metallon Inc 50 employeesThomaston, Connecticut 2 name variants Metallon, Inc.most common3 Metallon1	Thomaston, Connecticut	4 of 15 answers
8	Stewart EFI LLC 36 employeesThomaston, Connecticut	Thomaston, Connecticut	4 of 15 answers
9	Arcade Metal Stamping 80 employeesBridgeport, Connecticut	Bridgeport, Connecticut	3 of 15 answers
10	G&R Manufacturing - Haversat Holdings LLC 35 employeesNaugatuck, Connecticut	Naugatuck, Connecticut	3 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 Connecticut. They belong to that state's ranking, not this one.

Company	State	Mentions
Lyons	Illinois	5 of 15
Engineering Specialties Inc. (ESI)	Oregon	2 of 15
Associated Spring (APS / Barnhart)	Pennsylvania	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 metal stampings companies in Connecticut”
2“Who supplies custom progressive die metal stampings in Connecticut”
3“I need a Connecticut metal stampings partner for a 100,000 unit appliance bracket run, who should I talk to”
4“Top metal stampings suppliers in Connecticut for automotive OEM buyers”
5“Which Connecticut metal stampings companies can handle high-volume stainless steel progressive die work”
6“List 20 metal stampings companies in Connecticut 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
11 companies
aps-ct.com
4 companies
stmc.com
3 companies
gemcomfg.com
3 companies
lyons.com
3 companies
ctspring.com
2 companies
companionind.com
2 companies
marionmfg.net
2 companies
metallon.com
2 companies
waterburycontract.com
2 companies
stewartefi.com
1 company
arcademetalstamping.com
1 company

35 sources were cited across this cell's answers from 25 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Connecticut in context

Connecticut ranks 2nd of 20 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 9%.

Connecticut (this report)Other measured statesCategory average (9%)

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