AI Visibility Index: Tanks & Pressure Vessels in Massachusetts

When a buyer asks an AI assistant for a tanks & pressure vessels supplier in Massachusetts, these are the companies that get named. This is what we found when the cell was last measured.

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

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The headline numbers

Never named by AI

67 of 77

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.

10 named at least once
67 never named

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Cell average: 0.69of 15
Across all 77 tracked companies.
Top ten average: 5.7of 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 Massachusetts

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

Top 10 most AI-visible Tanks & Pressure Vessels companies in Massachusetts, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Morrison Berkshire Inc. 42 employeesNorth Adams, Massachusetts 2 name variants Morrison Berkshire, Inc.most common12 Morrison Berkshire2	North Adams, Massachusetts	14 of 15 answers
2	BEPeterson Inc. 100 employeesAvon, Massachusetts 3 name variants BEPetersonmost common6 BEPeterson, Inc.5 BE Peterson1	Avon, Massachusetts	12 of 15 answers
3	Mass Tank Sales Corporation 25 employeesMiddleborough, Massachusetts 2 name variants Mass Tank Corpmost common4 Mass Tank3	Middleborough, Massachusetts	7 of 15 answers
4	Artisan Industries 80 employeesStoughton, Massachusetts 2 name variants Artisan Industries Inc.most common5 Artisan Industries1	Stoughton, Massachusetts	6 of 15 answers
5	Helfrich Brothers Boiler Works 35 employeesLawrence, Massachusetts	Lawrence, Massachusetts	6 of 15 answers
6	Fitchburg Welding Co., Inc. 35 employeesWestminster, Massachusetts 2 name variants Fitchburg Welding Co.most common2 Fitchburg Welding & Engineering1	Westminster, Massachusetts	3 of 15 answers
7	Boston Tech Fabrication Massachusetts	Massachusetts	3 of 15 answers
8	Plastic Design Inc. 22 employeesNorth Chelmsford, Massachusetts	North Chelmsford, Massachusetts	2 of 15 answers
9	Eastern Reliability (a Mass Tank company) Massachusetts	Massachusetts	2 of 15 answers
10	Indelco / Ayer Sales Fabrication Massachusetts	Massachusetts	2 of 15 answers

13 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 Massachusetts. They belong to that state's ranking, not this one.

Company	State	Mentions
Amherst Stainless Fabrication	New York	5 of 15
CommTank, Inc.	Ontario	3 of 15
Taco Comfort Solutions – Custom Fabricated Products	Rhode Island	2 of 15
Complete Mechanical Services (CMS)	New Mexico	1 of 15
Isotherm, Inc.	Texas	1 of 15
John Wood Company	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 suppliers of tanks and pressure vessels in Massachusetts”
2“Who supplies ASME-certified stainless steel process pressure vessels in Massachusetts”
3“I need a Massachusetts tank and pressure vessel partner for a custom chemical processing line, who should I talk to”
4“Top tanks and pressure vessels suppliers in Massachusetts for chemical plant engineering buyers”
5“Which Massachusetts tank and pressure vessel fabricators can handle large-diameter, high-pressure reactor vessels”
6“List 20 tanks and pressure vessels companies in Massachusetts 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
5 companies
bepeterson.com
3 companies
masstank.com
3 companies
artisanind.com
2 companies
commtank.com
2 companies
fitchweld.com
2 companies
members.stispfa.org
2 companies
morrisonberkshire.com
2 companies
goe-amhfab.com
1 company
ardeneng.com
1 company
bostontechfab.com
1 company
camposfabrication.com
1 company

38 sources were cited across this cell's answers from 27 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Massachusetts in context

Massachusetts ranks 6th of 17 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 10%.

Massachusetts (this report)Other measured statesCategory average (10%)

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