AI Visibility Index: Precision Grinding Services in Massachusetts

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

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

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The headline numbers

Never named by AI

65 of 80

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.

15 named at least once
65 never named

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Cell average: 0.71of 15
Across all 80 tracked companies.
Top ten average: 5.3of 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 Precision Grinding Services companies in Massachusetts, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Accurate Tool 7 employeesLakeville, Massachusetts 2 name variants Accurate Tool and Machine, Inc.most common7 Accurate Tool and Machine3	Lakeville, Massachusetts	10 of 15 answers
2	Duval Precision Grinding 19 employeesChicopee, Massachusetts	Chicopee, Massachusetts	9 of 15 answers
3	Trilap Precision Finishing, LLC 6 employeesLowell, Massachusetts	Lowell, Massachusetts	9 of 15 answers
4	Boston Centerless 5 employeesWoburn, Massachusetts	Woburn, Massachusetts	6 of 15 answers
5	Villa Machine Associates Inc. 8 employeesDedham, Massachusetts 2 name variants Villa Machine Associates, Inc.most common3 Villa Machine Associates3	Dedham, Massachusetts	6 of 15 answers
6	FH Peterson Machine Corp 60 employeesStoughton, Massachusetts	Stoughton, Massachusetts	4 of 15 answers
7	GS Microteck Massachusetts	Massachusetts	3 of 15 answers
8	Brodeur Machine Company, Inc. 68 employeesNew Bedford, Massachusetts 2 name variants Brodeur Machine Company, Inc.most common1 Brodeur Machine Company1	New Bedford, Massachusetts	2 of 15 answers
9	Jaquith Carbide Corporation 8 employeesRowley, Massachusetts 2 name variants Jaquith Carbide Corp.most common1 Jaquith Carbide1	Rowley, Massachusetts	2 of 15 answers
10	Rock Valley Tool LLC 30 employeesEasthampton, Massachusetts	Easthampton, Massachusetts	2 of 15 answers

14 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
A&G Centerless Grinding	Ontario	5 of 15
D & B Machining, Inc.	Rhode Island	2 of 15
Edro Engineering / Edro US	California	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 precision grinding services companies in Massachusetts”
2“Who supplies precision surface grinding for hardened tool steel plates in Massachusetts”
3“I need a Massachusetts precision grinding partner for a tight-tolerance hydraulic shaft production run, who should I talk to”
4“Top precision grinding services suppliers in Massachusetts for aerospace machining buyers”
5“Which Massachusetts precision grinders can hold flatness within 0.0002 inch on large plates”
6“List 20 precision grinding services 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.

accuratetoolandmachine.com
2 companies
valleydesign.com
2 companies
bbb.orgDirectory
2 companies
brodeurmachine.com
2 companies
jaquithcarbide.com
2 companies
peerlessprecision.com
2 companies
villamachine.com
2 companies
duvalgrinding.com
1 company
trilap.net
1 company
agcenterless.com
1 company
arroengineering.com
1 company
bostoncenterless.com
1 company

33 sources were cited across this cell's answers from 28 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 7th of 14 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 17%.

Massachusetts (this report)Other measured statesCategory average (17%)

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