AI Visibility Index: Precision Grinding Services in Pennsylvania

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

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

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The headline numbers

Never named by AI

114 of 136

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.

22 named at least once
114 never named

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Cell average: 0.5of 15
Across all 136 tracked companies.
Top ten average: 5.6of 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 Pennsylvania

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

Top 10 most AI-visible Precision Grinding Services companies in Pennsylvania, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Venango Machine Company 15 employeesWattsburg, Pennsylvania	Wattsburg, Pennsylvania	10 of 15 answers
2	Pennsylvania Precision Products Inc. 7 employeesVandergrift, Pennsylvania	Vandergrift, Pennsylvania	9 of 15 answers
3	AB Precision Grinding Co. Pennsylvania 2 name variants AB Precision Grinding Co.most common4 AB Precision Grinding2	Pennsylvania	6 of 15 answers
4	Aggressive Grinding Services Inc 75 employeesLatrobe, Pennsylvania 2 name variants Aggressive Grinding Service, Inc.most common4 Aggressive Grinding Service1	Latrobe, Pennsylvania	5 of 15 answers
5	Custom Engineering Co. 50 employeesErie, Pennsylvania 2 name variants Custom Engineering Co.most common4 Custom Engineering / Precision Machining Division1	Erie, Pennsylvania	5 of 15 answers
6	NTM, Inc. 35 employeesNewport, Pennsylvania 2 name variants NTM Inc.most common4 Newport Tool & Machine (NTM)1	Newport, Pennsylvania	5 of 15 answers
7	Area Tool & Manufacturing Inc 15 employeesMeadville, Pennsylvania 2 name variants Area Tool & Manufacturing, Inc.most common3 Area Tool & Manufacturing1	Meadville, Pennsylvania	4 of 15 answers
8	Disston Precision Inc 35 employeesPhiladelphia, Pennsylvania	Philadelphia, Pennsylvania	4 of 15 answers
9	Pennco Tool & Die Inc 19 employeesMeadville, Pennsylvania	Meadville, Pennsylvania	4 of 15 answers
10	Erie Precision Grinding Pennsylvania	Pennsylvania	4 of 15 answers

24 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 Pennsylvania. They belong to that state's ranking, not this one.

Company	State	Mentions
Blue Streak Grinding	Arizona	2 of 15
Addison Precision Manufacturing	New York	1 of 15
Bluestreak Grinding	Arizona	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 Pennsylvania”
2“Who supplies precision surface grinding for hardened tool steel plates in Pennsylvania”
3“I need a Pennsylvania precision grinding partner for a tight-tolerance hydraulic shaft production run, who should I talk to”
4“Top precision grinding services suppliers in Pennsylvania for aerospace machining buyers”
5“Which Pennsylvania precision grinders can hold flatness within 0.0002 inch on large plates”
6“List 20 precision grinding services companies in Pennsylvania 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.

customeng.com
2 companies
abprecision.com
2 companies
areatool.com
2 companies
bluestreakgrinding.com
2 companies
imperialnewbould.com
2 companies
ntminc.net
2 companies
pennunited.com
2 companies
rmmcoinc.com
2 companies
aggressivegrinding.com
1 company
erieprecisiongrinding.com
1 company
penncotool.com
1 company
acerollandshaft.com
1 company

45 sources were cited across this cell's answers from 41 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Pennsylvania in context

Pennsylvania ranks 9th 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%.

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

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