AI Visibility Index: Precision Grinding Services in Indiana

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

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

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The headline numbers

Never named by AI

90 of 109

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.

19 named at least once
90 never named

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Cell average: 0.55of 15
Across all 109 tracked companies.
Top ten average: 5.2of 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 Indiana

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

Top 10 most AI-visible Precision Grinding Services companies in Indiana, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Indiana Precision Grinding 28 employeesIndianapolis, Indiana	Indianapolis, Indiana	14 of 15 answers
2	ISSI Engineering and Machining 11 employeesIndianapolis, Indiana 2 name variants ISSI Engineering & Machiningmost common8 Integrated Scotch Industries / ISSI Engineering & Machining1	Indianapolis, Indiana	9 of 15 answers
3	Midwest Accurate Grinding Services 10 employeesLowell, Indiana 2 name variants Midwest Accurate Grinding Servicemost common3 Midwest Accurate Grinding Service, Inc.2	Lowell, Indiana	5 of 15 answers
4	Alexander Screw Products 38 employeesIndianapolis, Indiana 2 name variants Alexander Screw Productsmost common3 Alexander Screw Products – Precision Finishing1	Indianapolis, Indiana	4 of 15 answers
5	Triangle Engineering Corporation 40 employeesIndianapolis, Indiana	Indianapolis, Indiana	4 of 15 answers
6	South Bend Form Tool Products Indiana	Indiana	4 of 15 answers
7	C M Grinding Inc 10 employeesSouth Bend, Indiana	South Bend, Indiana	3 of 15 answers
8	C&A Tool Engineering, INC. 60 employeesChurubusco, Indiana	Churubusco, Indiana	3 of 15 answers
9	Kellco Precision Machine 5 employeesGeorgetown, Indiana	Georgetown, Indiana	3 of 15 answers
10	Kent Machine Inc 25 employeesPendleton, Indiana	Pendleton, Indiana	3 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 Indiana. They belong to that state's ranking, not this one.

Company	State	Mentions
First Gear, Inc.	Iowa	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 Indiana”
2“Who supplies precision surface grinding for hardened tool steel plates in Indiana”
3“I need a Indiana precision grinding partner for a tight-tolerance hydraulic shaft production run, who should I talk to”
4“Top precision grinding services suppliers in Indiana for aerospace machining buyers”
5“Which Indiana precision grinders can hold flatness within 0.0002 inch on large plates”
6“List 20 precision grinding services companies in Indiana 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
6 companies
issindy.com
2 companies
alexanderscrew.com
2 companies
master-induction.com
2 companies
mep.purdue.edu
2 companies
midwestaccurate.com
2 companies
mwaindy.com
2 companies
sbform.com
2 companies
cmgrinding.com
1 company
aem-mfg.com
1 company
amprservices.com
1 company
catalysthydraulic.com
1 company

35 sources were cited across this cell's answers from 30 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Indiana in context

Indiana ranks 8th 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%.

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

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