AI Visibility Index: Contract Machining & Machine Shops in Indiana

When a buyer asks an AI assistant for a contract machining & machine shops supplier in Indiana, these are the companies that get named. This is what we found when the cell was last measured.

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

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The headline numbers

Never named by AI

381 of 407

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.

26 named at least once
381 never named

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Cell average: 0.13of 15
Across all 407 tracked companies.
Top ten average: 4.7of 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 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 Contract Machining & Machine Shops companies in Indiana, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Olson Custom Designs Indiana 2 name variants Olson Custom Designs (OCD)most common5 Olson Custom Designs3	Indiana	8 of 15 answers
2	GMI Corporation 50 employeesFranklin, Indiana 2 name variants GMI Corporationmost common5 GMI Corp1	Franklin, Indiana	6 of 15 answers
3	Major Tool & Machine 8 employeesIndianapolis, Indiana	Indianapolis, Indiana	6 of 15 answers
4	Northside Machine Co 24 employeesDugger, Indiana	Dugger, Indiana	5 of 15 answers
5	Northside Machine & Tool Inc 10 employeesFrankfort, Indiana 2 name variants Northside Machine & Tool, Inc.most common2 Northside Machine & Tool2	Frankfort, Indiana	4 of 15 answers
6	Parametric Machining, Inc. 5 employeesHuntertown, Indiana	Huntertown, Indiana	4 of 15 answers
7	Resolute Precision Manufacturing Indiana	Indiana	4 of 15 answers
8	Summit City Precision Machining (SCPM) Indiana	Indiana	4 of 15 answers
9	ISSI Engineering and Machining 11 employeesIndianapolis, Indiana	Indianapolis, Indiana	3 of 15 answers
10	Certa Craft Indiana 2 name variants Certa Craftmost common2 Certa Craft Inc.1	Indiana	3 of 15 answers

51 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
3D Machine, Inc.	Georgia	2 of 15
Blanda Inc.	Minnesota	2 of 15
R&D Machine	Ohio	2 of 15
Revelation Medical Devices (RMD)	Utah	2 of 15
A.M. Machine Company	Texas	1 of 15
Center Line Precision Technology	South Carolina	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 contract machining and machine shop companies in Indiana”
2“Who supplies precision CNC milled and turned components on contract in Indiana”
3“I need a Indiana contract machining partner for a 2,000-unit stainless steel medical device run, who should I talk to”
4“Top contract machining and machine shop suppliers in Indiana for industrial OEM buyers”
5“Which Indiana contract machining and machine shop providers can handle 5-axis CNC work with tight tolerance requirements”
6“List 20 contract machining and machine shop 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.

olsoncustomdesigns.com
3 companies
niamachining.com
3 companies
gmicorp.com
2 companies
hirecnc.com
2 companies
rathburnmachining.com
2 companies
certacraft.com
2 companies
intma.org
2 companies
northsidemt.com
2 companies
ntma.org
2 companies
thomasnet.comDirectory
2 companies
zycon.com
2 companies
issindy.com
1 company

76 sources were cited across this cell's answers from 68 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 27th of 35 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 7%.

Indiana (this report)Other measured statesCategory average (7%)

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