AI Visibility Index: Plastic Extrusion & Thermoforming in Indiana

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

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

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The headline numbers

Never named by AI

156 of 170

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.

14 named at least once
156 never named

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Cell average: 0.54of 15
Across all 170 tracked companies.
Top ten average: 9.2of 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 Plastic Extrusion & Thermoforming companies in Indiana, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Hart Plastics IncEvery answer 20 employeesElkhart, Indiana	Elkhart, Indiana	15 of 15 answers
2	Spencer Industries Inc. 422 employeesDale, Indiana 3 name variants Spencer Industriesmost common6 Spencer Industries Incorporated4 Spencer Industries Inc.3	Dale, Indiana	13 of 15 answers
3	Paramount Plastics Inc 18 employeesElkhart, Indiana 2 name variants Paramount Plasticsmost common10 Paramount Plastics Inc.2	Elkhart, Indiana	12 of 15 answers
4	Plastic Components Inc 25 employeesElkhart, Indiana 2 name variants Plastic Components, Inc.most common6 Plastic Components Inc. (PCI)4	Elkhart, Indiana	10 of 15 answers
5	Indiana Vac Form Inc 35 employeesWarsaw, Indiana	Warsaw, Indiana	9 of 15 answers
6	Futurex Plastics 65 employeesBloomingdale, Indiana 3 name variants Futurex Plasticsmost common6 Futurex Industries (Futurex Plastics)1 Futurex Industries1	Bloomingdale, Indiana	8 of 15 answers
7	Medallion Plastics Indiana	Indiana	8 of 15 answers
8	Quad 4 Plastics 25 employeesElkhart, Indiana	Elkhart, Indiana	6 of 15 answers
9	Travel Star Products Indiana	Indiana	6 of 15 answers
10	Arrowhead Plastic Engineering - Plastics Plant -49 employeesEaton, Indiana 2 name variants Arrowhead Plastic Engineeringmost common4 Arrowhead Plastic (Thermoforming Division)1	Eaton, Indiana	5 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 Indiana. They belong to that state's ranking, not this one.

Company	State	Mentions
Formco Inc.	Ohio	8 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 plastic extrusion and thermoforming companies in Indiana”
2“Who supplies custom extruded and thermoformed plastic profiles in Indiana”
3“I need a Indiana plastic extrusion and thermoforming partner for a new consumer product housing program, who should I talk to”
4“Top plastic extrusion and thermoforming suppliers in Indiana for OEM product development buyers”
5“Which Indiana plastic extrusion and thermoforming companies can handle tight-tolerance co-extruded sheet and deep-draw forming”
6“List 20 plastic extrusion and thermoforming 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
spencerindustries.com
3 companies
futurexind.com
3 companies
arrowheadinc.com
2 companies
plasticcomponentsinc.com
2 companies
corporate.lippert.com
2 companies
crescentplastics.com
2 companies
globalspec.comDirectory
2 companies
paramountplastics.com
2 companies
formcoinc.com
1 company
travelstarproducts.com
1 company
americanelkhart.com
1 company

32 sources were cited across this cell's answers from 25 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 15th of 26 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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