AI Visibility Index: Plastic Extrusion & Thermoforming in South Carolina

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

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

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The headline numbers

Never named by AI

56 of 63

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.

7 named at least once
56 never named

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Cell average: 0.56of 15
Across all 63 tracked companies.
Top ten average: 4.9of 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 South Carolina

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

Top 10 most AI-visible Plastic Extrusion & Thermoforming companies in South Carolina, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Multiplastics Supply 46 employeesMt Pleasant, South Carolina	Mt Pleasant, South Carolina	14 of 15 answers
2	Blue Ridge Thermoforming South Carolina	South Carolina	12 of 15 answers
3	Spencer Industries Inc 30 employeesHampton, South Carolina 3 name variants Spencer Industriesmost common6 Spencer Industries – Hampton, SC plant2 Spencer Industries – South Carolina Facility1	Hampton, South Carolina	9 of 15 answers
4	Altera Polymers Inc 15 employeesEasley, South Carolina	Easley, South Carolina	5 of 15 answers
5	Ehren-Haus Industries, Inc. 8 employeesFort Mill, South Carolina	Fort Mill, South Carolina	2 of 15 answers
6	Quality Thermoforming Corporation 12 employeesFountain Inn, South Carolina	Fountain Inn, South Carolina	2 of 15 answers
7	Zeus Industrial Products, Inc 710 employeesOrangeburg, South Carolina	Orangeburg, South Carolina	2 of 15 answers
8	C-Plex Inc. 10 employeesLexington, South Carolina	Lexington, South Carolina	1 of 15 answers
9	Arrowhead Plastic Engineering, Inc. South Carolina	South Carolina	1 of 15 answers
10	Clemson Composites South Carolina	South Carolina	1 of 15 answers

5 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 South Carolina. They belong to that state's ranking, not this one.

Company	State	Mentions
Advanced Plastiform, Inc.	North Carolina	14 of 15
Custom Profile	Michigan	12 of 15
Sonoco	Wisconsin	8 of 15
Plastic Concepts & Innovations (PCI)	New York	6 of 15
Custom Profile – Camden Plant	Michigan	2 of 15
Universal Plastics, Inc.	Ohio	2 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 South Carolina”
2“Who supplies custom extruded and thermoformed plastic profiles in South Carolina”
3“I need a South Carolina 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 South Carolina for OEM product development buyers”
5“Which South Carolina 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 South Carolina 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
10 companies
custom-profile.com
4 companies
spencerindustries.com
3 companies
advancedplastiform.com
1 company
brtusa.com
1 company
alterapolymers.com
1 company
c-plexinc.com
1 company
clemsoncomposites.com
1 company
en.wikipedia.orgDirectory
1 company
escoprecision.com
1 company
gomotionapp.com
1 company
governor.sc.gov
1 company

23 sources were cited across this cell's answers from 17 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

South Carolina in context

South Carolina ranks 10th 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%.

South Carolina (this report)Other measured statesCategory average (7%)

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