AI Visibility Index: Plastic Extrusion & Thermoforming in California

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

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

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The headline numbers

Never named by AI

500 of 515

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.

15 named at least once
500 never named

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Cell average: 0.15of 15
Across all 515 tracked companies.
Top ten average: 7.3of 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 California

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

Top 10 most AI-visible Plastic Extrusion & Thermoforming companies in California, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Phillips Brothers Plastics 30 employeesGardena, California 2 name variants Phillips Bros. Plasticsmost common10 Phillips Bros. Plastics, Inc.1	Gardena, California	11 of 15 answers
2	Plastifab 18 employeesPoway, California 3 name variants Universal Plastifab (Plastifab)most common9 Plastifab (Universal Plastifab)1 Plastifab1	Poway, California	11 of 15 answers
3	Reeves Extruded Products, Inc 75 employeesArvin, California	Arvin, California	10 of 15 answers
4	Tru-Form Plastics Inc. 25 employeesWestminster, California	Westminster, California	9 of 15 answers
5	Plastic Extrusion Company California	California	7 of 15 answers
6	Control Plastics & Metals California	California	6 of 15 answers
7	Anaheim Custom Extruders, Inc. 48 employeesAnaheim, California 2 name variants Anaheim Custom Extrudersmost common3 Anaheim Custom Extruders (ACE)2	Anaheim, California	5 of 15 answers
8	Architectural Plastics Inc 32 employeesPetaluma, California 2 name variants Architectural Plasticsmost common4 Architectural Plastics, Inc.1	Petaluma, California	5 of 15 answers
9	Bolero Plastics 25 employeesSanta Fe Springs, California	Santa Fe Springs, California	5 of 15 answers
10	Industrial Forming 8 employeesVentura, California	Ventura, California	4 of 15 answers

23 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 California. They belong to that state's ranking, not this one.

Company	State	Mentions
Plastic Design & Manufacturing (PDD Plastic Forming)	Georgia	1 of 15
Plastic Forming (PDD Plastic Forming)	Connecticut	1 of 15
Product Design & Development (PDD Plastic Forming)	Pennsylvania	1 of 15
Ray Products	Kansas	1 of 15
Sandee Plastics (Sandee Manufacturing)	Illinois	1 of 15
Silicone Plastics, Inc.	Utah	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 plastic extrusion and thermoforming companies in California”
2“Who supplies custom extruded and thermoformed plastic profiles in California”
3“I need a California 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 California for OEM product development buyers”
5“Which California 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 California 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.

pddplasticforming.com
8 companies
universalplastifab.com
3 companies
thomasnet.comDirectory
2 companies
acextrusions.com
2 companies
akra-plastics.com
2 companies
archplastics.com
2 companies
casealingsolutions.com
2 companies
centplasticmfg.com
2 companies
controlplastics.com
2 companies
duramaxbp.com
2 companies
phillipsbrosplastics.com
2 companies
rapidaccuform.com
2 companies

30 sources were cited across this cell's answers from 29 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

California in context

California ranks 26th 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%.

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

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