AI Visibility Index: Injection Molded Plastics in Washington

When a buyer asks an AI assistant for a injection molded plastics supplier in Washington, these are the companies that get named. This is what we found when the cell was last measured.

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

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The headline numbers

Never named by AI

109 of 118

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.

9 named at least once
109 never named

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Cell average: 0.31of 15
Across all 118 tracked companies.
Top ten average: 4.8of 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 Washington

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

Top 10 most AI-visible Injection Molded Plastics companies in Washington, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Piller Aimmco Inc 50 employeesWashougal, Washington	Washougal, Washington	11 of 15 answers
2	KASO Plastics 25 employeesVancouver, Washington	Vancouver, Washington	10 of 15 answers
3	Innovative Industries NW Washington	Washington	5 of 15 answers
4	Plastics Northwest Inc 17 employeesVancouver, Washington	Vancouver, Washington	4 of 15 answers
5	Rex Plastics Inc 24 employeesVancouver, Washington 2 name variants Rex Plasticsmost common3 Rex Plastics Inc.1	Vancouver, Washington	4 of 15 answers
6	Stellar Injection Molding Washington	Washington	4 of 15 answers
7	Tamarack Industries Washington	Washington	4 of 15 answers
8	Artisan Industries Inc 10 employeesArlington, Washington	Arlington, Washington	2 of 15 answers
9	Sea-Lect Plastics 12 employeesEverett, Washington	Everett, Washington	2 of 15 answers
10	Blaser Casting & Molding Washington	Washington	2 of 15 answers

11 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 Washington. They belong to that state's ranking, not this one.

Company	State	Mentions
Ronningen Research & Development	Michigan	5 of 15
Plastic Injection Molding, Inc.	Oregon	3 of 15
Northwest Plastics, Inc.	British Columbia	2 of 15
R&D Plastics	North Carolina	2 of 15
Aero-Plastics Inc.	Ontario	1 of 15
Artisan Industries	Massachusetts	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 suppliers of injection molded plastics in Washington”
2“Who supplies custom injection molded ABS housings in Washington”
3“I need a Washington injection molded plastics partner for a 100,000 unit consumer electronics enclosure run, who should I talk to”
4“Top injection molded plastics suppliers in Washington for consumer product OEM buyers”
5“Which Washington injection molders can handle overmolding on metal inserts for structural components”
6“List 20 injection molded plastics companies in Washington 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
pexco.com
6 companies
tamarackindustries.com
2 companies
artisanplastics.com
2 companies
blasercasting.com
2 companies
portvanusa.com
2 companies
qualityplasticparts.com
1 company
kaso.com
1 company
rexplastics.com
1 company
aero-plastics.com
1 company
ensingerplastics.com
1 company
ezview.wa.gov
1 company

38 sources were cited across this cell's answers from 27 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Washington in context

Washington ranks 15th of 33 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 6%.

Washington (this report)Other measured statesCategory average (6%)

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