AI Visibility Index: Structural Steel Fabrication in Washington

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

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

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The headline numbers

Never named by AI

54 of 65

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.

11 named at least once
54 never named

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Cell average: 0.4of 15
Across all 65 tracked companies.
Top ten average: 5.8of 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 Structural Steel Fabrication companies in Washington, measured September 30, 2026
Rank	Company	Location	AI visibility
1	RWFAB Washington 6 name variants RWFAB (R & W Fabrication)most common5 RWFAB4 RWFAB (R&R Steel Fabrication & Installation)1 RWFAB (Roland & Whytock Fabricators)1 RWFAB (Riverwood Fabrication)1 RWFAB (RW Fabrication)1	Washington	13 of 15 answers
2	J&B Fabricators 4 employeesAuburn, Washington 2 name variants J & B Fabricatorsmost common7 J&B Fabricators, Inc.1	Auburn, Washington	8 of 15 answers
3	Category 5 Steel Washington	Washington	6 of 15 answers
4	MBI Construction Services Washington 2 name variants MBI Construction Servicesmost common5 MBI Construction Services, Inc.1	Washington	6 of 15 answers
5	Spokane Metals LLC Washington	Washington	6 of 15 answers
6	Western States Steel & Fab, Inc. Washington	Washington	6 of 15 answers
7	SteelKorr Washington	Washington	4 of 15 answers
8	McFabco Graham Steel Fabrication Company, LLC 9 employeesSeattle, Washington 3 name variants McFabco / Graham Steel Fabrication Companymost common1 McFabco Graham Steel Fabrication1 McFabco / Graham Steel1	Seattle, Washington	3 of 15 answers
9	Metals Fabrication Co 55 employeesAirway Heights, Washington 2 name variants Metals Fabrication Company, Inc.most common2 Metals Fabrication Company (MFC)1	Airway Heights, Washington	3 of 15 answers
10	Standard Steel Fabricating Co 25 employeesSeattle, Washington	Seattle, Washington	3 of 15 answers

31 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
Precise MFG	Indiana	1 of 15
Steel Structures America	California	1 of 15
Whitmore Steel (WSI Steel)	California	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 structural steel fabrication companies in Washington”
2“Who supplies custom structural steel building frames in Washington”
3“I need a Washington structural steel fabrication partner for a mid-rise commercial project, who should I talk to”
4“Top structural steel fabrication suppliers in Washington for general contractor buyers”
5“Which Washington structural steel fabricators can handle large welded assemblies with certified field erection support”
6“List 20 structural steel fabrication 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
11 companies
onsitesolutionspnw.com
6 companies
rwfab.com
6 companies
westernstatessteel.com
3 companies
mcfabco.com
3 companies
edcometalfabricators.com
2 companies
jb-fabwa.com
2 companies
mbiyakima.com
2 companies
rainierwelding.com
2 companies
wabo.org
2 companies
cat5steel.com
1 company
spokanemetals.com
1 company

47 sources were cited across this cell's answers from 36 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 3rd of 19 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 11%.

Washington (this report)Other measured statesCategory average (11%)

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