AI Visibility Index: Industrial Filters in Maryland

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

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

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The headline numbers

Never named by AI

46 of 58

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.

12 named at least once
46 never named

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Cell average: 0.36of 15
Across all 58 tracked companies.
Top ten average: 3.1of 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 Maryland

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

Top 10 most AI-visible Industrial Filters companies in Maryland, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Tate Andale LLC 75 employeesBaltimore, Maryland	Baltimore, Maryland	5 of 15 answers
2	Tate Engineering - Corporate 100 employeesArbutus, Maryland 3 name variants Tate Engineering Systemsmost common2 Tate Engineering (Tate Engineering Systems, Inc.)1 Tate Engineering / Tate1	Arbutus, Maryland	4 of 15 answers
3	Industrial Filtration Systems Maryland	Maryland	4 of 15 answers
4	Jobe Industrial Maryland	Maryland	3 of 15 answers
5	Micropure Filtration Inc. Maryland	Maryland	3 of 15 answers
6	Pall Corporation – Timonium Facility Maryland	Maryland	3 of 15 answers
7	S.J. Rafferty Company, Inc. Maryland	Maryland	3 of 15 answers
8	Capital Air Filter Corporation 6 employeesTemple Hills, Maryland	Temple Hills, Maryland	2 of 15 answers
9	Cosmos Air Purification & Environmental Systems, Inc 10 employeesGreater Landover, Maryland	Greater Landover, Maryland	2 of 15 answers
10	RGS Distributors Maryland 2 name variants RGS Distributors (RGS PureSpace)most common1 RGS Distributors1	Maryland	2 of 15 answers

20 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 Maryland. They belong to that state's ranking, not this one.

Company	State	Mentions
Ultrapar, Inc.	New Hampshire	5 of 15
Cummins-Wagner	Pennsylvania	3 of 15
IndustriCorp	Texas	3 of 15
AAF Baltimore Branch (American Air Filter)	Arkansas	2 of 15
Champion Process, Inc.	Texas	2 of 15
De‑Mar Inc.	Washington	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 suppliers of industrial filters in Maryland”
2“Who supplies high-efficiency pleated HEPA filter cartridges in Maryland”
3“I need a Maryland industrial filtration partner for a continuous-duty chemical processing line, who should I talk to”
4“Top industrial filters suppliers in Maryland for plant maintenance and reliability buyers”
5“Which Maryland industrial filter manufacturers can handle custom housings rated for high-pressure corrosive media”
6“List 20 industrial filters companies in Maryland 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.

globalspec.comDirectory
4 companies
thomasnet.comDirectory
3 companies
aafintl.com
3 companies
cummins-wagner.com
2 companies
en.wikipedia.orgDirectory
2 companies
rgspurespace.com
2 companies
tate.com
2 companies
championprocess.com
1 company
industrialfiltrationsystems.com
1 company
accurafil.com
1 company
achrnews.com
1 company
atlanticdesigninc.com
1 company

48 sources were cited across this cell's answers from 42 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Maryland in context

Maryland ranks 5th of 21 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 12%.

Maryland (this report)Other measured statesCategory average (12%)

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