AI Visibility Index: Industrial Filters in Minnesota

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

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

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The headline numbers

Never named by AI

52 of 64

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
52 never named

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Cell average: 0.55of 15
Across all 64 tracked companies.
Top ten average: 5.2of 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 Minnesota

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

Top 10 most AI-visible Industrial Filters companies in Minnesota, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Donaldson 800 employeesBloomington, Minnesota 3 name variants Donaldson Company, Inc.most common10 Donaldson Company3 Donaldson Company (Donaldson Torit – Industrial Products)1	Bloomington, Minnesota	14 of 15 answers
2	C.C. Day Company 8 employeesMinneapolis, Minnesota	Minneapolis, Minnesota	7 of 15 answers
3	G&B Environmental Minnesota	Minnesota	7 of 15 answers
4	TECHniques Filtration Minnesota	Minnesota	6 of 15 answers
5	C.L. Bensen Company Minnesota 2 name variants C.L. Bensen Companymost common4 C.L. Bensen Co.1	Minnesota	5 of 15 answers
6	KVA Engineering 8 employeesCorcoran, Minnesota	Corcoran, Minnesota	3 of 15 answers
7	Diversified Air Filtration Minnesota	Minnesota	3 of 15 answers
8	Mission Filtration Minnesota	Minnesota	3 of 15 answers
9	M & M Rogness Equipment Co 4 employeesRoseville, Minnesota	Roseville, Minnesota	2 of 15 answers
10	Twin City Filter Service 12 employeesMinneapolis, Minnesota	Minneapolis, Minnesota	2 of 15 answers

26 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 Minnesota. They belong to that state's ranking, not this one.

Company	State	Mentions
Pentair Engineered Filtration	New Hampshire	8 of 15
Air Filter Supply	Colorado	7 of 15
Camfil USA – Minneapolis	New Jersey	2 of 15
Environmental Products, Inc.	Missouri	2 of 15
TECHniques	Colorado	2 of 15
Air Quality Engineering, Inc.	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 suppliers of industrial filters in Minnesota”
2“Who supplies high-efficiency pleated HEPA filter cartridges in Minnesota”
3“I need a Minnesota industrial filtration partner for a continuous-duty chemical processing line, who should I talk to”
4“Top industrial filters suppliers in Minnesota for plant maintenance and reliability buyers”
5“Which Minnesota industrial filter manufacturers can handle custom housings rated for high-pressure corrosive media”
6“List 20 industrial filters companies in Minnesota 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
en.wikipedia.orgDirectory
3 companies
gbenvironmental.com
2 companies
airfilters.brookaire.com
2 companies
ccday.com
2 companies
clbensen.com
2 companies
dafilters.com
2 companies
globalspec.comDirectory
2 companies
3etech.com
2 companies
4techniques.com
2 companies
deltrolfluid.com
2 companies
comfilco.com
1 company

48 sources were cited across this cell's answers from 35 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Minnesota in context

Minnesota ranks 6th 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%.

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

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