AI Visibility Index · Cell report

Measured

AI Visibility Index: Industrial Filters in Connecticut

When a buyer asks an AI assistant for a industrial filters supplier in Connecticut, 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

45 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.

20 named at least once
45 never named

Not sure whether you are one of them?Check your domain

Cell average: 0.66of 15
Across all 65 tracked companies.
Top ten average: 3.6of 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 Connecticut

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

Top 10 most AI-visible Industrial Filters companies in Connecticut, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Shelco Filters 25 employeesMiddletown, Connecticut 3 name variants Shelco Filtersmost common8 Shelco Filters (ASME code housing line)1 Shelco Filters (Tinny Corp.)1	Middletown, Connecticut	9 of 15 answers
2	Mott Corp 80 employeesFarmington, Connecticut	Farmington, Connecticut	7 of 15 answers
3	C & C Hydraulics Inc 16 employeesTerryville, Connecticut	Terryville, Connecticut	3 of 15 answers
4	Filter Sales & Service, Inc. 9 employeesWest Haven, Connecticut	West Haven, Connecticut	3 of 15 answers
5	MSC Filtration Technologies 10 employeesEnfield, Connecticut	Enfield, Connecticut	3 of 15 answers
6	NEFCO 67 employeesEast Hartford, Connecticut 2 name variants New England Filtermost common2 New England Filter (NEFCO)1	East Hartford, Connecticut	3 of 15 answers
7	ProFlow Inc 47 employeesNorth Haven, Connecticut	North Haven, Connecticut	2 of 15 answers
8	ASC Industrial Air Filtration Connecticut	Connecticut	2 of 15 answers
9	CT Cleanroom Corporation Connecticut	Connecticut	2 of 15 answers
10	Fluid Dynamics Connecticut	Connecticut	2 of 15 answers

34 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 Connecticut. They belong to that state's ranking, not this one.

Company	State	Mentions
Hydro Service and Supplies	North Carolina	2 of 15
BEPeterson	Massachusetts	1 of 15
Berendsen Fluid Power	Missouri	1 of 15
Champion Process	Texas	1 of 15
Clearwater Systems Corporation	Arizona	1 of 15

Named, but placed in another state

The AI answers themselves put these companies in a different state, so they were not counted for Connecticut. Whether MacRAE'S lists them elsewhere is not yet known.

Company	State	Mentions
Critical Process Filtration	New Hampshire	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 Connecticut”
2“Who supplies high-efficiency pleated HEPA filter cartridges in Connecticut”
3“I need a Connecticut industrial filtration partner for a continuous-duty chemical processing line, who should I talk to”
4“Top industrial filters suppliers in Connecticut for plant maintenance and reliability buyers”
5“Which Connecticut industrial filter manufacturers can handle custom housings rated for high-pressure corrosive media”
6“List 20 industrial filters companies in Connecticut 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
14 companies
macraesbluebook.comDirectory
4 companies
deltrolfluid.com
4 companies
globalspec.comDirectory
3 companies
shelco.com
2 companies
slcooke.com
2 companies
industrialreplacementfilters.com
2 companies
criticalprocess.com
1 company
1igroup.com
1 company
airexfilter.com
1 company
americandenco.com
1 company
aquestcorp.com
1 company

49 sources were cited across this cell's answers from 41 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Connecticut in context

Connecticut ranks 1st 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%.

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

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