AI Visibility Index · Cell report
MeasuredAI Visibility Index: Industrial Filters in North Carolina
When a buyer asks an AI assistant for a industrial filters supplier in North Carolina, these are the companies that get named. This is what we found when the cell was last measured.
- 93 companies tracked
- Last measured September 30, 2026
- Next measurement October 30, 2026
The headline numbers
Never named by AI
84 of 93
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
- 84 never named
- Cell average
- 0.47of 15
Across all 93 tracked companies.
- Top ten average
- 6.5of 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 North Carolina
These are the companies AI assistants named most often when North Carolina buyers went looking for a supplier in this category.
| Rank | Company | Location | AI visibility |
|---|---|---|---|
| 1 | Franklin Product Co 12 employeesBurlington, North Carolina | Burlington, North Carolina | 11 of 15 answers |
| 2 | John W Foster Sales Co 15 employeesMatthews, North Carolina | Matthews, North Carolina | 11 of 15 answers |
| 3 | Capital Air Filters 14 employeesRaleigh, North Carolina | Raleigh, North Carolina | 8 of 15 answers |
| 4 | BHS-Sonthofen Inc. North Carolina 3 name variants
| North Carolina | 8 of 15 answers |
| 5 | Air Purification Inc 15 employeesRaleigh, North Carolina | Raleigh, North Carolina | 7 of 15 answers |
| 6 | Drum Filter Media Inc. North Carolina | North Carolina | 5 of 15 answers |
| 7 | Fibrix Filtration North Carolina | North Carolina | 5 of 15 answers |
| 8 | Parker Sales & Service North Carolina 3 name variants
| North Carolina | 4 of 15 answers |
| 9 | NC Filtration North Carolina | North Carolina | 3 of 15 answers |
| 10 | Precision Industrial Services Inc. North Carolina | North Carolina | 3 of 15 answers |
33 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 North Carolina. They belong to that state's ranking, not this one.
| Company | State | Mentions |
|---|---|---|
| Carolina Filter Supply | South Carolina | 6 of 15 |
| American Metal Fabricators | Texas | 1 of 15 |
| E.W. Process | South Carolina | 1 of 15 |
| Engineering Sales Associates (ESA) | Tennessee | 1 of 15 |
| Hydrodex | Illinois | 1 of 15 |
One of these yours?
A complete Blue Book listing is one of the sources assistants read in this category. Confirming your details is free.
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 North Carolina”
- 2“Who supplies high-efficiency pleated HEPA filter cartridges in North Carolina”
- 3“I need a North Carolina industrial filtration partner for a continuous-duty chemical processing line, who should I talk to”
- 4“Top industrial filters suppliers in North Carolina for plant maintenance and reliability buyers”
- 5“Which North Carolina industrial filter manufacturers can handle custom housings rated for high-pressure corrosive media”
- 6“List 20 industrial filters companies in North Carolina 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.
- bhs-filtration.com5 companies
- carolinafiltersupply.com3 companies
- psasinc.com3 companies
- globalspec.comDirectory2 companies
- prmfiltration.com2 companies
- bagfilters.com2 companies
- putschusa.com2 companies
- airpurificationinc.com1 company
- ncfiltration.com1 company
- smartflow-tech.com1 company
- americanmetalfabinc.com1 company
- appliedplasticservices.com1 company
53 sources were cited across this cell's answers from 43 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.
North Carolina in context
North Carolina ranks 15th 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%.
- Connecticut31%
- Virginia26%
- Arizona25%
- Tennessee21%
- Maryland21%
- Minnesota19%
- Wisconsin18%
- Georgia17%
- Indiana16%
- Missouri15%
- Massachusetts14%
- New Jersey12%
- Illinois11%
- Pennsylvania10%
- North Carolina10%
- Ohio9%
- Texas9%
- Michigan9%
- Florida7%
- New York7%
- California5%
Look up a company
Enter a domain or a company name to see whether it is tracked in this cell, and whether the answers named it. This is a lookup against a measurement already taken, so it is instant.
Try franklinfilters.com or any other domain
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- Every question it was named on
- Every question it was not
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More published reports in North Carolina
- Metal Fabrication Services359 tracked
- Contract Machining & Machine Shops246 tracked
- Industrial & Process Controls214 tracked
- Industrial Machinery & Equipment Distributors193 tracked
- Injection Molded Plastics187 tracked
- Metal Cutting Tools186 tracked
- Plastic Extrusion & Thermoforming136 tracked
- Electrical Equipment Distributors126 tracked
- Conveyors & Material Handling Equipment121 tracked
- Welding Services115 tracked
- Metal Finishing Services107 tracked
- Electrical Terminals & Connectors104 tracked