AI Visibility Index: Heat Exchangers in Ohio

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

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

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The headline numbers

Never named by AI

101 of 114

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.

13 named at least once
101 never named

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Cell average: 0.31of 15
Across all 114 tracked companies.
Top ten average: 5.7of 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 Ohio

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

Top 10 most AI-visible Heat Exchangers companies in Ohio, measured September 30, 2026
Rank	Company	Location	AI visibility
1	Heat Exchange Applied Tech Orrville, Ohio 3 name variants H.E.A.T. – Heat Exchange Applied Technology, Inc.most common10 Heat Exchange Applied Technology (H.E.A.T.)3 H.E.A.T. – Heat Exchange Applied Technology1	Orrville, Ohio	14 of 15 answers
2	Didion Vessel Ohio	Ohio	11 of 15 answers
3	CG Thermal LLC Ohio 2 name variants CG Thermal LLCmost common5 CG Thermal2	Ohio	7 of 15 answers
4	AT&F 175 employeesCleveland, Ohio	Cleveland, Ohio	6 of 15 answers
5	Ambassador Heat Transfer Ohio	Ohio	4 of 15 answers
6	Ohio Heat Transfer Ohio 2 name variants Ohio Heat Transfer, LLCmost common2 Ohio Heat Transfer2	Ohio	4 of 15 answers
7	Durafin Tube Ohio	Ohio	3 of 15 answers
8	KAM Thermal Equipment Ohio	Ohio	3 of 15 answers
9	Process Dynamics Inc. Ohio	Ohio	3 of 15 answers
10	Berrington Pumps & Systems, Inc. 9 employeesAvon, Ohio 2 name variants Berrington Pumps & Systems, Inc.most common1 Berrington Pumps & Systems1	Avon, Ohio	2 of 15 answers

21 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 Ohio. They belong to that state's ranking, not this one.

Company	State	Mentions
Alloy Engineering	Connecticut	5 of 15
Wessels Company	Indiana	3 of 15
Cannon Boiler Works	Pennsylvania	2 of 15
Universal Heat Transfer Products	California	2 of 15
H.E.A.T. (via CEECO Equipment – rep)	New York	1 of 15
Harris Thermal Transfer Products	Oregon	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 heat exchanger companies in Ohio”
2“Who supplies custom shell-and-tube heat exchangers in Ohio”
3“I need a Ohio heat exchanger partner for a high-pressure chemical processing line, who should I talk to”
4“Top heat exchanger suppliers in Ohio for process engineering buyers”
5“Which Ohio heat exchanger manufacturers can handle ASME-coded stainless steel units for corrosive media”
6“List 20 heat exchanger companies in Ohio 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
16 companies
heat-voss.com
4 companies
heatexchangers.org
3 companies
cgthermal.com
2 companies
cannonboilerworks.com
2 companies
globalspec.comDirectory
2 companies
ohioheattransfer.com
2 companies
durafintube.com
1 company
kamthermal.com
1 company
westank.com
1 company
activechemicalsystems.com
1 company
alloyengineering.com
1 company

37 sources were cited across this cell's answers from 29 domains. A directory page often stands behind several companies at once; a company's own site usually stands behind one.

Ohio in context

Ohio ranks 7th of 9 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%.

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

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