Company lists · Data refreshed September 2026
Top 25 Heat meter manufacturers worldwide
RevenueBase identified 506 heat meter manufacturers worldwide as of September 2026 and tracks 8,229 professional contacts across them, including 2,420 with verified work emails. Germany is the largest market and Istanbul the largest hub.
This list covers heat meter manufacturers worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026. Country and city lists for heat meter manufacturers follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest heat meter manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 509 contacts → | ||||
Partial evidence “SIT consists of three Business Units: Heating and Ventilation develops and manufactures systems for the safety, comfort, and performance of domestic gas equipment; Smart Gas…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 471 contacts → | ||||
Strong evidence “Bronkhorst is a leading manufacturer of Mass Flow and Pressure Meters / Controllers for gases and liquids.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 267 contacts → | ||||
Indirect evidence “Janitza energy measurement technology Nowadays, energy management is not only relevant for the environment and for society but is also a critical competitive factor.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 213 contacts → | ||||
Indirect evidence “GWF AG is a globally active technology leader in flow measurement, consumption data collection, and data communication.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 203 contacts → | ||||
Partial evidence “Elster is a leading global provider of gas, electricity and water meters and related communications, networking and software solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 191 contacts → | ||||
Partial evidence “The company specializes in the design and manufacture of innovative measure and control devices that meet all International standards.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 161 contacts → | ||||
Partial evidence “AEM is a manufacturer of SMART metering devices for electricity and gas as well as AMR and AMM systems for the management of electricity and gas.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 154 contacts → | ||||
Strong evidence “A leading Polish manufacturer of residential and industrial water meters, part of the Apator Group, with over 100 years of experience.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 103 contacts → | ||||
Indirect evidence “German Version Below* RMG GmbH, is the European market leader of natural gas measurement systems and services supporting all natural gas measurement applications.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 102 contacts → | ||||
Indirect evidence “QUNDIS GmbH is an innovative, mid-sized company with about 300 employees located in Erfurt, Germany.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 100 contacts → | ||||
Indirect evidence “At CAPITAL, we are engineering the future of utility management.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 99 contacts → | ||||
Indirect evidence “INTEGRA Metering AG, based in Therwil, looks back on a long history.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 92 contacts → | ||||
Strong evidence “ONICON designs and manufactures a full line of highly accurate flow meters and energy measurement systems.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 91 contacts → | ||||
Partial evidence “Barbagli is a metering company specialized in providing solutions for the acquiring, monitoring and management of water, gas, electric energy and heat consumption.Founded in 1923…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 80 contacts → | ||||
Indirect evidence “ista Nederland, Transparante informatie over energie, warmte- en waterverbruik voor iedereen!” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 79 contacts → | ||||
Partial evidence “With a century of experience, Daniel is the only manufacturer that has the knowledge and expertise to engineer and offer superior products that provide the most reliable and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 77 contacts → | ||||
Indirect evidence “ISTA es una de las empresas líderes en la mejora de la eficiencia energética en el sector residencial.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 76 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 68 contacts → | ||||
Strong evidence “MeteRSit is a company belonging to the SIT Group, which designs, manufactures and markets gas meters with innovative technologies and functions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 63 contacts → | ||||
Partial evidence “For 50 years, we have been your specialist for products that measure, record and transmit heat, cold and water quantities and volume.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 60 contacts → | ||||
Indirect evidence “Since 1982, Quadlogic has been committed to delivering accurate, sophisticated, and reliable metering systems.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 53 contacts → | ||||
Indirect evidence “Dostarczamy wysokiej jakości rozwiązania pomiarowe, nadzorcze i regulacyjne w obszarze instalacji grzewczych, wentylacyjnych i chłodzących; wody ciepłej i deszczówki oraz oleju…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 52 contacts → | ||||
Strong evidence “ZPA Smart Energy is the largest Czech manufacturer of electricity meters, mass remote control and modern measurement systems.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 49 contacts → | ||||
Indirect evidence “Hukseflux is the leading expert in measurement of energy transfer.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 44 contacts → | ||||
Indirect evidence “En Instrumentación Industrial Zurc, nos dedicamos a diseñar y fabricar equipos de control y medición para la eficiencia energética eléctrica, adaptados a las necesidades de…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: heat meter manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names heat meter manufacturers.
- Partial evidence
- Its own public description names part of heat meter manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name heat meter manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 506 heat meter manufacturers worldwide
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Heat meter manufacturers worldwide at a glance
As of Sep 30, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among heat meter manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for heat meter manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “heat meter manufacturers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names heat meter manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among heat meter manufacturers, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 2,420 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 30, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Heat meter manufacturers by location
3 lists · largest firstEvery Heat meter manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names heat meter manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many heat meter manufacturers are there worldwide?
RevenueBase identified 506 heat meter manufacturers worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
SIT, headquartered in Padua, tops this list with the largest team on record.
Which country has the most heat meter manufacturers?
Germany leads with 83 companies, followed by Italy (35) and the United States (30). Every heat meter manufacturers list by country and city is linked on this page.
Which city has the most heat meter manufacturers?
Istanbul leads with 5 headquartered companies, followed by Shenzhen (5) and Ankara (4).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,420 verified decision-maker contacts tracked across these 506 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.