Company lists · Data refreshed September 2026
Top 25 Function generator manufacturers worldwide
RevenueBase identified 536 function generator manufacturers worldwide as of September 2026 and tracks 7,456 professional contacts across them, including 1,584 with verified work emails. The United States is the largest market and Fuzhou the largest hub.
This list covers function generator 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 function generator 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 function generator manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 849 contacts → | ||||
Indirect evidence “Líder nacional na fabricação e comercialização de grupos geradores, a STEMAC projeta e executa soluções em energia através da maior estrutura de atendimento, com 38 filiais…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 600 contacts → | ||||
Partial evidence “Founded in 1968 with the establishment of an electric motor factory by Ali Metin Kazancı, Aksa Power Generation accelerated its journey in the energy sector by producing its first…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 473 contacts → | ||||
Partial evidence “Teledyne LeCroy is a leading manufacturer of advanced oscilloscopes, protocol analyzers, and other test instruments that verify performance, validate compliance, and debug complex…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 460 contacts → | ||||
Strong evidence “Cooper Corporation manufactures world-class Engines and Generators (Gensets)” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 193 contacts → | ||||
Strong evidence “Centrax Gas Turbines manufacture gas turbine-powered generator sets ranging from 3.9 MW to 15 MW.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 171 contacts → | ||||
Indirect evidence “RIGOL was founded in 1998 and established as RIGOL Technologies Co, Ltd.(RIGOL) in 2019.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 166 contacts → | ||||
Partial evidence “EMSA is one of the biggest generator company in Turkey.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 165 contacts → | ||||
Partial evidence “Zurich Instruments develops and manufactures advanced products for Quantum Computing and Periodic Signal Measurement.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 154 contacts → | ||||
Partial evidence “Pico Technology is a leading global provider of high-performance oscilloscopes, diagnostic equipment, data loggers, and signal generators.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 125 contacts → | ||||
Indirect evidence “A MAXI TRUST Grupos Geradores produz de forma seriada Grupos Geradores a Diesel de 40kVA à e Grupos Geradores a Gás de 70 à além de desenvolver projetos especiais para usinas de…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 115 contacts → | ||||
Partial evidence “Grupel is a Portuguese company that produces and sells power generators up to 3500kVA, portable lighting towers and customized energy solutions for any application.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 113 contacts → | ||||
Indirect evidence “Founded in 1975, the Good Will Instrument Co.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 94 contacts → | ||||
Indirect evidence “Established in 1935, HIOKI E.E.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 75 contacts → | ||||
Partial evidence “e-power® has achieved its success by offering a complete range of quality generators in the range from 1 to 600kVA.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 72 contacts → | ||||
Partial evidence “With over 13 years of experience in power generation, we specialize in manufacturing, assembly, and sales of diesel, biogas, and natural gas generators.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 63 contacts → | ||||
Indirect evidence “Shyam Global Technoventure Pvt.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 51 contacts → | ||||
Indirect evidence “Established in 1971, Tabor Electronics has become a world-leading source of high-end test and measurement equipment.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 51 contacts → | ||||
Indirect evidence “MORILLO es una pyme familiar y española, que con más de 50 años de historia se encuentra en su mejor momento para dar un perfecto servicio a sus necesidades.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 46 contacts → | ||||
Indirect evidence “Axiometrix Solutions is a leading provider in the test and measurement space.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 44 contacts → | ||||
Partial evidence “As a global leader in the standby power systems industry Aksa Power Generation has brought our manufacturing strengths to America in order to be the high quality and competitive…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 42 contacts → | ||||
Strong evidence “Huu Toan is a leading generator Original Equipment Manufacturer based in Vietnam.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 38 contacts → | ||||
Partial evidence “Aksa Power Generation, has been in Generator business for 35 years meeting the market standard with the excellent quality and competitive prices.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 33 contacts → | ||||
Strong evidence “Established in 1936, Sommers is the leading Canadian manufacturer & distributor of premium quality generator systems for prime power, standby power and mobile applications.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 32 contacts → | ||||
Indirect evidence “For more than 25 years, VX Instruments has been developing and producing high-tech test and measurement equipment as well as customized solutions.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 30 contacts → | ||||
Strong evidence “C.G.M Generating Sets is one of the manufacturer leader in high quality, reliable products and innovative research.” 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: function generator 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 function generator manufacturers.
- Partial evidence
- Its own public description names part of function generator manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name function generator 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 536 function generator manufacturers worldwide
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Function generator 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 function generator 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 function generator manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “function generator 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 function generator 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 function generator 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, 1,584 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.
Function generator manufacturers by location
2 lists · largest firstEvery Function generator 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 function generator 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 function generator manufacturers are there worldwide?
RevenueBase identified 536 function generator 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?
Stemac, headquartered in Porto Alegre, tops this list with the largest team on record.
Which country has the most function generator manufacturers?
The United States leads with 40 companies, followed by the United Kingdom (33). Every function generator manufacturers list by country and city is linked on this page.
Which city has the most function generator manufacturers?
Fuzhou leads with 9 headquartered companies, followed by Wuxi (8) and Istanbul (7).
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 1,584 verified decision-maker contacts tracked across these 536 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.