Company lists · Data refreshed September 2026
Top 25 Slewing ring manufacturers worldwide
RevenueBase identified 307 slewing ring manufacturers worldwide as of September 2026 and tracks 5,487 professional contacts across them, including 818 with verified work emails. The United States is the largest market and Rajkot the largest hub.
This list covers slewing ring 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 slewing ring 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 slewing ring manufacturers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 604 contacts → | ||||
Partial evidence “JTEKT Corporation was established in January 2006 through the merger of Koyo Seiko Co, Ltd, a world-class bearing manufacturer, and Toyoda Machine Works, Ltd, a machine tool…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 2 | 387 contacts → | ||||
Indirect evidence “Founded in 1873 in Vicenza (Italy), Forgital Group is now part of the leading international investment firm Stonepeak.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 3 | 228 contacts → | ||||
Partial evidence “Defontaine Group is an international group that designs and manufactures complex mechanical parts and sub-assemblies.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 4 | 217 contacts → | ||||
Indirect evidence “Xtek, Inc.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 5 | 149 contacts → | ||||
Indirect evidence “LAULAGUN BEARINGS se dedica, desde 1973, al diseño, fabricación y venta de grandes rodamientos y coronas de orientación, con una experiencia de 20 años en el sector eólico.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 6 | 144 contacts → | ||||
Strong evidence “It is a leading manufacturer of piston rings, clutch plates, groove/alfin inserts and flat plates along with innovative products like moly plasma inlaid rings, chrome scrapper…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 7 | 135 contacts → | ||||
Indirect evidence “Ravi Technoforge Private Limited (RTL) was established in 1990 by the Founder and Chairman Mr.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 8 | 127 contacts → | ||||
Indirect evidence “KRISHNAVENI CARBON PRODUCTS PRIVATE LIMITED is a company based out of 63/3ATHIPALAYAM ROAD CHINNAVEDAMPATTI, COIMBATORE, Tamil Nadu, India.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 9 | 123 contacts → | ||||
Indirect evidence “Agrasen Engineering started in 1984.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 10 | 93 contacts → | ||||
Indirect evidence “BRÜCK is one of the leading specialists in the production of sophisticated special forgings.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 11 | 93 contacts → | ||||
Strong evidence “The IMO Group is one of the leading manufacturers of large diameter Slewing Rings and ready-to-install Slew Drives.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 12 | 89 contacts → | ||||
Partial evidence “CW Bearing is a leading designer and manufacturer of high-quality, customized ball bearings, serving industries such as electric motors, gearboxes, power tools, automotive, and…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 13 | 67 contacts → | ||||
Partial evidence “IRE-OMBA is a company specialized in the production of RINGS.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 14 | 66 contacts → | ||||
Indirect evidence “Niebuhr Gears A/S Keep the world in motion We are a gear wheel manufacturing company.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 15 | 57 contacts → | ||||
Indirect evidence “Experience leadership solutions in industrial bearings.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 16 | 54 contacts → | ||||
Strong evidence “CPM SpA is a company based in Italy that designs and manufactures special bearings, slewing rings and precision rings in a range between 10 mm bore and 800 mm external diameter.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 17 | 47 contacts → | ||||
Strong evidence “The world’s leading manufacturers depend on Grover piston rings and seals to meet their most demanding application needs.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 18 | 43 contacts → | ||||
Partial evidence “Reich GmbH, with its production site in Mellrichstadt, sees itself as a leading manufacturer of vehicle parts and special ball bearings.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 19 | 41 contacts → | ||||
Partial evidence “EUROBEARINGS Srl (EUB) is your reliable partner for Design, Manufacture and Rehabilitation of WHITE METAL sliding Guide, Thrust and Combined BEARINGS.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 20 | 41 contacts → | ||||
Strong evidence “We are an engineering company with thirty years of experience, during which we have established ourselves as one of the largest manufacturers of seamless hot-rolled rings with a…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 21 | 41 contacts → | ||||
Indirect evidence “Established in 2005 as a small workshop by a young engineer, Pritam Bahirat, AKSH has grown into a multi-activity group.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 22 | 38 contacts → | ||||
Strong evidence “Euskalforging is a world leader manufacturer of seamless rolled rings (outside Ø up to mm) with a market presence since 1969 and 3 manufacturing plants in Northern Spain…” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 23 | 34 contacts → | ||||
Indirect evidence “Napoleon Engineering Services (NES) is located in Olean, NY, seventy miles south of Buffalo in the heart of the Allegany Mountains.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 24 | 34 contacts → | ||||
Indirect evidence “Morgan Bronze Products, Inc, in business over 70 years, specializes in bearing alloys and bearing applications.” Source: RevenueBase Database · checked Sep 30, 2026Thanks. The Data Team will review it. | |||||
| 25 | 33 contacts → | ||||
Strong evidence “Welcome to Rotis, your trusted manufacturer of large axial slewing bearings ranging from Ø 200 mm to Ø mm.” 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: slewing ring 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 slewing ring manufacturers.
- Partial evidence
- Its own public description names part of slewing ring manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name slewing ring 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 307 slewing ring manufacturers worldwide
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Slewing ring 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 slewing ring 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 slewing ring manufacturers are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “slewing ring 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 slewing ring 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 slewing ring 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, 818 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.
Slewing ring manufacturers by location
2 lists · largest firstEvery Slewing ring 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 slewing ring 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 slewing ring manufacturers are there worldwide?
RevenueBase identified 307 slewing ring 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?
Koyo Bearings North America, headquartered in Worldwide, tops this list with the largest team on record.
Which country has the most slewing ring manufacturers?
The United States leads with 35 companies, followed by Italy (25). Every slewing ring manufacturers list by country and city is linked on this page.
Which city has the most slewing ring manufacturers?
Rajkot leads with 14 headquartered companies, followed by Luoyang (12) and Jaipur (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 818 verified decision-maker contacts tracked across these 307 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.