Company lists · Data refreshed September 2026

Top 25 Refractory ceramic companies worldwide

Name: Refractory ceramic companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 2,051 companies tracked

RevenueBase identified 2,051 refractory ceramic companies worldwide as of September 2026 and tracks 38,221 professional contacts across them, including 9,462 with verified work emails. India is the largest market and Zhengzhou the largest hub.

This list covers refractory ceramic companies 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 21, 2026. Country and city lists for refractory ceramic companies 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

2,051Companies

38,221Contacts tracked

9,462Verified emails

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The 25 largest refractory ceramic companies worldwide

Ranked by team size

Top 25 of 2,051 refractory ceramic companies worldwide, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to refractory ceramic companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	RHI Magnesita	Partial evidence	Vienna, United StatesHQ checked Sep 21, 2026	10001+	7,193 contacts →
	Partial evidence “RHI Magnesita is the leading global supplier of high-grade refractory products, systems and solutions which are critical for high-temperature processes exceeding 1,200°C in a wide…” Source: RevenueBase Database · checked Sep 21, 2026
2	Coorstek, INC	Partial evidence	Golden, CO, United StatesHQ checked Sep 21, 2026	5,001-10,000	1,836 contacts →
	Partial evidence “CoorsTek is the international partner of choice for companies requiring the unique, high-performance properties of products manufactured from engineered technical ceramics and…” Source: RevenueBase Database · checked Sep 21, 2026
3	Calderys	Indirect evidence	Paris, FranceHQ checked Sep 21, 2026	1,001-5,000	1,724 contacts →
	Indirect evidence “Calderys is a leading global provider for industries operating in high-temperature conditions.” Source: RevenueBase Database · checked Sep 21, 2026
4	TRL Krosaki Refractories Limited	Partial evidence	Jharsuguda, IndiaHQ checked Sep 21, 2026	1,001-5,000	941 contacts →
	Partial evidence “Established in 1958, TRL Krosaki Refractories Limited (formerly Tata Refractories Limited (TRL)) has pioneered refractory production in India and have extended its supply and…” Source: RevenueBase Database · checked Sep 21, 2026
5	Ceramtec The Ceramic Experts	Partial evidence	Plochingen, GermanyHQ checked Sep 21, 2026	1,001-5,000	772 contacts →
	Partial evidence “About CeramTec CeramTec is a global leader in high-performance advanced material solutions, with more than 120 years of expertise.” Source: RevenueBase Database · checked Sep 21, 2026
6	Harbisonwalker International	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	750 contacts →
	Partial evidence “HWI is the largest supplier of refractory products and services in the United States, with a history that spans more than 150 years.” Source: RevenueBase Database · checked Sep 21, 2026
7	IBAR	Partial evidence	Poá, BrazilHQ checked Sep 21, 2026	1,001-5,000	688 contacts →
	Partial evidence “We are IBAR, the Brazilian representative for the development of advanced solutions in refractory materials technology for 80 years.” Source: RevenueBase Database · checked Sep 21, 2026
8	SET Linings Int. S.A	Partial evidence	Moita, PortugalHQ checked Sep 21, 2026	201-500	584 contacts →
	Partial evidence “Set Linings is the world's fastest growing Refractory Company delivering turn-key projects around the globe with engineering, material supply, installation, dry-out and heating-up…” Source: RevenueBase Database · checked Sep 21, 2026
9	Magnesita Refractories	Indirect evidence	BrazilHQ checked Sep 21, 2026	1,001-5,000	450 contacts →
	Indirect evidence “Worldwide active in refractrory business besides others.” Source: RevenueBase Database · checked Sep 21, 2026
10	Unifrax	Indirect evidence	Tonawanda, NY, United StatesHQ checked Sep 21, 2026	1,001-5,000	398 contacts →
	Indirect evidence “At Unifrax, we provide innovative solutions to our customers' application problems across several different industries.” Source: RevenueBase Database · checked Sep 21, 2026
11	Darchem Engineering	Indirect evidence	Stillington, United KingdomHQ checked Sep 21, 2026	501-1,000	317 contacts →
	Indirect evidence “Darchem Engineering Limited is a world class Engineering Company providing products and services primarily to meet the needs of its customers for engineered solutions to high…” Source: RevenueBase Database · checked Sep 21, 2026
12	Eurokera	Indirect evidence	Château-thierry, FranceHQ checked Sep 21, 2026	501-1,000	288 contacts →
	Indirect evidence “Founded in 1990 by Saint-Gobain and Corning, EuroKera benefits from the glass expertise of its two parent companies with centuries-old know-how.” Source: RevenueBase Database · checked Sep 21, 2026
13	KÜMAŞ	Partial evidence	Kütahya, TürkiyeHQ checked Sep 21, 2026	501-1,000	223 contacts →
	Partial evidence “KÜMAŞ is the largest producer and supplier of refractory products for steel, cement, glass, lime, nonferrous and some other industries in Eastern Europe and Turkey.” Source: RevenueBase Database · checked Sep 21, 2026
14	Resco Products, INC	Partial evidence	Robinson Township, PA, United StatesHQ checked Sep 21, 2026	201-500	210 contacts →
	Partial evidence “Resco Products has been servicing the refractory industry for over half a century and grown to 11 facilities across North America which gives us the unique ability to service our…” Source: RevenueBase Database · checked Sep 21, 2026
15	NUTEC	Indirect evidence	Huntersville, NC, United StatesHQ checked Sep 21, 2026	201-500	208 contacts →
	Indirect evidence “NUTEC is a leading manufacturer of superior quality, high-temperature insulation and fire protection products.” Source: RevenueBase Database · checked Sep 21, 2026
16	Mahakoshal Refractories Private Limited	Partial evidence	Katni, IndiaHQ checked Sep 21, 2026	1,001-5,000	180 contacts →
	Partial evidence “Mahakoshal Refractories Pvt.” Source: RevenueBase Database · checked Sep 21, 2026
17	Dalmia Bharat Refractories	Partial evidence	New Delhi, IndiaHQ checked Sep 21, 2026	201-500	173 contacts →
	Partial evidence “Through India-based DMC & China-based OGL, Dalmia Bharat Refractories Ltd.(DBRL) provides focussed and high performance refractory materials, solutions, and services to iron &…” Source: RevenueBase Database · checked Sep 21, 2026
18	Simpolo Vitrified LTD	Partial evidence	Morbi, IndiaHQ checked Sep 21, 2026	201-500	170 contacts →
	Partial evidence “Simpolo Vitrified Ltd is a Glass, Ceramics and Concrete company located in Old Ghuntu Road, National Highway, Morbi, Gujarat, India.” Source: RevenueBase Database · checked Sep 21, 2026
19	Saint-Gobain Performance Ceramics & Refractories	Strong evidence	Courbevoie, FranceHQ checked Sep 21, 2026	1,001-5,000	163 contacts →
	Strong evidence “Saint-Gobain Performance Ceramics & Refractories, leads the industry in design, development and production of engineered ceramics and refractory products for extreme operating…” Source: RevenueBase Database · checked Sep 21, 2026
20	Vidres S.A	Indirect evidence	Villareal, SpainHQ checked Sep 21, 2026	201-500	157 contacts →
	Indirect evidence “Somos fabricantes de fritas, esmaltes y colores cerámicos, productos utilizados en la industria de la baldosa cerámica.” Source: RevenueBase Database · checked Sep 21, 2026
21	Rath Group	Partial evidence	Vienna, AustriaHQ checked Sep 21, 2026	501-1,000	150 contacts →
	Partial evidence “RATH is a refractory producer and is specializing in high temperature heat containment, thermal processing, and thermal measurement needs of its customers.” Source: RevenueBase Database · checked Sep 21, 2026
22	Sarvesh Refractories Pvt. LTD	Indirect evidence	Rourkela, IndiaHQ checked Sep 21, 2026	201-500	138 contacts →
	Indirect evidence “Sarvesh was incorporated in the year 1993, having two State-of-the-Art manufacturing facilities in Odisha.” Source: RevenueBase Database · checked Sep 21, 2026
23	Incerpaz Bolivia	Indirect evidence	Cochabamba, BoliviaHQ checked Sep 21, 2026	501-1,000	138 contacts →
	Indirect evidence “40 años creciendo junto al país Empresa reconocida a nivel nacional, compuesta por socios que apostaron en el país invirtiendo en la instalación de plantas productivas de cerámica…” Source: RevenueBase Database · checked Sep 21, 2026
24	Refraline Group Of Companies	Partial evidence	Ekurhuleni, South AfricaHQ checked Sep 21, 2026	201-500	137 contacts →
	Partial evidence “Design and Development of Refractory Materials • Demolition • Maintenance and Repair of Refractories Corrosion Engineering Solutions • Materials and Maintenance Lagging and…” Source: RevenueBase Database · checked Sep 21, 2026
25	PT Aldzama	Indirect evidence	Gresik, IndonesiaHQ checked Sep 21, 2026	51-200	135 contacts →
	Indirect evidence “Established in 2008, Aldzama proudly stands as Indonesia leading expert in furnace and kiln services With a steadfast dedication to safety, innovation, and sustainability, we…” Source: RevenueBase Database · checked Sep 21, 2026

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: refractory ceramic companies. 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 refractory ceramic companies.
Partial evidence: Its own public description names part of refractory ceramic companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refractory ceramic companies. 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 2,051 refractory ceramic companies worldwide

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Refractory ceramic companies worldwide at a glance

As of Sep 21, 2026

24.8%Verified-email coverage

18.6Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Zhengzhou

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

580

11-50

661

51-200

499

201-500

167

501-1,000

1,001-5,000

5,001-10,000

10001+

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 refractory ceramic companies, 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 refractory ceramic companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “refractory ceramic companies”. 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 refractory ceramic companies), 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 refractory ceramic companies, 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, 9,462 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 21, 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.

Refractory ceramic companies by location

11 lists · largest first

Every Refractory ceramic companies 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 refractory ceramic companies, 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 refractory ceramic companies are there worldwide?

RevenueBase identified 2,051 refractory ceramic companies 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?

RHI Magnesita, headquartered in Vienna, tops this list with the largest team on record.

Which country has the most refractory ceramic companies?

India leads with 280 companies, followed by the United States (263) and Brazil (127). Every refractory ceramic companies list by country and city is linked on this page.

Which city has the most refractory ceramic companies?

Zhengzhou leads with 33 headquartered companies, followed by Zibo (30) and Istanbul (14).

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 9,462 verified decision-maker contacts tracked across these 2,051 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 21, 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.