Company lists · Data refreshed November 2026

Top 25 Chemical process engineering firms worldwide

Name: Chemical process engineering firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 13,501 companies tracked

RevenueBase identified 13,501 company matches for chemical process engineering firms worldwide as of November 2026 and tracks 297,505 professional contacts across them, including 61,540 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for chemical process engineering firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for chemical process engineering firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

13,501Companies

297,505Contacts tracked

61,540Verified emails

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The 25 largest chemical process engineering firms worldwide

Ranked by team size

Top 25 of 13,501 company matches for chemical process engineering firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Samsung E&a	Exact match	Gangdong-gu, South KoreaHQ recorded Nov 6, 2026	5,001-10,000	7,517 contacts →
	Exact match “SAMSUNG E&A is one of the world’s leading engineering, procurement, construction and project management (EPC & PM) companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Zachry Group	Exact match	San Antonio, TX, United StatesHQ recorded Nov 6, 2026	10001+	7,226 contacts →
	Exact match “Zachry Group is North America's pacesetter in turnkey engineering, construction, maintenance, turnaround and fabrication services to the energy, chemicals, power, manufacturing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Bilfinger	Exact match	Mannheim, GermanyHQ recorded Nov 6, 2026	10001+	4,349 contacts →
	Exact match “Bilfinger is an international industrial services provider with a vision to be the No.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	UTC Engenharia	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	10001+	3,894 contacts →
	Exact match “The Company operates in sundry markets, taking the lead in such sectors as oil & gas production and processing, petrochemicals, power generation, steel production, paper & pulp…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	S&b	Exact match	Houston, LA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,819 contacts →
	Exact match “S&B is an engineer and constructor that designs and builds some of the largest and most complex industrial facilities in the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Toyo Engineering Corporation	Exact match	Chiba-shi Mihama-ku, JapanHQ recorded Nov 6, 2026	1,001-5,000	2,912 contacts →
	Exact match “Toyo Engineering is an engineering company that constructs the plant in a global stage centering on the plant engineering field.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Vesuvius	Exact match	London, United KingdomHQ recorded Nov 6, 2026	10001+	2,562 contacts →
	Exact match “Leading the world of molten metal flow engineering and technology, serving process industries operating in challenging high-temperature conditions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Montcalm Montagens Industriais	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,431 contacts →
	Exact match “Fundada em 1971, a Montcalm tem como missão, oferecer soluções de engenharia construtiva para implantação, ampliação e manutenção de indústrias de processos, sempre com o…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	CTCI	Exact match	Jakarta, TaiwanHQ recorded Nov 6, 2026	5,001-10,000	2,194 contacts →
	Exact match “CTCI (TWSE: 9933, TPEx: 5209, TPEx: 6803) is a global engineering, procurement, and construction (EPC) services provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Quaker Houghton	Exact match	Conshohocken, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,102 contacts →
	Exact match “Quaker Houghton (NYSE: KWR) is the global leader in industrial process fluids, with more than employees including chemists, engineers and industry experts, and operations in over…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Aarvi Encon	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	5,001-10,000	1,982 contacts →
	Exact match “Aarvi Encon has established it's leadership in providing Engineering Consultancy and Technical Assistance to Oil & Gas, Refinery, Petrochemical, Pipelines, Power & Infrastructure…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Hargrove Engineers & Constructors	Exact match	Mobile, AL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,882 contacts →
	Exact match “Hargrove is a full-service engineering, procurement, and construction management firm delivering multi-discipline engineering, project delivery, controls & automation, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Burns & Mcdonnell India	Exact match	Vikhroli West, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,874 contacts →
	Exact match “At Burns & McDonnell India, we are a diverse team of talented engineers with multidiscipline design and consultancy working across sectors in critical infrastructure: oil and gas…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Chiyoda Corporation	Exact match	Yokohama, JapanHQ recorded Nov 6, 2026	5,001-10,000	1,702 contacts →
	Exact match “Since its establishment in 1948, Chiyoda's business field has covered the energy sector such as oil and gas industry including energy conservation, and chemicals, environment…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Audubon Companies	Exact match	Houston, LA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,699 contacts →
	Exact match “Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	EKIUM	Exact match	Lyon Cedex 07, FranceHQ recorded Nov 6, 2026	1,001-5,000	1,603 contacts →
	Exact match “Welcome to Ekium!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Tkil Industries	Exact match	Pune, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,501 contacts →
	Exact match “TKIL Industries Pvt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Nexxo S.A	Exact match	Concón, ChileHQ recorded Nov 6, 2026	1,001-5,000	1,405 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Englobal	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	201-500	1,223 contacts →
	Exact match “Who We Are Englobal Founded in 1985, ENGlobal (NASDAQ: ENG) is a specialty engineering services firm that focuses on automation solutions and select EPCM projects for the energy…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Paul Wurth S.A	Exact match	LuxembourgHQ recorded Nov 6, 2026	201-500	1,218 contacts →
	Exact match “Rooted and founded in Luxembourg more than a 150 years ago, Paul Wurth is a valued industrial engineering partner in the global ironmaking industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Zuhair Fayez	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	1,156 contacts →
	Exact match “Zuhair Fayez stands as the region's foremost engineering and consulting firm, renowned for our innovative approach in architecture, project management, and oil and gas services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Imco Engineering & Construction CO W.L.L	Exact match	KuwaitHQ recorded Nov 6, 2026	1,001-5,000	1,155 contacts →
	Exact match “Established in 1970, IMCO started as a pioneer in the Industrial Electrical and Instrumentation Fields in Kuwait.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	AICHE	Exact match	New York, NY, United StatesHQ recorded Nov 6, 2026	n/a	1,059 contacts →
	Exact match “AIChE is the world’s leading organization for chemical engineering professionals, with over members from more than 100 countries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	M. N. Dastur & Co. P LTD	Exact match	Kolkata, IndiaHQ recorded Nov 6, 2026	1,001-5,000	941 contacts →
	Exact match “M.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Kbr-Amcde	Exact match	Al-khobar, Saudi ArabiaHQ recorded Nov 6, 2026	501-1,000	882 contacts →
	Exact match “KBR-AMCDE has been successfully delivering engineering solutions in the Kingdom since 2011.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “chemical process engineering firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 13,501 chemical process engineering firms worldwide

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Chemical process engineering firms worldwide at a glance

As of Nov 6, 2026

20.7%Verified-email coverage

22.0Average contacts per company

11-50Median size (employees)

1.4%Largest-city concentration · Tehran

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

5,774

11-50

4,708

51-200

1,959

201-500

540

501-1,000

202

1,001-5,000

148

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for chemical process engineering firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “chemical process engineering firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 61,540 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Chemical process engineering firms by location

68 lists · largest first

Every Chemical process engineering firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “chemical process engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many chemical process engineering firms are there worldwide?

RevenueBase identified 13,501 company matches for chemical process engineering firms worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Samsung E&a tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most chemical process engineering firms?

The United States leads with 1,693 companies, followed by India (1,147) and Brazil (1,072). Every chemical process engineering firms list by country and city is linked on this page.

Which city has the most chemical process engineering firms?

Tehran leads with 192 company records, followed by Houston (147) and Pune (138).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 61,540 professional contacts with verified work emails tracked across these 13,501 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.