Company lists · Data refreshed October 2026

Top 25 Chemical plant engineering firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 9,393 companies tracked

RevenueBase identified 9,393 company matches for chemical plant engineering firms worldwide as of October 2026 and tracks 269,320 professional contacts across them, including 47,978 with verified work emails. India is the largest market and Tehran the largest hub.

This list covers company matches for chemical plant 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 October 9, 2026. Country and city lists for chemical plant 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 Oct 9, 2026 How this list was built

9,393Companies

269,320Contacts tracked

47,978Verified emails

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The 25 largest chemical plant engineering firms worldwide

Ranked by team size

Top 25 of 9,393 company matches for chemical plant engineering firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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	Technip Energies	Exact match	Paris, FranceHQ recorded Oct 9, 2026	10001+	16,687 contacts →
	Exact match “Technip Energies is a global technology and engineering powerhouse.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	Samsung E&a	Exact match	Gangdong-gu, South KoreaHQ recorded Oct 9, 2026	5,001-10,000	7,325 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 · Oct 9, 2026 · View company records in RevenueBase
3	Zachry Group	Exact match	San Antonio, TX, United StatesHQ recorded Oct 9, 2026	10001+	7,053 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 · Oct 9, 2026 · View company records in RevenueBase
4	Isgec Heavy Engineering LTD	Exact match	Noida, IndiaHQ recorded Oct 9, 2026	5,001-10,000	4,842 contacts →
	Exact match “With over 5,500 employees across India and overseas, Isgec is driven by the challenge of delivering state-of-the-art, sustainable, and sensible engineering solutions to a growing…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
5	UTC Engenharia	Exact match	São Paulo, BrazilHQ recorded Oct 9, 2026	10001+	3,755 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 · Oct 9, 2026 · View company records in RevenueBase
6	S&b	Exact match	Houston, TX, United StatesHQ recorded Oct 9, 2026	5,001-10,000	3,615 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 · Oct 9, 2026 · View company records in RevenueBase
7	Toyo Engineering Corporation	Exact match	Chiba-shi Mihama-ku, JapanHQ recorded Oct 9, 2026	1,001-5,000	2,841 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 · Oct 9, 2026 · View company records in RevenueBase
8	Montcalm Montagens Industriais	Exact match	São Paulo, BrazilHQ recorded Oct 9, 2026	1,001-5,000	2,354 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 · Oct 9, 2026 · View company records in RevenueBase
9	CTCI	Exact match	Taipei City, TaiwanHQ recorded Oct 9, 2026	5,001-10,000	2,161 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 · Oct 9, 2026 · View company records in RevenueBase
10	AYTB	Exact match	Jubail Industrial City, Saudi ArabiaHQ recorded Oct 9, 2026	5,001-10,000	1,887 contacts →
	Exact match “AYTB had recognized the Saudi Dream 45 years ago when the Royal Commission for Jubail and Yanbu was set up with a vision to build a huge petrochemical industry to catapult Saudi…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Hargrove Engineers & Constructors	Exact match	Mobile, AL, United StatesHQ recorded Oct 9, 2026	1,001-5,000	1,881 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 · Oct 9, 2026 · View company records in RevenueBase
12	Chiyoda Corporation	Exact match	Yokohama, JapanHQ recorded Oct 9, 2026	5,001-10,000	1,632 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 · Oct 9, 2026 · View company records in RevenueBase
13	AXENS	Exact match	Rueil-malmaison, FranceHQ recorded Oct 9, 2026	1,001-5,000	1,615 contacts →
	Exact match “The Axens Group offers a complete range of solutions for the conversion of oil and biomass into cleaner fuels, the production and purification of major petrochemical…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	EKIUM	Exact match	Lyon Cedex 07, FranceHQ recorded Oct 9, 2026	1,001-5,000	1,550 contacts →
	Exact match “Welcome to Ekium!” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	Bilfinger Engineering	Exact match	Schiedam, NetherlandsHQ recorded Oct 9, 2026	1,001-5,000	1,504 contacts →
	Exact match “Engineering for greenfield plants or modification and modernization projects for brownfield plants: Bilfinger delivers the optimized solution for our customers in terms of…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	Chemplast Sanmar Limited	Exact match	IndiaHQ recorded Oct 9, 2026	1,001-5,000	1,394 contacts →
	Exact match “Chemplast Sanmar – fifty years old and the flagship company of The Sanmar Group – is a major manufacturer of PVC resins, Caustic Soda, Chlorochemicals, Refrigerant gas, Industrial…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	Tkil Industries	Exact match	Pune, IndiaHQ recorded Oct 9, 2026	1,001-5,000	1,390 contacts →
	Exact match “TKIL Industries Pvt.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	IKPT	Exact match	Jakarta, IndonesiaHQ recorded Oct 9, 2026	501-1,000	1,256 contacts →
	Exact match “PT Inti Karya Persada Teknik (IKPT), a company specializing in Engineering, Procurement, and Construction services in Indonesia was established on 22 February 1982.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Paul Wurth S.A	Exact match	LuxembourgHQ recorded Oct 9, 2026	201-500	1,182 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 · Oct 9, 2026 · View company records in RevenueBase
20	L&t Heavy Engineering	Exact match	Mumbai, IndiaHQ recorded Oct 9, 2026	1,001-5,000	1,168 contacts →
	Exact match “L&T Heavy Engineering business is global leader in supply of the Engineered to order hi-tech equipment needs of Refinery, Oil & Gas, Fertilizer, Petrochemicals and Nuclear plants.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Imco Engineering & Construction CO W.L.L	Exact match	KuwaitHQ recorded Oct 9, 2026	1,001-5,000	1,130 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 · Oct 9, 2026 · View company records in RevenueBase
22	Sepcoiii Electric Power Construction Co., LTD	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 9, 2026	10001+	1,105 contacts →
	Exact match “Electrical Power Construction Co, Ltd.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	Zeeco, INC	Exact match	Tulsa, OK, United StatesHQ recorded Oct 9, 2026	1,001-5,000	921 contacts →
	Exact match “Since 1979, Zeeco is the trusted worldwide source for the design and manufacturing of combustion and environmental solutions for the refining, petrochemical, production, power and…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	M. N. Dastur & Co. P LTD	Exact match	Kolkata, IndiaHQ recorded Oct 9, 2026	1,001-5,000	904 contacts →
	Exact match “M.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	Pares&alvarez	Exact match	Santiago, ChileHQ recorded Oct 9, 2026	501-1,000	871 contacts →
	Exact match “We are Pares & Alvarez, our extensive experience and the recognition of our clients makes us one of the leading Engineering Companies in environmental, consulting, engineering and…” Recorded in the RevenueBase company graph · Oct 9, 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 plant 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 9,393 chemical plant engineering firms worldwide

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Chemical plant engineering firms worldwide at a glance

As of Oct 9, 2026

17.8%Verified-email coverage

28.7Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Tehran

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

3,253

11-50

3,287

51-200

1,783

201-500

605

501-1,000

215

1,001-5,000

174

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 plant engineering firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “chemical plant 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 47,978 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 October 9, 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 plant engineering firms by location

45 lists · largest first

Every Chemical plant 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 plant engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many chemical plant engineering firms are there worldwide?

RevenueBase identified 9,393 company matches for chemical plant engineering firms worldwide as of October 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?

Technip Energies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most chemical plant engineering firms?

India leads with 1,404 companies, followed by the United States (952) and Italy (595). Every chemical plant engineering firms list by country and city is linked on this page.

Which city has the most chemical plant engineering firms?

Tehran leads with 245 company records, followed by Pune (162) and Mumbai (134).

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 47,978 professional contacts with verified work emails tracked across these 9,393 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 October 9, 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.