Company lists · Data refreshed September 2026

Top 25 Hydrocarbon processing plant builders worldwide

Name: Hydrocarbon processing plant builders worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 5,178 companies tracked

RevenueBase identified 5,178 company matches for hydrocarbon processing plant builders worldwide as of September 2026 and tracks 423,906 professional contacts across them, including 66,637 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for hydrocarbon processing plant builders 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 September 20, 2026. Country and city lists for hydrocarbon processing plant builders 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 Sep 20, 2026 How this list was built

5,178Companies

423,906Contacts tracked

66,637Verified emails

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The 25 largest hydrocarbon processing plant builders worldwide

Ranked by team size

Top 25 of 5,178 company matches for hydrocarbon processing plant builders worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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	Saipem	Exact match	Milan, ItalyHQ recorded Sep 20, 2026	10001+	34,095 contacts →
	Exact match “Saipem is a global leader in the engineering and construction of major projects for the energy and infrastructure sectors, both offshore and onshore.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2	Mcdermott International, LTD	Exact match	Houston, TX, United StatesHQ recorded Sep 20, 2026	10001+	20,135 contacts →
	Exact match “McDermott is a premier provider of engineering and construction solutions to the energy industry.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3	Petrofac	Exact match	London, United KingdomHQ recorded Sep 20, 2026	5,001-10,000	13,261 contacts →
	Exact match “We are a leading international service provider to the energy industry, with a diverse client portfolio including many of the world’s leading energy companies.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4	Tecnicas Reunidas	Exact match	Madrid, SpainHQ recorded Sep 20, 2026	10001+	10,588 contacts →
	Exact match “TR is an international general contractor engaged in the engineering and construction of industrial facilities in the fields of-Oil & Gas -Refining & Petrochemical -Power…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5	KENT	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 20, 2026	10001+	7,045 contacts →
	Exact match “We design, build and maintain the assets that power the world for today and make it future-ready for tomorrow.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6	Samsung E&a	Exact match	Gangdong-gu, South KoreaHQ recorded Sep 20, 2026	5,001-10,000	7,011 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 · Sep 20, 2026 · View company records in RevenueBase
7	Zachry Group	Exact match	San Antonio, TX, United StatesHQ recorded Sep 20, 2026	10001+	6,824 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 · Sep 20, 2026 · View company records in RevenueBase
8	Nmdc Energy	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Sep 20, 2026	10001+	6,786 contacts →
	Exact match “Established in 1973, NMDC Energy (formerly NPCC) is a leading EPC company working in the energy sector.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9	GS E&c	Exact match	Seoul, South KoreaHQ recorded Sep 20, 2026	5,001-10,000	6,051 contacts →
	Exact match “GS E&C is Korea`s representative global contractor leveraging its experience in Civil Engineering, Building, Oil & Gas, Power Plants and Renewable Energy to continually provide…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10	Aesa A-Evangelista SA	Exact match	Canning, IndiaHQ recorded Sep 20, 2026	5,001-10,000	5,012 contacts →
	Exact match “Since 1948 we specialize in projects for the energy industry.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11	Bonatti	Exact match	Parma, United StatesHQ recorded Sep 20, 2026	5,001-10,000	4,895 contacts →
	Exact match “Bonatti is an International Contractor providing services to energy industry with over 75 years of experience.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12	S&b	Exact match	Houston, TX, United StatesHQ recorded Sep 20, 2026	5,001-10,000	3,510 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 · Sep 20, 2026 · View company records in RevenueBase
13	ENPPI	Exact match	Nasr City 1, United StatesHQ recorded Sep 20, 2026	1,001-5,000	3,370 contacts →
	Exact match “Enppi is globally recognized as a major engineering, EPC main contractor, and management contractor, with decades of experience in onshore and offshore projects in the oil and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14	Nbtc Group	Exact match	Shuaiba Industrial, KuwaitHQ recorded Sep 20, 2026	10001+	3,164 contacts →
	Exact match “Being established in 1977, NBTC had flourished its self as a leading EPC contracting company through a combination of highly empowered attributes via entrepreneurial leadership…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15	Toyo Engineering Corporation	Exact match	Chiba-shi Mihama-ku, JapanHQ recorded Sep 20, 2026	1,001-5,000	2,760 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 · Sep 20, 2026 · View company records in RevenueBase
16	Estrutural	Exact match	Porto Alegre, BrazilHQ recorded Sep 20, 2026	1,001-5,000	2,461 contacts →
	Exact match “Quem somos: Somos uma empresa nacional, com mais de 30 anos no segmento da construção, montagem e manutenção industrial.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17	Qatar Engineering & Construction Company W.L.L	Exact match	Ras Laffan Industrial City (rlic), QatarHQ recorded Sep 20, 2026	5,001-10,000	2,222 contacts →
	Exact match “Qatar Engineering & Construction Company (Qcon) is the leading National EPC & Maintenance Contractor in the Oil & Gas, Petrochemical, Fertilizer and Power industries.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18	Montcalm Montagens Industriais	Exact match	São Paulo, BrazilHQ recorded Sep 20, 2026	1,001-5,000	2,088 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 · Sep 20, 2026 · View company records in RevenueBase
19	CTCI	Exact match	Taipei City, TaiwanHQ recorded Sep 20, 2026	5,001-10,000	2,056 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 · Sep 20, 2026 · View company records in RevenueBase
20	Brown & Root Industrial Services, LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Sep 20, 2026	5,001-10,000	1,940 contacts →
	Exact match “Brown & Root Industrial Services offers the full range of industrial services – engineering, construction, maintenance, turnaround, and specialty (painting, scaffolding…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21	ELFE	Exact match	Macaé, BrazilHQ recorded Sep 20, 2026	1,001-5,000	1,898 contacts →
	Exact match “No mercado há mais de duas décadas, a Axia é uma empresa nacional com atuação em operação e manutenção industrial.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22	Dietsmann	Exact match	Fontvieille, MonacoHQ recorded Sep 20, 2026	5,001-10,000	1,843 contacts →
	Exact match “Dietsmann is the leading independent specialist in Operation & Maintenance services for continuous-production plant in the oil & gas and power industries with over 40 years of…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23	Rotary Engineering	Exact match	SingaporeHQ recorded Sep 20, 2026	5,001-10,000	1,841 contacts →
	Exact match “Founded 1972 in Singapore, Rotary Engineering is your Strategic Energy Partner providing Integrated Infrastructure Solutions with a sustainability focus.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24	Groupe Ponticelli Frères	Exact match	FranceHQ recorded Sep 20, 2026	5,001-10,000	1,829 contacts →
	Exact match “The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25	AYTB	Exact match	Jubail Industrial City, Saudi ArabiaHQ recorded Sep 20, 2026	5,001-10,000	1,812 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 · Sep 20, 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 “hydrocarbon processing plant builders”. 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 5,178 hydrocarbon processing plant builders worldwide

See the full list, filter by size, metro and specialty, and access 66,637 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrocarbon processing plant builders worldwide at a glance

As of Sep 20, 2026

15.7%Verified-email coverage

81.9Average contacts per company

51-200Median size (employees)

4.2%Largest-city concentration · Tehran

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

911

11-50

1,625

51-200

1,312

201-500

623

501-1,000

287

1,001-5,000

291

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 hydrocarbon processing plant builders are linked below.
What qualifies: Company records worldwide whose business descriptions match “hydrocarbon processing plant builders” 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 66,637 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 September 20, 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.

Hydrocarbon processing plant builders by location

25 lists · largest first

Every Hydrocarbon processing plant builders 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 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 “hydrocarbon processing plant builders”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrocarbon processing plant builders are there worldwide?

RevenueBase identified 5,178 company matches for hydrocarbon processing plant builders worldwide as of September 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?

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

Which country has the most hydrocarbon processing plant builders?

The United States leads with 778 companies, followed by India (327) and Iran (291). Every hydrocarbon processing plant builders list by country and city is linked on this page.

Which city has the most hydrocarbon processing plant builders?

Tehran leads with 215 company records, followed by Houston (126) and Port Harcourt (76).

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 66,637 professional contacts with verified work emails tracked across these 5,178 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 September 20, 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.