Company lists · Data refreshed October 2026

Top 25 Downstream engineering companies worldwide

Name: Downstream engineering companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 7,894 companies tracked

RevenueBase identified 7,894 company matches for downstream engineering companies worldwide as of October 2026 and tracks 313,145 professional contacts across them, including 47,072 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for downstream engineering companies 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 11, 2026. Country and city lists for downstream engineering companies 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 11, 2026 How this list was built

7,894Companies

313,145Contacts tracked

47,072Verified emails

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The 25 largest downstream engineering companies worldwide

Ranked by team size

Top 25 of 7,894 company matches for downstream engineering companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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	Aker Solutions	Exact match	Fornebu, NorwayHQ recorded Oct 11, 2026	10001+	16,152 contacts →
	Exact match “Aker Solutions is a global engineering and technology company known for delivering complex energy projects with trusted quality and predictable results.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2	Amec Foster Wheeler	Exact match	Aberdeen, United KingdomHQ recorded Oct 11, 2026	10001+	15,181 contacts →
	Exact match “Wood Group has combined with Amec Foster Wheeler to form a new global leader in the delivery of project, engineering and technical services to energy and industrial markets.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3	Tecnicas Reunidas	Exact match	Madrid, SpainHQ recorded Oct 11, 2026	10001+	11,378 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 · Oct 11, 2026 · View company records in RevenueBase
4	Samsung E&a	Exact match	Gangdong-gu, South KoreaHQ recorded Oct 11, 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 11, 2026 · View company records in RevenueBase
5	Aesa A-Evangelista SA	Exact match	Canning, IndiaHQ recorded Oct 11, 2026	5,001-10,000	5,219 contacts →
	Exact match “Since 1948 we specialize in projects for the energy industry.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6	Bilfinger	Exact match	Mannheim, GermanyHQ recorded Oct 11, 2026	10001+	4,268 contacts →
	Exact match “Bilfinger is an international industrial services provider with a vision to be the No.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7	UTC Engenharia	Exact match	São Paulo, BrazilHQ recorded Oct 11, 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 11, 2026 · View company records in RevenueBase
8	ENPPI	Exact match	Nasr City 1, United StatesHQ recorded Oct 11, 2026	1,001-5,000	3,451 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 · Oct 11, 2026 · View company records in RevenueBase
9	Montcalm Montagens Industriais	Exact match	São Paulo, BrazilHQ recorded Oct 11, 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 11, 2026 · View company records in RevenueBase
10	Dietsmann	Exact match	Fontvieille, MonacoHQ recorded Oct 11, 2026	5,001-10,000	1,931 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 · Oct 11, 2026 · View company records in RevenueBase
11	AYTB	Exact match	Jubail Industrial City, Saudi ArabiaHQ recorded Oct 11, 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 11, 2026 · View company records in RevenueBase
12	Aarvi Encon	Exact match	Mumbai, IndiaHQ recorded Oct 11, 2026	5,001-10,000	1,862 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 · Oct 11, 2026 · View company records in RevenueBase
13	Tp-Otc	Exact match	Çankaya, TürkiyeHQ recorded Oct 11, 2026	501-1,000	1,766 contacts →
	Exact match “TP-OTC is established to provide all engineering and technology services for offshore operations in oil and gas industry.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14	Audubon Companies	Exact match	Houston, TX, United StatesHQ recorded Oct 11, 2026	1,001-5,000	1,652 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 · Oct 11, 2026 · View company records in RevenueBase
15	Chiyoda Corporation	Exact match	Yokohama, JapanHQ recorded Oct 11, 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 11, 2026 · View company records in RevenueBase
16	Arabian Pipeline & Services Co. Ltd. Anabeeb	Exact match	Dammam, Saudi ArabiaHQ recorded Oct 11, 2026	5,001-10,000	1,610 contacts →
	Exact match “ANABEEB is on a mission to become the best in the industry, together with our highly-dedicated workforce and global partners, we will deliver added value to our customers without…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17	Dialog Group Berhad	Exact match	Petaling Jaya, MalaysiaHQ recorded Oct 11, 2026	1,001-5,000	1,599 contacts →
	Exact match “DIALOG is a leading integrated technical service provider to the energy sector, in Malaysia and internationally.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18	EKIUM	Exact match	Lyon Cedex 07, FranceHQ recorded Oct 11, 2026	1,001-5,000	1,550 contacts →
	Exact match “Welcome to Ekium!” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19	RENCO	Exact match	Pesaro, ItalyHQ recorded Oct 11, 2026	1,001-5,000	1,534 contacts →
	Exact match “Renco S.p.A, an Italian company founded in 1979, is continually committed to providing its Clients with sound business solutions in an ever increasingly complex and challenging…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20	Arabian Industries	Exact match	Alkhuwair, OmanHQ recorded Oct 11, 2026	10001+	1,330 contacts →
	Exact match “We deliver engineered solutions for the oil, gas and industrialised sectors through our manufacturing, EPC Projects, Maintenance & Turnarounds, Logistics & Rig Moving and Support…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21	Abraj Energy Services	Exact match	Muscat, OmanHQ recorded Oct 11, 2026	1,001-5,000	1,274 contacts →
	Exact match “Abraj Energy Services ("Abraj"), was founded in May 2006 and has taken major strides.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22	AL Turki Enterprises L.L.C	Exact match	United StatesHQ recorded Oct 11, 2026	1,001-5,000	1,268 contacts →
	Exact match “At Al Turki’s Oil and Gas Division, we carry out multi-disciplined Engineering Design, Procurement and Construction service in the southern region of Oman with our Off-plot…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23	IKPT	Exact match	Jakarta, IndonesiaHQ recorded Oct 11, 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 11, 2026 · View company records in RevenueBase
24	Cr3	Exact match	Nikonpattana, ThailandHQ recorded Oct 11, 2026	5,001-10,000	1,180 contacts →
	Exact match “The CR3 Group is a leading provider of energy engineering solutions, catering to world-class customers in sectors such as energy production, chemical processing, power, renewables…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25	Gulf Companies	Exact match	Houston, TX, United StatesHQ recorded Oct 11, 2026	1,001-5,000	1,171 contacts →
	Exact match “At Gulf Companies, we are driven by our mission to serve a vital role in the global energy industry.” Recorded in the RevenueBase company graph · Oct 11, 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 “downstream engineering companies”. 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 7,894 downstream engineering companies worldwide

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Downstream engineering companies worldwide at a glance

As of Oct 11, 2026

15.0%Verified-email coverage

39.7Average contacts per company

11-50Median size (employees)

3.3%Largest-city concentration · Tehran

Oct 11, 2026Page data refreshed

Companies by employee count

1-10

2,459

11-50

2,803

51-200

1,593

201-500

562

501-1,000

223

1,001-5,000

183

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 downstream engineering companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “downstream engineering companies” 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 47,072 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 11, 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.

Downstream engineering companies by location

54 lists · largest first

Every Downstream engineering companies 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 “downstream engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many downstream engineering companies are there worldwide?

RevenueBase identified 7,894 company matches for downstream engineering companies 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?

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

Which country has the most downstream engineering companies?

The United States leads with 732 companies, followed by India (669) and Nigeria (463). Every downstream engineering companies list by country and city is linked on this page.

Which city has the most downstream engineering companies?

Tehran leads with 263 company records, followed by Houston (174) and Calgary (127).

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 47,072 professional contacts with verified work emails tracked across these 7,894 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 11, 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.