Company lists · Data refreshed September 2026

Top 25 Petrochemical consulting firms worldwide

Name: Petrochemical consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 4,369 companies tracked

RevenueBase identified 4,369 petrochemical consulting firms worldwide as of September 2026 and tracks 97,150 professional contacts across them, including 14,986 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers petrochemical consulting firms 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 29, 2026. Country and city lists for petrochemical consulting firms 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 29, 2026 86% judged on-target in blind review

4,369Companies

97,150Contacts tracked

14,986Verified emails

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The 25 largest petrochemical consulting firms worldwide

Ranked by team size

Top 25 of 4,369 petrochemical consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to petrochemical consulting firms: 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	Imperial OIL	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 29, 2026	5,001-10,000	4,277 contacts →
	Indirect evidence “After more than a century, Imperial continues to be an industry leader in applying technology and innovation to responsibly develop Canada’s energy resources.” Source: RevenueBase Database · checked Sep 29, 2026
2	Equate Petrochemical Company شركة ايكويت للبتروكيماويات	Partial evidence	Safat, KuwaitHQ checked Sep 29, 2026	1,001-5,000	2,182 contacts →
	Partial evidence “ABOUT THE EQUATE GROUP The EQUATE Group is a global producer of petrochemicals and the world’s leading supplier of ethylene glycol (EG)supplier of ethylene glycol (EG).” Source: RevenueBase Database · checked Sep 29, 2026
3	AYTB	Partial evidence	Jubail Industrial City, Saudi ArabiaHQ checked Sep 29, 2026	5,001-10,000	1,812 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
4	SIBUR	Indirect evidence	Moscow, RussiaHQ checked Sep 29, 2026	10001+	1,704 contacts →
	Indirect evidence “СИБУР, лидер по производству синтетических материалов для отраслей.” Source: RevenueBase Database · checked Sep 29, 2026
5	AXENS	Partial evidence	Rueil-malmaison, FranceHQ checked Sep 29, 2026	1,001-5,000	1,572 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
6	Oxiteno	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 29, 2026	1,001-5,000	1,207 contacts →
	Indirect evidence “Since 2022, Oxiteno has been part of the Indorama Ventures business segment, called Indovinya.” Source: RevenueBase Database · checked Sep 29, 2026
7	JG Summit Olefins Corporation	Partial evidence	Batangas City, PhilippinesHQ checked Sep 29, 2026	201-500	1,136 contacts →
	Partial evidence “JG Summit Olefins Corporation (JGSOC) is a pioneer in the petrochemical industry in the Philippines, with its fully integrated manufacturing complex in Batangas City.” Source: RevenueBase Database · checked Sep 29, 2026
8	Dorf Ketal	Indirect evidence	Orlem, IndiaHQ checked Sep 29, 2026	501-1,000	966 contacts →
	Indirect evidence “Dorf Ketal, a specialty chemicals manufacturer and services provider with a global presence, offers customers innovative chemical solutions and quick, decisive response to solve…” Source: RevenueBase Database · checked Sep 29, 2026
9	OIL Industries Commissioning And Operation Company Oico	Indirect evidence	Tehran, IranHQ checked Sep 29, 2026	1,001-5,000	869 contacts →
	Indirect evidence “Oil Industries’ Commissioning and Operation Company (OICO) is incorporated to manage and execute commissioning and start-up, operation, maintenance and professional training for…” Source: RevenueBase Database · checked Sep 29, 2026
10	Irpc Public Company Limited	Partial evidence	Rayong, ThailandHQ checked Sep 29, 2026	1,001-5,000	859 contacts →
	Partial evidence “IRPC Public Company Limited or IRPC (Company) formerly Thai Petrochemical Industry Public Company Limited or “TPI” registered in 1978 by Leophairatana family.” Source: RevenueBase Database · checked Sep 29, 2026
11	GS Caltex	Indirect evidence	서울특별시, South KoreaHQ checked Sep 29, 2026	1,001-5,000	790 contacts →
	Indirect evidence “GS 78 5.” Source: RevenueBase Database · checked Sep 29, 2026
12	Lotte Chemical	Indirect evidence	Seoul, South KoreaHQ checked Sep 29, 2026	5,001-10,000	727 contacts →
	Indirect evidence “1976, HDPE, LDPE, LLDPE, PP, EG, SM, PIA, PET.” Source: RevenueBase Database · checked Sep 29, 2026
13	Arya Sasol Polymer	Indirect evidence	Asalouyeh, IranHQ checked Sep 29, 2026	1,001-5,000	665 contacts →
	Indirect evidence “Arya Sasol Polymer Company (ASPC) is the producer of polymer products located in the Pars Special Economic Energy Zone (PSEEZ) in the Iranian port city of Assaluyeh, southwestern…” Source: RevenueBase Database · checked Sep 29, 2026
14	KBR Granherne	Partial evidence	Leatherhead, United KingdomHQ checked Sep 29, 2026	501-1,000	648 contacts →
	Partial evidence “KBR Consulting is one of the world's foremost engineering consultancies specializing in the hydrocarbon and energy industry.” Source: RevenueBase Database · checked Sep 29, 2026
15	Grupo Unimetal	Indirect evidence	Sorocaba, BrazilHQ checked Sep 29, 2026	1,001-5,000	614 contacts →
	Indirect evidence “UNIMETAL - História de Sucesso Nossa trajetória de sucesso começou em 1984, com o beneficiamento de finos de coque verde de petróleo.” Source: RevenueBase Database · checked Sep 29, 2026
16	BECHT	Indirect evidence	Liberty Corner, NJ, United StatesHQ checked Sep 29, 2026	501-1,000	545 contacts →
	Indirect evidence “Becht partners with industrial operators across the energy and process sectors to solve complex challenges that impact safety, reliability, and profitability.” Source: RevenueBase Database · checked Sep 29, 2026
17	Ingenero	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	501-1,000	532 contacts →
	Indirect evidence “Ingenero's goal is to be the best process engineering firm by delivering the highest quality service and software solutions at the lowest cost.” Source: RevenueBase Database · checked Sep 29, 2026
18	Richard	Partial evidence	Beaumont, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	501 contacts →
	Partial evidence “RICHARD is a full-service engineering, procurement and construction firm in the petrochemical and refining industry.” Source: RevenueBase Database · checked Sep 29, 2026
19	Petrotec	Indirect evidence	Doha, QatarHQ checked Sep 29, 2026	501-1,000	496 contacts →
	Indirect evidence “Petroleum Technology Company W.L.L (Petrotec) is one of the largest providers of Engineered products and services to the energy industry in Qatar, specializing in key diverse…” Source: RevenueBase Database · checked Sep 29, 2026
20	Turn2 Specialty Companies	Partial evidence	Baytown, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	475 contacts →
	Partial evidence “Turn2 Specialty Companies is the premier provider of specialty turnaround services in the refining, petrochemical, and power industries.” Source: RevenueBase Database · checked Sep 29, 2026
21	Ineos Grangemouth	Indirect evidence	Grangemouth, United KingdomHQ checked Sep 29, 2026	1,001-5,000	466 contacts →
	Indirect evidence “Located at Grangemouth, some 40km west of Edinburgh, one of INEOS’ largest manufacturing sites directly employs c1500 highly skilled people.” Source: RevenueBase Database · checked Sep 29, 2026
22	Almuzain Gulf Saudi Contracting CO	Partial evidence	3rd Industrial, Saudi ArabiaHQ checked Sep 29, 2026	1,001-5,000	465 contacts →
	Partial evidence “ALMUZAIN is one of the leading Industrial Services Companies that caters to the ever-growing and complex demands of the Petrochemical and Refineries in Saudi Arabia.” Source: RevenueBase Database · checked Sep 29, 2026
23	Jacam Catalyst	Indirect evidence	Gardendale, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	456 contacts →
	Indirect evidence “Jacam Catalyst offers a full range of oilfield chemical manufacturing, blending, formulating, analysis, and R&D capabilities.” Source: RevenueBase Database · checked Sep 29, 2026
24	Namvaran Consulting Engineers, Managers	Partial evidence	Tehran, IranHQ checked Sep 29, 2026	501-1,000	453 contacts →
	Partial evidence “Namvaran Consulting Engineers; Managers founded in 1979 in the era of engineering service industry genesis in Iran, was in fact unfolded from a foreign base - a joint ventured…” Source: RevenueBase Database · checked Sep 29, 2026
25	Ketjen Corporation	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	440 contacts →
	Partial evidence “Ketjen is a provider of advanced catalyst solutions to leading producers in the petrochemical and refining industries.” Source: RevenueBase Database · checked Sep 29, 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: petrochemical consulting firms. 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 petrochemical consulting firms.
Partial evidence: Its own public description names part of petrochemical consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name petrochemical consulting firms. 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 4,369 petrochemical consulting firms worldwide

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Petrochemical consulting firms worldwide at a glance

As of Sep 29, 2026

15.4%Verified-email coverage

22.2Average contacts per company

11-50Median size (employees)

4.4%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

2,096

11-50

1,309

51-200

592

201-500

201

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 petrochemical consulting firms, 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 petrochemical consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “petrochemical consulting firms”. 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 petrochemical consulting firms), 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 petrochemical consulting firms, 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, 14,986 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 29, 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.

Petrochemical consulting firms by location

31 lists · largest first

Every Petrochemical consulting 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 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 petrochemical consulting firms, 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 petrochemical consulting firms are there worldwide?

RevenueBase identified 4,369 petrochemical consulting firms 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?

Imperial OIL, headquartered in Calgary, tops this list with the largest team on record.

Which country has the most petrochemical consulting firms?

The United States leads with 884 companies, followed by India (279) and Iran (228). Every petrochemical consulting firms list by country and city is linked on this page.

Which city has the most petrochemical consulting firms?

Houston leads with 194 headquartered companies, followed by Tehran (170) and Calgary (97).

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 14,986 verified decision-maker contacts tracked across these 4,369 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 29, 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.