Company lists · Data refreshed September 2026

Top 14 Petroleum engineering consultants based in Iran

Name: Petroleum engineering consultants based in Iran
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 258 companies tracked

RevenueBase identified 258 petroleum engineering consultants headquartered in Iran as of September 2026 and tracks 9,252 professional contacts across them, including 26 with verified work emails. Tehran is the largest hub.

This list covers petroleum engineering consultants headquartered in Iran, 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 17, 2026.

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 17, 2026 86% judged on-target in blind review

258Companies

9,252Contacts tracked

26Verified emails

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The 14 largest petroleum engineering consultants based in Iran

Ranked by team size

Top 14 of 258 petroleum engineering consultants based in Iran, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to petroleum engineering consultants: 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	Namvaran Consulting Engineers, Managers	Partial evidence	Tehran, IranHQ checked Sep 17, 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 17, 2026
2	North Drilling Company	Indirect evidence	Tehran, IranHQ checked Sep 17, 2026	1,001-5,000	404 contacts →
	Indirect evidence “North Drilling, a leading company in oil and gas well drilling, has worked out important strategies in line with its vision plan.” Source: RevenueBase Database · checked Sep 17, 2026
3	Enerchimi	Partial evidence	Tehran, IranHQ checked Sep 17, 2026	201-500	221 contacts →
	Partial evidence “Enerchimi Engineering Company was established in July 1980 by a group of qualified and experienced executive managers of the National Iranian Oil Company with the objective of…” Source: RevenueBase Database · checked Sep 17, 2026
4	Iran Ofogh Industrial Development Company Ioid	Indirect evidence	Tehran, IranHQ checked Sep 17, 2026	1,001-5,000	191 contacts →
	Indirect evidence “We are proud to present over a half century of our history, beginning with formation of the Ofogh Consulting Engineers Company in 1961.” Source: RevenueBase Database · checked Sep 17, 2026
5	Sealand Engineering And Well Services	Partial evidence	Tehran, IranHQ checked Sep 17, 2026	201-500	186 contacts →
	Partial evidence “SeaLand Engineering & Well Services is established through multinational investment.” Source: RevenueBase Database · checked Sep 17, 2026
6	Kish Petroleum Engineering KPE	Strong evidence	Tehran, IranHQ checked Sep 17, 2026	1,001-5,000	106 contacts →
	Strong evidence “Kish Petroleum Engineering (KPE), founded in as a subsidiary of Oil Industries Engineering and Construction (OIEC) Group, is an engineering and exploration company serving…” Source: RevenueBase Database · checked Sep 17, 2026
7	Ndec Namavaran Delvar Engineering And Construction	Partial evidence	Tehran, IranHQ checked Sep 17, 2026	201-500	105 contacts →
	Partial evidence “Namavaran Delvar Engineering and Construction (NDEC) was established by a group of veteran PM professionals in oil, gas and petrochemical industries in 2004.” Source: RevenueBase Database · checked Sep 17, 2026
8	Danial Petro Company	Partial evidence	Tehran, IranHQ checked Sep 17, 2026	501-1,000	70 contacts →
	Partial evidence “Daniel Petro Company has started its activities since 2010 with the aim of conducting study activities and providing technical and engineering services inside and outside of the…” Source: RevenueBase Database · checked Sep 17, 2026
9	Ostovan Kish Drilling Company	Indirect evidence	Tehran, IranHQ checked Sep 17, 2026	201-500	61 contacts →
	Indirect evidence “Ostovan Kish Drilling Company (OKDC) has been established as a private company in 2011 to implement and manage offshore and onshore drilling operations and since then, has been…” Source: RevenueBase Database · checked Sep 17, 2026
10	Global Petro Tech Kish	Indirect evidence	Tehran, IranHQ checked Sep 17, 2026	1,001-5,000	57 contacts →
	Indirect evidence “E&P Company in Oil industry” Source: RevenueBase Database · checked Sep 17, 2026
11	Shargan	Partial evidence	Tehran, IranHQ checked Sep 17, 2026	201-500	55 contacts →
	Partial evidence “SHARGAN was established in 1994 to build an indigenous technological base for design, engineering as well as project management and technical services required by Oil, Gas &…” Source: RevenueBase Database · checked Sep 17, 2026
12	Petro Kariz Omid Kish Pkok	Indirect evidence	Tehran, IranHQ checked Sep 17, 2026	51-200	37 contacts →
	Indirect evidence “Petro Kariz Directional Services, a PEDC company, is a leading provider of Directional Drilling and Measurement While Drilling services.” Source: RevenueBase Database · checked Sep 17, 2026
13	Arman Sakht Energy Karoon Co. Asakco	Partial evidence	Ahvaz, IranHQ checked Sep 17, 2026	11-50	10 contacts →
	Partial evidence “ASAK Consulting Engineering, established in 2018, provides tailored solutions and expertise that bring significant value to national and international governmental and private…” Source: RevenueBase Database · checked Sep 17, 2026
14	Energy Kala Jonoob CO	Partial evidence	Tehran, IranHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “Energy Kala Jonoob (EKJ) is an engineering and commercial company specialized in the field of Industrial procurement for Oil, Gas and petrochemical industries as well as other…” Source: RevenueBase Database · checked Sep 17, 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: petroleum engineering consultants. 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 petroleum engineering consultants.
Partial evidence: Its own public description names part of petroleum engineering consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name petroleum engineering consultants. 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 14 of 258 petroleum engineering consultants based in Iran

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Petroleum engineering consultants based in Iran at a glance

As of Sep 17, 2026

0.3%Verified-email coverage

35.9Average contacts per company

51-200Median size (employees)

76.7%Largest-city concentration · Tehran

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for Iran, so it is reported there. Company counts and contact totals on this page are exact for Iran, over 258 companies.

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 petroleum engineering consultants, 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.
What qualifies: Companies headquartered in Iran whose own description of what they do matches “petroleum engineering consultants”. 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 petroleum engineering consultants), 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 petroleum engineering consultants, and records with no verified work email. Companies headquartered outside Iran are excluded even when they keep an office there.
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, 26 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 17, 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.

Petroleum engineering consultants by metro

Petroleum engineering consultants in Tehran198

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 petroleum engineering consultants, 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 petroleum engineering consultants are there based in Iran?

RevenueBase identified 258 petroleum engineering consultants headquartered in Iran 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?

Namvaran Consulting Engineers, Managers, headquartered in Tehran, tops this list with the largest team on record.

Which city has the most petroleum engineering consultants?

Tehran leads with 198 headquartered companies, followed by Tabriz (6) and Ahvaz (5).

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 26 verified decision-maker contacts tracked across these 258 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 17, 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.