Company lists · Data refreshed September 2026

Top 12 Oil and gas consulting firms based in Iran

RevenueBase identified 225 oil and gas consulting firms headquartered in Iran as of September 2026 and tracks 6,771 professional contacts across them, including 21 with verified work emails. Tehran is the largest hub.

This list covers oil and gas consulting firms 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 14, 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 14, 2026 86% judged on-target in blind review
225Companies
6,771Contacts tracked
21Verified emails
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The 12 largest oil and gas consulting firms based in Iran

Ranked by team size
Top 12 of 225 oil and gas consulting firms based in Iran, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to oil and gas 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceTehran, IranHQ checked Sep 14, 2026501-1,000453 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 14, 2026
2Strong evidenceTehran, IranHQ checked Sep 14, 20261,001-5,000404 contacts →

Strong 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 14, 2026
3Partial evidenceTehran, IranHQ checked Sep 14, 20261,001-5,000191 contacts →

Partial 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 14, 2026
4Indirect evidenceTehran, IranHQ checked Sep 14, 2026201-500186 contacts →

Indirect evidence

“SeaLand Engineering & Well Services is established through multinational investment.”

Source: RevenueBase Database · checked Sep 14, 2026
5Partial evidenceTehran, IranHQ checked Sep 14, 20261,001-5,000106 contacts →

Partial 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 14, 2026
6Strong evidenceTehran, IranHQ checked Sep 14, 2026201-500105 contacts →

Strong 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 14, 2026
7Indirect evidenceTehran, IranHQ checked Sep 14, 2026501-1,00094 contacts →

Indirect evidence

“Pars Energy Gostar Drilling and Exploration Company (PEDEX) was established in 1981 as a construction company and a subsidiary of Mostazafan Foundation, and it started its…”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceTehran, IranHQ checked Sep 14, 2026501-1,00070 contacts →

Indirect 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 14, 2026
9Partial evidenceTehran, IranHQ checked Sep 14, 20261,001-5,00057 contacts →

Partial evidence

“E&P Company in Oil industry”

Source: RevenueBase Database · checked Sep 14, 2026
10Strong evidenceTehran, IranHQ checked Sep 14, 2026201-50055 contacts →

Strong 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 14, 2026
11Strong evidenceTehran, IranHQ checked Sep 14, 2026501-1,00043 contacts →

Strong evidence

Oil Exploration Operations Company (OEOC) is one of the most reputable private company in the upstream sector of Iranian oil and gas industry.”

Source: RevenueBase Database · checked Sep 14, 2026
12Partial evidenceAhvaz, IranHQ checked Sep 14, 202611-5010 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 14, 2026

Showing 12 of 225 oil and gas consulting firms based in Iran

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Oil and gas consulting firms based in Iran at a glance

As of Sep 14, 2026
0.3%Verified-email coverage
30.1Average contacts per company
11-50Median size (employees)
79.6%Largest-city concentration · Tehran
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
40
11-50
73
51-200
66
201-500
24
501-1,000
12
1,001-5,000
9
10001+
1

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 225 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 oil and gas 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.
What qualifies
Companies headquartered in Iran whose own description of what they do matches “oil and gas 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 oil and gas 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 oil and gas consulting firms, 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, 21 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 14, 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.

Oil and gas consulting firms by metro

  • Oil and gas consulting firms in Tehran179

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 oil and gas 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 oil and gas consulting firms are there based in Iran?

RevenueBase identified 225 oil and gas consulting firms 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 oil and gas consulting firms?

Tehran leads with 179 headquartered companies, followed by Isfahan (5) and Shiraz (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 21 verified decision-maker contacts tracked across these 225 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 14, 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.