Company lists · Data refreshed November 2026

Top 9 Oil and gas oilfield services based in Iran

RevenueBase identified 194 company matches for oil and gas oilfield services associated with Iran as of November 2026 and tracks 7,555 professional contacts across them, including 20 with verified work emails. Tehran is the largest hub.

This list covers company matches for oil and gas oilfield services associated with Iran, 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 November 4, 2026.

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 Nov 4, 2026 How this list was built
194Companies
7,555Contacts tracked
20Verified emails
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The 9 largest oil and gas oilfield services based in Iran

Ranked by team size
Top 9 of 194 company matches for oil and gas oilfield services based in Iran, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 4, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchTehran, IranHQ recorded Nov 4, 20261,001-5,000884 contacts →

Exact match

“Oil Industries’ Commissioning and Operation Company (OICO) is incorporated to manage and execute commissioning and start-up, operation, maintenance and professional training for…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
2Exact matchTehran, IranHQ recorded Nov 4, 20261,001-5,000421 contacts →

Exact match

“North Drilling, a leading company in oil and gas well drilling, has worked out important strategies in line with its vision plan.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
3Exact matchTehran, IranHQ recorded Nov 4, 20261,001-5,000200 contacts →

Exact match

“We are proud to present over a half century of our history, beginning with formation of the Ofogh Consulting Engineers Company in 1961.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
4Exact matchTehran, IranHQ recorded Nov 4, 20261,001-5,000117 contacts →

Exact match

“Kish Petroleum Engineering (KPE), founded in as a subsidiary of Oil Industries Engineering and Construction (OIEC) Group, is an engineering and exploration company serving…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
5Exact matchTehran, IranHQ recorded Nov 4, 2026501-1,000104 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
6Exact matchTehran, IranHQ recorded Nov 4, 2026501-1,00081 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
7Exact matchTehran, IranHQ recorded Nov 4, 2026201-50071 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
8Exact matchTehran, IranHQ recorded Nov 4, 2026501-1,00044 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase
9Exact matchTehran, IranHQ recorded Nov 4, 202651-2007 contacts →

Exact match

“GETS is established as a privately held company for providing worldwide solutions to the oil and Energy Market.”

Recorded in the RevenueBase company graph · Nov 4, 2026 · View company records in RevenueBase

Showing 9 of 194 oil and gas oilfield services based in Iran

See the full list, filter by size, metro and specialty, and access 20 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Oil and gas oilfield services based in Iran at a glance

As of Nov 4, 2026
0.3%Verified-email coverage
38.9Average contacts per company
51-200Median size (employees)
70.6%Largest-city concentration · Tehran
Nov 4, 2026Page data refreshed

Companies by employee count

1-10
27
11-50
68
51-200
48
201-500
27
501-1,000
10
1,001-5,000
10
5,001-10,000
1
10001+
2

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 194 companies.

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.
What qualifies
Company records associated with Iran whose business descriptions match “oil and gas oilfield services” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 20 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 November 4, 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.

Oil and gas oilfield services by metro

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 “oil and gas oilfield services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas oilfield services are there based in Iran?

RevenueBase identified 194 company matches for oil and gas oilfield services associated with Iran as of November 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?

OIL Industries Commissioning And Operation Company Oico tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most oil and gas oilfield services?

Tehran leads with 137 company records, followed by Ahwaz (9) and Ahvaz (8).

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 20 professional contacts with verified work emails tracked across these 194 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 November 4, 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.