Company lists · Data refreshed October 2026

Top 8 Energy infrastructure o and m companies based in Iran

RevenueBase identified 121 company matches for energy infrastructure o and m companies associated with Iran as of October 2026 and tracks 5,473 professional contacts across them, including 47 with verified work emails. Tehran is the largest hub.

This list covers company matches for energy infrastructure o and m companies 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 October 12, 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 Oct 12, 2026 How this list was built
121Companies
5,473Contacts tracked
47Verified emails
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The 8 largest energy infrastructure o and m companies based in Iran

Ranked by team size
Top 8 of 121 company matches for energy infrastructure o and m companies based in Iran, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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 Oct 12, 20261,001-5,000835 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 · Oct 12, 2026 · View company records in RevenueBase
2Exact matchTehran, IranHQ recorded Oct 12, 20261,001-5,000290 contacts →

Exact match

“Pasargad Energy (PEDC) is an independent and privately owned energy company located in Tehran, Iran.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3Exact matchTehran, IranHQ recorded Oct 12, 2026501-1,000125 contacts →

Exact match

“A Canadian consultancy company, whose name changed to Ghods Niroo Engineering Company, founded in 1975, is one of the most continually operating engineering firms in Iran and The…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4Exact matchTehran, IranHQ recorded Oct 12, 2026501-1,00072 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 · Oct 12, 2026 · View company records in RevenueBase
5Exact matchTehran, IranHQ recorded Oct 12, 202651-20069 contacts →

Exact match

“TABA Service Company established in Jan 2015 as one affiliated TANA Group to follow up Service activities, for implementation of infrastructure projects related to different…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6Exact matchTehran, IranHQ recorded Oct 12, 202651-20061 contacts →

Exact match

“SazehSazan (a private joint-stock company) started its activities in 1998 with management of large scale infrastructure projects construction.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7Exact matchTehran, IranHQ recorded Oct 12, 202651-20047 contacts →

Exact match

“Arian MahTaab Gostar Company, as a private sector pioneer in the field of power generation investment, was established in 2002 in order to contribute in power industry in Iran and…”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8Exact matchMashhad, IranHQ recorded Oct 12, 202611-506 contacts →

Exact match

“شرکت آوات انرژی پارس ، مجری احداث نیروگاههای دیزلی و گاز سوز ، در سال 1391 با همت گروهی از مدیران با سابقه صنعت برق کشور در خراسان کهن تاسیس گردید.”

Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

Showing 8 of 121 energy infrastructure o and m companies based in Iran

See the full list, filter by size, metro and specialty, and access 47 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy infrastructure o and m companies based in Iran at a glance

As of Oct 12, 2026
0.9%Verified-email coverage
45.2Average contacts per company
51-200Median size (employees)
75.2%Largest-city concentration · Tehran
Oct 12, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
43
51-200
30
201-500
14
501-1,000
6
1,001-5,000
14
5,001-10,000
2
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 121 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 “energy infrastructure o and m 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. 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 47 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 12, 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.

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 “energy infrastructure o and m companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy infrastructure o and m companies are there based in Iran?

RevenueBase identified 121 company matches for energy infrastructure o and m companies associated with Iran 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?

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 energy infrastructure o and m companies?

Tehran leads with 91 company records, followed by Mashhad (6) and Isfahan (3).

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 professional contacts with verified work emails tracked across these 121 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 12, 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.