Company lists · Data refreshed September 2026
Top 25 Gas transmission operators worldwide
RevenueBase identified 433 gas transmission operators worldwide as of September 2026 and tracks 63,003 professional contacts across them, including 19,432 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers gas transmission operators 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 20, 2026. Country and city lists for gas transmission operators 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.
The 25 largest gas transmission operators worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,240 contacts → | ||||
Partial evidence “Atmos Energy Corporation, a natural gas-only distributor, is an S&P 500 company headquartered in Dallas.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,721 contacts → | ||||
Strong evidence “Snam is Europe’s leading operator in natural gas transport, storage and regasification.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,312 contacts → | ||||
Indirect evidence “Gasunie is a European energy infrastructure company.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,037 contacts → | ||||
Partial evidence “We are Cadent, the largest gas distribution network in the UK.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,666 contacts → | ||||
Partial evidence “National Gas is securing Britain’s energy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,618 contacts → | ||||
Indirect evidence “T.D.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,611 contacts → | ||||
Indirect evidence “Founded in 1872, Comgás has seen many changes before being what it is today, in over 140 years of history.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,492 contacts → | ||||
Indirect evidence “GRTgaz construit, entretient et développe en France 85% du réseau de transport de gaz naturel à haute pression.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 1,229 contacts → | ||||
Indirect evidence “In the spirit of reconciliation, we acknowledge the traditional territories and homelands on which many of our ATCO operations and facilities are located.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,159 contacts → | ||||
Partial evidence “Somos la compañía de energía lider en la prestación de servicios integrados en la industria Oil & Gas Nuestros servicios y soluciones permiten integran toda la cadena de valor del…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,083 contacts → | ||||
Partial evidence “Enagas is the Technical Manager of the Spanish Gas System and the main carrier of natural gas in Spain.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1,060 contacts → | ||||
Partial evidence “Somos una empresa nacional de servicios públicos, líder en el sector de distribución de gas natural, con más de clientes.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 1,042 contacts → | ||||
Indirect evidence “We are a fully independent infrastructure group headquartered in Belgium with almost 1,500 employees.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 1,002 contacts → | ||||
Indirect evidence “Opérateur majeur de transport de gaz à haute pression, NaTran assure une mission de service public visant à garantir la continuité d’acheminement du gaz et s’engage résolument en…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 929 contacts → | ||||
Indirect evidence “Boardwalk Pipelines powers possibility with innovative energy infrastructure that helps markets grow and communities thrive.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 783 contacts → | ||||
Indirect evidence “GAZ-SYSTEM is a strategic company for Poland’s economy and energy security.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 762 contacts → | ||||
Partial evidence “We are Wales & West Utilities, your gas emergency and pipeline service.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 686 contacts → | ||||
Partial evidence “Sui Southern Gas Company (SSGC) is a Public Listed Large Scale Company (LSC) and is a Pakistan’s leading integrated gas Company.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 682 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 662 contacts → | ||||
Partial evidence “GSPC Gas Company Limited which excels in operational efficiencies and Gujarat Gas Company Limited, a pioneer in business brings 25 years of excellence in gas distribution business…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 582 contacts → | ||||
Indirect evidence “Polska Spółka Gazownictwa sp.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 562 contacts → | ||||
Partial evidence “Since our founding in 1885, Peoples has been providing safe, reliable natural gas to millions of Pennsylvanians.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 496 contacts → | ||||
Indirect evidence “OGE lässt gasförmige Moleküle fließen.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 484 contacts → | ||||
Strong evidence “Southern Star is a leading transporter of natural gas to America’s heartland, with about 5,800 miles of natural gas transmission pipeline in the Midwest and Mid-Continent regions…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 475 contacts → | ||||
Strong evidence “TBG has been the owner and operator of the Bolivia-Brazil Gas Pipeline since delivering up to 30.08 million cubic metres of natural gas per day to the Brazilian market.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: gas transmission operators. 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 gas transmission operators.
- Partial evidence
- Its own public description names part of gas transmission operators, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name gas transmission operators. 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 433 gas transmission operators worldwide
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Gas transmission operators worldwide at a glance
As of Sep 20, 2026Companies by employee count
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 gas transmission operators, 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 gas transmission operators are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “gas transmission operators”. 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 gas transmission operators), 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 gas transmission operators, 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, 19,432 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 20, 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.
Gas transmission operators by location
6 lists · largest firstEvery Gas transmission operators list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 gas transmission operators, 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 gas transmission operators are there worldwide?
RevenueBase identified 433 gas transmission operators 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?
Atmos Energy, headquartered in Dallas, tops this list with the largest team on record.
Which country has the most gas transmission operators?
The United States leads with 69 companies, followed by Brazil (48) and India (41). Every gas transmission operators list by country and city is linked on this page.
Which city has the most gas transmission operators?
Houston leads with 15 headquartered companies, followed by Rio De Janeiro (6) and Zurich (6).
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 19,432 verified decision-maker contacts tracked across these 433 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 20, 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.