Company lists · Data refreshed September 2026
Top 25 Renewable natural gas companies based in the United States
RevenueBase identified 178 renewable natural gas companies headquartered in the United States as of September 2026 and tracks 4,925 professional contacts across them, including 2,650 with verified work emails. Houston is the largest hub.
This list covers renewable natural gas companies headquartered in the United States, 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 16, 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.
The 25 largest renewable natural gas companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 676 contacts → | ||||
Strong evidence “Clean Energy pioneered renewable natural gas (RNG) as a vehicle fuel in the U.S.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 444 contacts → | ||||
Indirect evidence “Chesapeake Utilities Corporation is a diversified energy delivery company, listed on the New York Stock Exchange (NYSE: CPK).” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 359 contacts → | ||||
Strong evidence “Certarus is the North American market leader in providing low carbon energy solutions through a fully integrated compressed natural gas (CNG) platform.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 261 contacts → | ||||
Strong evidence “New Jersey Natural Gas is the principal subsidiary of New Jersey Resources, a Fortune company, that provides safe and reliable natural gas and renewable energy services, including…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 218 contacts → | ||||
Partial evidence “BHE Renewables delivers sustainable energy solutions for customers and communities by producing renewable energy for both the wholesale market and for customers under long-term…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 183 contacts → | ||||
Strong evidence “OPAL Fuels Inc.(Nasdaq: OPAL) is a leading vertically integrated renewable fuels platform involved in the production and distribution of renewable natural gas (RNG) for the…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 104 contacts → | ||||
Partial evidence “Since 1904, Hawaiʻi Gas has been the only franchised gas company in Hawaiʻi.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 96 contacts → | ||||
Partial evidence “Nacelle is a gas conditioning and processing company serving two distinct markets: biogas and oil and gas.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 91 contacts → | ||||
Strong evidence “Biogas Engineering is an award winning, one of the fastest growing companies in field of Renewable Natural Gas.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 86 contacts → | ||||
Indirect evidence “Morrow Energy is the backbone of American RNG.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 82 contacts → | ||||
Indirect evidence “Generate Upcycle is a global leader in circular waste management, and the largest owner and operator of food waste-based organics recycling facilities in North America.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 80 contacts → | ||||
Indirect evidence “Upwing Energy is securing global energy needs in an economical and environmentally sustainable way.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 79 contacts → | ||||
Partial evidence “Montauk is a fully integrated renewable energy company specializing in the management, recovery and conversion of landfill methane into renewable energy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 78 contacts → | ||||
Strong evidence “Net Power's (NYSE: NPWR) mission is to transform natural gas into the lowest cost form of clean firm power.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 70 contacts → | ||||
Indirect evidence “Noble Environmental is an industry leading environmental services company headquartered in Pittsburgh, PA.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 69 contacts → | ||||
Partial evidence “Founded in 2011, Amp Americas builds, manages, operates and maintains RNG production facilities that convert dairy waste into carbon-negative hydrogen, renewable transportation…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 65 contacts → | ||||
Strong evidence “Founded in 2011, Xpress Natural Gas (XNG) is the industry leader in the rapid, reliable delivery of compressed natural gas (CNG) and renewable natural gas (RNG).” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 48 contacts → | ||||
Strong evidence “Vision RNG brought together a team of seasoned professionals with decades of experience across the natural gas and waste management industries.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 48 contacts → | ||||
Partial evidence “REV is a leading renewable energy project development and mobile energy services company.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 46 contacts → | ||||
Strong evidence “Morrow Renewables, LLC, has been busy reducing global methane emissions, and revolutionizing landfill gas (LFG) collection and refinement technologies utilizing its own patented…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 41 contacts → | ||||
Indirect evidence “On a planet with over seven billion people, our mission is to re-imagine reusable resources to create a valuable supply chain of products for farms, food processors and…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 37 contacts → | ||||
Strong evidence “Kinder Morgan RNG is a turn-key provider of environmentally friendly renewable natural gas (RNG) and liquefied natural gas (LNG) solutions to customers in the transportation…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 36 contacts → | ||||
Partial evidence “Founded in 2004, Sierra Energy is a waste gasification and renewable energy company located in Davis, California.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 35 contacts → | ||||
Strong evidence “Leading dairy renewable natural gas developer with projects in South Dakota, Iowa, Wisconsin, Michigan, and Vermont.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 34 contacts → | ||||
Partial evidence “With decades of experience in gas processing, dairies, and digester construction, Northern Biogas is the perfect partner for your RNG project.” Source: RevenueBase Database · checked Sep 16, 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: renewable natural gas companies. 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 renewable natural gas companies.
- Partial evidence
- Its own public description names part of renewable natural gas companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name renewable natural gas companies. 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 178 renewable natural gas companies based in the United States
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Renewable natural gas companies based in the United States at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 178 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 renewable natural gas companies, 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 the United States whose own description of what they do matches “renewable natural gas companies”. 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 renewable natural gas companies), 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 renewable natural gas companies, and records with no verified work email. Companies headquartered outside United States 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, 2,650 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 16, 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.
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 renewable natural gas companies, 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 renewable natural gas companies are there based in the United States?
RevenueBase identified 178 renewable natural gas companies headquartered in the United States 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?
Clean Energy, headquartered in Newport Beach, tops this list with the largest team on record.
Which city has the most renewable natural gas companies?
Houston leads with 9 headquartered companies, followed by Denver (6) and Atlanta (4).
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 2,650 verified decision-maker contacts tracked across these 178 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 16, 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.
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