Company lists · Data refreshed September 2026

Top 25 Renewable energy mining operators based in Houston, United States

Name: Renewable energy mining operators based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 83 companies tracked

RevenueBase identified 83 renewable energy mining operators headquartered in Houston, United States as of September 2026 and tracks 5,176 professional contacts across them, including 2,096 with verified work emails. New York is the largest hub.

This list covers renewable energy mining operators headquartered in Houston, 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 17, 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 17, 2026 86% judged on-target in blind review

83Companies

5,176Contacts tracked

2,096Verified emails

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The 25 largest renewable energy mining operators based in Houston, United States

Ranked by team size

Top 25 of 83 renewable energy mining operators based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy mining operators: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Calpine	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,112 contacts →
	Indirect evidence “A business unit of Constellation (NASDAQ: CEG), Calpine Corporation is America’s largest generator of electricity from natural gas and geothermal resources with operations in…” Source: RevenueBase Database · checked Sep 17, 2026
2	Sunnova Energy	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	501-1,000	906 contacts →
	Partial evidence “Sunnova Energy International Inc.(NYSE: NOVA) is an industry-leading energy services company focused on making clean energy more accessible, reliable, and affordable for…” Source: RevenueBase Database · checked Sep 17, 2026
3	EDP Renewables North America	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	425 contacts →
	Strong evidence “EDP Renewables North America LLC (EDPR NA), its affiliates, and its subsidiaries develop, construct, own, and operate wind farms, solar parks, and energy storage systems…” Source: RevenueBase Database · checked Sep 17, 2026
4	Spruce Power	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	186 contacts →
	Partial evidence “Spruce Power is one of the largest owner-operators of residential solar portfolios in the US.” Source: RevenueBase Database · checked Sep 17, 2026
5	Catalyze	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	156 contacts →
	Strong evidence “Founded in 2017, Catalyze is a fully integrated developer and Independent Power Producer (IPP) of distributed renewable energy assets.” Source: RevenueBase Database · checked Sep 17, 2026
6	Clean Energy Services	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	101 contacts →
	Strong evidence “Clean Energy Services provides reliable services for renewable assets.” Source: RevenueBase Database · checked Sep 17, 2026
7	Alpha Generation	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	93 contacts →
	Indirect evidence “Alpha Generation manages and operates power generation facilities that are well positioned to provide reliable, secure, safe, and sustainable sources of power and meet the growing…” Source: RevenueBase Database · checked Sep 17, 2026
8	Osaka GAS USA	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	89 contacts →
	Partial evidence “We develop, own, and operate energy infrastructure to contribute to the stable and sustainable energy supply in the US and globally.” Source: RevenueBase Database · checked Sep 17, 2026
9	Rhythm Energy	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	84 contacts →
	Strong evidence “Rhythm Energy is helping the Lone Star State shine by offering 100% renewable energy plans to Texans.” Source: RevenueBase Database · checked Sep 17, 2026
10	Tokyo GAS America LTD	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	52 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
11	Radial Power	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	42 contacts →
	Partial evidence “Radial Power is a national developer, owner, and operator of distributed solar and storage projects serving commercial, industrial, and community solar customers across the United…” Source: RevenueBase Database · checked Sep 17, 2026
12	Integratesun	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	38 contacts →
	Partial evidence “We are a Texas based residential and commercial solar development company that offers solar energy systems in TX, CA,GA, OK, AZ, NV, DC, MD & PA.” Source: RevenueBase Database · checked Sep 17, 2026
13	Renewa	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	36 contacts →
	Strong evidence “Renewa is a renewables company focused on acquisitions and investments within the solar, wind and renewable energy industries.” Source: RevenueBase Database · checked Sep 17, 2026
14	Chariot Energy	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	33 contacts →
	Partial evidence “Chariot Energy is a retail electricity provider and energy solutions company serving residential, commercial, and industrial customers across competitive U.S.” Source: RevenueBase Database · checked Sep 17, 2026
15	Bioeco Energy	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	24 contacts →
	Strong evidence “Bioeco Energy’s alternative energy solutions capture the renewable power of the sun, fueling new possibilities for your business and home.” Source: RevenueBase Database · checked Sep 17, 2026
16	Sunshine Renewable Solutions	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	21 contacts →
	Partial evidence “Texas' first NABCEP Accredited PV Installation Company • NABCEP Certified PV Installation Professional # PV-102117-017952 Sunshine Renewable Solutions was established to address…” Source: RevenueBase Database · checked Sep 17, 2026
17	Zolarzo	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	19 contacts →
	Partial evidence “We are a company specialized in the installation of solar energy systems and roof replacement.” Source: RevenueBase Database · checked Sep 17, 2026
18	Powertransitions	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial evidence “PowerTransitions® acquires operating and retired power generation and industrial facilities to transform them into modern, resilient energy infrastructure campuses.” Source: RevenueBase Database · checked Sep 17, 2026
19	Ceiba Energy	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1-10	17 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
20	Endeavor Energy Holdings LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	16 contacts →
	Partial evidence “Endeavor Energy is a leading independent power company focused on developing, acquiring, financing, constructing, owning, and operating power generation projects in Africa.” Source: RevenueBase Database · checked Sep 17, 2026
21	Wattbridge	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1-10	14 contacts →
	Partial evidence “WattBridge Energy is a Houston, Texas-based global independent power producer.” Source: RevenueBase Database · checked Sep 17, 2026
22	Bison Fuels	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1-10	13 contacts →
	Indirect evidence “Green hydrogen represents one of our planet’s best hopes for a sustainable future.” Source: RevenueBase Database · checked Sep 17, 2026
23	547 Energy	Indirect evidence	Houston, United StatesHQ checked Sep 17, 2026	1-10	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
24	Connectgen LLC	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	11 contacts →
	Strong evidence “CONNECTING POWER, PROJECTS & PEOPLE ConnectGEN is developing renewable energy and energy storage projects across North America.” Source: RevenueBase Database · checked Sep 17, 2026
25	Clean Line Energy Partners	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	11 contacts →
	Strong evidence “Clean Line Energy is developing a series of transmission lines that will deliver thousands of megawatts of renewable power from the windiest areas of the United States to…” Source: RevenueBase Database · checked Sep 17, 2026

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 energy mining 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 renewable energy mining operators.
Partial evidence: Its own public description names part of renewable energy mining operators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy mining 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 83 renewable energy mining operators based in Houston, United States

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Renewable energy mining operators based in Houston, United States at a glance

As of Sep 17, 2026

40.5%Verified-email coverage

62.4Average contacts per company

11-50Median size (employees)

130.1%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 83 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 energy mining 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.
What qualifies: Companies headquartered in Houston, United States whose own description of what they do matches “renewable energy mining 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 renewable energy mining 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 renewable energy mining operators, and records with no verified work email. Companies headquartered outside Houston 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, 2,096 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 17, 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.

Renewable energy mining operators by metro in the United States

Renewable energy mining operators in New York108
Renewable energy mining operators in Houston83
Renewable energy mining operators in Austin49
Renewable energy mining operators in Chicago44
Renewable energy mining operators in San Francisco40
Renewable energy mining operators in Dallas39
Renewable energy mining operators in Boston34
Renewable energy mining operators in San Diego33
Renewable energy mining operators in Los Angeles32
Renewable energy mining operators in Denver28

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 energy mining 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 renewable energy mining operators are there based in Houston, United States?

RevenueBase identified 83 renewable energy mining operators headquartered in Houston, 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?

Calpine, headquartered in Houston, tops this list with the largest team on record.

Which city has the most renewable energy mining operators?

New York leads with 108 headquartered companies, followed by Houston (83) and Austin (49).

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 2,096 verified decision-maker contacts tracked across these 83 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 17, 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.