Company lists · Data refreshed September 2026

Top 25 Energy systems integration firms based in Houston, United States

Name: Energy systems integration firms based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 109 companies tracked

RevenueBase identified 109 energy systems integration firms headquartered in Houston, United States as of September 2026 and tracks 2,061 professional contacts across them, including 887 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers energy systems integration firms 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 28, 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 28, 2026 86% judged on-target in blind review

109Companies

2,061Contacts tracked

887Verified emails

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The 25 largest energy systems integration firms based in Houston, United States

Ranked by team size

Top 25 of 109 energy systems integration firms based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to energy systems integration firms: 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	Saber Power	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	521 contacts →
	Partial evidence “Saber Power Services, a portfolio company of Greenbelt Capital Partners, is a fully integrated electrical power system services firm providing end-to-end solutions across utility…” Source: RevenueBase Database · checked Sep 28, 2026
2	Expanse Electrical CO	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	501-1,000	188 contacts →
	Partial evidence “Expanse Electrical Company is a premier provider of integrated electrical infrastructure, instrumentation and automation system solutions.” Source: RevenueBase Database · checked Sep 28, 2026
3	Integration Objects	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	106 contacts →
	Strong evidence “Integration objects is a world-leading systems integrator and solutions provider specialized in operations and manufacturing intelligence, advanced analytics, preventive detection…” Source: RevenueBase Database · checked Sep 28, 2026
4	Unify Energy Solutions	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	101 contacts →
	Strong evidence “Unify Energy Solutions is a Building Automation Systems provider in Houston, Beaumont; Central, and South Texas; as well as Colorado and Wyoming.” Source: RevenueBase Database · checked Sep 28, 2026
5	E'kabel	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	96 contacts →
	Partial evidence “At E’kabel, we design and implement solutions that drive efficiency, sustainability, and performance across energy operations.” Source: RevenueBase Database · checked Sep 28, 2026
6	Soap Engineering, LLC	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	87 contacts →
	Strong evidence “We have earned a reputation as a global leader in Design/Build & Systems Integration for more than 30 years.” Source: RevenueBase Database · checked Sep 28, 2026
7	Trugrid	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	81 contacts →
	Partial evidence “TruGrid is a leading engineering, procurement, and construction (EPC) company delivering utility-scale battery energy storage and solar projects across North America.” Source: RevenueBase Database · checked Sep 28, 2026
8	Convergentz	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	42 contacts →
	Partial evidence “As a technology leader and master systems integrator, Convergentz integrates IT and traditional building system functions to improve Building Performance, Environmental Comfort…” Source: RevenueBase Database · checked Sep 28, 2026
9	Total Energy Solutions	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	33 contacts →
	Strong evidence “Total Energy Systems (TES) is a leading provider of integrated power generation solutions with market leading equipment, engineering and support guaranteeing dependable and…” Source: RevenueBase Database · checked Sep 28, 2026
10	Veritas Total Solutions	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “Veritas is a full-service, energy consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026
11	Zero-Emission Grid, LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “Welcome to Zero-Emission Grid, LLC (ZEG)- Where Expertise Meets Ambition.” Source: RevenueBase Database · checked Sep 28, 2026
12	Acclaim Energy	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	22 contacts →
	Partial evidence “For 19 years, Acclaim Energy has been successfully advising Hospitals, Businesses, Government entities, and Schools to address their most critical energy issues such as…” Source: RevenueBase Database · checked Sep 28, 2026
13	Sunshine Renewable Solutions	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect 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 28, 2026
14	Solstice Solar	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “Solstice Solar is a Houston-based, licensed, insured, and certified Electrical Contractor specializing in residential solar and energy storage solutions.” Source: RevenueBase Database · checked Sep 28, 2026
15	Zolarzo	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	19 contacts →
	Strong evidence “We are a company specialized in the installation of solar energy systems and roof replacement.” Source: RevenueBase Database · checked Sep 28, 2026
16	Cleandesign INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
17	TDG Energy Services	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	51-200	16 contacts →
	Partial evidence “We are a specialty Energy Services company.” Source: RevenueBase Database · checked Sep 28, 2026
18	Covenant	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Covenant Communications was founded in 2001 with the sole purpose of helping you reach your full artistic potential in performance and ministry.” Source: RevenueBase Database · checked Sep 28, 2026
19	Iapetus Holdings	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	14 contacts →
	Partial evidence “Iapetus Holdings is an energy services company solving the most urgent needs around energy efficiency, reliability, sustainability and safety.” Source: RevenueBase Database · checked Sep 28, 2026
20	Apex Electric	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	14 contacts →
	Partial evidence “Apex provides power system service solutions to a wide range of sectors.” Source: RevenueBase Database · checked Sep 28, 2026
21	Connectgen LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “CONNECTING POWER, PROJECTS & PEOPLE ConnectGEN is developing renewable energy and energy storage projects across North America.” Source: RevenueBase Database · checked Sep 28, 2026
22	NS Controls, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “NS Controls, Inc.(NSC) is a full-service ISO 9001:2015, UL 508A certified integration facility, and a State-Certified Industrialized Building Manufacturer (TX · LA · Multi-State…” Source: RevenueBase Database · checked Sep 28, 2026
23	Gibson Applied Technology & Engineering Gate Energy	Indirect evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
24	Media Systems INC	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Strong evidence “Media Systems is a custom home integrator bringing together audio, video, lighting, climate, communication, video surveillance and energy management.” Source: RevenueBase Database · checked Sep 28, 2026
25	Solid State Automation And Controls	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “About SSAC Solid State Automation and Controls LLC (SSAC) is an electrical engineering company that provides comprehensive solutions for your automation and control system needs.” Source: RevenueBase Database · checked Sep 28, 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: energy systems integration firms. 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 energy systems integration firms.
Partial evidence: Its own public description names part of energy systems integration firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy systems integration firms. 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 109 energy systems integration firms based in Houston, United States

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Energy systems integration firms based in Houston, United States at a glance

As of Sep 28, 2026

43.0%Verified-email coverage

18.9Average contacts per company

11-50Median size (employees)

Sep 28, 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 109 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 energy systems integration firms, 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 “energy systems integration firms”. 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 energy systems integration firms), 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 energy systems integration firms, 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, 887 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 28, 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.

Energy systems integration firms by metro in the United States

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 energy systems integration firms, 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 energy systems integration firms are there based in Houston, United States?

RevenueBase identified 109 energy systems integration firms 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?

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

Which city in the United States has the most energy systems integration firms?

Houston leads the United States with 109 headquartered companies, followed by New York (95) and San Diego (63).

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 887 verified decision-maker contacts tracked across these 109 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 28, 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.