Company lists · Data refreshed November 2026

Top 17 Plant engineering services based in Houston, United States

Name: Plant engineering services based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 405 companies tracked

RevenueBase identified 405 company matches for plant engineering services associated with Houston, United States as of November 2026 and tracks 35,944 professional contacts across them, including 9,871 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers company matches for plant engineering services associated with Houston, United States, 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 November 6, 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 Nov 6, 2026 How this list was built

405Companies

35,944Contacts tracked

9,871Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 17 largest plant engineering services based in Houston, United States

Ranked by team size

Top 17 of 405 company matches for plant engineering services based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Mcdermott International, LTD	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	10001+	21,606 contacts →
	Exact match “McDermott is a premier provider of engineering and construction solutions to the energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Gulf Companies	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,165 contacts →
	Exact match “At Gulf Companies, we are driven by our mission to serve a vital role in the global energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Quanta Infrastructure Solutions Group	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	711 contacts →
	Exact match “Quanta Infrastructure Solutions Group (QISG) is a recognized leader in EPC, design-build, and CMAR services for electrical infrastructure, wastewater and specialty projects…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Ingenero	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	559 contacts →
	Exact match “Ingenero's goal is to be the best process engineering firm by delivering the highest quality service and software solutions at the lowest cost.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	CAM Industrial Solutions LLC	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	5,001-10,000	465 contacts →
	Exact match “With decades of refinery, petrochemical, fertilizer and power plant experience, CAM Industrial Solutions has become the standard in heavy industrial maintenance, turnaround and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	ARION	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	201-500	321 contacts →
	Exact match “We are A-Team of engineers specializing in the energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	CTS Complete Technical Services	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	51-200	268 contacts →
	Exact match “CTS - Complete Technical Services, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Holloman Corporation	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	151 contacts →
	Exact match “Holloman Corporation is an Engineering, Procurement, and Construction company with capabilities to design, build, and service energy-related projects on a global level.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Rush Resources	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	201-500	136 contacts →
	Exact match “Improve and optimize capital construction, shutdown, turnaround and maintenance project experiences-no matter their stage of completion or location-through proven, rapid…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Relevant Industrial, LLC	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	201-500	115 contacts →
	Exact match “Relevant Solutions is the preferred provider of process equipment solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Prismecs	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	51-200	103 contacts →
	Exact match “Prismecs is the trusted partner for operators that expect more from their supply chain and engineered solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Sis-Tech	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	51-200	103 contacts →
	Exact match “We are a respected and innovative solutions provider focusing on process safety, reliability and control.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Dynamic Engineering	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	51-200	98 contacts →
	Exact match “Dynamic was founded in 1985 as an Engineering Design Firm to primarily serve the Fine Chemicals and Pharmaceuticals Markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Novetus	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	51-200	89 contacts →
	Exact match “Novetus is an engineering company that focuses on Capital Project Engineering, Project Controls, Asset Integrity, Safety & Risk Management, and Process Safety Management…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Strategy Engineering And Consulting, LLC	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	51-200	85 contacts →
	Exact match “Strategy Engineering is a privately-owned technical services company located within the Energy Corridor in Houston, TX.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	F&c Engineers	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	51-200	75 contacts →
	Exact match “F&C Engineers provides full services from concept to start up for the oil and gas upstream, midstream, and turbomachinery industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	A&s Engineers, INC	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	51-200	73 contacts →
	Exact match “The objective of A&S is to provide municipal engineering services, with focus on water districts, municipalities, and land development.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “plant engineering services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 17 of 405 plant engineering services based in Houston, United States

See the full list, filter by size, metro and specialty, and access 9,871 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Plant engineering services based in Houston, United States at a glance

As of Nov 6, 2026

27.5%Verified-email coverage

88.8Average contacts per company

11-50Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

152

11-50

154

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 405 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 Houston, United States whose business descriptions match “plant engineering services” 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 9,871 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 November 6, 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.

Plant engineering services by metro in the United States

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 “plant engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many plant engineering services are there based in Houston, United States?

RevenueBase identified 405 company matches for plant engineering services associated with Houston, United States as of November 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?

Mcdermott International, LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most plant engineering services?

Houston leads the United States with 405 company records, followed by New York (110) and Austin (82).

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 9,871 professional contacts with verified work emails tracked across these 405 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 November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 405 plant engineering services based in Houston, United States. Start with a free account, no credit card.

Download this list →

Related lists

Plant engineering services by geography

Browse the directory

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.