Company lists · Data refreshed September 2026

Top 25 Engineering and manufacturing consulting firms based in Houston, United States

Name: Engineering and manufacturing consulting 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 29, 2026 324 companies tracked

RevenueBase identified 324 engineering and manufacturing consulting firms headquartered in Houston, United States as of September 2026 and tracks 13,218 professional contacts across them, including 3,314 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers engineering and manufacturing consulting 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 29, 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 29, 2026 86% judged on-target in blind review

324Companies

13,218Contacts tracked

3,314Verified emails

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The 25 largest engineering and manufacturing consulting firms based in Houston, United States

Ranked by team size

Top 25 of 324 engineering and manufacturing consulting firms based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to engineering and manufacturing consulting 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	Alliantgroup	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,595 contacts →
	Strong evidence “alliant is the nation's premier consulting and management engineering firm.” Source: RevenueBase Database · checked Sep 29, 2026
2	Rimkus	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,184 contacts →
	Indirect evidence “Consultants.” Source: RevenueBase Database · checked Sep 29, 2026
3	Englobal	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	201-500	1,183 contacts →
	Partial evidence “Who We Are Englobal Founded in 1985, ENGlobal (NASDAQ: ENG) is a specialty engineering services firm that focuses on automation solutions and select EPCM projects for the energy…” Source: RevenueBase Database · checked Sep 29, 2026
4	Ingenero	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	501-1,000	532 contacts →
	Partial evidence “Ingenero's goal is to be the best process engineering firm by delivering the highest quality service and software solutions at the lowest cost.” Source: RevenueBase Database · checked Sep 29, 2026
5	Lockwood, Andrews & Newnam, Inc. LAN	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	201-500	461 contacts →
	Strong evidence “Lockwood, Andrews & Newnam, Inc.(LAN) is a full-service consulting firm offering planning, engineering and program management services.” Source: RevenueBase Database · checked Sep 29, 2026
6	DBR	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	201-500	227 contacts →
	Partial evidence “Founded in 1972, DBR has evolved into the premier MEP engineering firm in Texas, providing mechanical, electrical, and plumbing engineering services, as well as building…” Source: RevenueBase Database · checked Sep 29, 2026
7	Zentech Incorporated	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	181 contacts →
	Strong evidence “Zentech, Inc, an engineering consulting and software development company, headquartered in Houston, TX, is comprised of experienced professionals specializing in providing…” Source: RevenueBase Database · checked Sep 29, 2026
8	Vias3d	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	201-500	145 contacts →
	Partial evidence “VIAS3D provides integrated engineering solutions using virtual design experience and data analytics in a variety of industries.” Source: RevenueBase Database · checked Sep 29, 2026
9	Shah Smith & Associates, INC	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	134 contacts →
	Strong evidence “Shah Smith & Associates, Inc.(SSA) is a 120+ employee Mechanical, Electrical, and Plumbing (MEP) consulting engineering firm with offices in Houston, Austin & Dallas.” Source: RevenueBase Database · checked Sep 29, 2026
10	Vulcan Industrial	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	109 contacts →
	Strong evidence “Based in Houston, we specialize in engineering, design and manufacturing for mission-critical parts and components throughout various industries.” Source: RevenueBase Database · checked Sep 29, 2026
11	Onewest Manufacturing Partners	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	201-500	109 contacts →
	Partial evidence “Formerly Westbrook Energy Group, we are now OneWest-a name that reflects our unity and clarity of purpose as a leading manufacturing partner for industries driving global progress.” Source: RevenueBase Database · checked Sep 29, 2026
12	G&h Diversified Manufacturing	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	201-500	91 contacts →
	Partial evidence “G&H Diversified Manufacturing is a U.S-based, ISO 9001:2015 certified advanced contract manufacturer, providing engineered component and assembly solutions to oil and gas and…” Source: RevenueBase Database · checked Sep 29, 2026
13	Novetus	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	83 contacts →
	Partial evidence “Novetus is an engineering company that focuses on Capital Project Engineering, Project Controls, Asset Integrity, Safety & Risk Management, and Process Safety Management…” Source: RevenueBase Database · checked Sep 29, 2026
14	Decon LLC	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	55 contacts →
	Strong evidence “MBE \| SBE \| DBE \| HUB \| HHF, TBPE Firm No 16156 DECON LLC,founded by Fulvio Jaramillo, a consulting engineering firm committed to technical excellence, DECON’s services help…” Source: RevenueBase Database · checked Sep 29, 2026
15	ARC Specialties	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	54 contacts →
	Partial evidence “ARC Specialties designs and builds automated manufacturing systems and custom equipment for joining, cladding, and other applications.” Source: RevenueBase Database · checked Sep 29, 2026
16	MEP Green Design & Build, Pllc	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	53 contacts →
	Partial evidence “MEP Green Design & Build, PLLC,(MEPG) is a full-service engineering firm made up of a dedicated team of professionals offering expertise in Mechanical, Electrical, Plumbing and…” Source: RevenueBase Database · checked Sep 29, 2026
17	Blackline Engineering, LLC	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	46 contacts →
	Strong evidence “Blackline Engineering, LLC is a Houston based engineering consulting firm that offers innovative design and project management services that are tailored for each client.” Source: RevenueBase Database · checked Sep 29, 2026
18	RPT Alliance LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	43 contacts →
	Indirect evidence “As of December 8, 2025, RTP Alliance has been acquired by by Bowman.” Source: RevenueBase Database · checked Sep 29, 2026
19	Allserv	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	43 contacts →
	Partial evidence “At ALLSERV, we help companies reduce inventory costs, improve warehouse operations, and enhance asset availability through expert consulting and data-driven solutions.” Source: RevenueBase Database · checked Sep 29, 2026
20	Interfield Group	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	40 contacts →
	Partial evidence “Interfield is a leading engineering company specializing in engineering services.” Source: RevenueBase Database · checked Sep 29, 2026
21	TKE Engineering & Design	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	39 contacts →
	Indirect evidence “Who We Are TKE was founded in Houston, Texas in 1992 by Terry Eleiott, PE and his wife Kathy Eleiott.” Source: RevenueBase Database · checked Sep 29, 2026
22	Priserve Consulting INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	38 contacts →
	Partial evidence “PriServe Group company engaged in Technology and Engineering Services” Source: RevenueBase Database · checked Sep 29, 2026
23	Kinsmen Group	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	37 contacts →
	Partial evidence “Through a blend of consultancy, process improvements, service delivery, and technology implementation, Kinsmen Group guides digital transformation in process manufacturing across…” Source: RevenueBase Database · checked Sep 29, 2026
24	Spooltech	Partial evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	51-200	37 contacts →
	Partial evidence “For over thirty years, Spooltech has been delivering cost-effective, turn-key, engineering, and metal fabrication solutions.” Source: RevenueBase Database · checked Sep 29, 2026
25	Pinnacle Structural Engineers	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	11-50	33 contacts →
	Strong evidence “Pinnacle is a structural engineering consulting firm providing services on a wide variety of project types, including: commercial, healthcare, workplace, institutional and…” Source: RevenueBase Database · checked Sep 29, 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: engineering and manufacturing consulting 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 engineering and manufacturing consulting firms.
Partial evidence: Its own public description names part of engineering and manufacturing consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering and manufacturing consulting 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 324 engineering and manufacturing consulting firms based in Houston, United States

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Engineering and manufacturing consulting firms based in Houston, United States at a glance

As of Sep 29, 2026

25.1%Verified-email coverage

40.8Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

165

11-50

109

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 324 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 engineering and manufacturing consulting 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 “engineering and manufacturing consulting 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 engineering and manufacturing consulting 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 engineering and manufacturing consulting 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, 3,314 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 29, 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.

Engineering and manufacturing consulting 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 engineering and manufacturing consulting 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 engineering and manufacturing consulting firms are there based in Houston, United States?

RevenueBase identified 324 engineering and manufacturing consulting 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?

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

Which city in the United States has the most engineering and manufacturing consulting firms?

Houston leads the United States with 324 headquartered companies, followed by New York (187) and Chicago (130).

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 3,314 verified decision-maker contacts tracked across these 324 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 29, 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.