Company lists · Data refreshed September 2026

Top 25 Mechanical engineering consulting firms based in Houston, United States

Name: Mechanical engineering 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 21, 2026 193 companies tracked

RevenueBase identified 193 company matches for mechanical engineering consulting firms associated with Houston, United States as of September 2026 and tracks 4,857 professional contacts across them, including 904 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers company matches for mechanical engineering consulting firms 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 September 21, 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 Sep 21, 2026 How this list was built

193Companies

4,857Contacts tracked

904Verified emails

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

Ranked by team size

Top 25 of 193 company matches for mechanical engineering consulting firms based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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	DBR	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	201-500	227 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Shah Smith & Associates, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	51-200	134 contacts →
	Exact match “Shah Smith & Associates, Inc.(SSA) is a 120+ employee Mechanical, Electrical, and Plumbing (MEP) consulting engineering firm with offices in Houston, Austin & Dallas.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Letsos Company	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	201-500	115 contacts →
	Exact match “In 1953, James N.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Dally Associates	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	57 contacts →
	Exact match “Founded in 1993, Dally + Associates, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Decon LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	55 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	MEP Green Design & Build, Pllc	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	51-200	53 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	JDM Group Company, LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	51-200	51 contacts →
	Exact match “Since 2008… JDM Group Company has been providing consulting and construction services for both public and private sector clients in a cost effective, timely, and innovative manner.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Blackline Engineering, LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	46 contacts →
	Exact match “Blackline Engineering, LLC is a Houston based engineering consulting firm that offers innovative design and project management services that are tailored for each client.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	I. A. Naman Associates, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	46 contacts →
	Exact match “Since 1947, I.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	RPT Alliance LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	43 contacts →
	Exact match “As of December 8, 2025, RTP Alliance has been acquired by by Bowman.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Interfield Group	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	40 contacts →
	Exact match “Interfield is a leading engineering company specializing in engineering services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Johnston	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	40 contacts →
	Exact match “Founded in 2001, Johnston is a multi-talented firm based in Houston, Texas that provides architecture, MEP engineering and planning professional design services that span all…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	TKE Engineering & Design	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	39 contacts →
	Exact match “Who We Are TKE was founded in Houston, Texas in 1992 by Terry Eleiott, PE and his wife Kathy Eleiott.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Pinnacle Structural Engineers	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	33 contacts →
	Exact match “Pinnacle is a structural engineering consulting firm providing services on a wide variety of project types, including: commercial, healthcare, workplace, institutional and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Midstream & Terminal Services LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	31 contacts →
	Exact match “Midstream & Terminal Services (MTS) is a privately-owned registered architectural and engineering company that serves a diverse set of industries.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Collaborative Engineering Group	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	26 contacts →
	Exact match “At Collaborative Engineering Group, we believe the best solutions come from working together.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	E&c Engineers	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	26 contacts →
	Exact match “E&C Engineers & Consultants Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	EMC Services INC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	25 contacts →
	Exact match “EMC Services, Inc, established in 1980, is your One Solution Engineering, Management and Construction Contractor; we have the knowledge and the experience to customize a solution…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Matrix Structural Engineers	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	24 contacts →
	Exact match “Matrix Structural Engineers, a multiple award-winning firm, was founded in 1993 in Houston.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	CFI Companies, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	21 contacts →
	Exact match “Established in 2012, CFI Companies is a consulting engineering firm that provides mechanical, electrical, plumbing and low voltage engineering design services as well as…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Calcgen Solutions	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	21 contacts →
	Exact match “Calcgen Solutions believes in quality engineering service delivery to our clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Ascent Engineering INC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	20 contacts →
	Exact match “Ascent Engineering, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	Concept Engineers, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	20 contacts →
	Exact match “Concept Engineers is committed to delivering a higher quality of structural engineering to its clients, gleaned from decades of experience in commercial and residential…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	N&a Engineering Solutions, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	201-500	19 contacts →
	Exact match “N&A USA Engineering Solutions, Inc was founded in 2015 and is a specialized in multidisciplinary engineering & project management for medium & large-sized projects, working across…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	LEE Truong & YU Engineers, Pllc LTY Engineers	Exact match	Houston, TX, United StatesHQ recorded Sep 21, 2026	11-50	18 contacts →
	Exact match “Lee Truong & Yu Engineers, PLLC, is a full-service Mechanical, Electrical and Plumbing engineering consulting firm with offices in Dallas and Houston.” Recorded in the RevenueBase company graph · Sep 21, 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 “mechanical engineering consulting firms”. 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 25 of 193 mechanical engineering consulting firms based in Houston, United States

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Mechanical engineering consulting firms based in Houston, United States at a glance

As of Sep 21, 2026

18.6%Verified-email coverage

25.2Average contacts per company

11-50Median size (employees)

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 193 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 “mechanical engineering consulting firms” 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 904 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 September 21, 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.

Mechanical engineering consulting firms 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 “mechanical engineering consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mechanical engineering consulting firms are there based in Houston, United States?

RevenueBase identified 193 company matches for mechanical engineering consulting firms associated with Houston, United States as of September 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?

DBR 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 mechanical engineering consulting firms?

Houston leads the United States with 193 company records, followed by New York (159) and Austin (86).

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 904 professional contacts with verified work emails tracked across these 193 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 September 21, 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 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.