Company lists · Data refreshed September 2026

Top 25 Hydro engineering consultants based in Houston, United States

RevenueBase identified 102 company matches for hydro engineering consultants associated with Houston, United States as of September 2026 and tracks 7,327 professional contacts across them, including 4,121 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers company matches for hydro engineering consultants 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 16, 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 16, 2026 How this list was built
102Companies
7,327Contacts tracked
4,121Verified emails
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The 25 largest hydro engineering consultants based in Houston, United States

Ranked by team size
Top 25 of 102 company matches for hydro engineering consultants based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHouston, TX, United StatesHQ recorded Sep 16, 20261,001-5,0001,932 contacts →

Exact match

“Employee-Owned.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Sep 16, 20261,001-5,0001,112 contacts →

Exact match

“Ranked No.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Sep 16, 2026501-1,000683 contacts →

Exact match

“Quiddity is an award-winning, full-service civil engineering, planning, surveying, and consulting firm providing innovative solutions for public infrastructure and private…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Sep 16, 2026501-1,000524 contacts →

Exact match

“Cobb, Fendley & Associates, Inc.(CobbFendley) is a nationally recognized infrastructure solutions firm with a regional focus and a commitment to excellence.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Sep 16, 2026201-500461 contacts →

Exact match

“Lockwood, Andrews & Newnam, Inc.(LAN) is a full-service consulting firm offering planning, engineering and program management services.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Sep 16, 2026201-500260 contacts →

Exact match

“Founded in 1993, Tolunay-Wong Engineers, Inc.(TWE) is ranked as one of the Top 10 largest civil engineering firms in Houston.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Sep 16, 2026201-500247 contacts →

Exact match

“EHRA Engineering is a civil engineering, surveying, low impact developing, land planning, construction phase services, traffic, emergency management and landscape architecture…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-200199 contacts →

Exact match

“Completing public infrastructure projects comes with tremendous pressure to serve the public while completing each project on-time and on-budget.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-200182 contacts →

Exact match

“Founded in 1970, IDS Engineering Group is a Houston-based civil engineering and surveying firm with over five decades of experience delivering infrastructure solutions for public…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-200111 contacts →

Exact match

“RG Miller | DCCM is a Houston-based civil engineering firm providing a wide range of infrastructure services to both public and private sector clients in Texas.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-20097 contacts →

Exact match

“S&B Infrastructure, Ltd.(S & BI) has been in existence since 1994 as part of S&B Holdings, Ltd,(one of the largest privately-owned engineering firms in the State of Texas).”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-20079 contacts →

Exact match

“Founded in 1984, OMEGA is an engineering and construction management firm specializing in infrastructure, civil engineering, highway engineering, transportation planning, railway…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-20079 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 · Sep 16, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202611-5066 contacts →

Exact match

“Sowells Consulting Engineers (SCE), established in 2010, is a professional services consulting firm specializing in leading project teams and providing quality control during the…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-20065 contacts →

Exact match

“Civitas Engineering Group Inc.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-20064 contacts →

Exact match

“Infrastructure Consulting & Engineering, LLC (formerly IDCUS Inc.), is a leading Texas-based professional services, civil engineering, and consulting firm specializing in public…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202611-5059 contacts →

Exact match

“Odyssey Engineering Group is a Houston based civil engineering consulting firm.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202611-5055 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 16, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-20051 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 16, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-20047 contacts →

Exact match

“RAVA is a Houston, TX based construction and consulting firm specializing in construction projects including commercial buildings and waterworks facilities.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202611-5046 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 16, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202611-5035 contacts →

Exact match

“Vogler & Spencer Engineering provides civil engineering consulting services to public and private clients in the Houston area and surrounding counties.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-20031 contacts →

Exact match

“Gunda Corporation (GUNDA) is a Houston-based consulting firm that provides planning, engineering and management services in all aspects of engineering, including traffic &…”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202611-5031 contacts →

Exact match

“Aurora Technical Services, LLC is a Houston-based civil engineering consulting firm that provides engineering expertise focused on water and wastewater pipelines.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25Exact matchHouston, TX, United StatesHQ recorded Sep 16, 202651-20026 contacts →

Exact match

“United Engineers Inc.(UEI) is a Houston-based, full service consulting civil engineering and surveying firm providing services in the Houston and surrounding areas.”

Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase

Showing 25 of 102 hydro engineering consultants based in Houston, United States

See the full list, filter by size, metro and specialty, and access 4,121 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydro engineering consultants based in Houston, United States at a glance

As of Sep 16, 2026
56.2%Verified-email coverage
71.8Average contacts per company
11-50Median size (employees)
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
37
11-50
37
51-200
20
201-500
3
501-1,000
3
1,001-5,000
2

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 102 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 “hydro engineering consultants” 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 4,121 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 16, 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.

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

How many hydro engineering consultants are there based in Houston, United States?

RevenueBase identified 102 company matches for hydro engineering consultants 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?

LJA 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 hydro engineering consultants?

Houston leads the United States with 102 company records, followed by New York (53) and Austin (45).

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 4,121 professional contacts with verified work emails tracked across these 102 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 16, 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.