Company lists · Data refreshed September 2026

Top 25 Consulting firms based in Houston, United States

RevenueBase identified 1,563 consulting firms headquartered in Houston, United States as of September 2026 and tracks 19,677 professional contacts across them, including 7,431 with verified work emails and 6,982 with mobile numbers. New York is the largest hub.

This list covers 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 8, 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 8, 2026 86% judged on-target in blind review
1,563Companies
19,677Contacts tracked
7,431Verified emails
6,982Mobile numbers
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The 25 largest consulting firms based in Houston, United States

Ranked by team size
Top 25 of 1,563 consulting firms based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 8, 2026. RevenueBase Smart Search rates how each company's information relates to 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 20261,001-5,0001,932 contacts →

Indirect evidence

“Employee-Owned.”

Source: RevenueBase Database · checked Sep 8, 2026
2Strong evidenceHouston, TX, United StatesHQ checked Sep 8, 20261,001-5,0001,595 contacts →

Strong evidence

“alliant is the nation's premier consulting and management engineering firm.”

Source: RevenueBase Database · checked Sep 8, 2026
3Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 20261,001-5,0001,184 contacts →

Indirect evidence

“Consultants.”

Source: RevenueBase Database · checked Sep 8, 2026
4Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 20261,001-5,0001,112 contacts →

Indirect evidence

“Ranked No.”

Source: RevenueBase Database · checked Sep 8, 2026
5Strong evidenceHouston, TX, United StatesHQ checked Sep 8, 2026501-1,000525 contacts →

Strong evidence

“Arthur Lawrence is a global management and technology consulting firm with expertise in talent acquisition, business process outsourcing (BPO) and consulting.”

Source: RevenueBase Database · checked Sep 8, 2026
6Strong evidenceHouston, TX, United StatesHQ checked Sep 8, 2026201-500461 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 8, 2026
7Strong evidenceHouston, TX, United StatesHQ checked Sep 8, 2026201-500329 contacts →

Strong evidence

“SiRA Consulting is a Certified MBE consulting company that was founded in 2012.”

Source: RevenueBase Database · checked Sep 8, 2026
8Strong evidenceHouston, TX, United StatesHQ checked Sep 8, 202651-200303 contacts →

Strong evidence

“Koya Consulting Inc, follows its own set of processes, methodologies, and disciplines in order to provide high-quality services.”

Source: RevenueBase Database · checked Sep 8, 2026
9Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 202651-200245 contacts →

Indirect evidence

“New Tech Global (NTG) is comprised of 5 different business units: New Tech Global Ventures: Upstream Oil & Gas consultancy services, and W-2 professional placement services for…”

Source: RevenueBase Database · checked Sep 8, 2026
10Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 2026201-500231 contacts →

Indirect evidence

“eTeam Sirius Solutions L.L.C.”

Source: RevenueBase Database · checked Sep 8, 2026
11Strong evidenceHouston, TX, United StatesHQ checked Sep 8, 202651-200205 contacts →

Strong evidence

“Stellium is a specialized management consulting firm committed to designing and delivering solutions that improve businesses worldwide.”

Source: RevenueBase Database · checked Sep 8, 2026
12Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 202651-200198 contacts →

Indirect evidence

“Calvetti Ferguson is one of the largest independent CPA firms in the United States.”

Source: RevenueBase Database · checked Sep 8, 2026
13Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 2026501-1,000176 contacts →

Indirect evidence

“Core Group Resources connects businesses in various industries and helps them find the right personnel.”

Source: RevenueBase Database · checked Sep 8, 2026
14Strong evidenceHouston, TX, United StatesHQ checked Sep 8, 202651-200160 contacts →

Strong evidence

“ECOM is an information technology consulting firm who is a respected leader in providing innovative service and solutions for Fortune companies.”

Source: RevenueBase Database · checked Sep 8, 2026
15Strong evidenceHouston, TX, United StatesHQ checked Sep 8, 2026201-500126 contacts →

Strong evidence

“GSD Solutions is a consulting and co-sourcing partner built for companies that need more capability - not more overhead.”

Source: RevenueBase Database · checked Sep 8, 2026
16Strong evidenceHouston, TX, United StatesHQ checked Sep 8, 202651-200125 contacts →

Strong evidence

“MaloneBailey is a full service, PCAOB-registered CPA firm that provides audit, tax and consulting services to companies both publicly-traded and privately-held.”

Source: RevenueBase Database · checked Sep 8, 2026
17Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 202651-200124 contacts →

Indirect evidence

“The Fulcrum team of technologists are recognized experts in the fields of IT Infrastructure Technology, Security, Service Management and Support.”

Source: RevenueBase Database · checked Sep 8, 2026
18Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 202651-200121 contacts →

Indirect evidence

“We are motivated to support our public sector clients to accelerate positive outcomes for America’s students, workers, and communities.”

Source: RevenueBase Database · checked Sep 8, 2026
19Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 2026501-1,000115 contacts →

Indirect evidence

“Bedrock Petroleum Consultants was formed in 2011 with the goal of providing the highest level of quality service to both our consultants and operator clients.”

Source: RevenueBase Database · checked Sep 8, 2026
20Strong evidenceHouston, TX, United StatesHQ checked Sep 8, 202651-200101 contacts →

Strong evidence

“We are a modern consulting firm that partners with organizations to align strategy, people, and technology to maximize enterprise value.”

Source: RevenueBase Database · checked Sep 8, 2026
21Strong evidenceHouston, TX, United StatesHQ checked Sep 8, 202651-20096 contacts →

Strong evidence

“The Lab is a management consulting firm that helps executive project sponsors realize sustainable and transformative process and financial benefits for their businesses by…”

Source: RevenueBase Database · checked Sep 8, 2026
22Strong evidenceHouston, TX, United StatesHQ checked Sep 8, 202651-20095 contacts →

Strong evidence

“QADWorks is a Texas based IT consulting company founded in 2019.”

Source: RevenueBase Database · checked Sep 8, 2026
23Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 2026201-50093 contacts →

Indirect evidence

“WHAT'S YOUR ENDEAVOR?”

Source: RevenueBase Database · checked Sep 8, 2026
24Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 2026n/a90 contacts →

Indirect evidence

“A company that provides business services.”

Source: RevenueBase Database · checked Sep 8, 2026
25Indirect evidenceHouston, TX, United StatesHQ checked Sep 8, 202651-20086 contacts →

Indirect evidence

“Expressworks is a management consultancy dedicated to helping organizations achieve their desired outcomes.”

Source: RevenueBase Database · checked Sep 8, 2026

Showing 25 of 1,563 consulting firms based in Houston, United States

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Consulting firms based in Houston, United States at a glance

As of Sep 8, 2026
37.8%Verified-email coverage
35.5%Mobile-number coverage
12.6Average contacts per company
1-10Median size (employees)
241.1%Largest-city concentration · New York
Sep 8, 2026Page data refreshed

Companies by employee count

1-10
1,108
11-50
332
51-200
92
201-500
14
501-1,000
5
1,001-5,000
10
5,001-10,000
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 10.0d

Company record updated

Median 70.0d

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 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 “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 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 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, 7,431 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 8, 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.

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 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 consulting firms are there based in Houston, United States?

RevenueBase identified 1,563 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?

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

Which city has the most consulting firms?

New York leads with 3769 headquartered companies, followed by Chicago (1869) and Atlanta (1817).

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 7,431 verified decision-maker contacts tracked across these 1,563 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 8, 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.