Company lists · Data refreshed September 2026

Top 25 Refinery consulting firms based in the United States

RevenueBase identified 912 company matches for refinery consulting firms associated with the United States as of September 2026 and tracks 21,654 professional contacts across them, including 5,679 with verified work emails. Houston is the largest hub.

This list covers company matches for refinery consulting firms associated with the 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 29, 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 29, 2026 How this list was built
912Companies
21,654Contacts tracked
5,679Verified emails
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The 25 largest refinery consulting firms based in the United States

Ranked by team size
Top 25 of 912 company matches for refinery consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 29, 20261,001-5,0004,396 contacts →

Exact match

“CITGO Petroleum Corporation is a recognized leader in the refining industry and operates under the well-known CITGO brand.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchSan Antonio, TX, United StatesHQ recorded Sep 29, 20265,001-10,0001,795 contacts →

Exact match

“Tesoro has acquired Western Refining and adopted a new name, Andeavor.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchSan Antonio, TX, United StatesHQ recorded Sep 29, 202610001+707 contacts →

Exact match

“Tesoro acquired Western Refining and adopted a new name, Andeavor.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchMetairie, LA, United StatesHQ recorded Sep 29, 2026501-1,000700 contacts →

Exact match

“EDG Inc.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchLongview, TX, United StatesHQ recorded Sep 29, 2026501-1,000578 contacts →

Exact match

“Since 1991, Applied Consultants Inc.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchLiberty Corner, NJ, United StatesHQ recorded Sep 29, 2026501-1,000545 contacts →

Exact match

“Becht partners with industrial operators across the energy and process sectors to solve complex challenges that impact safety, reliability, and profitability.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Sep 29, 2026501-1,000532 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 · Sep 29, 2026 · View company records in RevenueBase
8Exact matchBaytown, TX, United StatesHQ recorded Sep 29, 20261,001-5,000475 contacts →

Exact match

“Turn2 Specialty Companies is the premier provider of specialty turnaround services in the refining, petrochemical, and power industries.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchSulphur, LA, United StatesHQ recorded Sep 29, 2026501-1,000420 contacts →

Exact match

“ReCon was established in 1995 and has matured as a high quality and competitive engineering consulting firm providing engineering design and project management services to the…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchLa Porte, TX, United StatesHQ recorded Sep 29, 20265,001-10,000419 contacts →

Exact match

“As part of the Quanta Services Family of Companies (NYSE: PWR)- Stronghold provides the safest, leanest, most efficient, quality solutions for the refinery, petrochemical and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchLouisville, KY, United StatesHQ recorded Sep 29, 2026201-500313 contacts →

Exact match

“Chemical & Industrial Engineering, Inc.(C&I) is a full-service Engineering, Design & Procurement firm, providing hands-on design expertise for increasing capacity, improving…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchLa Porte, TX, United StatesHQ recorded Sep 29, 2026201-500275 contacts →

Exact match

“AltairStrickland is a specialty mechanical contracting company serving the refining, petrochemical, power and fertilizer industries.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchSpring, TX, United StatesHQ recorded Sep 29, 2026201-500253 contacts →

Exact match

“For more than 40 years, M&H has been a trusted source for oil & gas consulting services that maximize value for clients.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchMason, OH, United StatesHQ recorded Sep 29, 2026201-500247 contacts →

Exact match

“BSI Engineering is a full-service engineering consulting firm dedicated to delivering innovative, efficient, and effective solutions across various industries.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchIrvine, CA, United StatesHQ recorded Sep 29, 2026n/a233 contacts →

Exact match

“Chemical Engineering Partners (CEP) is a world leader in used oil re-refining designs and process technology.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchBaton Rouge, United StatesHQ recorded Sep 29, 202651-200186 contacts →

Exact match

“Sigma Engineers and Constructors (SEC) is a professional engineering firm that provides specifically tailored services to meet the needs of North America's oil, gas, and…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchOregon, OH, United StatesHQ recorded Sep 29, 2026501-1,000167 contacts →

Exact match

“The Toledo refinery has a throughput capacity of approximately bpd and a Nelson complexity rating of 9.2.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchBaton Rouge, LA, United StatesHQ recorded Sep 29, 202651-200151 contacts →

Exact match

“GRSA is a full service professional engineering company providing process and detailed engineering services for a broad range of upstream, midstream, and downstream petrochemical…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchClinton, MS, United StatesHQ recorded Sep 29, 2026201-500139 contacts →

Exact match

“E3 Environmental sets a high standard for environmental and industrial services, prioritizing safety, urgency, and efficiency.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchPlano, TX, United StatesHQ recorded Sep 29, 202651-200134 contacts →

Exact match

“PetroTel is recognized worldwide as an industry leader in enhanced oil recovery, reservoir characterization and simulation, coalbed methane, production, and exploration…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchDallas, TX, United StatesHQ recorded Sep 29, 202651-200128 contacts →

Exact match

“Merit Advisors provides our partners in the energy industry with the best financial solutions and vision to uncover overlooked savings.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchTyler, TX, United StatesHQ recorded Sep 29, 202651-200122 contacts →

Exact match

“Welcome to SDS Petroleum Consultants company page In Scott Stovall founded SDS Petroleum Consultants L.L.C.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchCentennial, CO, United StatesHQ recorded Sep 29, 202651-200121 contacts →

Exact match

“Halker Consulting provides custom engineered and configured services in Project Assessment and Planning, Engineering and Design, & Consulting and Implementation Guidance.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Sep 29, 202651-200116 contacts →

Exact match

“Edge Engineering & Science, LLC (EDGE) is a privately owned professional services firm headquartered in Houston, Texas.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchHouston, TX, United StatesHQ recorded Sep 29, 202651-200109 contacts →

Exact match

“Ryder Scott Company, L.P.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 912 refinery consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 5,679 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Refinery consulting firms based in the United States at a glance

As of Sep 29, 2026
26.2%Verified-email coverage
23.7Average contacts per company
1-10Median size (employees)
21.1%Largest-city concentration · Houston
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
536
11-50
240
51-200
86
201-500
25
501-1,000
15
1,001-5,000
6
5,001-10,000
2
10001+
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 912 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 the United States whose business descriptions match “refinery 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 5,679 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 29, 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.

Refinery consulting firms by metro

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

How many refinery consulting firms are there based in the United States?

RevenueBase identified 912 company matches for refinery consulting firms associated with the 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?

CITGO tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most refinery consulting firms?

Houston leads with 192 company records, followed by Denver (18) and San Antonio (16).

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 5,679 professional contacts with verified work emails tracked across these 912 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 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 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.