Company lists · Data refreshed November 2026

Top 25 Refining consultants based in the United States

RevenueBase identified 1,429 company matches for refining consultants associated with the United States as of November 2026 and tracks 29,071 professional contacts across them, including 8,371 with verified work emails. Houston is the largest hub.

This list covers company matches for refining consultants 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 November 6, 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 Nov 6, 2026 How this list was built
1,429Companies
29,071Contacts tracked
8,371Verified emails
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The 25 largest refining consultants based in the United States

Ranked by team size
Top 25 of 1,429 company matches for refining consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchSan Antonio, TX, United StatesHQ recorded Nov 6, 20265,001-10,0001,946 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMetairie, LA, United StatesHQ recorded Nov 6, 2026501-1,000750 contacts →

Exact match

“EDG Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLongview, TX, United StatesHQ recorded Nov 6, 2026501-1,000611 contacts →

Exact match

“Since 1991, Applied Consultants Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026501-1,000559 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchLiberty Corner, NJ, United StatesHQ recorded Nov 6, 2026501-1,000542 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBaytown, TX, United StatesHQ recorded Nov 6, 20261,001-5,000502 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 · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20261,001-5,000454 contacts →

Exact match

“Ketjen is a provider of advanced catalyst solutions to leading producers in the petrochemical and refining industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLa Porte, TX, United StatesHQ recorded Nov 6, 20265,001-10,000447 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchSulphur, LA, United StatesHQ recorded Nov 6, 2026501-1,000424 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLouisville, TX, United StatesHQ recorded Nov 6, 2026201-500333 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchDeer Park, TX, United StatesHQ recorded Nov 6, 2026201-500322 contacts →

Exact match

“KAP Project Services is a leading project management and consulting firm serving the petrochemical, power, LNG, pharmaceutical, and oil & gas industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchDuluth, MN, United StatesHQ recorded Nov 6, 2026201-500298 contacts →

Exact match

“We act as an extension of your team, combining deep energy expertise with seamless alignment to your processes to advance projects with confidence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSpring, TX, United StatesHQ recorded Nov 6, 2026201-500275 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 · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCut Off, LA, United StatesHQ recorded Nov 6, 2026201-500274 contacts →

Exact match

“Founded as C&D Wireline in 1968, with C&D Production Specialist joining the business in 1993, today Crosby Energy Services is a certified Women’s Business Enterprise National…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchMason, IL, United StatesHQ recorded Nov 6, 2026201-500252 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 · Nov 6, 2026 · View company records in RevenueBase
16Exact matchIrvine, CA, United StatesHQ recorded Nov 6, 2026n/a239 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 · Nov 6, 2026 · View company records in RevenueBase
17Exact matchDes Moines, IA, United StatesHQ recorded Nov 6, 2026201-500222 contacts →

Exact match

“With over five decades of proven experience, Seneca Companies prides itself in being a full-service provider of petroleum storage and dispensing systems, environmental consulting…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500213 contacts →

Exact match

“Vertex is a leading specialty refiner of base oils and conventional fuels.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMetairie, TX, United StatesHQ recorded Nov 6, 2026201-500197 contacts →

Exact match

“Project Consulting Services®, Inc.(PCS) provides consulting and engineering expertise to the energy infrastructure industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchHouston, OK, United StatesHQ recorded Nov 6, 202651-200197 contacts →

Exact match

“EAG is a Houston-based, privately held consulting, back-office outsourcing, and IT outsourcing firm that delivers products and services primarily to the upstream and midstream oil…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMetairie, TX, United StatesHQ recorded Nov 6, 2026201-500197 contacts →

Exact match

“Engineering & Inspection Services (EIS) is a multidisciplinary engineering firm offering Engineering & Design, Field Services, Inspection & Mechanical Integrity, and Technology…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 2026201-500195 contacts →

Exact match

“Utilicast is more than just a consulting company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchOregon, OH, United StatesHQ recorded Nov 6, 2026501-1,000182 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBaton Rouge, LA, United StatesHQ recorded Nov 6, 202651-200159 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 · Nov 6, 2026 · View company records in RevenueBase
25Exact matchDallas, TX, United StatesHQ recorded Nov 6, 202651-200145 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 · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,429 refining consultants based in the United States

See the full list, filter by size, metro and specialty, and access 8,371 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Refining consultants based in the United States at a glance

As of Nov 6, 2026
28.8%Verified-email coverage
20.3Average contacts per company
1-10Median size (employees)
21.8%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
772
11-50
421
51-200
162
201-500
44
501-1,000
14
1,001-5,000
10
5,001-10,000
2
10001+
1

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 1,429 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 “refining 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 8,371 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 November 6, 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 “refining consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many refining consultants are there based in the United States?

RevenueBase identified 1,429 company matches for refining consultants associated with the United States as of November 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?

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

Which city has the most refining consultants?

Houston leads with 312 company records, followed by Denver (34) and The Woodlands (25).

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 8,371 professional contacts with verified work emails tracked across these 1,429 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 November 6, 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.