Company lists · Data refreshed September 2026
Top 12 Petroleum refinery engineers based in the United States
RevenueBase identified 31 company matches for petroleum refinery engineers associated with the United States as of September 2026 and tracks 1,551 professional contacts across them, including 478 with verified work emails. Houston is the largest hub.
This list covers company matches for petroleum refinery engineers 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 20, 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.
The 12 largest petroleum refinery engineers based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 419 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 20, 2026 · View company records in RevenueBase | |||||
| 2 | 233 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 20, 2026 · View company records in RevenueBase | |||||
| 3 | 167 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 20, 2026 · View company records in RevenueBase | |||||
| 4 | 150 contacts → | ||||
Exact match “Semi-complex crude oil refinery in Port Allen, Louisiana, across the river from Baton Rouge.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 55 contacts → | ||||
Exact match “Trecora operates a facility that specializes in high purity hydrocarbons and other petrochemical manufacturing.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 43 contacts → | ||||
Exact match “Coking.com operates as an independent voice in the oil industry focusing on safety, profitability, and driving the overall well-being of refineries to new levels.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 11 contacts → | ||||
Exact match “Oil & Energy” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 8 contacts → | ||||
Exact match “RARE PETRO has a mission to MODERNIZE THE OILFIELD by leveraging modern technology while providing Petroleum Engineering Consulting along with Outsourcing services for data entry.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 3 contacts → | ||||
Exact match “Process Consulting Services provides grassroots and revamp front-end process engineering to the refinery industry worldwide.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 1 contacts → | ||||
Exact match “Genesee Valley Engineering, PLLC provides expertise to the petroleum industry through specialized knowledge of state and federal regulations which govern the industry.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 1 contacts → | ||||
Exact match “Yeager Engineered Systems (YES) has been consulting engineers and manufacturer’s representatives in the Petroleum Industry since 1994.” Recorded in the RevenueBase company graph · Sep 20, 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 “petroleum refinery engineers”. 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 12 of 31 petroleum refinery engineers based in the United States
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Petroleum refinery engineers based in the United States at a glance
As of Sep 20, 2026Companies by employee count
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 31 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 “petroleum refinery engineers” 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 478 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 20, 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 “petroleum refinery engineers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many petroleum refinery engineers are there based in the United States?
RevenueBase identified 31 company matches for petroleum refinery engineers 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?
The Stronghold Companies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most petroleum refinery engineers?
Houston leads with 6 company records, followed by Oregon (2) and Anchorage (1).
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 478 professional contacts with verified work emails tracked across these 31 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 31 petroleum refinery engineers based in the United States. Start with a free account, no credit card.
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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.
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Company intelligence · public preview
Top 12 petroleum refinery engineers based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 31 matching company records for petroleum refinery engineers based in the United States, with 1,551 tracked contacts and 478 verified work emails.
This public preview shows 12 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 12 petroleum refinery engineers based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  The Stronghold Companiesthestrongholdcompanies.comHQ: La Porte, TX, United StatesReported employees: 5,001-10,000 | La Porte, TX, United States | 5,001-10,000 | Exact match | 419 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Chemical Engineering Partnersceptechnology.com HQ: Irvine, CA, United StatesReported employees: Not recorded | Irvine, CA, United States | Not recorded | Exact match | 233 contacts → |
“Chemical Engineering Partners (CEP) is a world leader in used oil re-refining designs and process technology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Toledo Refining Company LLCpbfenergy.com HQ: Oregon, OH, United StatesReported employees: 501-1,000 | Oregon, OH, United States | 501-1,000 | Exact match | 167 contacts → |
“The Toledo refinery has a throughput capacity of approximately bpd and a Nelson complexity rating of 9.2.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Placid Refining Company LLCplacidrefining.com HQ: Port Allen, LA, United StatesReported employees: 201-500 | Port Allen, LA, United States | 201-500 | Exact match | 150 contacts → |
“Semi-complex crude oil refinery in Port Allen, Louisiana, across the river from Baton Rouge.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Trecora Hydrocarbonstrecora.com HQ: Silsbee, TX, United StatesReported employees: 51-200 | Silsbee, TX, United States | 51-200 | Exact match | 55 contacts → |
“Trecora operates a facility that specializes in high purity hydrocarbons and other petrochemical manufacturing.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Coking.com INCcoking.com HQ: Bellingham, WA, United StatesReported employees: Not recorded | Bellingham, WA, United States | Not recorded | Exact match | 43 contacts → |
“Coking.com operates as an independent voice in the oil industry focusing on safety, profitability, and driving the overall well-being of refineries to new levels.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Motiva Enterprises LLCmotiva.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 11 contacts → |
“Oil & Energy” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Rare Petrorarepetro.comHQ: Golden, CO, United StatesReported employees: 11-50 | Golden, CO, United States | 11-50 | Exact match | 8 contacts → |
“RARE PETRO has a mission to MODERNIZE THE OILFIELD by leveraging modern technology while providing Petroleum Engineering Consulting along with Outsourcing services for data entry.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Process Consulting Servicesrevamps.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 3 contacts → |
“Process Consulting Services provides grassroots and revamp front-end process engineering to the refinery industry worldwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  AMT International, INCamtintl.comHQ: Plano, TX, United StatesReported employees: 1-10 | Plano, TX, United States | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 | Genesee Valley Engineering, Pllcgeneseevalleyengineering.com HQ: Scottsville, NY, United StatesReported employees: 1-10 | Scottsville, NY, United States | 1-10 | Exact match | 1 contacts → |
“Genesee Valley Engineering, PLLC provides expertise to the petroleum industry through specialized knowledge of state and federal regulations which govern the industry.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Yeager Engineered Systemstrustedvendor.com HQ: Willingboro, RI, United StatesReported employees: 1-10 | Willingboro, RI, United States | 1-10 | Exact match | 1 contacts → |
“Yeager Engineered Systems (YES) has been consulting engineers and manufacturer’s representatives in the Petroleum Industry since 1994.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 12 of 31 company matches
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Petroleum refinery engineers: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
31 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 31 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for petroleum refinery engineers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many petroleum refinery engineers did RevenueBase find based in the United States?
The saved snapshot records 31 matching company records, 1,551 tracked contacts and 478 verified emails. The public preview displays 12 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 12 petroleum refinery engineers based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/petroleum-refinery-engineers/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
- Real estate companies based in the United States
Company intelligence · public preview
Top 12 petroleum refinery engineers based in the United States
RevenueBase records 31 matching company records for petroleum refinery engineers based in the United States, with 1,551 tracked contacts and 478 verified work emails.
This public preview shows 12 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 12 petroleum refinery engineers based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | The Stronghold Companiesthestrongholdcompanies.com HQ: La Porte, TX, United StatesReported employees: 5,001-10,000 | La Porte, TX, United States | 5,001-10,000 | Exact match | 419 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Chemical Engineering Partnersceptechnology.com HQ: Irvine, CA, United StatesReported employees: Not recorded | Irvine, CA, United States | Not recorded | Exact match | 233 contacts → |
“Chemical Engineering Partners (CEP) is a world leader in used oil re-refining designs and process technology.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Toledo Refining Company LLCpbfenergy.com HQ: Oregon, OH, United StatesReported employees: 501-1,000 | Oregon, OH, United States | 501-1,000 | Exact match | 167 contacts → |
“The Toledo refinery has a throughput capacity of approximately bpd and a Nelson complexity rating of 9.2.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Placid Refining Company LLCplacidrefining.com HQ: Port Allen, LA, United StatesReported employees: 201-500 | Port Allen, LA, United States | 201-500 | Exact match | 150 contacts → |
“Semi-complex crude oil refinery in Port Allen, Louisiana, across the river from Baton Rouge.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Trecora Hydrocarbonstrecora.com HQ: Silsbee, TX, United StatesReported employees: 51-200 | Silsbee, TX, United States | 51-200 | Exact match | 55 contacts → |
“Trecora operates a facility that specializes in high purity hydrocarbons and other petrochemical manufacturing.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Coking.com INCcoking.com HQ: Bellingham, WA, United StatesReported employees: Not recorded | Bellingham, WA, United States | Not recorded | Exact match | 43 contacts → |
“Coking.com operates as an independent voice in the oil industry focusing on safety, profitability, and driving the overall well-being of refineries to new levels.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Motiva Enterprises LLCmotiva.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 11 contacts → |
“Oil & Energy” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Rare Petrorarepetro.com HQ: Golden, CO, United StatesReported employees: 11-50 | Golden, CO, United States | 11-50 | Exact match | 8 contacts → |
“RARE PETRO has a mission to MODERNIZE THE OILFIELD by leveraging modern technology while providing Petroleum Engineering Consulting along with Outsourcing services for data entry.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Process Consulting Servicesrevamps.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 3 contacts → |
“Process Consulting Services provides grassroots and revamp front-end process engineering to the refinery industry worldwide.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | AMT International, INCamtintl.com HQ: Plano, TX, United StatesReported employees: 1-10 | Plano, TX, United States | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 | Genesee Valley Engineering, Pllcgeneseevalleyengineering.com HQ: Scottsville, NY, United StatesReported employees: 1-10 | Scottsville, NY, United States | 1-10 | Exact match | 1 contacts → |
“Genesee Valley Engineering, PLLC provides expertise to the petroleum industry through specialized knowledge of state and federal regulations which govern the industry.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Yeager Engineered Systemstrustedvendor.com HQ: Willingboro, RI, United StatesReported employees: 1-10 | Willingboro, RI, United States | 1-10 | Exact match | 1 contacts → |
“Yeager Engineered Systems (YES) has been consulting engineers and manufacturer’s representatives in the Petroleum Industry since 1994.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 12 of 31 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Petroleum refinery engineers: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
31 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 31 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for petroleum refinery engineers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many petroleum refinery engineers did RevenueBase find based in the United States?
The saved snapshot records 31 matching company records, 1,551 tracked contacts and 478 verified emails. The public preview displays 12 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 12 petroleum refinery engineers based in the United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/petroleum-refinery-engineers/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
- Real estate companies based in the United States