Company lists · Data refreshed October 2026
Top 21 Downstream refining contractors based in Tulsa, United States
RevenueBase identified 30 company matches for downstream refining contractors associated with Tulsa, United States as of October 2026 and tracks 2,443 professional contacts across them, including 589 with verified work emails. Across the United States, Houston is the largest hub for this category (214 companies); Tulsa follows with 30.
This list covers company matches for downstream refining contractors associated with Tulsa, 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 October 11, 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 21 largest downstream refining contractors based in Tulsa, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 809 contacts → | ||||
Exact match “Matrix Service Company (Nasdaq: MTRX) is a leading specialty engineering and construction company whose commitment to safety, quality, and integrity has earned its subsidiaries a…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 2 | 518 contacts → | ||||
Exact match “Matrix Service is a subsidiary of Matrix Service Company (NASDAQ: MTRX).” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 3 | 168 contacts → | ||||
Exact match “Matrix PDM Engineering, a subsidiary of Matrix Service Company (Nasdaq: MTRX) provides multi-disciplinary engineering, procurement and construction management services to the…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 4 | 109 contacts → | ||||
Exact match “JCL is a full service firm specializing in proactive solutions for safety, risk and material coordination services in the oil and gas, upstream, downstream, petrochemical and…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 5 | 107 contacts → | ||||
Exact match “Select Engineering, Inc, is a privately-held company with offices in Tulsa,OK and Houston,TX.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 6 | 100 contacts → | ||||
Exact match “Integrated Service Company, LLC, is a trusted leading company in the Refining and Petrochemical industry, and we deliver efficiency and quality in all of our services: Field…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 7 | 54 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 8 | 51 contacts → | ||||
Exact match “Since 2013, Quest EPC has been constructing and servicing midstream and upstream facilities with our dedicated team of industry best technical resources.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 9 | 32 contacts → | ||||
Exact match “QPS Flint Construction (Flint) takes pride in a successful history constructing oil facilities, gas facilities and civil construction projects since 1957.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 10 | 30 contacts → | ||||
Exact match “Big Elk Energy Systems LLC was founded to bring the best possible talent and service to the energy industry.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 11 | 28 contacts → | ||||
Exact match “XRG Technologies is an engineering and procurement company specializing in fired equipment for the refining, petrochemical and power markets.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 12 | 27 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 13 | 23 contacts → | ||||
Exact match “Purpose Engineering is a multi-disciplinary engineering services firm focused on industrial facilities.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 14 | 15 contacts → | ||||
Exact match “Doing Gas compression right - the first time, every time" We are engaged in helping our clients improve all aspects of gas compression, one site at a time.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 15 | 11 contacts → | ||||
Exact match “Vanco is a solution-oriented company founded in 1951 to provide successful engineered solutions with best-in-class mechanical process equipment.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 16 | 10 contacts → | ||||
Exact match “C5 Process Group Inc.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 17 | 9 contacts → | ||||
Exact match “Resolute Engineering provides a full complement of services across the energy industry.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 18 | 5 contacts → | ||||
Exact match “Reynolds-French has been providing service to the pipeline, gas processing, refining and chemical industries for over 75 years.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 19 | 5 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match “Innovative Production is dedicated to servicing the upstream oil and gas industry through our vast network of engineering, supply chain and manufacturing.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 21 | 1 contacts → | ||||
Exact match “Compression Dynamics Consulting, LLC is an engineering consulting firm specializing in the oil and natural gas industry.” Recorded in the RevenueBase company graph · Oct 11, 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 “downstream refining contractors”. 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 21 of 30 downstream refining contractors based in Tulsa, United States
See the full list, filter by size, metro and specialty, and access 589 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Downstream refining contractors based in Tulsa, United States at a glance
As of Oct 11, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Tulsa, so it is reported there. Company counts and contact totals on this page are exact for Tulsa, over 30 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 Tulsa, United States whose business descriptions match “downstream refining contractors” 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 589 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 October 11, 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.
Downstream refining contractors by metro in the United States
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 “downstream refining contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many downstream refining contractors are there based in Tulsa, United States?
RevenueBase identified 30 company matches for downstream refining contractors associated with Tulsa, United States as of October 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?
Matrix Service Company 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 downstream refining contractors?
Houston leads the United States with 214 company records, followed by Tulsa (30) and Midland (23).
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 589 professional contacts with verified work emails tracked across these 30 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 October 11, 2026.
Ready to reach these companies? Verified emails and direct dials for all 30 downstream refining contractors based in Tulsa, United States. Start with a free account, no credit card.
Download this list →Related lists
Downstream refining contractors by geography
- Downstream refining contractors based in Buenos Aires, Argentina
- Downstream refining contractors based in Perth, Australia
- Downstream refining contractors based in Rio De Janeiro, Brazil
- Downstream refining contractors based in Sao Paulo, Brazil
- Downstream refining contractors based in Calgary, Canada
- Downstream refining contractors based in Edmonton, Canada
- Downstream refining contractors based in Chennai, India
- Downstream refining contractors based in Mumbai, India
- Downstream refining contractors based in Pune, India
- Downstream refining contractors based in Vadodara, India
- Downstream refining contractors based in Tehran, Iran
- Downstream refining contractors based in Milan, Italy
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Downstream refining contractors based in Buenos Aires, Argentina
- Downstream refining contractors based in Perth, Australia
- Downstream refining contractors based in Rio De Janeiro, Brazil
- Downstream refining contractors based in Sao Paulo, Brazil
- Downstream refining contractors based in Calgary, Canada
- Downstream refining contractors based in Edmonton, Canada
Company intelligence · public preview
Top 21 downstream refining contractors based in Tulsa, 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 30 matching company records for downstream refining contractors based in Tulsa, United States, with 2,443 tracked contacts and 589 verified work emails.
This public preview shows 21 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 11, 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 21 downstream refining contractors based in Tulsa, 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 |  Matrix Service Companymatrixservicecompany.comHQ: Tulsa, OK, United StatesReported employees: 1,001-5,000 | Tulsa, OK, United States | 1,001-5,000 | Exact match | 809 contacts → |
“Matrix Service Company (Nasdaq: MTRX) is a leading specialty engineering and construction company whose commitment to safety, quality, and integrity has earned its subsidiaries a…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Matrix Servicematrixservice.comHQ: Tulsa, OK, United StatesReported employees: 1,001-5,000 | Tulsa, OK, United States | 1,001-5,000 | Exact match | 518 contacts → |
“Matrix Service is a subsidiary of Matrix Service Company (NASDAQ: MTRX).” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Matrix PDM Engineeringmatrixpdm.comHQ: Tulsa, OK, United StatesReported employees: 201-500 | Tulsa, OK, United States | 201-500 | Exact match | 168 contacts → |
“Matrix PDM Engineering, a subsidiary of Matrix Service Company (Nasdaq: MTRX) provides multi-disciplinary engineering, procurement and construction management services to the…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Tulsa, OK, United StatesReported employees: 201-500 | Tulsa, OK, United States | 201-500 | Exact match | 109 contacts → |
“JCL is a full service firm specializing in proactive solutions for safety, risk and material coordination services in the oil and gas, upstream, downstream, petrochemical and…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Select Engineering INCselect-engineering.comHQ: Tulsa, OK, United StatesReported employees: 51-200 | Tulsa, OK, United States | 51-200 | Exact match | 107 contacts → |
“Select Engineering, Inc, is a privately-held company with offices in Tulsa,OK and Houston,TX.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Integrated Service Company LLCinservusa.com HQ: Tulsa, OK, United StatesReported employees: 501-1,000 | Tulsa, OK, United States | 501-1,000 | Exact match | 100 contacts → |
“Integrated Service Company, LLC, is a trusted leading company in the Refining and Petrochemical industry, and we deliver efficiency and quality in all of our services: Field…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Esdc INCesdcengineering.comHQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 54 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 |  Quest EPCquestepc.comHQ: Tulsa, OK, United StatesReported employees: 51-200 | Tulsa, OK, United States | 51-200 | Exact match | 51 contacts → |
“Since 2013, Quest EPC has been constructing and servicing midstream and upstream facilities with our dedicated team of industry best technical resources.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  QPS Flint, LLCqpsflint.comHQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 32 contacts → |
“QPS Flint Construction (Flint) takes pride in a successful history constructing oil facilities, gas facilities and civil construction projects since 1957.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  BIG ELK Energy Systems, LLCbigelk.comHQ: Tulsa, OK, United StatesReported employees: 51-200 | Tulsa, OK, United States | 51-200 | Exact match | 30 contacts → |
“Big Elk Energy Systems LLC was founded to bring the best possible talent and service to the energy industry.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  XRG Technologies, LLCxrgtechnologies.comHQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 28 contacts → |
“XRG Technologies is an engineering and procurement company specializing in fired equipment for the refining, petrochemical and power markets.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Mohawk Field Services, INCmfsi-tulsa.com HQ: Tulsa, OK, United StatesReported employees: 201-500 | Tulsa, OK, United States | 201-500 | Exact match | 27 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 |  Purpose Engineering, LLCpurposeeng.comHQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 23 contacts → |
“Purpose Engineering is a multi-disciplinary engineering services firm focused on industrial facilities.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Scfm Compression Systemsscfm.comHQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 15 contacts → |
“Doing Gas compression right - the first time, every time" We are engaged in helping our clients improve all aspects of gas compression, one site at a time.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Vanco, A Cogent Companyvanco-inc.com HQ: Tulsa, OK, United StatesReported employees: 201-500 | Tulsa, OK, United States | 201-500 | Exact match | 11 contacts → |
“Vanco is a solution-oriented company founded in 1951 to provide successful engineered solutions with best-in-class mechanical process equipment.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  C5 Process Group, INCc5pg.comHQ: Tulsa, OK, United StatesReported employees: 1-10 | Tulsa, OK, United States | 1-10 | Exact match | 10 contacts → |
“C5 Process Group Inc.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Resolute Engineering, LLCresolute-engineering.comHQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 9 contacts → |
“Resolute Engineering provides a full complement of services across the energy industry.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Reynolds-French & Companyr-f.com HQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 5 contacts → |
“Reynolds-French has been providing service to the pipeline, gas processing, refining and chemical industries for over 75 years.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Insulation Specialists Of Tulsa INCistiplantservices.com HQ: Tulsa, OK, United StatesReported employees: 1-10 | Tulsa, OK, United States | 1-10 | Exact match | 5 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 |  Innovative Productioninnovp.comHQ: Tulsa, OK, United StatesReported employees: 1-10 | Tulsa, OK, United States | 1-10 | Exact match | 3 contacts → |
“Innovative Production is dedicated to servicing the upstream oil and gas industry through our vast network of engineering, supply chain and manufacturing.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Compression Dynamics Consulting, LLCcdconsulting.comHQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 1 contacts → |
“Compression Dynamics Consulting, LLC is an engineering consulting firm specializing in the oil and natural gas industry.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 21 of 30 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Downstream refining contractors: dataset insights
October 11, 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
30 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 across the whole United States list rather than for Tulsa, so it is reported there. Company counts and contact totals on this page are exact for Tulsa, over 30 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: October 11, 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 ↗
Downstream refining contractors by metro in the United States
Questions about this company list
What does Exact match mean for downstream refining contractors?
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 downstream refining contractors did RevenueBase find based in Tulsa, United States?
The saved snapshot records 30 matching company records, 2,443 tracked contacts and 589 verified emails. The public preview displays 21 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: October 11, 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
Downstream refining contractors by geography
- Downstream refining contractors based in Buenos Aires, Argentina
- Downstream refining contractors based in Perth, Australia
- Downstream refining contractors based in Rio De Janeiro, Brazil
- Downstream refining contractors based in Sao Paulo, Brazil
- Downstream refining contractors based in Calgary, Canada
- Downstream refining contractors based in Edmonton, Canada
- Downstream refining contractors based in Chennai, India
- Downstream refining contractors based in Mumbai, India
- Downstream refining contractors based in Pune, India
- Downstream refining contractors based in Vadodara, India
- Downstream refining contractors based in Tehran, Iran
- Downstream refining contractors based in Milan, Italy
Cite this list
RevenueBase Data Team. Top 21 downstream refining contractors based in Tulsa, United States. Snapshot: October 11, 2026. https://revenuebase.ai/companies/downstream-refining-contractors/united-states/tulsa.
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
- Downstream refining contractors based in Buenos Aires, Argentina
- Downstream refining contractors based in Perth, Australia
- Downstream refining contractors based in Rio De Janeiro, Brazil
- Downstream refining contractors based in Sao Paulo, Brazil
- Downstream refining contractors based in Calgary, Canada
- Downstream refining contractors based in Edmonton, Canada
Company intelligence · public preview
Top 21 downstream refining contractors based in Tulsa, United States
RevenueBase records 30 matching company records for downstream refining contractors based in Tulsa, United States, with 2,443 tracked contacts and 589 verified work emails.
This public preview shows 21 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 11, 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 21 downstream refining contractors based in Tulsa, 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 | Matrix Service Companymatrixservicecompany.com HQ: Tulsa, OK, United StatesReported employees: 1,001-5,000 | Tulsa, OK, United States | 1,001-5,000 | Exact match | 809 contacts → |
“Matrix Service Company (Nasdaq: MTRX) is a leading specialty engineering and construction company whose commitment to safety, quality, and integrity has earned its subsidiaries a…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Matrix Servicematrixservice.com HQ: Tulsa, OK, United StatesReported employees: 1,001-5,000 | Tulsa, OK, United States | 1,001-5,000 | Exact match | 518 contacts → |
“Matrix Service is a subsidiary of Matrix Service Company (NASDAQ: MTRX).” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Matrix PDM Engineeringmatrixpdm.com HQ: Tulsa, OK, United StatesReported employees: 201-500 | Tulsa, OK, United States | 201-500 | Exact match | 168 contacts → |
“Matrix PDM Engineering, a subsidiary of Matrix Service Company (Nasdaq: MTRX) provides multi-disciplinary engineering, procurement and construction management services to the…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | HQ: Tulsa, OK, United StatesReported employees: 201-500 | Tulsa, OK, United States | 201-500 | Exact match | 109 contacts → |
“JCL is a full service firm specializing in proactive solutions for safety, risk and material coordination services in the oil and gas, upstream, downstream, petrochemical and…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Select Engineering INCselect-engineering.com HQ: Tulsa, OK, United StatesReported employees: 51-200 | Tulsa, OK, United States | 51-200 | Exact match | 107 contacts → |
“Select Engineering, Inc, is a privately-held company with offices in Tulsa,OK and Houston,TX.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Integrated Service Company LLCinservusa.com HQ: Tulsa, OK, United StatesReported employees: 501-1,000 | Tulsa, OK, United States | 501-1,000 | Exact match | 100 contacts → |
“Integrated Service Company, LLC, is a trusted leading company in the Refining and Petrochemical industry, and we deliver efficiency and quality in all of our services: Field…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Esdc INCesdcengineering.com HQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 54 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 | Quest EPCquestepc.com HQ: Tulsa, OK, United StatesReported employees: 51-200 | Tulsa, OK, United States | 51-200 | Exact match | 51 contacts → |
“Since 2013, Quest EPC has been constructing and servicing midstream and upstream facilities with our dedicated team of industry best technical resources.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | QPS Flint, LLCqpsflint.com HQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 32 contacts → |
“QPS Flint Construction (Flint) takes pride in a successful history constructing oil facilities, gas facilities and civil construction projects since 1957.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | BIG ELK Energy Systems, LLCbigelk.com HQ: Tulsa, OK, United StatesReported employees: 51-200 | Tulsa, OK, United States | 51-200 | Exact match | 30 contacts → |
“Big Elk Energy Systems LLC was founded to bring the best possible talent and service to the energy industry.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | XRG Technologies, LLCxrgtechnologies.com HQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 28 contacts → |
“XRG Technologies is an engineering and procurement company specializing in fired equipment for the refining, petrochemical and power markets.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Mohawk Field Services, INCmfsi-tulsa.com HQ: Tulsa, OK, United StatesReported employees: 201-500 | Tulsa, OK, United States | 201-500 | Exact match | 27 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Purpose Engineering, LLCpurposeeng.com HQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 23 contacts → |
“Purpose Engineering is a multi-disciplinary engineering services firm focused on industrial facilities.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Scfm Compression Systemsscfm.com HQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 15 contacts → |
“Doing Gas compression right - the first time, every time" We are engaged in helping our clients improve all aspects of gas compression, one site at a time.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Vanco, A Cogent Companyvanco-inc.com HQ: Tulsa, OK, United StatesReported employees: 201-500 | Tulsa, OK, United States | 201-500 | Exact match | 11 contacts → |
“Vanco is a solution-oriented company founded in 1951 to provide successful engineered solutions with best-in-class mechanical process equipment.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | C5 Process Group, INCc5pg.com HQ: Tulsa, OK, United StatesReported employees: 1-10 | Tulsa, OK, United States | 1-10 | Exact match | 10 contacts → |
“C5 Process Group Inc.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Resolute Engineering, LLCresolute-engineering.com HQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 9 contacts → |
“Resolute Engineering provides a full complement of services across the energy industry.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Reynolds-French & Companyr-f.com HQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 5 contacts → |
“Reynolds-French has been providing service to the pipeline, gas processing, refining and chemical industries for over 75 years.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Insulation Specialists Of Tulsa INCistiplantservices.com HQ: Tulsa, OK, United StatesReported employees: 1-10 | Tulsa, OK, United States | 1-10 | Exact match | 5 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | Innovative Productioninnovp.com HQ: Tulsa, OK, United StatesReported employees: 1-10 | Tulsa, OK, United States | 1-10 | Exact match | 3 contacts → |
“Innovative Production is dedicated to servicing the upstream oil and gas industry through our vast network of engineering, supply chain and manufacturing.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Compression Dynamics Consulting, LLCcdconsulting.com HQ: Tulsa, OK, United StatesReported employees: 11-50 | Tulsa, OK, United States | 11-50 | Exact match | 1 contacts → |
“Compression Dynamics Consulting, LLC is an engineering consulting firm specializing in the oil and natural gas industry.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 21 of 30 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Downstream refining contractors: dataset insights
October 11, 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
30 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 across the whole United States list rather than for Tulsa, so it is reported there. Company counts and contact totals on this page are exact for Tulsa, over 30 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: October 11, 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 ↗
Downstream refining contractors by metro in the United States
Questions about this company list
What does Exact match mean for downstream refining contractors?
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 downstream refining contractors did RevenueBase find based in Tulsa, United States?
The saved snapshot records 30 matching company records, 2,443 tracked contacts and 589 verified emails. The public preview displays 21 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: October 11, 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
Downstream refining contractors by geography
- Downstream refining contractors based in Buenos Aires, Argentina
- Downstream refining contractors based in Perth, Australia
- Downstream refining contractors based in Rio De Janeiro, Brazil
- Downstream refining contractors based in Sao Paulo, Brazil
- Downstream refining contractors based in Calgary, Canada
- Downstream refining contractors based in Edmonton, Canada
- Downstream refining contractors based in Chennai, India
- Downstream refining contractors based in Mumbai, India
- Downstream refining contractors based in Pune, India
- Downstream refining contractors based in Vadodara, India
- Downstream refining contractors based in Tehran, Iran
- Downstream refining contractors based in Milan, Italy
Cite this list
RevenueBase Data Team. Top 21 downstream refining contractors based in Tulsa, United States. Snapshot: October 11, 2026. https://revenuebase.ai/companies/downstream-refining-contractors/united-states/tulsa.
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
- Downstream refining contractors based in Buenos Aires, Argentina
- Downstream refining contractors based in Perth, Australia
- Downstream refining contractors based in Rio De Janeiro, Brazil
- Downstream refining contractors based in Sao Paulo, Brazil
- Downstream refining contractors based in Calgary, Canada
- Downstream refining contractors based in Edmonton, Canada