Company lists · Data refreshed September 2026
Top 25 Well drilling companies based in the United States
RevenueBase identified 543 company matches for well drilling companies associated with the United States as of September 2026 and tracks 3,512 professional contacts across them, including 531 with verified work emails. Midland is the largest hub.
This list covers company matches for well drilling companies 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 22, 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 25 largest well drilling companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 291 contacts → | ||||
Exact match “LEAM Drilling Systems, Inc.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 2 | 134 contacts → | ||||
Exact match “Nomac Drilling is now Patterson-UTI.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 3 | 83 contacts → | ||||
Exact match “Hole Products is a leading manufacturer and supplier of high performance drilling supplies, tools and equipment to the construction, direct push, environmental, geotechnical…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 73 contacts → | ||||
Exact match “Youngquist Brothers is a privately held well drilling company focused on the construction of large diameter, Class 1 deep injection wells.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 5 | 56 contacts → | ||||
Exact match “Authentic relationships are standard practice at Weisinger Incorporated.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 6 | 27 contacts → | ||||
Exact match “Weber Water Resources vision is to be the Industry Leader in Innovative and Strategic Water Resource Solutions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 7 | 25 contacts → | ||||
Exact match “A.C.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 8 | 24 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 9 | 22 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 21 contacts → | ||||
Exact match “C&J Well Company is Central Indiana's premier drilling and full service well contractor company.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 11 | 21 contacts → | ||||
Exact match “When your company needs oil and gas exploration, geothermal, disposal, water wells, caisson, pier or conductor/rat/mouse holes, using top of the line, well maintained equipment…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 12 | 20 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 13 | 20 contacts → | ||||
Exact match “Florida Drilling is a licensed water well and general contractor and leading provider of water well drilling and water resource construction services located in West Palm Beach…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 18 contacts → | ||||
Exact match “General Contractor specializing in Well Drilling, Well Rehabilitation, Pump Installation & Repair, and Controls for municipal, industrial & recreational clients throughout the…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 15 | 17 contacts → | ||||
Exact match “Capital Well Clean Water Center, since 1986, has provided the highest quality water care services.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 16 | 17 contacts → | ||||
Exact match “Water Well Solutions Service Group, LLC.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 17 | 17 contacts → | ||||
Exact match “Sam's Well Drilling is the Midwest's premier drilling company.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 18 | 16 contacts → | ||||
Exact match “We are a full service water supply contractor, working in all phases of water well/system engineering and installation throughout the States of Indiana, Ohio, Illinois, and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 19 | 16 contacts → | ||||
Exact match “We specialize in: Angle or Vertical, Dual Tube/ RC and Conventional Rotary Drilling.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 20 | 15 contacts → | ||||
Exact match “Founded in 1977, Madera Pumps is a full-service pump and well services provider that serves farming operations, municipalities, domestic homes and Irrigation Districts in the…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 21 | 15 contacts → | ||||
Exact match “AIP Drilling Division Inc, a minority owned company, provides a team of qualified technical professionals, both international and domestic.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 22 | 14 contacts → | ||||
Exact match “Subsurface Technologies, Inc provides standard and specialized groundwater services to the municipal, industrial, residential and investor owned water utility markets.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 23 | 13 contacts → | ||||
Exact match “Clearwater Resources is a full service water management, well drilling and pump service company serving the oil and gas industry.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 24 | 13 contacts → | ||||
Exact match “GEFCO is a world leader in the water well drilling industry, manufacturing portable drilling rigs and related equipment for the water well, environmental, groundwater monitoring…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 25 | 13 contacts → | ||||
Exact match “From our beginning in 1946, we have always strived to deliver to our customers the quality of service they expect and deserve.” Recorded in the RevenueBase company graph · Sep 22, 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 “well drilling companies”. 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 25 of 543 well drilling companies based in the United States
See the full list, filter by size, metro and specialty, and access 531 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Well drilling companies based in the United States at a glance
As of Sep 22, 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 543 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 “well drilling companies” 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 531 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 22, 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 “well drilling companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many well drilling companies are there based in the United States?
RevenueBase identified 543 company matches for well drilling companies 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?
Leam Drilling Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most well drilling companies?
Midland leads with 5 company records, followed by Houston (4) and Phoenix (4).
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 531 professional contacts with verified work emails tracked across these 543 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 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 543 well drilling companies based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Well drilling companies by geography
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- Well drilling companies based in the United Kingdom
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
- Well drilling companies based in Australia
- Well drilling companies based in Brazil
- Well drilling companies based in Canada
- Well drilling companies based in Germany
- Well drilling companies based in the Netherlands
- Well drilling companies based in South Africa
Company intelligence · public preview
Top 25 well drilling companies 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 543 matching company records for well drilling companies based in the United States, with 3,512 tracked contacts and 531 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 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 25 well drilling companies 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 |  Leam Drilling Servicesleam.netHQ: New Iberia, LA, United StatesReported employees: 501-1,000 | New Iberia, LA, United States | 501-1,000 | Exact match | 291 contacts → |
“LEAM Drilling Systems, Inc.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Nomac Drillingpatenergy.comHQ: El Reno, OK, United StatesReported employees: 1,001-5,000 | El Reno, OK, United States | 1,001-5,000 | Exact match | 134 contacts → |
“Nomac Drilling is now Patterson-UTI.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Hole Productsholeproducts.com HQ: Little Falls, MN, United StatesReported employees: 51-200 | Little Falls, MN, United States | 51-200 | Exact match | 83 contacts → |
“Hole Products is a leading manufacturer and supplier of high performance drilling supplies, tools and equipment to the construction, direct push, environmental, geotechnical…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Youngquist Brothersyoungquistbrothers.com HQ: Fort Myers, FL, United StatesReported employees: 51-200 | Fort Myers, FL, United States | 51-200 | Exact match | 73 contacts → |
“Youngquist Brothers is a privately held well drilling company focused on the construction of large diameter, Class 1 deep injection wells.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Weisinger Incorporatedweisingerinc.com HQ: Willis, TX, United StatesReported employees: 201-500 | Willis, TX, United States | 201-500 | Exact match | 56 contacts → |
“Authentic relationships are standard practice at Weisinger Incorporated.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Weber Water Resourcesweberwaterresources.comHQ: Southwestern, AZ, United StatesReported employees: 51-200 | Southwestern, AZ, United States | 51-200 | Exact match | 27 contacts → |
“Weber Water Resources vision is to be the Industry Leader in Innovative and Strategic Water Resource Solutions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  A.C. Schultes, INCacschultes.comHQ: Woodbury Heights, NJ, United StatesReported employees: 51-200 | Woodbury Heights, NJ, United States | 51-200 | Exact match | 25 contacts → |
“A.C.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Griner Drilling Service, INCgrinerdrillingservice.com HQ: Columbia, MS, United StatesReported employees: 51-200 | Columbia, MS, United States | 51-200 | Exact match | 24 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 | General Pump Company, INCgenpump.com HQ: San Dimas, CA, United StatesReported employees: 51-200 | San Dimas, CA, United States | 51-200 | Exact match | 22 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | C&j Well COcj4water.com HQ: Brownsburg, IN, United StatesReported employees: 11-50 | Brownsburg, IN, United States | 11-50 | Exact match | 21 contacts → |
“C&J Well Company is Central Indiana's premier drilling and full service well contractor company.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | White Mountain Operatingwmoperating.com HQ: Pinedale, WY, United StatesReported employees: 51-200 | Pinedale, WY, United States | 51-200 | Exact match | 21 contacts → |
“When your company needs oil and gas exploration, geothermal, disposal, water wells, caisson, pier or conductor/rat/mouse holes, using top of the line, well maintained equipment…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Connelly And Associates, INCconnellyandassociates.com HQ: Frederick, MD, United StatesReported employees: 51-200 | Frederick, MD, United States | 51-200 | Exact match | 20 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Florida Drillingfldrilling.com HQ: West Palm Beach, FL, United StatesReported employees: 51-200 | West Palm Beach, FL, United States | 51-200 | Exact match | 20 contacts → |
“Florida Drilling is a licensed water well and general contractor and leading provider of water well drilling and water resource construction services located in West Palm Beach…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Municipal Well & Pumpmunicipalwellandpump.com HQ: Waupun, WI, United StatesReported employees: 11-50 | Waupun, WI, United States | 11-50 | Exact match | 18 contacts → |
“General Contractor specializing in Well Drilling, Well Rehabilitation, Pump Installation & Repair, and Controls for municipal, industrial & recreational clients throughout the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Capital Well Clean Water Centercapitalwell.com HQ: Dunbarton, NH, United StatesReported employees: 11-50 | Dunbarton, NH, United States | 11-50 | Exact match | 17 contacts → |
“Capital Well Clean Water Center, since 1986, has provided the highest quality water care services.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: Oconomowoc, WI, United StatesReported employees: 11-50 | Oconomowoc, WI, United States | 11-50 | Exact match | 17 contacts → |
“Water Well Solutions Service Group, LLC.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Sam's Well Drillingsamswelldrilling.com HQ: Randolph, WI, United StatesReported employees: 51-200 | Randolph, WI, United States | 51-200 | Exact match | 17 contacts → |
“Sam's Well Drilling is the Midwest's premier drilling company.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Ortman Drilling And Water Servicesortmandrilling.com HQ: Kokomo, IN, United StatesReported employees: 11-50 | Kokomo, IN, United States | 11-50 | Exact match | 16 contacts → |
“We are a full service water supply contractor, working in all phases of water well/system engineering and installation throughout the States of Indiana, Ohio, Illinois, and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Harris Exploration Drilling An Earth Drilling USA Companyharrisexploration.com HQ: Fallon, NV, United StatesReported employees: 11-50 | Fallon, NV, United States | 11-50 | Exact match | 16 contacts → |
“We specialize in: Angle or Vertical, Dual Tube/ RC and Conventional Rotary Drilling.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Madera Pumpsmaderapumps.com HQ: Madera, CA, United StatesReported employees: 11-50 | Madera, CA, United States | 11-50 | Exact match | 15 contacts → |
“Founded in 1977, Madera Pumps is a full-service pump and well services provider that serves farming operations, municipalities, domestic homes and Irrigation Districts in the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  AIP INCaipcenergy.comHQ: San Antonio, TX, United StatesReported employees: 11-50 | San Antonio, TX, United States | 11-50 | Exact match | 15 contacts → |
“AIP Drilling Division Inc, a minority owned company, provides a team of qualified technical professionals, both international and domestic.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Subsurface Technologies, INCsubsurfacetech.com HQ: Rock Tavern, NY, United StatesReported employees: 11-50 | Rock Tavern, NY, United States | 11-50 | Exact match | 14 contacts → |
“Subsurface Technologies, Inc provides standard and specialized groundwater services to the municipal, industrial, residential and investor owned water utility markets.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Clearwater Resourcescwtexas.net HQ: Midland, TX, United StatesReported employees: 51-200 | Midland, TX, United States | 51-200 | Exact match | 13 contacts → |
“Clearwater Resources is a full service water management, well drilling and pump service company serving the oil and gas industry.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | GEFCOgefco.com HQ: Conroe, TX, United StatesReported employees: 51-200 | Conroe, TX, United States | 51-200 | Exact match | 13 contacts → |
“GEFCO is a world leader in the water well drilling industry, manufacturing portable drilling rigs and related equipment for the water well, environmental, groundwater monitoring…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Rapad Drilling Company, LLCrapaddrilling.com HQ: Jackson, MS, United StatesReported employees: 201-500 | Jackson, MS, United States | 201-500 | Exact match | 13 contacts → |
“From our beginning in 1946, we have always strived to deliver to our customers the quality of service they expect and deserve.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 543 company matches
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Well drilling companies: dataset insights
September 22, 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
540 records in the displayed employee bands.
3 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 543 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 22, 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 well drilling companies?
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 well drilling companies did RevenueBase find based in the United States?
The saved snapshot records 543 matching company records, 3,512 tracked contacts and 531 verified emails. The public preview displays 25 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 22, 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
Well drilling companies by geography
- Well drilling companies based in Australia
- Well drilling companies based in Brazil
- Well drilling companies based in Canada
- Well drilling companies based in Germany
- Well drilling companies based in the Netherlands
- Well drilling companies based in South Africa
- Well drilling companies based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 well drilling companies based in the United States. Snapshot: September 22, 2026. https://revenuebase.ai/companies/well-drilling-companies/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
- Well drilling companies based in Australia
- Well drilling companies based in Brazil
- Well drilling companies based in Canada
- Well drilling companies based in Germany
- Well drilling companies based in the Netherlands
- Well drilling companies based in South Africa
Company intelligence · public preview
Top 25 well drilling companies based in the United States
RevenueBase records 543 matching company records for well drilling companies based in the United States, with 3,512 tracked contacts and 531 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 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 25 well drilling companies 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 | Leam Drilling Servicesleam.net HQ: New Iberia, LA, United StatesReported employees: 501-1,000 | New Iberia, LA, United States | 501-1,000 | Exact match | 291 contacts → |
“LEAM Drilling Systems, Inc.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Nomac Drillingpatenergy.com HQ: El Reno, OK, United StatesReported employees: 1,001-5,000 | El Reno, OK, United States | 1,001-5,000 | Exact match | 134 contacts → |
“Nomac Drilling is now Patterson-UTI.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Hole Productsholeproducts.com HQ: Little Falls, MN, United StatesReported employees: 51-200 | Little Falls, MN, United States | 51-200 | Exact match | 83 contacts → |
“Hole Products is a leading manufacturer and supplier of high performance drilling supplies, tools and equipment to the construction, direct push, environmental, geotechnical…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Youngquist Brothersyoungquistbrothers.com HQ: Fort Myers, FL, United StatesReported employees: 51-200 | Fort Myers, FL, United States | 51-200 | Exact match | 73 contacts → |
“Youngquist Brothers is a privately held well drilling company focused on the construction of large diameter, Class 1 deep injection wells.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Weisinger Incorporatedweisingerinc.com HQ: Willis, TX, United StatesReported employees: 201-500 | Willis, TX, United States | 201-500 | Exact match | 56 contacts → |
“Authentic relationships are standard practice at Weisinger Incorporated.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Weber Water Resourcesweberwaterresources.com HQ: Southwestern, AZ, United StatesReported employees: 51-200 | Southwestern, AZ, United States | 51-200 | Exact match | 27 contacts → |
“Weber Water Resources vision is to be the Industry Leader in Innovative and Strategic Water Resource Solutions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | A.C. Schultes, INCacschultes.com HQ: Woodbury Heights, NJ, United StatesReported employees: 51-200 | Woodbury Heights, NJ, United States | 51-200 | Exact match | 25 contacts → |
“A.C.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Griner Drilling Service, INCgrinerdrillingservice.com HQ: Columbia, MS, United StatesReported employees: 51-200 | Columbia, MS, United States | 51-200 | Exact match | 24 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 | General Pump Company, INCgenpump.com HQ: San Dimas, CA, United StatesReported employees: 51-200 | San Dimas, CA, United States | 51-200 | Exact match | 22 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | C&j Well COcj4water.com HQ: Brownsburg, IN, United StatesReported employees: 11-50 | Brownsburg, IN, United States | 11-50 | Exact match | 21 contacts → |
“C&J Well Company is Central Indiana's premier drilling and full service well contractor company.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | White Mountain Operatingwmoperating.com HQ: Pinedale, WY, United StatesReported employees: 51-200 | Pinedale, WY, United States | 51-200 | Exact match | 21 contacts → |
“When your company needs oil and gas exploration, geothermal, disposal, water wells, caisson, pier or conductor/rat/mouse holes, using top of the line, well maintained equipment…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Connelly And Associates, INCconnellyandassociates.com HQ: Frederick, MD, United StatesReported employees: 51-200 | Frederick, MD, United States | 51-200 | Exact match | 20 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Florida Drillingfldrilling.com HQ: West Palm Beach, FL, United StatesReported employees: 51-200 | West Palm Beach, FL, United States | 51-200 | Exact match | 20 contacts → |
“Florida Drilling is a licensed water well and general contractor and leading provider of water well drilling and water resource construction services located in West Palm Beach…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Municipal Well & Pumpmunicipalwellandpump.com HQ: Waupun, WI, United StatesReported employees: 11-50 | Waupun, WI, United States | 11-50 | Exact match | 18 contacts → |
“General Contractor specializing in Well Drilling, Well Rehabilitation, Pump Installation & Repair, and Controls for municipal, industrial & recreational clients throughout the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Capital Well Clean Water Centercapitalwell.com HQ: Dunbarton, NH, United StatesReported employees: 11-50 | Dunbarton, NH, United States | 11-50 | Exact match | 17 contacts → |
“Capital Well Clean Water Center, since 1986, has provided the highest quality water care services.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | HQ: Oconomowoc, WI, United StatesReported employees: 11-50 | Oconomowoc, WI, United States | 11-50 | Exact match | 17 contacts → |
“Water Well Solutions Service Group, LLC.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Sam's Well Drillingsamswelldrilling.com HQ: Randolph, WI, United StatesReported employees: 51-200 | Randolph, WI, United States | 51-200 | Exact match | 17 contacts → |
“Sam's Well Drilling is the Midwest's premier drilling company.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Ortman Drilling And Water Servicesortmandrilling.com HQ: Kokomo, IN, United StatesReported employees: 11-50 | Kokomo, IN, United States | 11-50 | Exact match | 16 contacts → |
“We are a full service water supply contractor, working in all phases of water well/system engineering and installation throughout the States of Indiana, Ohio, Illinois, and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Harris Exploration Drilling An Earth Drilling USA Companyharrisexploration.com HQ: Fallon, NV, United StatesReported employees: 11-50 | Fallon, NV, United States | 11-50 | Exact match | 16 contacts → |
“We specialize in: Angle or Vertical, Dual Tube/ RC and Conventional Rotary Drilling.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Madera Pumpsmaderapumps.com HQ: Madera, CA, United StatesReported employees: 11-50 | Madera, CA, United States | 11-50 | Exact match | 15 contacts → |
“Founded in 1977, Madera Pumps is a full-service pump and well services provider that serves farming operations, municipalities, domestic homes and Irrigation Districts in the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | AIP INCaipcenergy.com HQ: San Antonio, TX, United StatesReported employees: 11-50 | San Antonio, TX, United States | 11-50 | Exact match | 15 contacts → |
“AIP Drilling Division Inc, a minority owned company, provides a team of qualified technical professionals, both international and domestic.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Subsurface Technologies, INCsubsurfacetech.com HQ: Rock Tavern, NY, United StatesReported employees: 11-50 | Rock Tavern, NY, United States | 11-50 | Exact match | 14 contacts → |
“Subsurface Technologies, Inc provides standard and specialized groundwater services to the municipal, industrial, residential and investor owned water utility markets.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Clearwater Resourcescwtexas.net HQ: Midland, TX, United StatesReported employees: 51-200 | Midland, TX, United States | 51-200 | Exact match | 13 contacts → |
“Clearwater Resources is a full service water management, well drilling and pump service company serving the oil and gas industry.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | GEFCOgefco.com HQ: Conroe, TX, United StatesReported employees: 51-200 | Conroe, TX, United States | 51-200 | Exact match | 13 contacts → |
“GEFCO is a world leader in the water well drilling industry, manufacturing portable drilling rigs and related equipment for the water well, environmental, groundwater monitoring…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Rapad Drilling Company, LLCrapaddrilling.com HQ: Jackson, MS, United StatesReported employees: 201-500 | Jackson, MS, United States | 201-500 | Exact match | 13 contacts → |
“From our beginning in 1946, we have always strived to deliver to our customers the quality of service they expect and deserve.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 543 company matches
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Well drilling companies: dataset insights
September 22, 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
540 records in the displayed employee bands.
3 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 543 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 22, 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 well drilling companies?
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 well drilling companies did RevenueBase find based in the United States?
The saved snapshot records 543 matching company records, 3,512 tracked contacts and 531 verified emails. The public preview displays 25 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 22, 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.
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Cite this list
RevenueBase Data Team. Top 25 well drilling companies based in the United States. Snapshot: September 22, 2026. https://revenuebase.ai/companies/well-drilling-companies/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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