Company lists · Data refreshed September 2026

Top 25 Reservoir monitoring companies based in the United States

RevenueBase identified 112 reservoir monitoring companies headquartered in the United States as of September 2026 and tracks 54,942 professional contacts across them, including 15,230 with verified work emails. Houston is the largest hub.

This list covers reservoir monitoring companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
112Companies
54,942Contacts tracked
15,230Verified emails
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The 25 largest reservoir monitoring companies based in the United States

Ranked by team size
Top 25 of 112 reservoir monitoring companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to reservoir monitoring companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceHouston, TX, United StatesHQ checked Sep 21, 202610001+53,380 contacts →

Indirect evidence

“We collaborate and engineer solutions to maximize asset value for our customers.”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceMissouri City, TX, United StatesHQ checked Sep 21, 2026201-500396 contacts →

Partial evidence

“GGS provides an integrated suite of Geoscience solutions to the global oil and gas industry including high-resolution RG-3D Reservoir Grade® seismic data acquisition, Multi Client…”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 202651-200169 contacts →

Partial evidence

“ESG Solutions is a world leader in passive microseismic monitoring.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceHouston, TX, United StatesHQ checked Sep 21, 202651-20082 contacts →

Indirect evidence

“Anyone can provide data.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceHouston, TX, United StatesHQ checked Sep 21, 202651-20079 contacts →

Indirect evidence

“Specialist in Real-Time Completions Intelligence for Fracture Geometry & Efficiency | Geohazards | Stress Field | CCUS | Geothermal | FDI | Sinkhole Detection | Induced Seismicity…”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceBroussard, LA, United StatesHQ checked Sep 21, 202651-20072 contacts →

Indirect evidence

“Oilfield Instrumentation is a best-in-class provider of real time drilling instrumentation and certified offshore and land buildings for the oil and gas industry.”

Source: RevenueBase Database · checked Sep 21, 2026
7Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 202611-5059 contacts →

Partial evidence

“NuTech is an upstream reservoir solutions company specializing in creating strategies to value, manage, and act on assets in all phases of the reservoir life cycle.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceHouston, TX, United StatesHQ checked Sep 21, 202651-20046 contacts →

Indirect evidence

“Founded in Sylvan Lake, Alberta, Canada, Spartek Systems has over 100 employees worldwide.”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 202611-5029 contacts →

Partial evidence

“Seismic Imaging & Reservoir Services & Petrophysics”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceFort Collins, CO, United StatesHQ checked Sep 21, 202611-5027 contacts →

Indirect evidence

“RLE and Cellwatch are now Parameter.”

Source: RevenueBase Database · checked Sep 21, 2026
11Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 202611-5026 contacts →

Partial evidence

“Ziebel is a unique technology company focused on providing high value measurements to oil and gas companies, allowing them to improve reservoir recovery factors.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 202611-5023 contacts →

Partial evidence

“QED Energy Associates proudly provides excellence in reservoir engineering technician services.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceLaramie, WY, United StatesHQ checked Sep 21, 202651-20023 contacts →

Indirect evidence

“WellDog is a privately held company focused on using innovative technologies to improve exploration and production of oil, gas and alternative energy resources.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceDallas, TX, United StatesHQ checked Sep 21, 202611-5020 contacts →

Indirect evidence

“Born from the merger of two renowned firms: Haas Engineering and Cobb & Associates, HAAS & COBB's team of professional engineers and geologists bring a wealth of knowledge and a…”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceDenver, CO, United StatesHQ checked Sep 21, 202611-5019 contacts →

Partial evidence

“Since its inception in 1995, NITEC has had the opportunity to perform many large-scale, fully-integrated studies on highly complex reservoirs in addition to spacing, completion…”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 202611-5019 contacts →

Partial evidence

“ResMetrics is an oilfield services company that specializes in providing advanced reservoir diagnostics through the use of chemical tracers.”

Source: RevenueBase Database · checked Sep 21, 2026
17Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 202611-5018 contacts →

Partial evidence

“Partnering with our customers to provide solutions for completion diagnostics and reservoir development.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceBakersfield, CA, United StatesHQ checked Sep 21, 202611-5016 contacts →

Indirect evidence

“Anatesco: Precision.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceHouston, TX, United StatesHQ checked Sep 21, 202611-5015 contacts →

Indirect evidence

“ODSI is a consulting company to the oil and gas industry.”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceKaty, TX, United StatesHQ checked Sep 21, 202611-5015 contacts →

Indirect evidence

“RDS is an oilfield technology company that provides REAL TIME data acquisition and transmission.”

Source: RevenueBase Database · checked Sep 21, 2026
21Partial evidenceSeattle, WA, United StatesHQ checked Sep 21, 20261-1014 contacts →

Partial evidence

“Trusted by the DOE and US Navy, MarineSitu provide state-of-the-art underwater monitoring solutions for marine energy, aquaculture, fish counting, reef monitoring, academic…”

Source: RevenueBase Database · checked Sep 21, 2026
22Partial evidenceHouston, TX, United StatesHQ checked Sep 21, 20261-1012 contacts →

Partial evidence

“Quantico Energy Solutions is a leading data science company in the areas of reservoir and wellbore characterization.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceHouston, TX, United StatesHQ checked Sep 21, 202611-5012 contacts →

Indirect evidence

“Absmart specializes in tracking oil, water, drill solids, and barite, beyond just whole mud, from wellbore circulation, cleanup and disposal.”

Source: RevenueBase Database · checked Sep 21, 2026
24Partial evidenceVan Nuys, CA, United StatesHQ checked Sep 21, 202611-5011 contacts →

Partial evidence

“Paulsson provides Surveying and Monitoring Solutions for Underground Gas Storage (UGS), Enhanced Geothermal Systems (EGS), Enhanced Oil and Gas Recovery (EOR), and Oil and Gas…”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceWhite River Junction, VT, United StatesHQ checked Sep 21, 202611-5010 contacts →

Indirect evidence

“New England Research (NER) specializes in the measurement and interpretation of rock properties for the energy industry.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 112 reservoir monitoring companies based in the United States

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Reservoir monitoring companies based in the United States at a glance

As of Sep 21, 2026
27.7%Verified-email coverage
490.6Average contacts per company
11-50Median size (employees)
27.7%Largest-city concentration · Houston
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
55
11-50
42
51-200
12
201-500
1
1,001-5,000
1
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 112 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among reservoir monitoring companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United States whose own description of what they do matches “reservoir monitoring companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names reservoir monitoring companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among reservoir monitoring companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 15,230 across the full list. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Reservoir monitoring companies by metro

  • Reservoir monitoring companies in Houston31

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names reservoir monitoring companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many reservoir monitoring companies are there based in the United States?

RevenueBase identified 112 reservoir monitoring companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Halliburton, headquartered in Houston, tops this list with the largest team on record.

Which city has the most reservoir monitoring companies?

Houston leads with 31 headquartered companies, followed by Denver (5) and Dallas (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 15,230 verified decision-maker contacts tracked across these 112 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, 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.