Company lists · Data refreshed November 2026
Top 25 Water meter testing contractors based in the United States
RevenueBase identified 60 company matches for water meter testing contractors associated with the United States as of November 2026 and tracks 577 professional contacts across them, including 231 with verified work emails. Houston is the largest hub.
This list covers company matches for water meter testing contractors associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest water meter testing contractors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 100 contacts → | ||||
Exact match “Every Measurement Matters.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 87 contacts → | ||||
Exact match “Essco Calibration Laboratory provides calibration services for a wide variety of commercial test equipment.Capabilities include electronic, mechanical, fiber-optic…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 34 contacts → | ||||
Exact match “Electrical Test Instruments (ETI) is a leader in the calibration, repair, and sale of test and measurement equipment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 34 contacts → | ||||
Exact match “For over 35 years, MARS Company has proven itself in the waterworks industry as the leader in custom-designed and fabricated Water Meter Testing Systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 34 contacts → | ||||
Exact match “Davis Calibration is the leader in providing calibration, quality assurance, and asset management services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 32 contacts → | ||||
Exact match “Assurance Technologies, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 25 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 20 contacts → | ||||
Exact match “Colorado Engineering Experiment Station Inc.(CEESI) assists commercial and industrial clients by providing market-leading flow measurement and testing expertise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 17 contacts → | ||||
Exact match “American Gage is a leading metrology laboratory in Southern California serving the Life Science & Aerospace industry for over 50 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 15 contacts → | ||||
Exact match “Consumers and professionals alike recognize Taylor Technologies as the most trusted name in water testing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 14 contacts → | ||||
Exact match “LabtronX is a laboratory equipment calibration, maintenance, and repair company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 12 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 10 contacts → | ||||
Exact match “When it comes to meter proving, accuracy, and timely testing, Mission Measurements is your source!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 9 contacts → | ||||
Exact match “Instrumentation Technical Services (ITS) assists commercial and industrial clients by providing calibration services for precision equipment and flow instrumentation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 9 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 8 contacts → | ||||
Exact match “Founded in 1988, Southwest Calibration Service supports the test and measurement needs of manufacturers across energy, aerospace, pharmaceutical, industrial, and chemical…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 6 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 6 contacts → | ||||
Exact match “Our clients benefit from the peace of mind provided by Hydro Utilities’ 75+ years of combined experience in the water metering, construction, and services industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 5 contacts → | ||||
Exact match “We offer fast, courteous service and calibration for open-channel flow meters, wastewater samplers, most laboratory equipment and instrumentation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 4 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “The team at GPM Enterprises has over 140 years of experience providing our customers with Sales, Service and Testing of McCrometer Flow Meters.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match “Since 2013, FlowLab has been offering full-service, environmentally friendly calibration options to all Industries that use Fluid Flow Meters.*LYNX by FlowLab is a new…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 3 contacts → | ||||
Exact match “Gerand Engineering provides the highest quality products for fire pump testing and hydronic balancing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 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 “water meter testing 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 25 of 60 water meter testing contractors based in the United States
See the full list, filter by size, metro and specialty, and access 231 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Water meter testing contractors based in the United States at a glance
As of Nov 6, 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 60 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 “water meter testing 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 231 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “water meter testing contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many water meter testing contractors are there based in the United States?
RevenueBase identified 60 company matches for water meter testing contractors associated with the United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Standard Calibrations, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most water meter testing contractors?
Houston leads with 2 company records, followed by Signal Hill (2) and Aurora (1).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 231 professional contacts with verified work emails tracked across these 60 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 60 water meter testing contractors based in the United States. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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- New lists
- AI companies based in the United States
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Company intelligence · public preview
Top 25 water meter testing contractors 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 60 matching company records for water meter testing contractors based in the United States, with 577 tracked contacts and 231 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: November 6, 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 water meter testing contractors 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 |  Standard Calibrations, INCstandardcal.comHQ: Chesapeake, VA, United StatesReported employees: 51-200 | Chesapeake, VA, United States | 51-200 | Exact match | 100 contacts → |
“Every Measurement Matters.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Essco Calibration Laboratoryesscolab.comHQ: Chelmsford, MA, United StatesReported employees: 51-200 | Chelmsford, MA, United States | 51-200 | Exact match | 87 contacts → |
“Essco Calibration Laboratory provides calibration services for a wide variety of commercial test equipment.Capabilities include electronic, mechanical, fiber-optic…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  ETI Precisionetiprecision.comHQ: Frederick, MD, United StatesReported employees: 51-200 | Frederick, MD, United States | 51-200 | Exact match | 34 contacts → |
“Electrical Test Instruments (ETI) is a leader in the calibration, repair, and sale of test and measurement equipment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Mars Companymarswater.comHQ: Ocala, FL, United StatesReported employees: 11-50 | Ocala, FL, United States | 11-50 | Exact match | 34 contacts → |
“For over 35 years, MARS Company has proven itself in the waterworks industry as the leader in custom-designed and fabricated Water Meter Testing Systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Davis Calibrationdaviscalibration.comHQ: Baltimore, CA, United StatesReported employees: 201-500 | Baltimore, CA, United States | 201-500 | Exact match | 34 contacts → |
“Davis Calibration is the leader in providing calibration, quality assurance, and asset management services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Assurance Technologiesatiquality.comHQ: Elgin, IL, United StatesReported employees: 11-50 | Elgin, IL, United States | 11-50 | Exact match | 32 contacts → |
“Assurance Technologies, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Eastex Environmental Laboratory, INCeastexlabs.com HQ: Coldspring, TX, United StatesReported employees: 11-50 | Coldspring, TX, United States | 11-50 | Exact match | 25 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 | HQ: Nunn, CO, United StatesReported employees: 51-200 | Nunn, CO, United States | 51-200 | Exact match | 20 contacts → |
“Colorado Engineering Experiment Station Inc.(CEESI) assists commercial and industrial clients by providing market-leading flow measurement and testing expertise.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  American Gageamericangage.comHQ: Placentia, CA, United StatesReported employees: 11-50 | Placentia, CA, United States | 11-50 | Exact match | 17 contacts → |
“American Gage is a leading metrology laboratory in Southern California serving the Life Science & Aerospace industry for over 50 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Taylor Water Technologies LLCtaylortechnologies.com HQ: Sparks, MD, United StatesReported employees: 51-200 | Sparks, MD, United States | 51-200 | Exact match | 15 contacts → |
“Consumers and professionals alike recognize Taylor Technologies as the most trusted name in water testing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Labtronx, LLClabtronx.comHQ: Nashville, TN, United StatesReported employees: 11-50 | Nashville, TN, United States | 11-50 | Exact match | 14 contacts → |
“LabtronX is a laboratory equipment calibration, maintenance, and repair company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Kentrel Corpkentrel.com HQ: Pittston, PA, United StatesReported employees: 11-50 | Pittston, PA, United States | 11-50 | Exact match | 12 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 |  Mission Measurements, LLCmissionmeasurements.comHQ: Beeville, TX, United StatesReported employees: 11-50 | Beeville, TX, United States | 11-50 | Exact match | 10 contacts → |
“When it comes to meter proving, accuracy, and timely testing, Mission Measurements is your source!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Instrumentation Technical Servicescalservice.netHQ: West Chester, PA, United StatesReported employees: 11-50 | West Chester, PA, United States | 11-50 | Exact match | 9 contacts → |
“Instrumentation Technical Services (ITS) assists commercial and industrial clients by providing calibration services for precision equipment and flow instrumentation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Century Calibrating Companycenturycalibrating.com HQ: Signal Hill, CA, United StatesReported employees: 1-10 | Signal Hill, CA, United States | 1-10 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 |  Southwest Calibration Service, INCswcal.comHQ: Stafford, TX, United StatesReported employees: 11-50 | Stafford, TX, United States | 11-50 | Exact match | 8 contacts → |
“Founded in 1988, Southwest Calibration Service supports the test and measurement needs of manufacturers across energy, aerospace, pharmaceutical, industrial, and chemical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Metering Services INCmsiaz.net HQ: Tempe, AZ, United StatesReported employees: 11-50 | Tempe, AZ, United States | 11-50 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 |  Hydro Utilitieshydroutilities.comHQ: Westford, MA, United StatesReported employees: 1-10 | Westford, MA, United States | 1-10 | Exact match | 6 contacts → |
“Our clients benefit from the peace of mind provided by Hydro Utilities’ 75+ years of combined experience in the water metering, construction, and services industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Laboratory Instrument Servicelab-serve.comHQ: Landrum, SC, United StatesReported employees: 1-10 | Landrum, SC, United States | 1-10 | Exact match | 5 contacts → |
“We offer fast, courteous service and calibration for open-channel flow meters, wastewater samplers, most laboratory equipment and instrumentation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Atlas Backflowatlasbackflow.com HQ: Signal Hill, CA, United StatesReported employees: 1-10 | Signal Hill, CA, United States | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 |  GPM Enterprises, INCgpmmeters.comHQ: Aurora, NE, United StatesReported employees: 1-10 | Aurora, NE, United States | 1-10 | Exact match | 3 contacts → |
“The team at GPM Enterprises has over 140 years of experience providing our customers with Sales, Service and Testing of McCrometer Flow Meters.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Flowlabflowlabusa.comHQ: Baton Rouge, LA, United StatesReported employees: 1-10 | Baton Rouge, LA, United States | 1-10 | Exact match | 3 contacts → |
“Since 2013, FlowLab has been offering full-service, environmentally friendly calibration options to all Industries that use Fluid Flow Meters.*LYNX by FlowLab is a new…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Gerand Engineeringgerand.comHQ: Hopkins, MN, United StatesReported employees: 11-50 | Hopkins, MN, United States | 11-50 | Exact match | 3 contacts → |
“Gerand Engineering provides the highest quality products for fire pump testing and hydronic balancing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Caltronix, INCcaltronixinc.com HQ: Rochester, NY, United StatesReported employees: 11-50 | Rochester, NY, United States | 11-50 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Precision Meter Repair, INCprecisionmeterrepair.com HQ: Plant City, FL, United StatesReported employees: 1-10 | Plant City, FL, United States | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 60 company matches
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Water meter testing contractors: dataset insights
November 6, 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
60 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 60 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: November 6, 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 water meter testing 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 water meter testing contractors did RevenueBase find based in the United States?
The saved snapshot records 60 matching company records, 577 tracked contacts and 231 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: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 25 water meter testing contractors based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/water-meter-testing-contractors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
- Utilities based in the United States
Company intelligence · public preview
Top 25 water meter testing contractors based in the United States
RevenueBase records 60 matching company records for water meter testing contractors based in the United States, with 577 tracked contacts and 231 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: November 6, 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 water meter testing contractors 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 | Standard Calibrations, INCstandardcal.com HQ: Chesapeake, VA, United StatesReported employees: 51-200 | Chesapeake, VA, United States | 51-200 | Exact match | 100 contacts → |
“Every Measurement Matters.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Essco Calibration Laboratoryesscolab.com HQ: Chelmsford, MA, United StatesReported employees: 51-200 | Chelmsford, MA, United States | 51-200 | Exact match | 87 contacts → |
“Essco Calibration Laboratory provides calibration services for a wide variety of commercial test equipment.Capabilities include electronic, mechanical, fiber-optic…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | ETI Precisionetiprecision.com HQ: Frederick, MD, United StatesReported employees: 51-200 | Frederick, MD, United States | 51-200 | Exact match | 34 contacts → |
“Electrical Test Instruments (ETI) is a leader in the calibration, repair, and sale of test and measurement equipment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Mars Companymarswater.com HQ: Ocala, FL, United StatesReported employees: 11-50 | Ocala, FL, United States | 11-50 | Exact match | 34 contacts → |
“For over 35 years, MARS Company has proven itself in the waterworks industry as the leader in custom-designed and fabricated Water Meter Testing Systems.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Davis Calibrationdaviscalibration.com HQ: Baltimore, CA, United StatesReported employees: 201-500 | Baltimore, CA, United States | 201-500 | Exact match | 34 contacts → |
“Davis Calibration is the leader in providing calibration, quality assurance, and asset management services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Assurance Technologiesatiquality.com HQ: Elgin, IL, United StatesReported employees: 11-50 | Elgin, IL, United States | 11-50 | Exact match | 32 contacts → |
“Assurance Technologies, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Eastex Environmental Laboratory, INCeastexlabs.com HQ: Coldspring, TX, United StatesReported employees: 11-50 | Coldspring, TX, United States | 11-50 | Exact match | 25 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 8 | HQ: Nunn, CO, United StatesReported employees: 51-200 | Nunn, CO, United States | 51-200 | Exact match | 20 contacts → |
“Colorado Engineering Experiment Station Inc.(CEESI) assists commercial and industrial clients by providing market-leading flow measurement and testing expertise.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | American Gageamericangage.com HQ: Placentia, CA, United StatesReported employees: 11-50 | Placentia, CA, United States | 11-50 | Exact match | 17 contacts → |
“American Gage is a leading metrology laboratory in Southern California serving the Life Science & Aerospace industry for over 50 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Taylor Water Technologies LLCtaylortechnologies.com HQ: Sparks, MD, United StatesReported employees: 51-200 | Sparks, MD, United States | 51-200 | Exact match | 15 contacts → |
“Consumers and professionals alike recognize Taylor Technologies as the most trusted name in water testing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Labtronx, LLClabtronx.com HQ: Nashville, TN, United StatesReported employees: 11-50 | Nashville, TN, United States | 11-50 | Exact match | 14 contacts → |
“LabtronX is a laboratory equipment calibration, maintenance, and repair company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Kentrel Corpkentrel.com HQ: Pittston, PA, United StatesReported employees: 11-50 | Pittston, PA, United States | 11-50 | Exact match | 12 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Mission Measurements, LLCmissionmeasurements.com HQ: Beeville, TX, United StatesReported employees: 11-50 | Beeville, TX, United States | 11-50 | Exact match | 10 contacts → |
“When it comes to meter proving, accuracy, and timely testing, Mission Measurements is your source!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Instrumentation Technical Servicescalservice.net HQ: West Chester, PA, United StatesReported employees: 11-50 | West Chester, PA, United States | 11-50 | Exact match | 9 contacts → |
“Instrumentation Technical Services (ITS) assists commercial and industrial clients by providing calibration services for precision equipment and flow instrumentation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Century Calibrating Companycenturycalibrating.com HQ: Signal Hill, CA, United StatesReported employees: 1-10 | Signal Hill, CA, United States | 1-10 | Exact match | 9 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | Southwest Calibration Service, INCswcal.com HQ: Stafford, TX, United StatesReported employees: 11-50 | Stafford, TX, United States | 11-50 | Exact match | 8 contacts → |
“Founded in 1988, Southwest Calibration Service supports the test and measurement needs of manufacturers across energy, aerospace, pharmaceutical, industrial, and chemical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Metering Services INCmsiaz.net HQ: Tempe, AZ, United StatesReported employees: 11-50 | Tempe, AZ, United States | 11-50 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | Hydro Utilitieshydroutilities.com HQ: Westford, MA, United StatesReported employees: 1-10 | Westford, MA, United States | 1-10 | Exact match | 6 contacts → |
“Our clients benefit from the peace of mind provided by Hydro Utilities’ 75+ years of combined experience in the water metering, construction, and services industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Laboratory Instrument Servicelab-serve.com HQ: Landrum, SC, United StatesReported employees: 1-10 | Landrum, SC, United States | 1-10 | Exact match | 5 contacts → |
“We offer fast, courteous service and calibration for open-channel flow meters, wastewater samplers, most laboratory equipment and instrumentation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Atlas Backflowatlasbackflow.com HQ: Signal Hill, CA, United StatesReported employees: 1-10 | Signal Hill, CA, United States | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | GPM Enterprises, INCgpmmeters.com HQ: Aurora, NE, United StatesReported employees: 1-10 | Aurora, NE, United States | 1-10 | Exact match | 3 contacts → |
“The team at GPM Enterprises has over 140 years of experience providing our customers with Sales, Service and Testing of McCrometer Flow Meters.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Flowlabflowlabusa.com HQ: Baton Rouge, LA, United StatesReported employees: 1-10 | Baton Rouge, LA, United States | 1-10 | Exact match | 3 contacts → |
“Since 2013, FlowLab has been offering full-service, environmentally friendly calibration options to all Industries that use Fluid Flow Meters.*LYNX by FlowLab is a new…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Gerand Engineeringgerand.com HQ: Hopkins, MN, United StatesReported employees: 11-50 | Hopkins, MN, United States | 11-50 | Exact match | 3 contacts → |
“Gerand Engineering provides the highest quality products for fire pump testing and hydronic balancing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Caltronix, INCcaltronixinc.com HQ: Rochester, NY, United StatesReported employees: 11-50 | Rochester, NY, United States | 11-50 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Precision Meter Repair, INCprecisionmeterrepair.com HQ: Plant City, FL, United StatesReported employees: 1-10 | Plant City, FL, United States | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 60 company matches
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Water meter testing contractors: dataset insights
November 6, 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
60 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 60 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: November 6, 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 water meter testing 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 water meter testing contractors did RevenueBase find based in the United States?
The saved snapshot records 60 matching company records, 577 tracked contacts and 231 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: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 25 water meter testing contractors based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/water-meter-testing-contractors/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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