Company lists · Data refreshed October 2026
Top 25 National voluntary laboratory accreditation program (nvlap) calibration services based in the United States
RevenueBase identified 79 company matches for national voluntary laboratory accreditation program (nvlap) calibration services associated with the United States as of October 2026 and tracks 767 professional contacts across them, including 197 with verified work emails. Anaheim is the largest hub.
This list covers company matches for national voluntary laboratory accreditation program (nvlap) calibration services 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 October 28, 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 national voluntary laboratory accreditation program (nvlap) calibration services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 112 contacts → | ||||
Exact match “Who is TMI?” Recorded in the RevenueBase company graph · Oct 28, 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 · Oct 28, 2026 · View company records in RevenueBase | |||||
| 3 | 68 contacts → | ||||
Exact match “Techmaster was established in 1989 with the mission to provide calibrations performed through sound, ethical workmanship and to accommodate customer satisfaction.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 4 | 16 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 · Oct 28, 2026 · View company records in RevenueBase | |||||
| 5 | 16 contacts → | ||||
Exact match “Alliance Calibration is centrally located in Cincinnati, Ohio.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 6 | 13 contacts → | ||||
Exact match “ACR Technical Services has provided high end ISO 17025 calibration and environmental chamber repair services since 1993 in our state of the art metrology laboratory with over…” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 7 | 8 contacts → | ||||
Exact match “JGI specializes in providing quality calibration, certification and inspection services including dimensional metrology, electrical calibration, pyrometry and more.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 8 | 8 contacts → | ||||
Exact match “At Holts Precision, Inc.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 9 | 8 contacts → | ||||
Exact match “KELI Labs is a trusted calibration partner for some of the world’s leading organizations across aviation, aerospace, defense, and manufacturing.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 10 | 7 contacts → | ||||
Exact match “Accura Calibration is a service-oriented calibration lab specializing in a wide range of measurement and test equipment.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 11 | 7 contacts → | ||||
Exact match “Precision Calibration Systems "PCS" is a full service ISO/IEC 17025 Accredited calibration laboratory located in Morristown,Tennessee.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 12 | 7 contacts → | ||||
Exact match “Calibration Management Our Calibration Management Programs Include: • New state of the art cal lab.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 13 | 7 contacts → | ||||
Exact match “Joint Matters Calibration Services is an ISO/IEC 17025:2017 accredited laboratory.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 14 | 7 contacts → | ||||
Exact match “L.A.W.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 15 | 6 contacts → | ||||
Exact match “PMC is an ISO/IEC 17025 accredited calibration laboratory offering onsite services to a wide variety of industries.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 16 | 6 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 17 | 6 contacts → | ||||
Exact match “Instrument Calibration and Technical Services, Inc.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 18 | 6 contacts → | ||||
Exact match “Serving as an asset to countless businesses in a variety of industries, Tru Cal International has specialized in test equipment calibration since 1992.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 19 | 6 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 20 | 5 contacts → | ||||
Exact match “ISO 17025 Accredited Calibration Laboratory.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 21 | 5 contacts → | ||||
Exact match “Calibration laboratory, Metrology services, ISO 17025 Accredited.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 22 | 4 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 · Oct 28, 2026 · View company records in RevenueBase | |||||
| 23 | 4 contacts → | ||||
Exact match “We are ISO-17025 accredited and licensed to work in all the states we operate in.” Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 24 | 4 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 28, 2026 · View company records in RevenueBase | |||||
| 25 | 4 contacts → | ||||
Exact match “At MDI Calibration, we provide accredited calibration services focused on accuracy, reliability, and fast turnaround.” Recorded in the RevenueBase company graph · Oct 28, 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 “national voluntary laboratory accreditation program (nvlap) calibration services”. 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 79 national voluntary laboratory accreditation program (nvlap) calibration services based in the United States
See the full list, filter by size, metro and specialty, and access 197 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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National voluntary laboratory accreditation program (nvlap) calibration services based in the United States at a glance
As of Oct 28, 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 79 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 “national voluntary laboratory accreditation program (nvlap) calibration services” 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 197 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 28, 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 “national voluntary laboratory accreditation program (nvlap) calibration services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many national voluntary laboratory accreditation program (nvlap) calibration services are there based in the United States?
RevenueBase identified 79 company matches for national voluntary laboratory accreditation program (nvlap) calibration services associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Technical Maintenance, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most national voluntary laboratory accreditation program (nvlap) calibration services?
Anaheim leads with 2 company records, followed by Chatsworth (2) and Hialeah (2).
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 197 professional contacts with verified work emails tracked across these 79 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 79 national voluntary laboratory accreditation program (nvlap) calibration services based in the United States. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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Company intelligence · public preview
Top 25 national voluntary laboratory accreditation program (nvlap) calibration services 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 79 matching company records for national voluntary laboratory accreditation program (nvlap) calibration services based in the United States, with 767 tracked contacts and 197 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: October 28, 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 national voluntary laboratory accreditation program (nvlap) calibration services 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 |  Technical Maintenance, INCtmicalibration.comHQ: Temple Terrace, GA, United StatesReported employees: 51-200 | Temple Terrace, GA, United States | 51-200 | Exact match | 112 contacts → |
“Who is TMI?” Recorded description excerpt · October 28, 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Techmaster Electronicstechmaster.us HQ: Vista, CA, United StatesReported employees: 11-50 | Vista, CA, United States | 11-50 | Exact match | 68 contacts → |
“Techmaster was established in 1989 with the mission to provide calibrations performed through sound, ethical workmanship and to accommodate customer satisfaction.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  American Gageamericangage.comHQ: Placentia, CA, United StatesReported employees: 11-50 | Placentia, CA, United States | 11-50 | Exact match | 16 contacts → |
“American Gage is a leading metrology laboratory in Southern California serving the Life Science & Aerospace industry for over 50 years.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Alliance Calibrationalliancecalibration.comHQ: Cincinnati, OH, United StatesReported employees: 11-50 | Cincinnati, OH, United States | 11-50 | Exact match | 16 contacts → |
“Alliance Calibration is centrally located in Cincinnati, Ohio.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  ACR Technical Servicesacrcorp.netHQ: Newport News, VA, United StatesReported employees: 11-50 | Newport News, VA, United States | 11-50 | Exact match | 13 contacts → |
“ACR Technical Services has provided high end ISO 17025 calibration and environmental chamber repair services since 1993 in our state of the art metrology laboratory with over…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Johnson Gage And Inspection, INCjgiquality.com HQ: Wichita, KS, United StatesReported employees: 11-50 | Wichita, KS, United States | 11-50 | Exact match | 8 contacts → |
“JGI specializes in providing quality calibration, certification and inspection services including dimensional metrology, electrical calibration, pyrometry and more.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Holts Precision, INCholtsprecision.com HQ: South Windsor, CT, United StatesReported employees: 11-50 | South Windsor, CT, United States | 11-50 | Exact match | 8 contacts → |
“At Holts Precision, Inc.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Keli Labskelilabs.com HQ: Dallas, TX, United StatesReported employees: 51-200 | Dallas, TX, United States | 51-200 | Exact match | 8 contacts → |
“KELI Labs is a trusted calibration partner for some of the world’s leading organizations across aviation, aerospace, defense, and manufacturing.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Accura Calibrationaccuracal.com HQ: Garland, TX, United StatesReported employees: 11-50 | Garland, TX, United States | 11-50 | Exact match | 7 contacts → |
“Accura Calibration is a service-oriented calibration lab specializing in a wide range of measurement and test equipment.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Precision Calibration Systems, LLCpcsllctn.com HQ: Morristown, TN, United StatesReported employees: 11-50 | Morristown, TN, United States | 11-50 | Exact match | 7 contacts → |
“Precision Calibration Systems "PCS" is a full service ISO/IEC 17025 Accredited calibration laboratory located in Morristown,Tennessee.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | RMS Quality Services, INC Division Of Martin Calibrationrmsqualityservices.com HQ: Sturtevant, WI, United StatesReported employees: 11-50 | Sturtevant, WI, United States | 11-50 | Exact match | 7 contacts → |
“Calibration Management Our Calibration Management Programs Include: • New state of the art cal lab.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Joint Matters Calibration Servicesjointmatters.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 7 contacts → |
“Joint Matters Calibration Services is an ISO/IEC 17025:2017 accredited laboratory.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | LAW Calibration LLClawcalibration.com HQ: Saco, ME, United StatesReported employees: 11-50 | Saco, ME, United States | 11-50 | Exact match | 7 contacts → |
“L.A.W.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Process Measurement Company - PMCprocessmeasurementco.com HQ: Minneapolis, MN, United StatesReported employees: 11-50 | Minneapolis, MN, United States | 11-50 | Exact match | 6 contacts → |
“PMC is an ISO/IEC 17025 accredited calibration laboratory offering onsite services to a wide variety of industries.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Total Calibration Solutions INCtotalcal.com HQ: Mentor, OH, United StatesReported employees: 1-10 | Mentor, OH, United States | 1-10 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 | HQ: Roanoke, VA, United StatesReported employees: 11-50 | Roanoke, VA, United States | 11-50 | Exact match | 6 contacts → |
“Instrument Calibration and Technical Services, Inc.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | TRU CAL International INCtrucal.com HQ: Bensenville, IL, United StatesReported employees: 1-10 | Bensenville, IL, United States | 1-10 | Exact match | 6 contacts → |
“Serving as an asset to countless businesses in a variety of industries, Tru Cal International has specialized in test equipment calibration since 1992.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Wintronicswintron.com HQ: Millington, NJ, United StatesReported employees: 11-50 | Millington, NJ, United States | 11-50 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | AVC Laboratory, INCavclaboratory.com HQ: Miami Gardens, FL, United StatesReported employees: 11-50 | Miami Gardens, FL, United States | 11-50 | Exact match | 5 contacts → |
“ISO 17025 Accredited Calibration Laboratory.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | R&r Instruments Calibration&repairrr-instruments.com HQ: Hialeah, FL, United StatesReported employees: 1-10 | Hialeah, FL, United States | 1-10 | Exact match | 5 contacts → |
“Calibration laboratory, Metrology services, ISO 17025 Accredited.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Southwest Calibration Service, INCswcal.com HQ: Stafford, TX, United StatesReported employees: 11-50 | Stafford, TX, United States | 11-50 | Exact match | 4 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Utah Scale Centerutahscalecenter.com HQ: Sandy, UT, United StatesReported employees: 11-50 | Sandy, UT, United States | 11-50 | Exact match | 4 contacts → |
“We are ISO-17025 accredited and licensed to work in all the states we operate in.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Pyrometer Equipment INCpyrometerequipment.com HQ: Kearny, NJ, United StatesReported employees: 1-10 | Kearny, NJ, United States | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | MDI Calibrationmdicalibration.com HQ: Hialeah, FL, United StatesReported employees: 1-10 | Hialeah, FL, United States | 1-10 | Exact match | 4 contacts → |
“At MDI Calibration, we provide accredited calibration services focused on accuracy, reliability, and fast turnaround.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 79 company matches
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National voluntary laboratory accreditation program (nvlap) calibration services: dataset insights
October 28, 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
79 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 79 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 28, 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 national voluntary laboratory accreditation program (nvlap) calibration services?
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 national voluntary laboratory accreditation program (nvlap) calibration services did RevenueBase find based in the United States?
The saved snapshot records 79 matching company records, 767 tracked contacts and 197 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: October 28, 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 national voluntary laboratory accreditation program (nvlap) calibration services based in the United States. Snapshot: October 28, 2026. https://revenuebase.ai/companies/national-voluntary-laboratory-accreditation-program-nvlap-calibration-services/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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Company intelligence · public preview
Top 25 national voluntary laboratory accreditation program (nvlap) calibration services based in the United States
RevenueBase records 79 matching company records for national voluntary laboratory accreditation program (nvlap) calibration services based in the United States, with 767 tracked contacts and 197 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: October 28, 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 national voluntary laboratory accreditation program (nvlap) calibration services 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 | Technical Maintenance, INCtmicalibration.com HQ: Temple Terrace, GA, United StatesReported employees: 51-200 | Temple Terrace, GA, United States | 51-200 | Exact match | 112 contacts → |
“Who is TMI?” Recorded description excerpt · October 28, 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Techmaster Electronicstechmaster.us HQ: Vista, CA, United StatesReported employees: 11-50 | Vista, CA, United States | 11-50 | Exact match | 68 contacts → |
“Techmaster was established in 1989 with the mission to provide calibrations performed through sound, ethical workmanship and to accommodate customer satisfaction.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | American Gageamericangage.com HQ: Placentia, CA, United StatesReported employees: 11-50 | Placentia, CA, United States | 11-50 | Exact match | 16 contacts → |
“American Gage is a leading metrology laboratory in Southern California serving the Life Science & Aerospace industry for over 50 years.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Alliance Calibrationalliancecalibration.com HQ: Cincinnati, OH, United StatesReported employees: 11-50 | Cincinnati, OH, United States | 11-50 | Exact match | 16 contacts → |
“Alliance Calibration is centrally located in Cincinnati, Ohio.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | ACR Technical Servicesacrcorp.net HQ: Newport News, VA, United StatesReported employees: 11-50 | Newport News, VA, United States | 11-50 | Exact match | 13 contacts → |
“ACR Technical Services has provided high end ISO 17025 calibration and environmental chamber repair services since 1993 in our state of the art metrology laboratory with over…” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Johnson Gage And Inspection, INCjgiquality.com HQ: Wichita, KS, United StatesReported employees: 11-50 | Wichita, KS, United States | 11-50 | Exact match | 8 contacts → |
“JGI specializes in providing quality calibration, certification and inspection services including dimensional metrology, electrical calibration, pyrometry and more.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Holts Precision, INCholtsprecision.com HQ: South Windsor, CT, United StatesReported employees: 11-50 | South Windsor, CT, United States | 11-50 | Exact match | 8 contacts → |
“At Holts Precision, Inc.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Keli Labskelilabs.com HQ: Dallas, TX, United StatesReported employees: 51-200 | Dallas, TX, United States | 51-200 | Exact match | 8 contacts → |
“KELI Labs is a trusted calibration partner for some of the world’s leading organizations across aviation, aerospace, defense, and manufacturing.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Accura Calibrationaccuracal.com HQ: Garland, TX, United StatesReported employees: 11-50 | Garland, TX, United States | 11-50 | Exact match | 7 contacts → |
“Accura Calibration is a service-oriented calibration lab specializing in a wide range of measurement and test equipment.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Precision Calibration Systems, LLCpcsllctn.com HQ: Morristown, TN, United StatesReported employees: 11-50 | Morristown, TN, United States | 11-50 | Exact match | 7 contacts → |
“Precision Calibration Systems "PCS" is a full service ISO/IEC 17025 Accredited calibration laboratory located in Morristown,Tennessee.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | RMS Quality Services, INC Division Of Martin Calibrationrmsqualityservices.com HQ: Sturtevant, WI, United StatesReported employees: 11-50 | Sturtevant, WI, United States | 11-50 | Exact match | 7 contacts → |
“Calibration Management Our Calibration Management Programs Include: • New state of the art cal lab.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Joint Matters Calibration Servicesjointmatters.com HQ: Los Angeles, CA, United StatesReported employees: 1-10 | Los Angeles, CA, United States | 1-10 | Exact match | 7 contacts → |
“Joint Matters Calibration Services is an ISO/IEC 17025:2017 accredited laboratory.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | LAW Calibration LLClawcalibration.com HQ: Saco, ME, United StatesReported employees: 11-50 | Saco, ME, United States | 11-50 | Exact match | 7 contacts → |
“L.A.W.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Process Measurement Company - PMCprocessmeasurementco.com HQ: Minneapolis, MN, United StatesReported employees: 11-50 | Minneapolis, MN, United States | 11-50 | Exact match | 6 contacts → |
“PMC is an ISO/IEC 17025 accredited calibration laboratory offering onsite services to a wide variety of industries.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Total Calibration Solutions INCtotalcal.com HQ: Mentor, OH, United StatesReported employees: 1-10 | Mentor, OH, United States | 1-10 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 | HQ: Roanoke, VA, United StatesReported employees: 11-50 | Roanoke, VA, United States | 11-50 | Exact match | 6 contacts → |
“Instrument Calibration and Technical Services, Inc.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | TRU CAL International INCtrucal.com HQ: Bensenville, IL, United StatesReported employees: 1-10 | Bensenville, IL, United States | 1-10 | Exact match | 6 contacts → |
“Serving as an asset to countless businesses in a variety of industries, Tru Cal International has specialized in test equipment calibration since 1992.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Wintronicswintron.com HQ: Millington, NJ, United StatesReported employees: 11-50 | Millington, NJ, United States | 11-50 | Exact match | 6 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | AVC Laboratory, INCavclaboratory.com HQ: Miami Gardens, FL, United StatesReported employees: 11-50 | Miami Gardens, FL, United States | 11-50 | Exact match | 5 contacts → |
“ISO 17025 Accredited Calibration Laboratory.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | R&r Instruments Calibration&repairrr-instruments.com HQ: Hialeah, FL, United StatesReported employees: 1-10 | Hialeah, FL, United States | 1-10 | Exact match | 5 contacts → |
“Calibration laboratory, Metrology services, ISO 17025 Accredited.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Southwest Calibration Service, INCswcal.com HQ: Stafford, TX, United StatesReported employees: 11-50 | Stafford, TX, United States | 11-50 | Exact match | 4 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 · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Utah Scale Centerutahscalecenter.com HQ: Sandy, UT, United StatesReported employees: 11-50 | Sandy, UT, United States | 11-50 | Exact match | 4 contacts → |
“We are ISO-17025 accredited and licensed to work in all the states we operate in.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Pyrometer Equipment INCpyrometerequipment.com HQ: Kearny, NJ, United StatesReported employees: 1-10 | Kearny, NJ, United States | 1-10 | Exact match | 4 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | MDI Calibrationmdicalibration.com HQ: Hialeah, FL, United StatesReported employees: 1-10 | Hialeah, FL, United States | 1-10 | Exact match | 4 contacts → |
“At MDI Calibration, we provide accredited calibration services focused on accuracy, reliability, and fast turnaround.” Recorded description excerpt · October 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 79 company matches
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National voluntary laboratory accreditation program (nvlap) calibration services: dataset insights
October 28, 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
79 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 79 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 28, 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 national voluntary laboratory accreditation program (nvlap) calibration services?
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 national voluntary laboratory accreditation program (nvlap) calibration services did RevenueBase find based in the United States?
The saved snapshot records 79 matching company records, 767 tracked contacts and 197 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: October 28, 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 national voluntary laboratory accreditation program (nvlap) calibration services based in the United States. Snapshot: October 28, 2026. https://revenuebase.ai/companies/national-voluntary-laboratory-accreditation-program-nvlap-calibration-services/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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