Company lists · Data refreshed November 2026

Top 25 Ph probe calibration services based in the United States

RevenueBase identified 81 company matches for ph probe calibration services associated with the United States as of November 2026 and tracks 736 professional contacts across them, including 262 with verified work emails. Hialeah is the largest hub.

This list covers company matches for ph probe 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 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
81Companies
736Contacts tracked
262Verified emails
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The 25 largest ph probe calibration services based in the United States

Ranked by team size
Top 25 of 81 company matches for ph probe calibration services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchChesapeake, VA, United StatesHQ recorded Nov 6, 202651-200100 contacts →

Exact match

“Every Measurement Matters.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchChelmsford, MA, United StatesHQ recorded Nov 6, 202651-20087 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
3Exact matchIrving, TX, United StatesHQ recorded Nov 6, 2026501-1,00066 contacts →

Exact match

“Your Premier Partner in Calibration Accredited Labs is a network of top-tier calibration companies united by one mission: to keep our customers audit-ready and in control of their…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBaltimore, CA, United StatesHQ recorded Nov 6, 2026201-50034 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
5Exact matchLititz, PA, United StatesHQ recorded Nov 6, 202611-5030 contacts →

Exact match

“Garber Metrology is a family owned business and has earned the Pennsylvania “Best Place to Work” title.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchMilford, MA, United StatesHQ recorded Nov 6, 202651-20025 contacts →

Exact match

“Transcat Pipettes is a trusted, single-source provider of accredited pipette calibration services and distributor of high-quality pipette supplies to scientific research…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchPlacentia, CA, United StatesHQ recorded Nov 6, 202611-5017 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
8Exact matchPalmdale, CA, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“Precision Labs is a calibration service company operating in a accredited ISO 17025 quality environment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBillerica, MA, United StatesHQ recorded Nov 6, 202611-5013 contacts →

Exact match

“We shall provide superior calibration and repair services while continuously improving customer service and excellence in quality and reliability.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSewell, NJ, United StatesHQ recorded Nov 6, 202611-5012 contacts →

Exact match

“With over 25 years of experience with large-cap pharmaceutical companies, biomedical laboratories and clinical and R&D labs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“THERMO-TEMP, INCORPORATED is YOUR CALIBRATION RESOURCE!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBlaine, MN, United StatesHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Coast To Coast Calibrations is a full-service company specializing in calibration services on-site or in-house.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLivermore, CA, United StatesHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“For 50 years, we have provided comprehensive calibration services across the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSomerset, NJ, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Femto Scientific, where science is life and service is first, provides calibration expertise and lab products to Fortune 500 Pharmaceutical Companies, Biotech Companies, Research…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSouth Windsor, CT, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“At Holts Precision, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPleasanton, CA, United StatesHQ recorded Nov 6, 20261-109 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchGarland, TX, United StatesHQ recorded Nov 6, 202611-508 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 · Nov 6, 2026 · View company records in RevenueBase
18Exact matchDallas, FL, United StatesHQ recorded Nov 6, 202651-2008 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 · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMorristown, TN, United StatesHQ recorded Nov 6, 202611-507 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 · Nov 6, 2026 · View company records in RevenueBase
20Exact matchState College, PA, United StatesHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Calyx helps HTM’s improve the quality of patient care, reduce risks and contain the cost of healthcare.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Joint Matters Calibration Services is an ISO/IEC 17025:2017 accredited laboratory.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBrea, CA, United StatesHQ recorded Nov 6, 202611-506 contacts →

Exact match

“Established in 1982, Precision Instrument Correction is a respected leader in the calibration industry throughout the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBensenville, IL, United StatesHQ recorded Nov 6, 20261-106 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSan Carlos, CA, United StatesHQ recorded Nov 6, 202611-505 contacts →

Exact match

“The founders of IPS came from the pharma and biotech industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHialeah, FL, United StatesHQ recorded Nov 6, 20261-105 contacts →

Exact match

“Calibration laboratory, Metrology services, ISO 17025 Accredited.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 81 ph probe calibration services based in the United States

See the full list, filter by size, metro and specialty, and access 262 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Ph probe calibration services based in the United States at a glance

As of Nov 6, 2026
35.6%Verified-email coverage
9.1Average contacts per company
11-50Median size (employees)
3.7%Largest-city concentration · Hialeah
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
34
11-50
38
51-200
7
201-500
1
501-1,000
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 81 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 “ph probe 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 262 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 “ph probe calibration services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many ph probe calibration services are there based in the United States?

RevenueBase identified 81 company matches for ph probe calibration services 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 ph probe calibration services?

Hialeah leads with 3 company records, followed by Houston (3) and Blaine (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 262 professional contacts with verified work emails tracked across these 81 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.

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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.