Company lists · Data refreshed September 2026

Top 25 Calibration service providers based in the United States

Name: Calibration service providers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 547 companies tracked

RevenueBase identified 547 company matches for calibration service providers associated with the United States as of September 2026 and tracks 8,571 professional contacts across them, including 3,704 with verified work emails. Houston is the largest hub.

This list covers company matches for calibration service providers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 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 Sep 19, 2026 How this list was built

547Companies

8,571Contacts tracked

3,704Verified emails

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The 25 largest calibration service providers based in the United States

Ranked by team size

Top 25 of 547 company matches for calibration service providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Applied Technical Services, LLC	Exact match	Marietta, GA, United StatesHQ recorded Sep 19, 2026	1,001-5,000	890 contacts →
	Exact match “Applied Technical Services assists commercial and industrial clients by providing inspection, testing, consulting engineering, and calibration services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Transcat	Exact match	Rochester, NY, United StatesHQ recorded Sep 19, 2026	501-1,000	673 contacts →
	Exact match “At Transcat, we are the global leader in test and measurement equipment and calibration services for highly technical industries, including life sciences, power generation…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Micro Precision Calibration	Exact match	Grass Valley, CA, United StatesHQ recorded Sep 19, 2026	201-500	480 contacts →
	Exact match “Micro Precision Calibration is a global leader offering customers around the world an easy path to instrument calibration services, standards compliance testing, equipment repair…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Mitutoyo America Corporation	Exact match	Aurora, IL, United StatesHQ recorded Sep 19, 2026	201-500	435 contacts →
	Exact match “The world’s largest metrology company was founded in 1934 by Yehan Numata with one product – the micrometer.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Simco Electronics	Exact match	Santa Clara, CA, United StatesHQ recorded Sep 19, 2026	201-500	391 contacts →
	Exact match “SIMCO Electronics is a leading provider of calibration, repair, and software services for manufacturing, life science, and technology organizations.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Technical Safety Services	Exact match	San Diego, CA, United StatesHQ recorded Sep 19, 2026	501-1,000	386 contacts →
	Exact match “Technical Safety Services is a leading compliance, calibration and certification service provider for laboratories, hospitals, and pharmacies with locations across the United…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	PCI	Exact match	Raleigh, NC, United StatesHQ recorded Sep 19, 2026	51-200	198 contacts →
	Exact match “PCI provides calibration, commissioning, and consulting solutions for the life sciences industry.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	MSI Viking	Exact match	Greer, SC, United StatesHQ recorded Sep 19, 2026	51-200	144 contacts →
	Exact match “MSI-Viking Gage is a leading supplier of precision measuring technologies representing the world's leading metrology and automation suppliers - including Hexagon, Mitutoyo…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	FOX Valley Metrology	Exact match	Oshkosh, WI, United StatesHQ recorded Sep 19, 2026	51-200	127 contacts →
	Exact match “Fox Valley Metrology is a partner to the Quality Assurance Departments of thousands of organizations worldwide.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Rothe Development INC	Exact match	Webster, TX, United StatesHQ recorded Sep 19, 2026	201-500	127 contacts →
	Exact match “Since 1967, Rothe has delivered precision-driven solutions in calibration & metrology, engineering, and IT services to a wide range of commercial and industrial sectors.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Technical Maintenance, INC	Exact match	Temple Terrace, GA, United StatesHQ recorded Sep 19, 2026	51-200	111 contacts →
	Exact match “Who is TMI?” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	System Scale Corporation	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 19, 2026	51-200	105 contacts →
	Exact match “System Scale is an industrial weighing and calibration company built for facilities that cannot afford inaccurate measurements, unplanned downtime, or audit failures.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Standard Calibrations, INC	Exact match	Chesapeake, VA, United StatesHQ recorded Sep 19, 2026	51-200	95 contacts →
	Exact match “Every Measurement Matters.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Radian Research, INC	Exact match	Lafayette, IN, United StatesHQ recorded Sep 19, 2026	201-500	93 contacts →
	Exact match “Radian Research Company Overview Radian Research is a recognized world leader in Energy Reference Standards, Energy Meter Testing Systems, Current Transformer Testers, Meter Test…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Technical Diagnostic Services	Exact match	Fort Worth, TX, United StatesHQ recorded Sep 19, 2026	201-500	91 contacts →
	Exact match “For over 25 years, Sentinel-TDS, based in Dallas/Ft.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Troemner, LLC	Exact match	Thorofare, NJ, United StatesHQ recorded Sep 19, 2026	51-200	89 contacts →
	Exact match “The Troemner Advantage: Troemner is the world's leading supplier of precision weights and mass calibration standards.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Essco Calibration Laboratory	Exact match	Chelmsford, MA, United StatesHQ recorded Sep 19, 2026	51-200	80 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 · Sep 19, 2026 · View company records in RevenueBase
18	Techmaster Electronics	Exact match	Vista, CA, United StatesHQ recorded Sep 19, 2026	11-50	67 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 · Sep 19, 2026 · View company records in RevenueBase
19	GR Metrology	Exact match	Grand Rapids, MI, United StatesHQ recorded Sep 19, 2026	51-200	60 contacts →
	Exact match “Established in 1922, our core business has focused on providing our customers with prompt, professional, and precise Industrial Measurement Solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Precision Diagnostics	Exact match	Madison, WI, United StatesHQ recorded Sep 19, 2026	201-500	59 contacts →
	Exact match “As a truly independent mobile calibration company, Precision Diagnostics partners with collision shops throughout the country to diagnose, calibrate, and deliver vehicles with…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Alltite	Exact match	Wichita, KS, United StatesHQ recorded Sep 19, 2026	51-200	54 contacts →
	Exact match “Our unique suite of online and on-site services, calibration, and tooling answers the needs of diverse ISO-compliant industries.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	FLW Incorporated	Exact match	Huntington Beach, CA, United StatesHQ recorded Sep 19, 2026	51-200	50 contacts →
	Exact match “FLW, Inc, a private, family owned company, specializes in the sales of industrial physical measurement, control and calibration product.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	The Tool & Gage House	Exact match	Charlotte, NC, United StatesHQ recorded Sep 19, 2026	51-200	50 contacts →
	Exact match “Since 1976, The Tool & Gage House provides measurement tools, testing equipment, and assembly systems supported with design, installation, training and calibration services.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Aldinger Company	Exact match	Dallas, TX, United StatesHQ recorded Sep 19, 2026	51-200	48 contacts →
	Exact match “The Aldinger Company is a full-service measurement and test equipment calibration, sales, and service provider with over 50 years of experience servicing Texas.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Accredited Labs	Exact match	Irving, TX, United StatesHQ recorded Sep 19, 2026	501-1,000	46 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 · Sep 19, 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 “calibration service providers”. 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 547 calibration service providers based in the United States

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Calibration service providers based in the United States at a glance

As of Sep 19, 2026

43.2%Verified-email coverage

15.7Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

272

11-50

208

51-200

201-500

501-1,000

1,001-5,000

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 547 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 “calibration service providers” 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 3,704 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 19, 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 “calibration service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many calibration service providers are there based in the United States?

RevenueBase identified 547 company matches for calibration service providers associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Applied Technical Services, LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most calibration service providers?

Houston leads with 14 company records, followed by San Diego (7) and Charlotte (5).

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 3,704 professional contacts with verified work emails tracked across these 547 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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.