Company lists · Data refreshed September 2026

Top 25 Pressure calibrator manufacturers based in the United States

Name: Pressure calibrator manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 277 companies tracked

RevenueBase identified 277 pressure calibrator manufacturers headquartered in the United States as of September 2026 and tracks 5,300 professional contacts across them, including 2,391 with verified work emails. Houston is the largest hub.

This list covers pressure calibrator manufacturers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026.

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

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review

277Companies

5,300Contacts tracked

2,391Verified emails

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The 25 largest pressure calibrator manufacturers based in the United States

Ranked by team size

Top 25 of 277 pressure calibrator manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to pressure calibrator manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Transcat	Partial evidence	Rochester, NY, United StatesHQ checked Sep 30, 2026	501-1,000	673 contacts →
	Partial evidence “At Transcat, we are the global leader in test and measurement equipment and calibration services for highly technical industries, including life sciences, power generation…” Source: RevenueBase Database · checked Sep 30, 2026
2	Micro Precision Calibration	Partial evidence	Grass Valley, CA, United StatesHQ checked Sep 30, 2026	201-500	480 contacts →
	Partial evidence “Micro Precision Calibration is a global leader offering customers around the world an easy path to instrument calibration services, standards compliance testing, equipment repair…” Source: RevenueBase Database · checked Sep 30, 2026
3	Mitutoyo America Corporation	Indirect evidence	Aurora, IL, United StatesHQ checked Sep 30, 2026	201-500	435 contacts →
	Indirect evidence “The world’s largest metrology company was founded in 1934 by Yehan Numata with one product – the micrometer.” Source: RevenueBase Database · checked Sep 30, 2026
4	Simco Electronics	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 30, 2026	201-500	391 contacts →
	Partial evidence “SIMCO Electronics is a leading provider of calibration, repair, and software services for manufacturing, life science, and technology organizations.” Source: RevenueBase Database · checked Sep 30, 2026
5	Ashcroft INC	Indirect evidence	Stratford, CT, United StatesHQ checked Sep 30, 2026	1,001-5,000	381 contacts →
	Indirect evidence “Ashcroft \| Industrial Measurement & Control Solutions For over 170 years, Ashcroft has been the trusted global resource for industrial measurement and control.” Source: RevenueBase Database · checked Sep 30, 2026
6	MSI Viking	Indirect evidence	Greer, SC, United StatesHQ checked Sep 30, 2026	51-200	144 contacts →
	Indirect evidence “MSI-Viking Gage is a leading supplier of precision measuring technologies representing the world's leading metrology and automation suppliers - including Hexagon, Mitutoyo…” Source: RevenueBase Database · checked Sep 30, 2026
7	Rothe Development INC	Partial evidence	Webster, TX, United StatesHQ checked Sep 30, 2026	201-500	127 contacts →
	Partial evidence “Since 1967, Rothe has delivered precision-driven solutions in calibration & metrology, engineering, and IT services to a wide range of commercial and industrial sectors.” Source: RevenueBase Database · checked Sep 30, 2026
8	Alicat Scientific	Strong evidence	Tucson, AZ, United StatesHQ checked Sep 30, 2026	51-200	125 contacts →
	Strong evidence “Since 1991, Alicat Scientific has manufactured custom mass flow and pressure instrumentation to equip our customers with the tools they need to advance scientific discovery and…” Source: RevenueBase Database · checked Sep 30, 2026
9	Standard Calibrations, INC	Indirect evidence	Chesapeake, VA, United StatesHQ checked Sep 30, 2026	51-200	95 contacts →
	Indirect evidence “Every Measurement Matters.” Source: RevenueBase Database · checked Sep 30, 2026
10	Reotemp Instruments	Strong evidence	San Diego, CA, United StatesHQ checked Sep 30, 2026	51-200	94 contacts →
	Strong evidence “Reotemp is a globally recognized manufacturer of temperature and pressure instrumentation.” Source: RevenueBase Database · checked Sep 30, 2026
11	Essco Calibration Laboratory	Partial evidence	Chelmsford, MA, United StatesHQ checked Sep 30, 2026	51-200	80 contacts →
	Partial evidence “Essco Calibration Laboratory provides calibration services for a wide variety of commercial test equipment.Capabilities include electronic, mechanical, fiber-optic…” Source: RevenueBase Database · checked Sep 30, 2026
12	Innovative Scientific Solutions, INC	Indirect evidence	Dayton, OH, United StatesHQ checked Sep 30, 2026	51-200	75 contacts →
	Indirect evidence “Innovative Scientific Solutions Incorporated is an engineering research and development company providing innovative measurement and instrumentation solutions in the areas of…” Source: RevenueBase Database · checked Sep 30, 2026
13	Mensor LP	Strong evidence	San Marcos, TX, United StatesHQ checked Sep 30, 2026	51-200	74 contacts →
	Strong evidence “Since 1969, Mensor has been designing and manufacturing precision pressure measuring and pressure calibration instruments and systems.” Source: RevenueBase Database · checked Sep 30, 2026
14	GR Metrology	Indirect evidence	Grand Rapids, MI, United StatesHQ checked Sep 30, 2026	51-200	60 contacts →
	Indirect evidence “Established in 1922, our core business has focused on providing our customers with prompt, professional, and precise Industrial Measurement Solutions.” Source: RevenueBase Database · checked Sep 30, 2026
15	FLW Incorporated	Partial evidence	Huntington Beach, CA, United StatesHQ checked Sep 30, 2026	51-200	50 contacts →
	Partial evidence “FLW, Inc, a private, family owned company, specializes in the sales of industrial physical measurement, control and calibration product.” Source: RevenueBase Database · checked Sep 30, 2026
16	The Tool & Gage House	Partial evidence	Charlotte, NC, United StatesHQ checked Sep 30, 2026	51-200	50 contacts →
	Partial evidence “Since 1976, The Tool & Gage House provides measurement tools, testing equipment, and assembly systems supported with design, installation, training and calibration services.” Source: RevenueBase Database · checked Sep 30, 2026
17	Aldinger Company	Partial evidence	Dallas, TX, United StatesHQ checked Sep 30, 2026	51-200	48 contacts →
	Partial evidence “The Aldinger Company is a full-service measurement and test equipment calibration, sales, and service provider with over 50 years of experience servicing Texas.” Source: RevenueBase Database · checked Sep 30, 2026
18	Proportion-Air, INC	Indirect evidence	Mccordsville, IN, United StatesHQ checked Sep 30, 2026	51-200	48 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
19	Fowler High Precision	Partial evidence	Canton, MA, United StatesHQ checked Sep 30, 2026	51-200	45 contacts →
	Partial evidence “Established in 1946, Fowler High Precision is recognized globally as one of the world's leading suppliers of high-quality inspection, control, and calibration equipment.” Source: RevenueBase Database · checked Sep 30, 2026
20	ACI Controls, INC	Indirect evidence	Cheektowaga, NY, United StatesHQ checked Sep 30, 2026	11-50	44 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
21	Nicol Scales & Measurement	Partial evidence	Dallas, TX, United StatesHQ checked Sep 30, 2026	51-200	40 contacts →
	Partial evidence “Nicol Scales & Measurement is an ISO 17025 Accredited Calibration Company that has provided calibration, repair, and sales of all types of weighing and measurement products since…” Source: RevenueBase Database · checked Sep 30, 2026
22	Cal-Cert	Partial evidence	Milwaukie, OR, United StatesHQ checked Sep 30, 2026	11-50	35 contacts →
	Partial evidence “Cal-Cert has provided high quality, professional calibration services to the materials testing industry for over 40 years and is currently accredited to ISO/IEC17025 through IAS…” Source: RevenueBase Database · checked Sep 30, 2026
23	Engineered Specialty Products ESP	Partial evidence	Kennesaw, GA, United StatesHQ checked Sep 30, 2026	51-200	34 contacts →
	Partial evidence “Engineered Specialty Products (ESP) has been a leader in Quality Pressure and Temperature Instruments for over 25 years.” Source: RevenueBase Database · checked Sep 30, 2026
24	Conrad Kacsik Instrument Systems	Partial evidence	Solon, OH, United StatesHQ checked Sep 30, 2026	11-50	34 contacts →
	Partial evidence “Conrad Kacsik Instrument Systems located in Solon Ohio, distributes, services, system engineers and provides certified calibration for process control instrumentation and process…” Source: RevenueBase Database · checked Sep 30, 2026
25	ETI Precision	Partial evidence	Frederick, MD, United StatesHQ checked Sep 30, 2026	51-200	32 contacts →
	Partial evidence “Electrical Test Instruments (ETI) is a leader in the calibration, repair, and sale of test and measurement equipment.” Source: RevenueBase Database · checked Sep 30, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: pressure calibrator manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names pressure calibrator manufacturers.
Partial evidence: Its own public description names part of pressure calibrator manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name pressure calibrator manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 277 pressure calibrator manufacturers based in the United States

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Pressure calibrator manufacturers based in the United States at a glance

As of Sep 30, 2026

45.1%Verified-email coverage

19.1Average contacts per company

11-50Median size (employees)

4.0%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

119

11-50

106

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 277 companies.

How this list was built

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

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “pressure calibrator manufacturers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names pressure calibrator manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among pressure calibrator manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 2,391 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 30, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

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

How many pressure calibrator manufacturers are there based in the United States?

RevenueBase identified 277 pressure calibrator manufacturers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Transcat, headquartered in Rochester, tops this list with the largest team on record.

Which city has the most pressure calibrator manufacturers?

Houston leads with 11 headquartered companies, followed by Fort Wayne (4) and San Diego (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,391 verified decision-maker contacts tracked across these 277 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.