Company lists · Data refreshed November 2026

Top 18 Density standards suppliers based in the United States

RevenueBase identified 33 company matches for density standards suppliers associated with the United States as of November 2026 and tracks 480 professional contacts across them, including 213 with verified work emails. Christiansburg is the largest hub.

This list covers company matches for density standards suppliers 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 5, 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 5, 2026 How this list was built
33Companies
480Contacts tracked
213Verified emails
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The 18 largest density standards suppliers based in the United States

Ranked by team size
Top 18 of 33 company matches for density standards suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchLafayette, IN, United StatesHQ recorded Nov 5, 2026201-50097 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 · Nov 5, 2026 · View company records in RevenueBase
2Exact matchThorofare, NJ, United StatesHQ recorded Nov 5, 202651-20097 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 · Nov 5, 2026 · View company records in RevenueBase
3Exact matchChristiansburg, VA, United StatesHQ recorded Nov 5, 202651-20075 contacts →

Exact match

“Inorganic Ventures is a leading manufacturer of a high class analytical inorganic standards.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchMetuchen, NJ, United StatesHQ recorded Nov 5, 202651-20034 contacts →

Exact match

“Spex is a premier brand in the manufacturing of Certified Reference Materials (CRMs) and Calibration Standards for Analytical Spectroscopy and Chromatography.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchManchester, NH, United StatesHQ recorded Nov 5, 202651-20021 contacts →

Exact match

“You’ve trusted us for decades to create superior reference materials and innovative measurement tools that support the quality of your analyses.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchPlacentia, CA, United StatesHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
7Exact matchGolden, CO, United StatesHQ recorded Nov 5, 202611-5015 contacts →

Exact match

“Phenova, located in Golden, CO, is a leading ISO 17043 accredited provider of proficiency testing products and services, quality control standards and an ISO 17025/ISO Guide 34…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchNorth Charleston, SC, United StatesHQ recorded Nov 5, 202611-5015 contacts →

Exact match

“High-Purity Standards has proudly served the scientific community for the past twenty years with high quality spectrometric standards and reference materials for AAS, ICP, ICP-MS…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchSouth Windsor, CT, United StatesHQ recorded Nov 5, 202611-509 contacts →

Exact match

“At Holts Precision, Inc.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchStafford, TX, United StatesHQ recorded Nov 5, 202611-508 contacts →

Exact match

“Founded in 1988, Southwest Calibration Service supports the test and measurement needs of manufacturers across energy, aerospace, pharmaceutical, industrial, and chemical…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchSandy, UT, United StatesHQ recorded Nov 5, 202611-508 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 · Nov 5, 2026 · View company records in RevenueBase
12Exact matchColchester, VT, United StatesHQ recorded Nov 5, 202611-508 contacts →

Exact match

“Isotech is a world leader in temperature metrology.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchSheridan, WY, United StatesHQ recorded Nov 5, 202611-505 contacts →

Exact match

“At CRS we are committed to provide the best quality Certified Reference Standards to satisfy your Quality Control and Research & Development needs.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchBlaine, WA, United StatesHQ recorded Nov 5, 20261-103 contacts →

Exact match

“Certified Reference Materials are produced and distributed by this BS EN ISO 9001:2008 and ISO Guide 34:2008 accredited company.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchCarrollton, TX, United StatesHQ recorded Nov 5, 20261-103 contacts →

Exact match

“Better Measurements for a Better World™ We hope you will decide to choose Alternate Systems to be your partner in measurement science.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchGolden, CO, United StatesHQ recorded Nov 5, 20261-102 contacts →

Exact match

“Rocky Mountain Reference Materials primary objective is to develop and implement an industry influenced and accepted program for the chemical characterization and certification of…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchAurora, CO, United StatesHQ recorded Nov 5, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchUrbana, MD, United StatesHQ recorded Nov 5, 20261-101 contacts →

Exact match

“Here at Opthos we make atomic and molecular standards for academia, business and government.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 18 of 33 density standards suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 213 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Density standards suppliers based in the United States at a glance

As of Nov 5, 2026
44.4%Verified-email coverage
14.5Average contacts per company
11-50Median size (employees)
6.1%Largest-city concentration · Christiansburg
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
16
51-200
5
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 33 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 “density standards suppliers” 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 213 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 5, 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 “density standards suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many density standards suppliers are there based in the United States?

RevenueBase identified 33 company matches for density standards suppliers 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?

Radian Research, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most density standards suppliers?

Christiansburg leads with 2 company records, followed by Golden (2) and Aurora (1).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 213 professional contacts with verified work emails tracked across these 33 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 5, 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.