Company lists · Data refreshed November 2026

Top 14 Slate mining companies based in the United States

RevenueBase identified 29 company matches for slate mining companies associated with the United States as of November 2026 and tracks 351 professional contacts across them, including 157 with verified work emails. Poultney is the largest hub.

This list covers company matches for slate mining companies 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
29Companies
351Contacts tracked
157Verified emails
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The 14 largest slate mining companies based in the United States

Ranked by team size
Top 14 of 29 company matches for slate mining companies 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 matchHagerstown, PA, United StatesHQ recorded Nov 6, 2026501-1,000215 contacts →

Exact match

“Specialty Granules LLC has been a leader and innovator in aggregates and mining for over 100 years, manufacturing specialized products for the roofing, construction, and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchGold Hill, NC, United StatesHQ recorded Nov 6, 202651-20012 contacts →

Exact match

“Stalite Lightweight Aggregate's technical data, test reports, and project reports provide testimony to the high performance, high strength, durability, and low absorption of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202611-5011 contacts →

Exact match

“The natural stone products that Thorntree purveys were formed in nature millions of years ago.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchPoultney, VT, United StatesHQ recorded Nov 6, 202651-20010 contacts →

Exact match

“The Greenstone Slate Company has been a leader in crafting Vermont roofing slate for more than 50 years, shipping slate all over the world for various residential and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchJefferson, ME, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Working closely with landscapers, architects, masons, contractors and homeowners, we offer New England’s largest variety of custom-sawn and natural stone products.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchJarrell, TX, United StatesHQ recorded Nov 6, 20261-107 contacts →

Exact match

“Cobra Stone Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchPoultney, VT, United StatesHQ recorded Nov 6, 202611-505 contacts →

Exact match

“New England Slate offers the world’s finest slate roofing.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchPeoa, UT, United StatesHQ recorded Nov 6, 202611-505 contacts →

Exact match

“Mountain Valley Stone LLC is a building materials company and stone quarry based out of 6702 W Browns Canyon Rd, Peoa, Utah.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchPlacerville, CA, United StatesHQ recorded Nov 6, 20261-104 contacts →

Exact match

“Chili Bar Slate is one of the most sought after types of slate in the Western U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchMalvern, PA, United StatesHQ recorded Nov 6, 20261-104 contacts →

Exact match

“TROPICAL STONE LLC is a company based out of 4 LEE BOULEVARD, MALVERN, Pennsylvania, United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchRichmond, VA, United StatesHQ recorded Nov 6, 202611-504 contacts →

Exact match

“Virginia Slate has refined our selection and delivery process to ensure contractors, supply houses and homeowners can quickly access the best slate the world has to offer, from…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchPerryville, MO, United StatesHQ recorded Nov 6, 202651-2001 contacts →

Exact match

“For over 20 years, Semco Stone has been setting the standards for quality natural landscape stone.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchFond Du Lac, WI, United StatesHQ recorded Nov 6, 202611-501 contacts →

Exact match

“For decades we’ve quarried our Wisconsin locations providing a superior building material trusted by Architects, Contractors, and Project Owners nation-wide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCompton, CA, United StatesHQ recorded Nov 6, 20261-101 contacts →

Exact match

Recorded description not available.

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

Showing 14 of 29 slate mining companies based in the United States

See the full list, filter by size, metro and specialty, and access 157 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Slate mining companies based in the United States at a glance

As of Nov 6, 2026
44.7%Verified-email coverage
12.1Average contacts per company
1-10Median size (employees)
10.3%Largest-city concentration · Poultney
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
7
51-200
3
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 29 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 “slate mining companies” 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 157 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 “slate mining companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many slate mining companies are there based in the United States?

RevenueBase identified 29 company matches for slate mining companies 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?

Specialty Granules LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most slate mining companies?

Poultney leads with 3 company records, followed by Middle Granville (2) and Blue Ridge Summit (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 157 professional contacts with verified work emails tracked across these 29 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.