Company lists · Data refreshed September 2026

Top 9 Solar grade silicon refineries based in the United States

RevenueBase identified 36 company matches for solar grade silicon refineries associated with the United States as of September 2026 and tracks 1,341 professional contacts across them, including 514 with verified work emails. San Francisco is the largest hub.

This list covers company matches for solar grade silicon refineries 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 18, 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 18, 2026 How this list was built
36Companies
1,341Contacts tracked
514Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 9 largest solar grade silicon refineries based in the United States

Ranked by team size
Top 9 of 36 company matches for solar grade silicon refineries based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 18, 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 matchHemlock, MI, United StatesHQ recorded Sep 18, 20261,001-5,000791 contacts →

Exact match

“About Hemlock Semiconductor Hemlock Semiconductor Operations (HSC) is a leading provider of hyper-pure polycrystalline silicon (polysilicon) and other silicon-based products used…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
2Exact matchMoses Lake, WA, United StatesHQ recorded Sep 18, 2026201-500254 contacts →

Exact match

“REC Silicon is a global leader in silane-based, high-purity silicon materials.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
3Exact matchBurnsville, MS, United StatesHQ recorded Sep 18, 202651-20037 contacts →

Exact match

“Mississippi Silicon is the first domestic manufacturer of raw silicon metal built in the past 40 years and produces approximately 10% of all silicon metal used in the United…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
4Exact matchMissoula, United StatesHQ recorded Sep 18, 202611-5031 contacts →

Exact match

“Cost leading, high-purity silicon solutions for the world.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
5Exact matchTheodore, AL, United StatesHQ recorded Sep 18, 202651-20022 contacts →

Exact match

“Mitsubishi Polysilicon is an international leader in the production of Ultra-Pure Polycrystalline Silicon for the semiconductor industry.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
6Exact matchRochester, NY, United StatesHQ recorded Sep 18, 202611-5012 contacts →

Exact match

“Linton Crystal Technologies (LCT) is the world leader in the design, development and manufacture of equipment for producing monocrystalline ingots for the semiconductor and solar…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
7Exact matchLexington, KY, United StatesHQ recorded Sep 18, 20261-105 contacts →

Exact match

“Silrec is a multi-faceted organization, offering a wide range of products and services to the semiconductor and solar industries.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
8Exact matchSan Francisco, CA, United StatesHQ recorded Sep 18, 20261-102 contacts →

Exact match

“Leap Photovoltaics is developing a revolutionary process to manufacture crystalline silicon solar cells without wafers.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
9Exact matchAmericus, GA, United StatesHQ recorded Sep 18, 2026201-5002 contacts →

Exact match

“NanoPV solar is executing the largest solar manufacturing facility of USA with the most advanced solar technology and highest energy efficiency in the market.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase

Showing 9 of 36 solar grade silicon refineries based in the United States

See the full list, filter by size, metro and specialty, and access 514 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Solar grade silicon refineries based in the United States at a glance

As of Sep 18, 2026
38.3%Verified-email coverage
37.2Average contacts per company
11-50Median size (employees)
11.1%Largest-city concentration · San Francisco
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
8
51-200
8
201-500
6
1,001-5,000
1
10001+
2

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 36 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 “solar grade silicon refineries” 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 514 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 18, 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 “solar grade silicon refineries”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many solar grade silicon refineries are there based in the United States?

RevenueBase identified 36 company matches for solar grade silicon refineries 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?

Hemlock Semiconductor tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most solar grade silicon refineries?

San Francisco leads with 4 company records, followed by Salem (2) and Americus (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 514 professional contacts with verified work emails tracked across these 36 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 18, 2026.

Ready to reach these companies? Verified emails and direct dials for all 36 solar grade silicon refineries based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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.