Company lists · Data refreshed November 2026

Top 25 Proton therapy providers based in the United States

RevenueBase identified 91 company matches for proton therapy providers associated with the United States as of November 2026 and tracks 1,640 professional contacts across them, including 585 with verified work emails. Jacksonville is the largest hub.

This list covers company matches for proton therapy 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 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
91Companies
1,640Contacts tracked
585Verified emails
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The 25 largest proton therapy providers based in the United States

Ranked by team size
Top 25 of 91 company matches for proton therapy providers 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 matchLittleton, MA, United StatesHQ recorded Nov 6, 202651-200256 contacts →

Exact match

“Mevion Medical Systems, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-200121 contacts →

Exact match

“The New York Proton Center is creating the gold standard for proton therapy, giving new hope to patients living with cancer.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchJacksonville, FL, United StatesHQ recorded Nov 6, 202651-200105 contacts →

Exact match

“University of Florida Health is a top-ranked cancer care destination that attracts the brightest students, scholars, scientists and health care providers, all ready to tackle our…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchEdina, MN, United StatesHQ recorded Nov 6, 202651-20076 contacts →

Exact match

“In 1982, Dr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchSomerset, NJ, United StatesHQ recorded Nov 6, 202651-20071 contacts →

Exact match

“ProCure Proton Therapy Center in Somerset, N.J.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSan Diego, CA, United StatesHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“THE MOST ADVANCED FORM OF CANCER TREATMENT Proton therapy is a much less invasive alternative, recommended for numerous types of cancers that historically have been treated…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchKnoxville, TN, United StatesHQ recorded Nov 6, 2026201-50054 contacts →

Exact match

“Provision Healthcare was formed in 2005 with the purpose of developing innovative healthcare solutions focused on improving patient care and clinical outcomes and developing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLoma Linda, CA, United StatesHQ recorded Nov 6, 202651-20046 contacts →

Exact match

“Optivus Proton Therapy, Inc.(Optivus), was formed in 1993 with a mission: To Save Lives with Proton Therapy Optivus' mission is alive and well and is exemplified by the work we do…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchOklahoma City, OK, United StatesHQ recorded Nov 6, 202611-5036 contacts →

Exact match

“Oklahoma Proton Center is dedicated to bringing proton therapy to patients by using a comprehensive approach that provides state-of-the-art proton therapy in a healing environment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSeattle, WA, United StatesHQ recorded Nov 6, 20261,001-5,00036 contacts →

Exact match

“Fred Hutchinson Cancer Center - Proton Therapy is among a small number of centers in the nation to offer proton therapy and is the first in the Northwest.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchPleasanton, CA, United StatesHQ recorded Nov 6, 2026201-50027 contacts →

Exact match

“Global Leader in Proton Beam Therapy (PBT) Service & Maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMclean, VA, United StatesHQ recorded Nov 6, 202651-20021 contacts →

Exact match

“Radiation Oncology, Medical Physics and dosimetry services in the US and globally for the last 30 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAlgonquin, IL, United StatesHQ recorded Nov 6, 202611-5019 contacts →

Exact match

“Retina Health Institute is the pioneer in bringing Proton Beam Radiation for Ocular Melanoma to the Midwest.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchDelray Beach, FL, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“The South Florida Proton Therapy Institute (SFPTI) is a radiation oncology center that opened in 2018 on the campus of Delray Medical Center.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchJacksonville, FL, United StatesHQ recorded Nov 6, 202611-5017 contacts →

Exact match

“Dr.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWoburn, MA, United StatesHQ recorded Nov 6, 202651-20016 contacts →

Exact match

“ProTom International is a leading device manufacturer of proton therapy technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMontgomery, AL, United StatesHQ recorded Nov 6, 202611-5014 contacts →

Exact match

“CENTRAL ALABAMA RADIATION ONCOLOGY is a hospital & health care company based out of 4143 CARMICHAEL ROAD, MONTGOMERY, Alabama, United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchWarrenville, IL, United StatesHQ recorded Nov 6, 20261-1012 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchNashua, NH, United StatesHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Radiation Center of Greater Nashua is a hospital & health care company based out of United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 202611-5010 contacts →

Exact match

“Strategic Alliance Holdings Global, LLC (“SAH Global”), is a holding company set up to establish highly specialized projects in areas such as healthcare.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMount Pleasant, UT, United StatesHQ recorded Nov 6, 20261-109 contacts →

Exact match

“Diacor was founded with a single goal: to make radiation therapy as safe and accurate as possible.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202611-509 contacts →

Exact match

“Legion Healthcare Partners (LHP) is a group of healthcare executives, clinical advisors and domain experts.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchWashington, DC, United StatesHQ recorded Nov 6, 20261-108 contacts →

Exact match

“The National Association for Proton Therapy (“NAPT”) is an independent non-profit organization founded in 1990 to educate and raise public awareness about the clinical benefits of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSpokane Valley, WA, United StatesHQ recorded Nov 6, 202611-507 contacts →

Exact match

“Welcome to the most advanced integrated Cancer Treatment Center serving Eastern Washington, Northern Idaho and Montana out of Spokane, Wa.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLos Angeles, CA, United StatesHQ recorded Nov 6, 20261-106 contacts →

Exact match

“Your Ally for Precision Radiation Therapy”

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

Showing 25 of 91 proton therapy providers based in the United States

See the full list, filter by size, metro and specialty, and access 585 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Proton therapy providers based in the United States at a glance

As of Nov 6, 2026
35.7%Verified-email coverage
18.0Average contacts per company
11-50Median size (employees)
6.6%Largest-city concentration · Jacksonville
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
31
51-200
23
201-500
3
501-1,000
3
1,001-5,000
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 91 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 “proton therapy 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 585 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 “proton therapy providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many proton therapy providers are there based in the United States?

RevenueBase identified 91 company matches for proton therapy providers 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?

Mevion Medical Systems tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most proton therapy providers?

Jacksonville leads with 6 company records, followed by Atlanta (3) and Houston (3).

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 585 professional contacts with verified work emails tracked across these 91 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.

Ready to reach these companies? Verified emails and direct dials for all 91 proton therapy providers based in the United States. Start with a free account, no credit card.

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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.