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21st Century Oncology Holdings, Inc.

21st Century Oncology Ho... Market Share Analysis for May 2026

Health > Health - Other

Domain21co.com

Year Founded1983

Employees1001 - 5000

Annual Revenue> $1B

21st Century Oncology Holdings, Inc.

21st Century Oncology Holdings, Inc. (including company regionals)

21co.com

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21st Century Oncology Holdings, Inc. Revenue up to May 2026 is > 1B

revenue generated by 21st Century Oncology Holdings, Inc. top domains

21st Century Oncology Holdings, Inc. top domains revenue over 3 years

Revenue for 21st Century Oncology Holdings, Inc. top domains

21co.com> 1B

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Total visits to 21st Century Oncology Holdings, Inc.'s top domains

Understand 21st Century Oncology Holdings, Inc. market share and potential market reach.

Total visits last 3 months

Subsidiaries Breakdown

21co.com--

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Avg. visit duration in 21st Century Oncology Holdings, Inc.'s top domains

Analyze 21st Century Oncology Holdings, Inc. engagement metrics.

Average visit duration last 3 months

Subsidiaries Breakdown

21co.com--

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Avg. pageviews on 21st Century Oncology Holdings, Inc.'s top domains

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Average page views last 3 months

Subsidiaries Breakdown

21co.com--

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21st Century Oncology Holdings, Inc. top competitors by domain

Top similar sites in May 2026, ranked by their affinity

healthgrades.comCompany NameHealthgradesEmployees501 - 1000HQUnited States, Colorado, DenverAnnual revenue$200M - $500MTotal visits7.3MHealth > Health - Other

Top technologies used by 21st Century Oncology Holdings, Inc.

These are the website technologies, by industry, used by 21st Century Oncology Holdings, Inc. top domains

Advertising (10)

DoubleClick

Widget (8)

Twemoji

Social (6)

Instagram

Conversion & Analytics (4)

Google Analytics

More Technologies

9

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News & Signals from 21st Century Oncology Holdings, Inc.

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News21co merged with GenesisCare USA on Jan 1st '20.The first owner, 21st Century Oncology, filed for bankruptcy in 2017 and merged with GenesisCare in 2020.

News21co has issues with three separate class-action lawsuits.UPDATE: Individual lawsuits have since been dismissed and combined with a multi-district lawsuit titled “21st Century Oncology Consumer Data Security Breach Litigation, Case No. 8:16-md-02737-MSS-AEP” More than 300 people have joined three separate class-action lawsuits against 21st Century Oncology, claiming the company failed to take adequate security measures in protecting electronic medical…

News21co has issues with Chapter 11 bankruptcy.Approval of the deal by the district court in Tampa, Florida, would bring an end to four years of hard-fought litigation that included the trial court's denial of 21st Century's motion to dismiss, a Chapter 11 bankruptcy filing by the company as well as a settlement with the patients in that court, and a. .