Insights

Specialized isotope Isoray manufactures Cesium-131 brachytherapy seeds for cancer treatment, highlighting a specialized medical device product that can be positioned as a high-value offering to oncology centers seeking alternatives to traditional isotopes.

Clinical leadership The technology originated from decades of research and is used by top medical centers, suggesting strong clinical credibility and potential for expanding partnerships with leading hospitals and cancer institutes.

Growth potential With revenue in the low-to-mid multi-million range and an expanding clinical adoption narrative, there is opportunity to scale through hospital networks, regional cancer centers, and surgical oncology groups.

Market differentiator Cesium-131 offers potential clinical benefits due to its physical properties, providing a compelling talking point to differentiate Isoray from Iodine-125 and Palladium-103 in seed brachytherapy offerings.

Strategic partnerships Small to midsize team size (11-50 employees) presents a nimble structure for channel partnerships, training programs, and co-marketing with distributors or oncology device integrators to accelerate adoption.

Isoray Tech Stack

Isoray uses 8 technology products and services including RSS, MySQL, Microsoft Excel, and more. Explore Isoray's tech stack below.

  • RSS
    Content Management System
  • MySQL
    Database
  • Microsoft Excel
    Editors
  • SweetAlert
    Javascript Libraries
  • jQuery Migrate
    Javascript Libraries
  • ActiveCampaign
    Marketing Automation
  • PDF.js
    Miscellaneous
  • Microsoft Word
    Office Suites

Media & News

Isoray's Email Address Formats

Isoray uses at least 1 format(s):
Isoray Email FormatsExamplePercentage
FLast@isoray.comJDoe@isoray.com
90%
Last_First@isoray.comDoe_John@isoray.com
4%
Last@isoray.comDoe@isoray.com
4%
FiLast@isoray.comJoDoe@isoray.com
2%

Frequently Asked Questions

What is Isoray's phone number?

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You can contact Isoray's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Isoray's stock symbol?

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Isoray is a publicly traded company; the company's stock symbol is ISR.

What is Isoray's official website and social media links?

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Isoray's official website is isoray.com and has social profiles on LinkedInCrunchbase.

What is Isoray's SIC code NAICS code?

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Isoray's SIC code is 2835 - In Vitro and In Vivo Diagnostic Substances NAICS code is 3391 - Medical Equipment and Supplies Manufacturing.

How many employees does Isoray have currently?

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As of July 2026, Isoray has approximately 32 employees across 2 continents, including North AmericaEurope. Key team members include Vice President Sales And Marketing: D. F.Independent Director: P. V.Yes: D. D.. Explore Isoray's employee directory with LeadIQ.

What industry does Isoray belong to?

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Isoray operates in the Medical Equipment Manufacturing industry.

What technology does Isoray use?

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Isoray's tech stack includes RSSMySQLMicrosoft ExcelSweetAlertjQuery MigrateActiveCampaignPDF.jsMicrosoft Word.

What is Isoray's email format?

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Isoray's email format typically follows the pattern of FLast@isoray.com. Find more Isoray email formats with LeadIQ.

How much funding has Isoray raised to date?

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As of July 2026, Isoray has raised $34M in funding. The last funding round occurred on Jan 22, 2024 for $21M.

When was Isoray founded?

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Isoray was founded in 1998.
Isoray logo

Isoray

Medical Equipment ManufacturingWashington, United States11-50 Employees

Isoray is a medical equipment manufacturer headquartered in Richland, Washington, focusing on Cesium-131 brachytherapy seeds used to treat cancer. The radioactive seeds are sealed in titanium capsules and implanted directly into the tumor, for example in the prostate, to provide targeted radiation therapy. The unique properties of Cesium-131 are linked with potential clinical benefits for patients receiving seed brachytherapy.

Founded in 1998 to produce and commercialize Cesium-131 seeds, Isoray serves major medical centers, hospitals, and clinics across the United States. The company operates with a relatively small workforce within the medical device sector.

Section iconCompany Overview

Phone number
Website
isoray.com
SIC Code
2835 - In Vitro and In Vivo Diagnostic Substances
Stock Symbol
ISR
NAICS Code
3391 - Medical Equipment and Supplies Manufacturing
Founded
1998
Employees
11-50

Section iconFunding & Financials

  • $34M

    Isoray has raised a total of $34M of funding over 3 rounds. Their latest funding round was raised on Jan 22, 2024 in the amount of $21Mas a post_ipo_equity.

  • $1M$10M

    Isoray's revenue is estimated to be in the range of $1M$10M

Section iconFunding & Financials

  • $34M

    Isoray has raised a total of $34M of funding over 3 rounds. Their latest funding round was raised on Jan 22, 2024 in the amount of $21Mas a post_ipo_equity.

  • $1M$10M

    Isoray's revenue is estimated to be in the range of $1M$10M

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