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RayzeBio

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Defeating cancer with radiopharmaceutical medicines

San Diego, United StatesFounded 2020Biotech & Life Sciences
Valuation $2.5–5B Latest valuation · 2025
Headcount 100–500 Current team size
Total funding $100–500M Disclosed equity funding

About RayzeBio

RayzeBio is a vertically integrated radiopharmaceutical therapeutics company focused on improving cancer patient survival through the development of targeted, innovative drugs that harness the power of radioisotopes. The company operates in the oncology market, serving cancer patients with solid tumors, including metastatic disease. RayzeBio's business model involves the discovery, preclinical evaluation, and clinical development of radiopharmaceutical drug candidates. The company makes money by advancing its drug candidates through clinical trials and eventually bringing them to market, where they can be used to treat cancer patients. RayzeBio has built a diverse portfolio of drug candidates ranging from early discovery to late-stage clinical programs, leveraging over 500 in vivo experiments and a systematic, data-driven approach to drug development. The company aims to selectively kill cancer cells by delivering radioisotopes intravenously in a targeted manner directly to tumors.

Source: Dealroom company data

At a glance

Founded
2020
Headquarters
San Diego, United States
Listing
IPO 2023
Sector
Biotech & Life Sciences
Power Law
Unicorn$1–10B valuation tier

Investors

22 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A12 investors entered at this stage

Series B and later10 investors entered at this stage

Employees mapped 264 incl. 2 AI specialists
Founders Hidden — book a demo/100 quality score
Key operators 9 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
4 countries with
team presence
🇺🇸 United States98%
🇫🇷 France1%
🇨🇦 Canada0.5%
🇦🇷 Argentina0.5%
4 countries shown
Web traffic by country
5.6K monthly visits
across markets
🇺🇸 United States87.5%
🇮🇳 India14.3%
Top 2 markets shown

Patents

Estimated portfolio value
$439k

14 active patent families included in this estimate.

A patent family groups patent filings for the same invention. Source: Dealroom · PatSnap.

Explore the patent portfolioPatent records, technology areas and peer comparisonsBook a demo

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about RayzeBio on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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