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Xilis

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Developing next generation technologies for precision medicine and drug discovery

Durham, United StatesFounded 2019Biotech & Life Sciences
Valuation $50–100M Last recorded · 2025
Headcount <100 Current team size
Total funding $100–500M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Xilis and the history behind them.

About Xilis

Xilis is a biotechnology startup that operates in the oncology and drug development market. The company's primary innovation is the MicroOrganoSphereTM (MOS) technology and Precision Oncology Platform. These technologies are designed to revolutionize treatment choices for cancer patients and expedite the process of drug discovery and development.

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The MOS technology creates microscale tumors that maintain the structure, genetic alterations, gene expression, immune microenvironment, and histopathology of individual patients' tumors. This allows for rapid diagnostics and personalized therapy prioritization by predicting patient response. It also provides scalable patient-derived models for high-throughput and immuno-oncology drug discovery.

The Precision Oncology Platform aids clinicians in making timely treatment decisions by predicting patient treatment response and suggesting optimal therapeutic options. The Xilis Response ScoreTM, a part of this platform, can guide prioritized treatment decisions for oncologists and ensure patients receive the right drug at the right time.

Xilis' business model is centered around providing an end-to-end patient-centric solution that transforms cancer drug development. This includes cost-effective, high-throughput drug candidate screening, pre-clinical assessment of immuno-oncology drugs, personalized assays to determine patient eligibility for clinical trials, and companion diagnostics to guide patients to newly developed treatments.

The company's primary clients are oncologists and other healthcare professionals involved in cancer treatment, as well as pharmaceutical companies engaged in drug discovery and development.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2019
Headquarters
Durham, United States
Employees
14
Open positions
None listed
Dealroom signal
61.8/100
Industry
Health
Sub-industry
Pharmaceutical, BioTechnology
Sector
Biotech & Life Sciences, Biotechnology, Drug Development, Precision Medicine, Spinout, Tech for Biotech and Pharma, Biotech and Pharma, Hard Tech, DT and LS, science-based
Business model
Manufacturing
Client focus
b2b

Funding history

6 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
LATE VCOther financing Apr 2025 $19M $76M Undisclosed ↗
SERIES AOther financing Jul 2022 $19M $350M EQT Ventures · Duke Capital Partners · Alix Ventures · FPV Ventures ↗
Showing the latest 2 of 6 recorded eventsBook a demo for the full funding history →

Growth signals

Xilis website traffic

Latest recorded traffic for Xilis is 3.4K monthly website visits, up 794.7% over the last three months. Xilis's team declined 65.9% over the past year.

Latest monthly visits3.4K 3-month web change+794.7% 1-year team growth-65.9%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

Company identity and context are open; selected comparison metrics preview what is available on the platform.

Showing 8 of the closest matchesCompare every metric →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

11 investors on the cap table

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

Seed1 investor entered at this stage

Series A10 investors entered at this stage

Team profiled 16 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 4 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
2 countries with
team presence
🇺🇸 United States85.7%
🇳🇱 Netherlands14.3%
2 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Xilis 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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