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Newleos Therapeutics

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Clinical stage neuroscience firm advancing oral small molecules for anxiety and cognitive disorders

Boston, United StatesFounded 2024Biotech & Life Sciences
Valuation $500M–1B Last recorded · 2025
Headcount <100 Current team size
Total funding $50–100M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Newleos Therapeutics and the history behind them.

About Newleos Therapeutics

Newleos Therapeutics is a clinical stage neuroscience company co-founded by Longwood Fund and experienced leaders in CNS drug development. The company focuses on developing oral small molecules targeting novel mechanisms for a range of indications, including generalized anxiety, social anxiety, substance use disorders, and cognitive impairment. Newleos operates in the pharmaceutical and biotechnology market, primarily serving patients with central nervous system disorders. The business model involves advancing its clinical pipeline, which was in-licensed from Roche, through various stages of clinical trials to achieve regulatory approval and commercialization. Revenue generation is anticipated through the successful development and eventual market introduction of its drug candidates. Key products in development include NTX 1955, a first-in-class positive allosteric modulator of the GABAA receptor, and NTX 1472, a highly selective vasopressin 1a receptor antagonist. These compounds aim to address the limitations of current therapies by offering targeted treatment options with potentially fewer side effects. Newleos is committed to addressing unmet needs in the management of anxiety and cognitive disorders, leveraging its expertise in neuroscience and drug development.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2024
Headquarters
Boston, United States
Employees
28
Open positions
None listed
Dealroom signal
93.2/100
Industry
Health
Sub-industry
Pharmaceutical, BioTechnology
Sector
Biotech & Life Sciences, Biotechnology, Biotech and Pharma, DT and LS, science-based
Business model
Manufacturing
Client focus
b2b

Open roles

1 open role
From job postings in the last four months. Careers page ↗More startups hiring →

Funding history

1 recorded event

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES AOther financing Feb 2025 $94M $374M Arkin Capital · DCVC Bio · Goldman Sachs · Longwood Fund ↗
Showing the latest 1 of 1 recorded eventsBook a demo for the full funding history →

Growth signals

Newleos Therapeutics website traffic

Latest recorded traffic for Newleos Therapeutics is 1.2K monthly website visits, down 52% over the last three months. Newleos Therapeutics's team grew 460% over the past year.

Latest monthly visits1.2K 3-month web change-52% 1-year team growth+460%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

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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

5 investors on the cap table

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

Series A5 investors entered at this stage

  • Goldman Sachs
  • Arkin Capital
  • DCVC Bio
  • Longwood Fund
  • Novo Holdings
Team profiled 4 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 3 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 States95.5%
🇨🇭 Switzerland4.5%
2 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Newleos Therapeutics 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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