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Syndeio Biosciences

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Developing rapid-acting therapies to enhance synaptic health and treat CNS disorders through novel synapse pharmacology

Indianapolis, United StatesFounded 2025Biotech & Life Sciences
Valuation $250–500M 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 Syndeio Biosciences and the history behind them.

About Syndeio Biosciences

The company is at the forefront of developing drug candidates that leverage a unique synapse pharmacology platform to address central nervous system (CNS) disorders. By focusing on synaptic health, the company targets diseases characterized by synaptic weakening, such as depression and schizophrenia, which affect over a billion people globally. The business model revolves around creating therapies that trigger lasting biological changes with a single drug dose, thereby strengthening neuron connections. This approach is not only rapid-acting but also aims to be safer and more effective than traditional methods. The company's proprietary platform, developed from the Standard University laboratory of Nobel laureate Thomas C. M.D., integrates molecular, functional, and behavioral insights to optimize synapse biology. Currently, a Phase 2a trial in collaboration with the University of Pittsburgh is underway, evaluating the potential of apimostinel, an NMDAR positive allosteric modulator, paired with digital therapy for enhanced outcomes. The company generates revenue through the development and potential commercialization of these transformative therapies, with a focus on establishing a best-in-class safety and efficacy profile for acute depression treatment.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2025
Headquarters
Indianapolis, United States
Employees
23
Open positions
1
Dealroom signal
90.8/100
Industry
Health
Sub-industry
BioTechnology
Sector
Biotech & Life Sciences, Biotechnology, Drug Development, Neurology, Mental Health, Spinout, Biotech and Pharma, DT and LS, science-based
Business model
Manufacturing
Client focus
b2b
Investment activity
1 company, latest May 2025
Capital deployed
—
Preferred round
ACQUISITION

Funding history

2 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES AOther financing Jun 2025 $90M $360M Eli Lilly · Palo Santo Venture Fund · Luson Bioventures · Catalio Capital Management ↗
SPINOUTOther financing Jan 2025 $0 — Stanford University —
Showing the latest 2 of 2 recorded eventsBook a demo for the full funding history →

Growth signals

Syndeio Biosciences website traffic

Latest recorded traffic for Syndeio Biosciences is 3.3K monthly website visits, up 43.5% over the last three months. Syndeio Biosciences's team grew 76.9% over the past year.

Latest monthly visits3.3K 3-month web change+43.5% 1-year team growth+76.9%
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

6 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

  • Eli Lilly
  • Palo Santo Venture Fund
  • Luson Bioventures
  • Catalio Capital Management
  • Tenmile

Other known investors1 additional known investor

  • Stanford University
Team profiled 2 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 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 States88.9%
🇦🇺 Australia11.1%
2 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Syndeio Biosciences 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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