Spiral TX
formerly Spiral TherapeuticsSpiral TX is a biotech company in South San Francisco, United States, founded in 2016. It has raised $35.3M across 2 rounds, most recently a $27.0M Series B in April 2026.
IMPROVING LIVES BY PROTECTING HEARING
- Headquarters
- South San Francisco, California
- Employees
- 1–10
- Founded
- 2016
- Website
- spiraltx.com
- Total Funding
- $35.3M
- Last Round
- $27.0M Series BApr 2026
- Rounds
- 2
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 2 funding rounds and 5 investors for this company. The full record is or through the API.
About
Spiral Therapeutics is advancing a therapeutic pipeline focused on balance disorders and hearing loss. Its lead program, SPT-2101, is a sustained-release steroid formulation for the treatment of Ménière's disease, a condition diagnosed in more than 600,000 patients in the United States. The company's MICS (minimally-invasive cochlear system) delivery platform delivers a wide range of drugs to the ear with high precision and long duration in a clinic-friendly approach.
Summary
It lists 1–10 employees. It has raised $35.3M in total across 2 rounds, most recently a $27.0M Series B round in Apr 2026. Investors include Goldman Sachs Alternatives, SoftBank and Nvidia.
Tech & App Stack
2 technologies & apps tracked
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Funding History
Apr 2026
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Funding: Venture Round through Series B. Amounts, valuations, and investors where available.
Investors
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