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Sionna Therapeutics, Inc. competitors & alternatives
The 12 closest competitors and alternatives to Sionna Therapeutics, Inc. among biotech companies — ranked by similarity to what Sionna Therapeutics, Inc. actually does, not by market-cap band.
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About Sionna Therapeutics, Inc.
Sionna Therapeutics is a clinical-stage biopharmaceutical company headquartered in Waltham, Massachusetts, focused on developing treatments for cystic fibrosis.
Sionna Therapeutics, Inc. at a glance
Sionna Therapeutics, Inc. is a biotech company headquartered in Waltham, United States. It is publicly listed (SION) with a market capitalisation of $221.2M. Xcout tracks 39 named people at Sionna Therapeutics, Inc., including Michael Cloonan (President, Chief Executive Officer & Director).
Sionna Therapeutics, Inc. leadership
- Michael CloonanPresident, Chief Executive Officer & Director
- Mike CloonanPresident and Chief Executive Officer
- Elena H. RidloffCFO & Chief Business Officer
- Elena Ridloff, C.F.A.Chief Financial Officer
- Charlotte McKeeChief Medical Officer & Head of Research and Development
- Caroline Stark BeerChief Business Officer
33 more named people on record for Sionna Therapeutics, Inc., with roles, board committees and tenure — see the full roster →
Sionna Therapeutics, Inc. funding rounds before its IPO
Every round on record:
| Date | Round | Amount | Investors |
|---|---|---|---|
| Series C | $182M | 10 named | |
| Series B | $111M | 7 named |
Financing after the IPO — public offerings and SEC Form D private placements — is not listed as a funding round.
Who invested in each round, lead investors, valuations and the co-investor graph — open the full funding history →
Top 12 Sionna Therapeutics, Inc. competitors
Ranked by semantic similarity — how close each company is to Sionna Therapeutics, Inc. by what it does, using Xcout's live company graph. Click any company for its full profile, or its competitor set.
Biotechnology
Nocion Therapeutics, Inc. is a clinical-stage biotechnology company headquartered in Watertown, Massachusetts, focused on developing novel therapeutics to treat chronic cough and other conditions.
Biotechnology
Sunterra Bio is a biopharmaceutical company focused on developing inhaled small-molecule therapies for rare pulmonary diseases. Headquartered in Carlsbad, California, the company advances targeted treatments for respiratory conditions.
Biotechnology
Aileron Therapeutics, Inc. is a clinical-stage biopharmaceutical company with principal executive offices located in Cambridge, Massachusetts. The company went public through a reverse merger and is involved in therapeutic acquisitions and development.
Biotechnology
Korsana Biosciences is a private biotechnology research company founded in 2024 and headquartered in Waltham, Massachusetts.
Biotechnology
SpliSense is an Israeli biotechnology company developing antisense oligonucleotide therapies that correct disease-causing RNA splicing defects. Its programs are aimed at patients with genetic diseases, including specific mutations associated with cystic fibrosis.
Biotechnology
Centessa Pharmaceuticals LLC is a biotechnology research company headquartered in Boston, Massachusetts, United States. The company comprises leaders, innovators, and scientists dedicated to pursuing and developing transformational medicines for patients.
Similar biotech company
Ventus Therapeutics is a biopharmaceutical company that has expanded its operations by opening a new facility in Waltham, Massachusetts.
Biotechnology
Apogee Therapeutics is a biotechnology company focused on the development of therapies for inflammatory and immunology diseases. The company is headquartered in Waltham, Massachusetts.
Similar biotech company
Celea Therapeutics is a biopharmaceutical company focused on advancing transformative treatments for serious respiratory diseases.
Biotechnology
Rinascera Therapeutics, Inc. is a clinical-stage biotechnology company located in Boston, Massachusetts, dedicated to transforming the treatment of rare genetic skin diseases.
Biotechnology
Immunitas Therapeutics, Inc. is a US-based biotechnology company established in 2019 and headquartered in Waltham, Massachusetts. The company focuses on pioneering novel therapeutic treatments in immunology and oncology.
Biotechnology
Orionis Biosciences is a biotechnology research company with its US headquarters located in Waltham, Massachusetts, specializing in innovative life sciences and drug discovery services.
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