Soufflé Therapeutics Funding, Investors & Competitors

Soufflé Therapeutics has raised $335M across 2 funding rounds, most recently a $135M Series B in October 2026.

Last Soufflé Therapeutics funding round

$135M

Series B · Oct 2026

Cumulative funding Soufflé Therapeutics raised

$335M

across 2 funding rounds

Key investors in Soufflé Therapeutics

  • Bessemer Venture Partners
  • Temasek
  • ARCH Venture Partners
  • Polaris Partners
  • Safar Partners
  • Vida Ventures
  • Fidelity
  • Janus Henderson

Soufflé Therapeutics Overview

About Soufflé Therapeutics

Soufflé Therapeutics is a Boston-headquartered biotechnology firm developing nucleic acid therapeutics for precise gene editing and silencing. Founded in 2021, the company engineers lipid nanoparticle delivery systems targeting liver, lung, and immune cells for diseases like alpha-1 antitrypsin deficiency and oncology indications. Soufflé Therapeutics raised $20 million in Series A funding in 2023 from investors including ARCH Venture Partners, advancing preclinical candidates toward IND filings.


Founded

2021

HQ

United StatesBoston, MA

Status

Privately held

Customer focus

B2B

Revenue model

Licensing

Soufflé Therapeutics Funding History

Soufflé Therapeutics has raised a total of $335M across 2 funding rounds.

Soufflé Therapeutics' first fundraising round was a $200M Series A in January 2025. The most recent completed round was a $135M Series B in October 2026.

Soufflé Therapeutics funding rounds

Soufflé Therapeutics funding rounds
DateStageInvestorsRaisedDeal Summary
Oct 2026Series BJuvia Group (lead); Temasek; Vida Ventures; TCG Crossover; Amgen Ventures; Fidelity; Polaris Partners; Janus Henderson; Bessemer Venture Partners; Safar Partners; TAS Partners; ARCH Venture Partners$135MSouffle Therapeutics, a Watertown, Massachusetts developer of RNA medicines, announced the close of an oversubscribed USD 135 million Series B financing in October 2026. The round was led by Juvia Group, with new investors TCG Crossover Management, BB Biotech, Fidelity Management & Research Company, Balyasny Asset Management and a sovereign wealth fund. Existing investors Amgen Ventures, ARCH Venture Partners, Bessemer Venture Partners, Breyer Capital, Invus, Janus Henderson, Leaps by Bayer, Polaris Partners, Safar Partners, TAS Partners, Temasek and Vida Ventures also took part. The company said the proceeds will move its three lead programmes into clinical studies and advance its pipeline in other cell types and tissues. The programmes target facioscapulohumeral muscular dystrophy, heart failure with reduced ejection fraction through the phospholamban gene in cardiomyocytes, and an undisclosed muscle and metabolic disorder target. Souffle develops oligonucleotide therapies using its REMEDY product engine, which enables cell-specific delivery outside the liver. Chief executive Amir Nashat said the investors' confidence supports the belief that the engine can make an impact in patients' lives. The company emerged from stealth in October 2025 with a reported USD 200 million Series A. It also has an address in Dresden, Germany.
Jan 2025Series ABessemer Venture Partners (lead); Temasek; Vida Ventures; Polaris Partners; AbbVie; Safar Partners; Leaps by Bayer; ARCH Venture Partners$200MSoufflé Therapeutics is a Watertown, Mass.-based biotech company developing cell-specific ligands to deliver siRNA-based genetic medicines that cross the cell membrane to target specific diseases. The company, co-founded by Robert Langer and led by CEO Amir Nashat, focuses on programs for facioscapulohumeral muscular dystrophy (FSHD), cardiomyopathies from phospholamban mutations, metabolism disorders, heart and skeletal muscle diseases, and undisclosed areas via pharma collaborations. It has partnerships with Amgen, Bayer, Novo Nordisk, and others, totaling over $3.5 billion in fundraising and agreements. The Series A round, led by Bessemer Venture Partners with final closing in January 2025, contributed to nearly $200 million raised across seed and Series A, with investors including ARCH Venture Partners, Leaps by Bayer, Polaris Partners, Safar Partners, Temasek Holdings, Vida Ventures, and AbbVie. The company plans to enter clinical trials in 2026 for its lead FSHD drug targeting dux4 gene suppression, following promising animal studies. Soufflé has overcome key delivery challenges for genetic medicines, identifying rare cell-specific receptors (<0.1% of surface receptors) to shuttle siRNA into the cytoplasm effectively. Investors highlight the platform's potential for precise, safe treatments across diseases, with Bessemer's Andrew Hedin noting value in the FSHD indication lacking effective therapies.

Who has invested in Soufflé Therapeutics?

14 investors have backed Soufflé Therapeutics across its funding rounds, including Bessemer Venture Partners, Temasek, ARCH Venture Partners, Polaris Partners, Safar Partners and Vida Ventures.

Lead investors include Juvia Group and Bessemer Venture Partners.


Soufflé Therapeutics Investors

Investors in Soufflé Therapeutics by funding rounds participated
InvestorHQRoundsRoleFirst check
TemasekSingaporeSingapore2ParticipantJan 2025
Vida VenturesUnited StatesBoston, MA2ParticipantJan 2025
Polaris PartnersUnited StatesBoston, MA2ParticipantJan 2025
Bessemer Venture PartnersUnited StatesSan Francisco, CA2LeadJan 2025
Safar PartnersUnited StatesUnited States2ParticipantJan 2025
ARCH Venture PartnersUnited StatesChicago, IL2ParticipantJan 2025
TCG CrossoverUnited StatesSan Francisco, CA1ParticipantOct 2026
Amgen VenturesUnited StatesSan Francisco, CA1ParticipantOct 2026
FidelityUnited StatesBoston, MA1ParticipantOct 2026
Janus HendersonUnited StatesLondon1ParticipantOct 2026
AbbVieUnited StatesChicago, IL1ParticipantJan 2025
Leaps by BayerGermanyLeverkusen1ParticipantJan 2025

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Soufflé Therapeutics Competitors

Soufflé Therapeutics competitors include listed companies like Johnson & Johnson and Roche, and private ones like Biosplice Therapeutics, Biomat USA, ArsenalBio and BioRay Pharmaceuticals.

Public and private companies comparable to Soufflé Therapeutics
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
Johnson & JohnsonUnited StatesUnited StatesPublicly listed$94B$40B$658B6.8x
RocheSwitzerlandSwitzerlandPublicly listed$77B$26B$391B5.4x
Biosplice TherapeuticsUnited StatesSan Diego, CAPrivate--$12B-
Biomat USAUnited StatesLos Angeles, CAPrivate--$4.2B-
ArsenalBioUnited StatesUnited StatesPrivate--$1.9B-
BioRay PharmaceuticalsChinaShanghaiPrivate$131M-$1.9B14.5x

Soufflé Therapeutics Public Comps

Soufflé Therapeutics is still privately-owned, but its public comps include Eli Lilly, Samsung, Johnson & Johnson, AbbVie, Roche, Merck, Novartis, AstraZeneca, Thermo Fisher Scientific and Amgen.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Eli Lilly$65B$28B20.1x15.1x47.1x32.2x
Samsung$250B$69B3.8x1.9x13.8x3.4x
Johnson & Johnson$94B$40B7.3x6.8x17.1x18.6x
AbbVie$61B$17B9.6x8.8x33.7x18.7x
Roche$77B$26B5.5x5.4x16.2x13.7x
Merck$65B$28B6.4x6.2x14.9x23.1x
Novartis$57B$22B6.1x6.1x15.8x14.8x
AstraZeneca$59B$19B5.4x5.1x16.5x14.1x

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Common questions about Soufflé Therapeutics

When was Soufflé Therapeutics founded?Soufflé Therapeutics was founded in 2021.
Where is Soufflé Therapeutics headquartered?Soufflé Therapeutics is headquartered in Boston, MA, United States.
Is Soufflé Therapeutics publicly listed?No, Soufflé Therapeutics is a private, VC-backed company.
How much funding has Soufflé Therapeutics raised?Soufflé Therapeutics has raised $335M across 2 funding rounds.
What was Soufflé Therapeutics' last funding round?Soufflé Therapeutics' last funding round was a $135M Series B in October 2026, led by Juvia Group.
Who are Soufflé Therapeutics' investors?Soufflé Therapeutics' investors include Temasek, Vida Ventures, Polaris Partners, Bessemer Venture Partners, Safar Partners, ARCH Venture Partners, TCG Crossover, Amgen Ventures, Fidelity, Janus Henderson and 4 others.
Which companies are comparable to Soufflé Therapeutics?Companies comparable to Soufflé Therapeutics include Johnson & Johnson, Roche, Biosplice Therapeutics, Biomat USA, ArsenalBio and BioRay Pharmaceuticals.

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