About Excellergy
Excellergy is a Boston-based biopharmaceutical company developing trifunctional effector cell response inhibitors for severe allergic conditions like asthma and atopic dermatitis. The platform targets mast cells and basophils with lead candidates in preclinical stages for Phase I trials.
Founded
2020
HQ
Website
Status
Acquired
Customer focus
B2B
Revenue model
Licensing
Valuation
$2B (acquired Mar 2026)
Sectors
Excellergy Acquisition
Excellergy was acquired by Novartis for $2B on 26 March 2026.
Before the acquisition Excellergy had raised $70M across 1 funding round.
| Acquirer | Date | Type | Price |
|---|---|---|---|
| 26 Mar 2026 | Strategic M&A | $2B |
Excellergy Funding History
Excellergy has raised a total of $70M across 1 funding round.
Excellergy funding rounds
| Date | Stage | Investors | Raised | Deal Summary |
|---|---|---|---|---|
| Oct 2025 | Series A | Samsara BioCapital (lead); Decheng Capital; Red Tree Venture Capital | $70M | Excellergy, a Palo Alto-based biotechnology company, emerged from stealth on October 13, 2025, with a $70 million Series A financing round led by Samsara BioCapital, with co-investments from Red Tree Venture Capital and Decheng Capital. The company was founded in 2021 with seed funding from Red Tree Venture Capital and is built on scientific advances in structural binding of IgE to its receptor developed at Stanford University and the University of Bern. Excellergy is developing a first-in-class portfolio of trifunctional Effector Cell Response Inhibitors (ECRIs) designed to deliver complete allergic control by targeting multiple pathways—removing receptor-bound IgE, neutralizing free IgE, and down-regulating FcεRI—with a mechanism distinct from traditional anti-IgE therapies. The company is led by President and CEO Todd Zavodnick, formerly of Dermavant Sciences at Roivant, alongside co-founder and Chief Scientific Officer Geoffrey Harris, Ph.D. (who founded liver-focused Ocelot Bio), and Chief Medical Officer Philip Brown, M.D. (previously at Dermavant). The $70 million Series A funding is intended to support advancement of the company's preclinical portfolio into first-in-human clinical studies, with a lead asset expected to enter human testing in early 2026. Initial development targets include food allergy and chronic spontaneous urticaria. At the time of the Series A announcement, the company was pre-clinical and had not generated commercial revenue. |
Who has invested in Excellergy?
3 investors have backed Excellergy across its funding rounds, including Samsara BioCapital, Decheng Capital and Red Tree Venture Capital.
Lead investors include Samsara BioCapital.
Excellergy Investors
| Investor | HQ | Rounds | Role | First check |
|---|---|---|---|---|
| 1 | Participant | Oct 2025 | ||
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Benchmark 350K+ Funding Rounds and Disclosed VC Valuation Multiples
Sign up to see data on 350K+ funding rounds and disclosed revenue and EBITDA valuation multiples, from seed, through growth stage, to pre-IPO.
Start Free TrialExcellergy Competitors
Excellergy competitors include listed companies like Agios Pharmaceuticals, ADMA Biologics, Rapport Therapeutics and Anhui Anke Biotechnology, and private ones like AtaiBeckley and ArsenalBio.
| Company | HQ | Status | Revenue | EBITDA | Valuation | Revenue Multiple |
|---|---|---|---|---|---|---|
| Private | - | - | $2B | - | ||
| Publicly listed | $54M | ($465M) | $2B | 9.7x | ||
| Publicly listed | $510M | $196M | $2B | 3.9x | ||
| Publicly listed | - | ($124M) | $2B | 110.7x | ||
| Publicly listed | $395M | $142M | $2B | 4.6x | ||
| Private | - | - | $1.9B | - |
Excellergy Public Comps
Excellergy is no longer listed, but its public comps include Agios Pharmaceuticals, ADMA Biologics, Rapport Therapeutics, Anhui Anke Biotechnology, Guobang Pharma, Kalbe Farma, Zymeworks, GH Research, BioKangtai and United Laboratories International.
| Last FY | EV/Revenue | EV/EBITDA | ||||||
|---|---|---|---|---|---|---|---|---|
| Revenue | EBITDA | Last FY | LTM | 2027E | Last FY | LTM | 2027E | |
| $54M | ($465M) | 26.3x | 9.7x | (3.1x) | (3.5x) | |||
| $510M | $196M | 4.1x | 3.9x | 10.6x | 7.8x | |||
| - | ($124M) | - | 110.7x | (12.8x) | (8.7x) | |||
| $395M | $142M | 4.7x | 4.6x | 12.9x | 13.9x | |||
| $896M | $214M | 2.0x | 1.9x | 8.4x | 8.3x | |||
| $2B | $305M | 0.9x | 0.8x | 6.0x | 6.0x | |||
| $106M | ($82M) | 16.1x | 6.8x | (20.9x) | 43.1x | |||
| - | ($53M) | - | - | (30.3x) | (21.8x) | |||
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Common questions about Excellergy
| When was Excellergy founded? | Excellergy was founded in 2020. |
| Where is Excellergy headquartered? | Excellergy is headquartered in San Francisco, CA, United States. |
| Is Excellergy publicly listed? | No, Excellergy was acquired by Novartis in March 2026. |
| Who acquired Excellergy? | Excellergy was acquired by Novartis in March 2026. |
| How much was Excellergy acquired for? | Excellergy was acquired for $2B in March 2026. |
| How much funding has Excellergy raised? | Excellergy has raised $70M across 1 funding round. |
| What was Excellergy's last funding round? | Excellergy's last funding round was a $70M Series A in October 2025, led by Samsara BioCapital. |
| Who are Excellergy's investors? | Excellergy's investors include Decheng Capital, Red Tree Venture Capital and Samsara BioCapital. |
| Which companies are comparable to Excellergy? | Companies comparable to Excellergy include AtaiBeckley, Agios Pharmaceuticals, ADMA Biologics, Rapport Therapeutics, Anhui Anke Biotechnology and ArsenalBio. |
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