Protego Biopharma Funding, Investors & Competitors

Protego Biopharma has raised $181M across 2 funding rounds, most recently a $130M Series B in December 2025.

Last Protego Biopharma funding round

$130M

Series B · Dec 2025

Cumulative funding Protego Biopharma raised

$181M

across 2 funding rounds

Key investors in Protego Biopharma

  • Lightspeed Venture Partners
  • MPM Capital
  • Vida Ventures
  • Novartis Venture Fund
  • Forbion Capital Partners
  • Omega Funds
  • Digitalis Ventures
  • Droia Ventures

Protego Biopharma Overview

About Protego Biopharma

Protego Biopharma is a biotechnology firm developing small-molecule pharmacological chaperones for protein misfolding diseases. Its lead candidate, PROT-001, targets AL amyloidosis by stabilizing immunoglobulin light chains to prevent organ damage. Headquartered in the United States, the company applies its platform to myopathies, cardiomyopathies, and retinal disorders, leveraging genetics and biomarkers for target selection and trial monitoring.


Founded

2011

HQ

United StatesSan Diego, CA

Status

Privately held

Customer focus

B2B

Revenue model

Licensing

Protego Biopharma Funding History

Protego Biopharma has raised a total of $181M across 2 funding rounds.

Protego Biopharma's first fundraising round was a $51M Series A in October 2021. The most recent completed round was a $130M Series B in December 2025.

Protego Biopharma funding rounds

Protego Biopharma funding rounds
DateStageInvestorsRaisedDeal Summary
Dec 2025Series BForbion Capital Partners (lead); Novartis Venture Fund (lead); Vida Ventures; Droia Ventures; Digitalis Ventures; YK Bioventures; MPM Capital; Scripps Research; Lightspeed Venture Partners; Omega Funds$130MProtego Biopharma is a San Diego-based clinical-stage biotechnology company developing first-in-class small-molecule therapeutics that reprogram protein folding to treat systemic amyloid diseases and other protein misfolding disorders, with a primary focus on light chain (AL) amyloidosis. The company's lead candidate, PROT-001, is a pharmacological chaperone designed to bind a cryptic site on misfolded light chain proteins, stabilizing them to prevent amyloid fibril formation and enable natural clearance by the body, potentially offering a disease-modifying therapy ahead of current standards that rely on cancer drugs. On December 1, 2025, Protego announced an oversubscribed $130 million Series B financing round co-led by Novartis Venture Fund and Forbion Capital Partners, matching the specified investors including new participants Omega Funds, Droia Ventures, YK Bioventures, and Digitalis Ventures, alongside existing backers Vida Ventures, MPM BioImpact (also referred to as MPM Capital), Lightspeed Venture Partners, and Scripps Research. The proceeds will fund advancement of PROT-001 into pivotal clinical trials, as the company has not yet reported Phase 1 data but aims to address high unmet needs in AL amyloidosis, a rare fatal condition driven by excess misfolded light chains depositing in organs like the heart. Protego builds on research from scientific co-founder Jeffery Kelly of Scripps Research, an expert in protein misfolding who co-founded FoldRx, whose stabilized protein drug for transthyretin amyloidosis (now Pfizer's Vyndamax) generates billions in sales. The company previously raised $51 million in a Series A round in 2021 and maintained a low profile until securing this Series B under new CEO Brent Warner, formerly of Poseida Therapeutics. Protego's approach differentiates from competitors like Prothena and AstraZeneca, whose amyloid-clearing drugs failed in late-stage studies, by intervening early to prevent toxic protein accumulation. Beyond AL amyloidosis, Protego targets protein misfolding implicated in myopathy, cardiomyopathy, stroke, renal disease, retinal diseases, channelopathies, and degenerative conditions, positioning for broader applications. The round underscores investor confidence in the platform amid a mixed 2025 biopharma funding environment, where December saw $9.08 billion in total financings.
Oct 2021Series ALightspeed Venture Partners (lead); MPM Capital (lead); Vida Ventures (lead)$51MProtego Biopharma is a clinical-stage biotechnology company founded in 2018 and based in San Diego, California, dedicated to developing first-in-class small molecule therapeutics that reprogram protein folding to treat systemic amyloid diseases and other protein misfolding disorders. The company's lead candidate, PROT-001, is designed to treat amyloid light-chain (AL) amyloidosis, a rare and potentially fatal condition where abnormal plasma cells produce excess light chain proteins that misfold and deposit in organs including the heart. PROT-001 works by stabilizing immunoglobulin light chains to prevent amyloid buildup, targeting the root cause rather than managing symptoms. Protego completed a Series A financing round on November 17, 2021, raising $51 million led by Lightspeed Venture Partners, Vida Ventures, and MPM Capital to support advancement of the treatment of protein misfolding diseases. The company has since advanced its technology platform based on pioneering work from Scripps Research labs and maintained a low profile until securing additional financing. In December 2025, Protego announced a $130 million Series B financing round led by Novartis Venture Fund and Forbion, with participation from new investors including Omega Funds, Droia Ventures, YK Bioventures, and Digitalis Ventures, as well as continued backing from Series A investors. With Series B capital, Protego is positioned to advance PROT-001 into pivotal clinical trials, with Phase 1 data expected in early 2026 and Phase 2/3 trials planned to begin in late 2026, moving toward delivering the first disease-modifying therapy for AL amyloidosis.

Who has invested in Protego Biopharma?

10 investors have backed Protego Biopharma across its funding rounds, including Lightspeed Venture Partners, MPM Capital, Vida Ventures, Novartis Venture Fund, Forbion Capital Partners and Omega Funds.

Lead investors include Forbion Capital Partners, Novartis Venture Fund, Lightspeed Venture Partners, MPM Capital and Vida Ventures.


Protego Biopharma Investors

Investors in Protego Biopharma by funding rounds participated
InvestorHQRoundsRoleFirst check
Vida VenturesUnited StatesBoston, MA2LeadOct 2021
MPM CapitalUnited StatesBoston, MA2LeadOct 2021
Lightspeed Venture PartnersUnited StatesSan Francisco, CA2LeadOct 2021
Droia VenturesBelgiumZaventem1ParticipantDec 2025
Digitalis VenturesUnited StatesNew York City, NY1ParticipantDec 2025
Novartis Venture FundSwitzerlandBeijing1LeadDec 2025
YK BioventuresUnited StatesUnited States1ParticipantDec 2025
Scripps ResearchUnited StatesSan Diego, CA1ParticipantDec 2025

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Protego Biopharma Competitors

Protego Biopharma 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 Protego Biopharma
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
Johnson & JohnsonUnited StatesUnited StatesPublicly listed$94B$40B$651B6.8x
RocheSwitzerlandSwitzerlandPublicly listed$77B$26B$351B4.9x
Biosplice TherapeuticsUnited StatesSan Diego, CAPrivate--$12B-
Biomat USAUnited StatesLos Angeles, CAPrivate--$4.2B-
ArsenalBioUnited StatesUnited StatesPrivate--$1.9B-
BioRay PharmaceuticalsChinaShanghaiPrivate$131M-$1.9B14.5x

Protego Biopharma Public Comps

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

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Samsung$243B$67B4.4x2.4x15.8x4.4x
Eli Lilly$65B$28B16.5x13.1x38.7x27.0x
Johnson & Johnson$94B$40B7.2x6.8x17.0x18.3x
AbbVie$61B$17B8.7x8.1x30.6x17.6x
Merck$65B$28B6.3x6.2x14.7x21.0x
Roche$77B$26B5.0x4.9x14.6x12.4x
Novartis$57B$22B5.5x5.5x14.2x13.3x
AstraZeneca$59B$19B4.8x4.5x14.6x12.7x

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Common questions about Protego Biopharma

When was Protego Biopharma founded?Protego Biopharma was founded in 2011.
Where is Protego Biopharma headquartered?Protego Biopharma is headquartered in San Diego, CA, United States.
Is Protego Biopharma publicly listed?No, Protego Biopharma is a private, VC-backed company.
How much funding has Protego Biopharma raised?Protego Biopharma has raised $181M across 2 funding rounds.
What was Protego Biopharma's last funding round?Protego Biopharma's last funding round was a $130M Series B in December 2025, led by Forbion Capital Partners and Novartis Venture Fund.
Who are Protego Biopharma's investors?Protego Biopharma's investors include Vida Ventures, MPM Capital, Lightspeed Venture Partners, Droia Ventures, Digitalis Ventures, Novartis Venture Fund, YK Bioventures, Scripps Research, Omega Funds and Forbion Capital Partners.
Which companies are comparable to Protego Biopharma?Companies comparable to Protego Biopharma include Johnson & Johnson, Roche, Biosplice Therapeutics, Biomat USA, ArsenalBio and BioRay Pharmaceuticals.

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