Splice Bio Funding, Investors & Competitors

Splice Bio has raised $193M across 3 funding rounds, most recently a $135M Series B in June 2025.

Last Splice Bio funding round

$135M

Series B · Jun 2025

Cumulative funding Splice Bio raised

$193M

across 3 funding rounds

Key investors in Splice Bio

  • New Enterprise Associates
  • Novartis Venture Fund
  • Gilde Healthcare
  • Ysios Capital
  • Asabys Partners
  • UCB Ventures
  • EQT
  • Criteria Venture Tech

Splice Bio Overview

About Splice Bio

SpliceBio is a Barcelona-headquartered biotech company engineering gene therapies using proprietary protein splicing technology to deliver large genes exceeding AAV capacity limits. Pipeline targets Stargardt disease and Duchenne muscular dystrophy with dual-vector systems. Collaborations with foundations advance preclinical candidates toward clinical trials in ophthalmology and neuromuscular disorders.


Founded

2012

HQ

SpainBarcelona

Website

splice.bio

Status

Privately held

Customer focus

B2B

Revenue model

Licensing

Splice Bio Funding History

Splice Bio has raised a total of $193M across 3 funding rounds.

Splice Bio's first fundraising round was a $2M Series A in February 2018. The most recent completed round was a $135M Series B in June 2025.

Splice Bio funding rounds

Splice Bio funding rounds
DateStageInvestorsRaisedDeal Summary
Jun 2025Series BEQT (lead); Sanofi Ventures (lead); Novartis Venture Fund; Roche Venture Fund; New Enterprise Associates; Ysios Capital; UCB Ventures; Gilde Healthcare; Asabys Partners$135MSpliceBio is a Barcelona-based clinical-stage biotechnology company developing gene therapies for genetic diseases using its proprietary Protein Splicing platform, which enables delivery of large genes by splitting them into smaller pieces for AAV vectors and reassembling them into full-length proteins. The platform targets indications in ophthalmology, neurology, and other areas, addressing mutations in large genes that are challenging for traditional gene therapy. In June 2025, SpliceBio closed a $135 million (€119 million) Series B financing round co-led by EQT Life Sciences and Sanofi Ventures, with participation from new investor Roche Venture Fund and all existing investors including New Enterprise Associates, UCB Ventures, Ysios Capital, Gilde Healthcare, Novartis Venture Fund, and Asabys Partners. This marked the largest funding round to date for a healthcare startup in Spain. Proceeds will fund the Phase 1/2 clinical trial (ASTRA study) of lead candidate SB-007 for Stargardt disease, a hereditary retinal disorder causing progressive vision loss with no approved treatments, as well as advance the broader pipeline including the observational POLARIS study. The round underscores strong investor confidence in SpliceBio's intein-based technology, previously licensed to Roche's Spark Therapeutics for $216 million in October 2023. CEO Miquel Vila-Perelló highlighted the financing as a pivotal milestone to progress SB-007 and expand the pipeline, positioning the company to lead in genetic medicines for untreatable diseases. Investors like Sanofi Ventures praised the platform's potential to overcome key gene therapy challenges and deliver best-in-class therapies.
Feb 2022Series AUCB Ventures (lead); Ysios Capital (lead); Novartis Venture Fund; New Enterprise Associates; Gilde Healthcare; Asabys Partners$56MSpliceBio is a biotechnology company based in Barcelona, Spain, developing next-generation gene therapies using a protein splicing platform that enables efficient delivery of large genes via adeno-associated virus (AAV) vectors, addressing limitations in packaging capacity for genes exceeding 4.7 kilobases. The platform targets genetic diseases like Stargardt disease, the most common form of juvenile macular dystrophy affecting over 80,000 people in the US and EU, caused by mutations in the oversized ABCA4 gene. On February 16, 2022, SpliceBio closed an oversubscribed €50 million ($57 million) Series A financing, the largest such round for a Spanish biotech, co-led by UCB Ventures and Ysios Capital, with participation from new investors New Enterprise Associates (NEA), Gilde Healthcare, and Novartis Venture Fund, plus existing shareholder Asabys Partners. The company had been seeded in 2020 by Ysios Capital and Asabys Partners. Proceeds from the Series A will fund the build-out of a pipeline of protein splicing gene therapy programs and advance the lead candidate for Stargardt disease into clinical trials, with initial focus on ophthalmology and expansion to other high-unmet-need areas. The platform has been validated in vivo across multiple organs beyond the retina. Following the round, SpliceBio's board, chaired by Jean Philippe Combal, includes representatives from UCB Ventures, Ysios Capital, NEA, Gilde Healthcare, Novartis Venture Fund, and CEO Miquel Vila-Perelló. Investors highlighted the platform's potential to expand treatable genetic diseases and validated the Barcelona biotech ecosystem. SpliceBio later raised a $135 million Series B on June 11, 2025, co-led by EQT Life Sciences and Sanofi Ventures, with Roche Venture Fund and all prior investors, to advance SB-007 in Stargardt disease through clinical development and expand the pipeline into neurology.
Feb 2018Series ACriteria Venture Tech (lead)$2M-

Who has invested in Splice Bio?

10 investors have backed Splice Bio across its funding rounds, including New Enterprise Associates, Novartis Venture Fund, Gilde Healthcare, Ysios Capital, Asabys Partners and UCB Ventures.

Lead investors include EQT, Sanofi Ventures, UCB Ventures, Ysios Capital and Criteria Venture Tech.


Splice Bio Investors

Investors in Splice Bio by funding rounds participated
InvestorHQRoundsRoleFirst check
Novartis Venture FundSwitzerlandBeijing2ParticipantFeb 2022
New Enterprise AssociatesUnited StatesSan Francisco, CA2ParticipantFeb 2022
Ysios CapitalSpainSan Sebastián2LeadFeb 2022
UCB VenturesBelgiumBrussels2LeadFeb 2022
Gilde HealthcareNetherlandsNetherlands2ParticipantFeb 2022
Asabys PartnersSpainBarcelona2ParticipantFeb 2022
EQTSwedenStockholm1LeadJun 2025
Roche Venture FundSwitzerlandSwitzerland1ParticipantJun 2025

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Splice Bio Competitors

Splice Bio 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 Splice Bio
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

Splice Bio Public Comps

Splice Bio 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 Splice Bio

When was Splice Bio founded?Splice Bio was founded in 2012.
Where is Splice Bio headquartered?Splice Bio is headquartered in Barcelona, Spain.
Is Splice Bio publicly listed?No, Splice Bio is a private, VC-backed company.
How much funding has Splice Bio raised?Splice Bio has raised $193M across 3 funding rounds.
What was Splice Bio's last funding round?Splice Bio's last funding round was a $135M Series B in June 2025, led by EQT and Sanofi Ventures.
Who are Splice Bio's investors?Splice Bio's investors include Novartis Venture Fund, New Enterprise Associates, Ysios Capital, UCB Ventures, Gilde Healthcare, Asabys Partners, EQT, Roche Venture Fund, Criteria Venture Tech and Sanofi Ventures.
Which companies are comparable to Splice Bio?Companies comparable to Splice Bio include Johnson & Johnson, Roche, Biosplice Therapeutics, Biomat USA, ArsenalBio and BioRay Pharmaceuticals.

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