LONGEFI
Companies

Who is building the longevity field

Company profiles focus on technology, evidence and scientific position. We do not value companies or rate them as investments.

Altos Labs

Private

Cellular reprogramming

Research-first company pursuing partial epigenetic reprogramming to restore cell health and function. Heavily funded, deliberately pre-clinical, and publishing in the open literature rather than racing to a single asset.

Strengthening

Cellular reprogramming, autophagy

Focused company targeting ten additional years of healthy human lifespan through reprogramming, plasma-inspired interventions and autophagy restoration.

Watch

Senolytics

Clinical-stage company developing medicines that selectively clear senescent cells, historically focused on ophthalmology and localized delivery.

EvidenceModerateSenolytics
Stable

Immune-mediated senescent cell clearance

Develops small molecules that recruit the innate immune system to clear senescent cells rather than killing them directly.

EvidenceEarlySenolytics

Selective senolytic prodrugs

Uses a chemistry platform to design prodrugs activated inside senescent cells, aiming for tissue-selective clearance.

EvidenceEarlySenolytics

In vivo CRISPR gene editing

Clinical-stage genome editing company with in vivo CRISPR programmes in amyloidosis and hereditary angioedema.

EvidenceStrongGene therapy
Strengthening

Base editing

Precision genetic medicine company using base editing to make single-letter DNA changes without double-strand breaks.

EvidenceModerateGene therapy
Stable

Partial epigenetic reprogramming (OSK)

Advancing partial reprogramming toward the clinic with an initial focus on optic neuropathy.

EvidenceEarlyEpigenetics

Computational reprogramming discovery

Uses virtual cell models to search for reprogramming factor sets that rejuvenate cells without erasing identity.

EvidenceEarlyAI drug discovery
Strengthening

Generative AI drug discovery

Generative chemistry and target discovery company with clinical assets originating from its AI platform.

EvidenceModerateAI drug discovery
Strengthening

NAD+ precursors

Developing pharmaceutical-grade NAD+ precursors intended to be tested as drugs rather than supplements.

EvidenceModerateNAD+

Nicotinamide riboside (consumer NAD+)

Consumer-facing NAD+ precursor business with an associated clinical research programme.

EvidenceEarlyNAD+
Watch

Alternative splicing / stem cell modulation

Targets splicing regulation to influence progenitor cell behaviour, with lead work in osteoarthritis.

EvidenceModerateStem cells

iPSC-derived cell therapy

Engineered cell therapies derived from induced pluripotent stem cells, with a lead Parkinson's programme.

EvidenceModerateStem cells

mTOR inhibition / immune aging

Developing selective TORC1 inhibitors intended to improve immune function in older adults.

EvidenceEarlymTOR
Watch

Immunis

Private

Immune secretome therapy

Develops an immune-modulating secretome intended to counter age-related muscle and immune decline.

EvidenceEarlyImmunology

Metabolic health measurement and therapeutics

Combines continuous metabolic measurement with a therapeutics pipeline targeting insulin resistance in aging.

EvidenceModerateMetabolic health
Strengthening

Allogeneic macrophage-reprogramming cell therapy

Clinical-stage company developing Allocetra, an allogeneic cell therapy intended to reprogram macrophages toward immune homeostasis. Company-reported development includes an FDA Regenerative Medicine Advanced Therapy designation in knee osteoarthritis.

EvidenceEarlyImmunology

Antisense oligonucleotide (ASO)

Neuroscience company developing diranersen (BIIB080 / IONIS-MAPTRx), an antisense oligonucleotide designed to target MAPT mRNA and reduce tau production, evaluated in the Phase 2 CELIA study in early Alzheimer's disease.

EvidenceEarlyGene therapy

Antisense oligonucleotide (ASO)

RNA-targeted medicines company whose antisense platform discovered diranersen (IONIS-MAPTRx / BIIB080), a MAPT-directed antisense oligonucleotide for Alzheimer's disease; Biogen exercised its licence option and holds a worldwide exclusive royalty-bearing licence to develop and commercialise it.

EvidenceEarlyGene therapy

Oligonucleotide Transport Vehicle (OTV), blood-brain barrier delivery

Neurodegeneration company applying its Oligonucleotide Transport Vehicle to cross the blood-brain barrier; DNL628 (OTV:MAPT) is designed to reduce tau through MAPT targeting in Alzheimer's disease.

EvidenceEarlyGene therapy