Ditto Biosciences
YC W26 · Active · Evolutionary intelligence for autoimmune disease
Competitors
| Company | Category | Status | Program |
|---|---|---|---|
 SFA TherapeuticsShared: autoimmune disease, immune system, drugActiveAI | AI | Active | YCS21 |
 Coral GenomicsShared: autoimmune disease, therapy, createAcquiredOther | Other | Acquired | YCS18 |
 Parallel BioShared: immune system, biology, diseaseActiveAI | AI | Active | YCS21 |
 Pragma Bio (former VastBiome)Shared: autoimmune disease, immune system, bioNot statedAI | AI | Not stated | Plug and Play |
 Trident BioscienceShared: protein structure, these, drug discovery and deliveryInactiveAI | AI | Inactive | YCS20 |
Adjacent
| Company | Category | Status | Program |
|---|---|---|---|
 Epana BioShared: autoimmune disease, therapyNot statedOther | Other | Not stated | SPC2025 |
 Entelexo BiotherapeuticsShared: autoimmune disease, drugActiveOther | Other | Active | YCW21 |
 Harmonic DiscoveryShared: protein, disease, computationalActiveAI | AI | Active | YCS21 |
 Output BiosciencesShared: biology, intelligence, systemActiveAI | AI | Active | YCS21 |
 Pardes BiosciencesShared: viruses, drugPublicOther | Other | Public | YCS20 |
Also from W26 in AI
All of W26| Company | Category | Status |
|---|---|---|
 /dev/fast/dev/fast is the AI-native code forgeActiveAI, Devtools | AI, Devtools | Active |
 10x ScienceThe AI-native platform for next-generation protein characterization.ActiveAI | AI | Active |
 21stUI building blocks for the agentic internetActiveAI, Devtools | AI, Devtools | Active |
 AemonThe Forward-Deployed AI Research EngineerActiveAI, Devtools | AI, Devtools | Active |
 Agentic FabriqThe control plane for AI agents.ActiveAI | AI | Active |
 Alt-XBuilding the best venue for private markets exposure.ActiveAI, Data | AI, Data | Active |
Founders
- Dennis SunFounder/CEO
- Adair BorgesFounder
- Emily WeissFounder
About Ditto Biosciences
Ditto Bio discovers drugs for autoimmune diseases by harnessing parasite biology. Viruses, ticks, and worms have experimented over millions of years to create proteins that control the human immune system. We use AI to identify these proteins and engineer them into next-generation autoimmune therapies. Our team is three PhD scientists from UCSF, UCSD, and UC Berkeley who have worked together for 3+ years in biotech. We have deep expertise in parasite biology, computational biology, and software for AI-based protein structure prediction
- YC batch
- W26 · Winter 2026
- Status, per YC
- Active
- Category
- AI
- Team size
- 3
- Location
- San Francisco, CA, USA
- Founded
- 2025
- Checked
- 1h ago
Ditto Biosciences: questions
Which YC batch was Ditto Biosciences in?
Ditto Biosciences was in Y Combinator's Winter 2026 batch (W26).
Is Ditto Biosciences still active?
Y Combinator lists Ditto Biosciences as active.
Who founded Ditto Biosciences?
Ditto Biosciences's founders, as listed on its YC page: Dennis Sun (Founder/CEO), Adair Borges (Founder), Emily Weiss (Founder).
Where is Ditto Biosciences based?
Ditto Biosciences lists San Francisco, CA, USA as its location on YC's directory.
Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.