Sector portfolio · VC firm · United States
Domain Associates' Biotech portfolio
Domain Associates has backed 33 Biotech startups in rounds we track, $2.8B between them, shown by the stage each has reached. The best-funded is Atyr Pharma.
33startups backed
5stages
$2.8Braised between them
Series C and laterbiggest stage
Funding by segment
- Series C and later$1.3B12
- Stage not reported$532M8
- Series B$391M7
- Growth$467M3
- Series A$145M3
Where they are based
- United States31$2.6B
- Canada2$177M
United States
CanadaFounded
22Earlier
212
113
14
115
16
17
118
19
20
21
22
23
24
25
26
6 without a founding year on record.
Total raised
- Under $1M0
- $1M to $10M1
- $10M to $50M11
- $50M to $250M21
- $250M to $1B0
- $1B and over0
Each dot is a startup: the year it was founded across, the total it has raised up (each line is ten times the one below). Pick a segment to pick it out.
27 of 33 startups shown; the rest have no founding year or amount on record.
- 1 to 2
- 3 to 7
- 8 to 24
- 25 to 99
- 100 and more
- United States31
- Canada2
Startups by country, 2 countries in all.
Segment by segment
Series C and later
12 startups · $1.3B raised
aTyr PharmaaTyr Pharma (Nasdaq: LIFE) is a biotherapeutics company engaged in the discovery and development of innovative medicines based on United States$181M- RBRegado BiosciencesRegado Biosciences develops antithrombotic drug systems for acute and sub-acute cardiovascular and other indications.United States$177M
ReVision OpticsReVision Optics offers PRESBYLENS, a refractive surgery solution to correct vision loss by the natural aging process.United States$172M
IntegenXIntegenX designs, manufactures and markets automation systems facilitating reliable micro sample preparation and analysis.United States$161M
Aspen NeuroscienceAspen Neuroscience is a biotechnology company that specializes in personalized cell therapies.United States$122M
Sera PrognosticsSera Prognostics develops blood tests that are predictive of preterm birth, preeclampsia, and other pregnancy complications.United States$107M
Truvian SciencesTruvian Sciences develops an automated benchtop system to provide lab-accurate blood testing results.United States$101M
CellBiosciencesProteinSimple develops and commercializes proprietary systems and consumables for protein analyzis.United States$85M
Stage not reported
8 startups · $532M raised
CelladonCelladon is a biotechnology company developing molecular therapies for the treatment of heart failure.United States$172M- SSebaciaSebacia is a commercial-stage dermatology company that develops an alternative to the topical and systemic drugs for the treatment of acne.United States$102M
Somaxon PharmaceuticalsSomaxon Pharmaceuticals is a growing specialty pharmaceutical company dedicated to commercializing proprietary branded prescriptioUnited States$94M
Meritage PharmaMeritage Pharma develops prescription products for the treatment of gastrointestinal and atopic diseases.United States$59MChromaCodeChromaCode is a molecular diagnostics company focusing on bioinformatics.United States$44M
- STSonexa TherapeuticsUnited States$41M
- HHelixisHelixis, Inc.United States$17M
- NBNina BiotherapeuticsNina Biotherapeutics develops therapies to combat cachexia in cancer patients.United States$3.5M
Series B
7 startups · $391M raised
Milestone PharmaceuticalsMilestone Pharmaceuticals is a drug development company developing small molecule therapeutics for the treatment of cardiovascular diseases.Canada$110M
Atara BiotherapeuticsAtara Biotherapeutics (Nasdaq: ATRA) is an off-the-shelf, allogeneic T-cell immunotherapy company.United States$69M- XXagenicXagenic is a molecular diagnostics company developing on-demand molecular testing, facilitating faster treatment decisions for patients.Canada$67M
- ABAxial BiotherapeuticsUnited States$54M
NovaDigm TherapeuticsNovaDigm Therapeutics develops vaccines that protect patients from contracting fungal and bacterial infections.United States$35M- WWindMLUnited States$33M
- AAdynxxUnited States$24M
Growth
3 startups · $467M raised
Epic SciencesEpic Sciences is a diagnostics company improving cancer management by providing real-time biopsy material to guide personalized medicine.United States$165M
GI DynamicsGI Dynamics is a medical device company developing therapies for the treatment of type 2 diabetes and related metabolic diseases.United States$156M- FPFive Prime TherapeuticsFivePrime is a clinical-stage biotechnology company that develops treatments for cancers.United States$146M
Series A
3 startups · $145M raised
- CTCoDa TherapeuticsUnited States$78M
OptherionOptherion, Inc., a biotechnology company, develops diagnostic and disease-modifying therapeutics for the management and treatment United States$42M
Sequel PharmaceuticalsSequel Pharmaceuticals develops and commercializes novel and clinical-stage drug candidates for patients with cardiovascular disease.United States$25M
How this map is made. Every startup here works in Biotech and has raised money in a round we track that names Domain Associates as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.
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