# Kleiner Perkins Caufield & Byers' Biotech Investments: 26 Startups in Its Portfolio (2026) > The 26 Biotech startups Kleiner Perkins Caufield & Byers has backed, by stage: $2.7B raised between them. From the rounds we track; updated nightly. Source: https://millionrounds.com/portfolio-maps/kleiner-perkins-caufield-and-byers-biotech-portfolio (Millionrounds; every figure on the page links to its filing or article) ## Stage not reported 11 - [Epizyme](https://millionrounds.com/company/epizyme) - [Celladon](https://millionrounds.com/company/celladon) - [True North Therapeutics](https://millionrounds.com/company/true-north-therapeutics) - [NeuroPace](https://millionrounds.com/company/neuropace) - [EdeniQ](https://millionrounds.com/company/edeniq) - [*AB* ARMO BioSciences](https://millionrounds.com/company/armo-biosciences) - [*N* Nuna](https://millionrounds.com/company/nuna) - [Flexus Biosciences](https://millionrounds.com/company/flexus-biosciences) - [Kinsa](https://millionrounds.com/company/kinsa) - [Nodality](https://millionrounds.com/company/nodality) - [Genscript Technology](https://millionrounds.com/company/genscript-technology) ## Series C and later 6 - [*ZL* Zai Lab](https://millionrounds.com/company/zai-lab) - [*3B* 3-V Biosciences](https://millionrounds.com/company/3-v-biosciences) - [Elcelyx Therapeutics](https://millionrounds.com/company/elcelyx-therapeutics) - [Renmatix](https://millionrounds.com/company/renmatix) - [*KC* Kit Check](https://millionrounds.com/company/kit-check) - [Xcellerex](https://millionrounds.com/company/xcellerex) ## Series B 4 - [Noom](https://millionrounds.com/company/noom) - [Atara Biotherapeutics](https://millionrounds.com/company/atara-biotherapeutics) - [*JB* Juvaris BioTherapeutics](https://millionrounds.com/company/juvaris-biotherapeutics) - [*P* Progyny](https://millionrounds.com/company/progyny) ## Growth 3 - [*LH* Livongo Health](https://millionrounds.com/company/livongo-health) - [*FP* Five Prime Therapeutics](https://millionrounds.com/company/five-prime-therapeutics) - [*A* Accumetrics](https://millionrounds.com/company/accumetrics) ## Series A 2 - [*E* Expansion](https://millionrounds.com/company/expansion) - [iZumi Bio](https://millionrounds.com/company/izumi-bio) ## Segment by segment ### Stage not reported 11 startups · $1.2B raised - [**Epizyme**](https://millionrounds.com/company/epizyme) Epizyme is a biopharmaceutical company focusing on treatments for blood cancer and tumors. United States $332M - [**Celladon**](https://millionrounds.com/company/celladon) Celladon is a biotechnology company developing molecular therapies for the treatment of heart failure. United States $172M - [**True North Therapeutics**](https://millionrounds.com/company/true-north-therapeutics) True North Therapeutics is a pioneering biotechnology company selectively inhibiting the Complement pathway for diseases. United States $142M - [**NeuroPace**](https://millionrounds.com/company/neuropace) NeuroPace develops and markets implantable devices for the treatment of neurological disorders. United States $141M - [**EdeniQ**](https://millionrounds.com/company/edeniq) Edeniq is a leading biotechnology company that develops processes for producing and measuring cellulosic ethanol from corn kernel fiber. United States $119M - [*AB* **ARMO BioSciences**](https://millionrounds.com/company/armo-biosciences) ARMO Biosciences is a biotechnology company that develops immune modulatory biologic therapeutics. United States $117M - [*N* **Nuna**](https://millionrounds.com/company/nuna) United States $90M - [**Flexus Biosciences**](https://millionrounds.com/company/flexus-biosciences) Flexus Biosciences is a biotechnology company based in San Carlos, California, founded in 2013. United States $53M ### Series C and later 6 startups · $741M raised - [*ZL* **Zai Lab**](https://millionrounds.com/company/zai-lab) China $310M - [*3B* **3-V Biosciences**](https://millionrounds.com/company/3-v-biosciences) United States $146M - [**Elcelyx Therapeutics**](https://millionrounds.com/company/elcelyx-therapeutics) Elcelyx Therapeutics is developing nutrient sensing-based products for weight management and obesity-related metabolic disorders. United States $117M - [**Renmatix**](https://millionrounds.com/company/renmatix) Renmatix is a plant ingredient innovation company that specializes in converting biomass into sustainable materials using its prop United States $89M - [*KC* **Kit Check**](https://millionrounds.com/company/kit-check) United States $48M - [**Xcellerex**](https://millionrounds.com/company/xcellerex) Xcellerex is a supplier of manufacturing technologies, developing and producing biomanufacturing systems and production-scale bioreactors. United States $31M ### Series B 4 startups · $234M raised - [**Noom**](https://millionrounds.com/company/noom) Noom is a prominent digital health company based in New York City, founded in 2008 by Saeju Jeong and Artem Petakov. United States $86M - [**Atara Biotherapeutics**](https://millionrounds.com/company/atara-biotherapeutics) Atara Biotherapeutics (Nasdaq: ATRA) is an off-the-shelf, allogeneic T-cell immunotherapy company. United States $69M - [*JB* **Juvaris BioTherapeutics**](https://millionrounds.com/company/juvaris-biotherapeutics) Juvaris BioTherapeutics develops adjuvanted vaccines and immunotherapeutics to treat cancer and infectious diseases. United States $55M - [*P* **Progyny**](https://millionrounds.com/company/progyny) United States $25M ### Growth 3 startups · $444M raised - [*LH* **Livongo Health**](https://millionrounds.com/company/livongo-health) United States $188M - [*FP* **Five Prime Therapeutics**](https://millionrounds.com/company/five-prime-therapeutics) FivePrime is a clinical-stage biotechnology company that develops treatments for cancers. United States $146M - [*A* **Accumetrics**](https://millionrounds.com/company/accumetrics) Accumetrics develops, manufactures, and markets the VerifyNow System, a suite of assays for the assessment of platelet function United States $111M ### Series A 2 startups · $75M raised - [*E* **Expansion**](https://millionrounds.com/company/expansion) United States $55M - [**iZumi Bio**](https://millionrounds.com/company/izumi-bio) IZumi Bio, a biotechnology company, employs cellular reprograming for the development of stem cell-based therapeutics. United States $20M **How this map is made.** Every startup here works in Biotech and has raised money in a round we track that names Kleiner Perkins Caufield & Byers as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Sector portfolio **Kleiner Perkins Caufield & Byers' IT Services portfolio** 21 startups · $1.6B](https://millionrounds.com/portfolio-maps/kleiner-perkins-caufield-and-byers-it-services-portfolio)[Sector portfolio **Kleiner Perkins Caufield & Byers' Software portfolio** 12 startups · $1.0B](https://millionrounds.com/portfolio-maps/kleiner-perkins-caufield-and-byers-software-portfolio)[Sector portfolio **Kleiner Perkins Caufield & Byers' Big Data & Analytics portfolio** 11 startups · $1.2B](https://millionrounds.com/portfolio-maps/kleiner-perkins-caufield-and-byers-big-data-analytics-portfolio)[Sector portfolio **Kleiner Perkins Caufield & Byers' AI portfolio** 11 startups · $1.2B](https://millionrounds.com/portfolio-maps/kleiner-perkins-caufield-and-byers-ai-portfolio)[Sector portfolio **Kleiner Perkins Caufield & Byers' Internet portfolio** 10 startups · $5.7B](https://millionrounds.com/portfolio-maps/kleiner-perkins-caufield-and-byers-internet-portfolio)[Co-investors **Who invests with Kleiner Perkins Caufield & Byers** 370 co-investors](https://millionrounds.com/portfolio-maps/kleiner-perkins-caufield-and-byers-co-investors) ## Raising from investors like Kleiner Perkins Caufield & Byers? 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