Biotech pharma

Granza Bio

Website

Granza Bio is developing programmable therapeutics for the immune system. Our platform is built on the foundational discovery of immune “superkiller” attack particles — the natural ammunition used by cytotoxic immune cells to deliver potent, localized killing. By re-arming exhausted immune cells with newly programmed ammunition, Granza restores and

Founded 2024Origin source ↗Checked 2026-09-15

Overview

Granza Bio is developing programmable therapeutics for the immune system. Our platform is built on the foundational discovery of immune “superkiller” attack particles — the natural ammunition used by cytotoxic immune cells to deliver potent, localized killing. By re-arming exhausted immune cells with newly programmed ammunition, Granza restores and enhances immune function. This approach enables a new class of treatments with the potential to transform diseases ranging from cancer to autoimmunity.

Company description As recorded 2026-11-08

Founders & team

Previously Zyme Therapeutics

Company history As recorded 2026-11-08

Ashwin Nandakumar

Founder/CEO

Ashwin completed his PhD (DPhil) in Oncology at the University of Oxford. After completing his PhD, he began working as a Cancer Research UK post-doctoral researcher at Oxford University and also at the Institute of Cancer Research (ICR), London. He also brings experience setting up oncology clinical trials and working in oncology start-ups.

Founder profile As recorded 2026-09-15

Ashwin Jainarayanan

Founder

Granza Bio, DPhil (PhD) in Interdisciplinary Bioscience - University of Oxford

Founder profile As recorded 2026-09-15
8team members reported
Source-reported As recorded 2026-09-15

Founded 2024 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthverified profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedSan Francisco, CA, USA
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The retained text does not establish product availability or customer use.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationreachable websitedescriptive evidenceclassified market and modelsourced peoplesourced founding year