Broken String Biosciences
Turning breaks into breakthroughs
35 employees · est. 2020 · Cambridge, United Kingdom
Poseida Therapeutics, Inc.
A Member of the Roche Group
81 employees · est. 2014 · San Diego, United States
Poseida Therapeutics, Inc. is the older company (2020 vs 2014); Poseida Therapeutics, Inc. is the larger of the two.
Side-by-Side Comparison
| Metric | Broken String Biosciences | Poseida Therapeutics, Inc. |
|---|---|---|
| Founded | ||
| Founded | 2020 | 2014 older |
| Headquarters | ||
| Headquarters | Cambridge, United Kingdom | San Diego, United States |
| Employees | ||
| Employees | 35 | 81 larger |
| Industry | ||
| Industry | Biotechnology, Health Care | Biopharma, Biotechnology, Health and Wellness |
| Funding Stage | ||
| Funding Stage | Series A | Acquired |
| Total Funding | ||
| Total Funding | $23.65M | $1.88B |
| Funding Rounds | ||
| Funding Rounds | 6 | 9 |
| Services | ||
| Services | Genome-wide on- and off-target analysis, Rapid detection of gene editing-induced breaks, Support for guide screening and optimization, Integrated bioinformatics, Sequencing and data analysis | Cell Therapy Development, Molecule Development, Patient Support Services, Clinical Trials Management, Scientific Research and Publications |
| Target Customers | ||
| Target Customers | Therapy Developers, Biotechnology Researchers, Pharmaceutical Companies, Genomics Laboratories, Regulatory Bodies | Patients, Medical Professionals, Pharmaceutical Partners, Scientists, Healthcare Media |
| Taxonomy | ||
| Taxonomy | NGS-based DNA Break Mapping, Genome Stability Assessment, Cell And Gene Therapy, Off-target Genetic Edits Analysis, Gene Editing Specificity, Genetic Outcomes Evaluation, Pre-clinical Development Insights, Clinical Development Support, Innovative Medicine Development, Sequencing Tools, Data-driven Insights, Genomic Research Technology, Biotechnology Innovation, Platform Development | Allogeneic Cell Therapies, Genetic Medicines, Genome Engineering, CAR-T Products, Gene Editing, Non-viral DNA Delivery, Site-Specific Gene Editing System, Chimeric Antigen Receptor, Immunotherapy, Regenerative Medicine, Hematological Malignancies, Solid Tumors, Proprietary Genetic Platforms, In-house GMP Manufacturing, Oncology |
| Website | ||
| Website | brokenstringbio.com | poseida.com |
About Broken String Biosciences
Broken String Biosciences, founded in 2020, is a UK-based biotechnology startup revolutionizing the cell and gene therapy landscape. Their innovative technology platform, INDUCE-seq®, aims to transform potential genetic "breaks" into groundbreaking therapies, aligning with their slogan, "Turning bre...
About Poseida Therapeutics, Inc.
Poseida Therapeutics, Inc., now a Member of the Roche Group, is a clinical-stage biopharmaceutical company based in the United States. Initially founded in 2014, Poseida was acquired by Roche in early 2025, reinforcing its position in the biopharma and biotechnology industries. Pioneering in alloge...
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Compiled from the BounceWatch company index. We last looked at Broken String Biosciences on 15 Jun 2026, and Poseida Therapeutics, Inc. on 3 Jul 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.