Replay
Reprogramming biology by writing and delivering big DNA
30 employees · est. 2021 · San Diego, United States
VSPARTICLE
At VSPARTICLE, we enable research and industry to generate new materials at the push of a button.
55 employees · est. 2014 · Delft, The Netherlands
VSPARTICLE is the older company (2021 vs 2014); VSPARTICLE is the larger of the two.
Side-by-Side Comparison
| Metric | Replay | VSPARTICLE |
|---|---|---|
| Founded | ||
| Founded | 2021 | 2014 older |
| Headquarters | ||
| Headquarters | San Diego, United States | Delft, The Netherlands |
| Employees | ||
| Employees | 30 | 55 larger |
| Industry | ||
| Industry | Biotechnology, Health and Wellness | Health Care, Life Sciences, Renewable Energy |
| Funding Stage | ||
| Funding Stage | Acquired | Series A |
| Total Funding | ||
| Total Funding | $56.56M | $24.57M |
| Funding Rounds | ||
| Funding Rounds | 5 | 6 |
| Services | ||
| Services | Development of HSV vectors for gene therapy applications, Biomedical research and development | Nanoparticle synthesis and deposition, Spark ablation technology, Open-source catalyst database, Nanoprinting solutions, Material innovation for clean energy |
| Target Customers | ||
| Target Customers | Healthcare Providers, Biotech Companies, Pharmaceutical Companies, Research Institutions | Research and development teams, Universities, Industrial researchers, Clean energy solution providers, Tech companies like Meta |
| Taxonomy | ||
| Taxonomy | Genomic Medicine, Genome Writing, Big DNA Delivery, HSV Platform, Hypoimmunogenic Platform, Gene Therapy, Therapeutic Development, High Payload Capacity, SynHSV Technology, Skin Diseases, Eye Diseases, Brain Diseases, Muscle Diseases, Enzyme Writing, Machine Learning In Genomics | Nanoparticle Production, Nanoparticle Integration, Nanotechnology, Quantum Effects, Spark Ablation, Nano Safety, Catalysis, Sensors, Batteries, Solar Cells, Additive Manufacturing, Gas Sensors, Nanostructured Materials, Nanoparticle Deposition, Thin Films |
| Website | ||
| Website | replay.bio | vsparticle.com |
About Replay
Replay, founded in 2021 and headquartered in the United States, is carving a niche in the Biotechnology and Health and Wellness sectors. The company's slogan, "Reprogramming biology by writing and delivering big DNA," encapsulates its mission to redefine genomic medicine through innovative genome wr...
About VSPARTICLE
VSPARTICLE, originating from a 2014 spin-off of Delft University of Technology, is at the forefront of nanoparticle technology. With a strong belief in the transformative power of nanoparticles, their slogan, "At VSPARTICLE, we enable research and industry to generate new materials at the push of a...
We will tell you when either one moves
BounceWatch watches Replay and VSPARTICLE for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at Replay and VSPARTICLE — by email.
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Compiled from the BounceWatch company index. We last looked at Replay on 9 Jun 2026, and VSPARTICLE on 18 Aug 2025. 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.