Phosphorex Email Format

Nanotechnology ResearchMassachusetts, United States0-1 Employees

Phosphorex operates in nanotechnology research, developing and supplying microspheres and nanospheres for scientific and biomedical work. The company offers a range of spheres, including pure polymer, fluorescent, phosphorescent, and colored variants, with diameters from 20 nanometers to 1,000 microns. Many particles are surface-modified to enable attachment to biomolecules, and the firm provides custom microspheres and bioconjugation services, including encapsulation of dyes, drugs, and other molecules according to customer specifications.

Headquartered in Hopkinton, Massachusetts, Phosphorex serves researchers pursuing ultra-sensitive assays, multiplex detection, in vitro and in vivo imaging, and drug delivery research. It operates in the nanomaterials and biomedical research sector, offering both standard products and tailored solutions. In 2026, leadership changes included John Rigg being promoted to chairman of the board as part of growth tied to demand for advanced drug-delivery expertise, and the company participated in industry events such as the ASGCT Annual Meeting.

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