# Nordion (Sotera Health)

Source: https://onco.cc/companies/nordion/  
OnCo record `nordion` (Company). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

Nordion supplies most of the world's cobalt-60, which sterilises single-use bioprocess bags and medical devices and powers Gamma Knife units, and was the largest molybdenum-99 processor until Canada's NRU reactor stopped.

## Summary

Nordion, an Ottawa company owned by Sotera Health, sells cobalt-60 sources harvested from Canadian CANDU power reactors operated by Bruce Power and Ontario Power Generation, used for gamma sterilisation of medical products and single-use bioprocess consumables and for Gamma Knife radiosurgery. Until the NRU reactor at Chalk River ceased isotope production in 2016 it processed a large share of the world's molybdenum-99, and its exit reshaped the supply chain described in the reactor record.

## Fields

- Kind: Company
- Last checked: 2026-09-17
- Tags: manufacturing-wave
- HQ: Ottawa
- Type: radiopharma
- Website: https://www.nordion.com

## Sources

- Official website: https://www.nordion.com

## Connected records

- technologies: [Cobalt-60 teletherapy](https://onco.cc/technologies/cobalt-60-teletherapy/), [Research reactors for medical isotopes (Mo-99, Lu-177, I-131)](https://onco.cc/technologies/research-reactor-isotope-production/), [Single-use bioprocessing systems](https://onco.cc/technologies/single-use-bioprocessing/), [Stereotactic radiosurgery (Gamma Knife, CyberKnife, linac SRS)](https://onco.cc/technologies/radiosurgery-srs/)

---
JSON: https://onco.cc/api/v1/entities/nordion.json