The global irradiation sterilization market is currently worth over $3 billion and is on track to reach $5.3 billion by 2030, with a compound annual growth rate ranging from 11.8% to 13% depending on the analytical methodology used. Steris is the undisputed sector leader, holding a 13% market share, followed by Sotera Health and Sterigenics.
Irradiation sterilization uses ionizing radiation — gamma rays, electron beams, and X-rays — to eliminate pathogens and microorganisms from medical devices, pharmaceuticals, food products, and packaging materials. It is not a new technology, but its adoption is accelerating for very concrete reasons. Global production of single-use medical devices grows year on year, health regulations are becoming increasingly stringent, and the pharmaceutical industry — particularly biologics and injectable drugs — requires sterility standards that traditional chemical methods struggle to meet with the same level of reliability.
The onsite services segment alone accounts for 86% of the market, with an expected value of approximately $5 billion by 2030. Offsite outsourced services are also growing, contributing around $400 million over the same period. North America remains the dominant region: the North American market, valued at $1.4 billion in 2025, is projected to reach $2.4 billion by 2030 at a CAGR of 12%. The United States alone is expected to account for $2.2 billion of that total, driven by the expansion of the biopharmaceutical sector and the growing trend of outsourcing sterilization services to specialized operators.
Among application segments, medical instruments are growing at the fastest pace, though pharmaceuticals and food safety are gaining ground each year. The integration of nanomaterials into food packaging, for instance, is increasing compatibility with irradiation processes, opening new commercial opportunities for service providers. Companies active in this space include, alongside those already mentioned, BWX Technologies, Framatome, Ion Beam Applications, and Mevion Medical Systems — names that also belong to the worlds of civil nuclear energy and particle physics, underscoring just how pervasive radiological technologies are across the entire industrial supply chain.
This market sits within the broader medical laboratory services industry, estimated at around $237 billion by 2030. Irradiation sterilization represents roughly 2% of that total — a modest share, but one with growth dynamics well above the sector average. Over the next four years, a combination of new irradiation facilities, expanding production capacity, and shorter processing times should cement the position of major operators, making it increasingly difficult for new entrants without significant large-scale investment. Those who already have the infrastructure in place — and Steris certainly does — are best positioned to capture the rising demand.
