ONS 2026
By Buzzbox Media · Last reviewed August 3, 2026
What is ONS?
The largest oncology nursing conference in the US with 200+ exhibitors. Oncology nurses influence formulary decisions, infusion protocols, chemotherapy safety products, and patient monitoring equipment. Presentation Theaters give deeper engagement than booth-only presence.
What are the key facts about ONS?
- Host organization: Oncology Nursing Society
- Primary specialty: oncology nursing
- Scale: large
- Geography: US National
- International attendance: ~5%
- See all Nursing conferences
Which device categories fit ONS?
Which buyer stages does ONS fit?
What does ONS charge for booth space?
Cost not published
Oncology Nursing Society does not publish booth pricing for ONS that we can link to, so we do not list a figure here. We would rather show nothing than an estimate you cannot check. Ask them directly on the ONS exhibitor page ↗.
Planning the ONS booth itself? Read our guide to medical conference booth design for booth types, union labor rules, and the corner upgrade.
Who attends ONS?
The largest oncology nursing conference in the US. 3,500+ attendees and 200+ exhibitors. Presentation Theaters available for in-depth product showcases. Managed through a dedicated sponsorship site (onssponsorships.org). 51st Congress in 2026.
- Purchasing authority: ~50% of attendees
- Effective buyers: ~2,000
- International attendance: ~5%
Where is ONS held?
- Venue: San Antonio, TX (Henry B. Gonzalez Convention Center)
- Product theater: Available
Who else exhibits at ONS?
Exhibitor data coming soon for ONS.
Is ONS worth exhibiting?
Why Exhibit
The largest oncology nursing conference in the US with 200+ exhibitors. Oncology nurses influence formulary decisions, infusion protocols, chemotherapy safety products, and patient monitoring equipment. Presentation Theaters give deeper engagement than booth-only presence.
Why Skip
Nursing audience requires different sales approach than physician conferences. If your device requires oncologist prescribing or hospital C-suite approval, ASCO is the physician-focused alternative. ONS is influential but downstream in the decision chain for capital equipment.
What should exhibitors know before ONS?
Same venue (Henry B. Gonzalez Convention Center, San Antonio) as ASMBS 2026 but different dates (ONS in May, ASMBS also in May: check for overlap). Presentation Theaters available. Pricing not publicly posted: contact via onssponsorships.org.
What is the Buzzbox Score for ONS?
7.7 / 10 (Strong)
7.7 out of 10. A solid, dependable show for the right exhibitor. Carried by exhibitor experience (8.9: non-union venue (simpler, cheaper move-in) and exhibitor-friendly host city). The lightest dimension is audience quality (7.3, 50% purchasing authority (moderate)). The largest oncology nursing conference in the US with 200+ exhibitors.
How we score
Six weighted factors, each scored on a 0 to 100 rubric then normalized to a 7.0 to 10.0 band. Every show on this list cleared a relevance bar to be included, so 7.0 is the floor; the number tells you how far the leaders pull ahead. A factor we cannot source is left unscored rather than estimated, and the overall score above was set before any figure behind it was withdrawn.
Solid (7.3): 50% purchasing authority (moderate) and large-scale event.
Not scored on cost: this organizer publishes no booth price we can link to.
Strong (8.1): exhibitor count disclosed, and attendee purchasing-authority data published.
Strong (8.9): non-union venue (simpler, cheaper move-in), exhibitor-friendly host city, and purpose-built convention venue.
Strong (8.6): honest "who should skip" guidance, the flagship / largest show in its niche, and product-theater opportunity for thought leadership.
Strong (8.8): large and well-established and ~200 exhibitors.
When are the ONS exhibitor deadlines?
Detailed deadlines not yet published for ONS. Check the official site for the application window.
Frequently Asked Questions
How much does a booth cost at ONS?
ONS does not publish booth pricing we can link to, so we do not list a cost for this show. Rather than estimate one, we point you at the organizer's exhibitor page to request current rates directly.
How many people attend ONS?
ONS draws approximately 4,000 attendees. The largest oncology nursing conference in the US. 3,500+ attendees and 200+ exhibitors. Presentation Theaters available for in-depth product showcases. Managed through a dedicated sponsorship site (onssponsorships.org). 51st Congress in 2026.
When and where is ONS 2026?
ONS 2026 takes place May 13-17, 2026. The venue is San Antonio, TX (Henry B. Gonzalez Convention Center). Oncology Nursing Society hosts the meeting.
How many ONS attendees have purchasing authority?
About 50% of ONS attendees hold purchasing authority, which works out to roughly 2,000 effective buyers out of approximately 4,000 attendees. Effective buyers multiplies total attendance by the share of attendees who hold purchasing authority. Both inputs are estimates drawn from organizer reporting and our own exhibitor research, so read the figure as directional rather than exact.
How does Buzzbox Media score ONS?
ONS carries a Buzzbox Score of 7.7 out of 10 (Strong), with one caveat on this record: cost efficiency is not scored, because Oncology Nursing Society publishes no booth price we can link to, and the overall score was set before that figure was withdrawn. The factors still scored are audience quality, data transparency, exhibitor experience, editorial value, and growth trajectory. Each factor is scored on a 0 to 100 rubric then normalized to a 7.0 to 10.0 band, and every conference in our index cleared a relevance bar to be listed, so 7.0 is the floor. On this record the highest is exhibitor experience at 8.9 and the lowest is audience quality at 7.3.