Welcome to the 58th Congress of the International Society of Paediatric Oncology (SIOP 2026)

 San Antonio, Texas, USA, September 15-18, 2026

Where is the venue? How to pick up your badge? Find out general information about the SIOP 2026 Congress on this page.

Henry B. González Convention Center

900 E Market St, San Antonio, TX 78205, USA (Main Entrance from Market Street)

Website:  www.sahbgcc.com

Date Registration Exhibition Speakers’ Ready Room
Monday, September 14 15:00-18:00 Closed 15:00-18:00
Tuesday, September 15 06:30-19:00 14:45-21:30 06:30-19:00
Wednesday, September 16 07:00-17:00 09:00-16:30 07:00-17:00
Thursday, September 17 07:00-17:30 09:00-16:30 07:00-17:30
Friday, September 18 07:00-17:00 09:00-16:30 07:00-17:00

Print your name badge at any Self Check-In station located in the registration area during opening hours.
You can check in using one of the following options:
✅ Scan the barcode from this email or your Personal Area in the mobile app
✅ Use Face Recognition (available if you uploaded a photo during registration)

During the entire Congress, attire will be informal.

Network Name: SIOP2026

Password: siop2026

Upon arrival at the venue, you can connect to the local Wi-Fi network using the details above. If you notice excessive slowness due to potential network overload, please use your mobile data plan.

Download the mobile app to enhance your SIOP 2026 experience and access all the information you need!
Available on the App Store (compatible with version 13.0 and later on iOS) and Google Play Store (compatible with version 8.0 and later on Android).

  • Scan the QR Code to find and download the SIOP 2026 app on the App Store or Play Store

Posters will be presented in two shifts during the Congress in the Poster area during exhibition hours:

  • SHIFT 1: September 15-16: Posters in Shift 1 can hang the posters between 14:30-21:30 on September 15, or from 08:40 onwards on September 16. Posters must be removed no later than 20:30 on September 16. Posters not removed by the designated time will be discarded.
  • SHIFT 2: September 17-18: Posters in Shift 2 can hang the posters from 09:00 on September 17 and must be removed no later than 16:30 on September 18. Posters not removed by the designated time will be discarded.

 

We invite everyone to join the POSTER HAPPY HOUR AND POSTER WALK sessions on September 16 and 17 from 18:30.

 

E-Posters on the virtual platform

The virtual platform is designed to allow participants from all around the world to easily search and navigate in the e-Poster Gallery.

All e-Posters will be available on the congress platform during the entire congress until 3 months after the congress.

The participants will be able to contact the poster presenter through the virtual platform.

Click here to review the instructions and guidelines for speakers

Click here to review the instructions and guidelines for Poster Presenters

Click here to review the instructions and guidelines for Session Chairs

  • Confirmed Supporters & Exhibitors – Click here

Tuesday, September 15

The Welcome Reception takes place in the Exhibition Area at 20:30

All registered participants are invited to an enriching networking experience at the Welcome Networking Reception after SIOP’s Opening Ceremony.

Don’t miss this fantastic opportunity to make the most of the SIOP Congress and expand your network. See you there!

Thursday, September 17

Let’s run together and raise funds to support the fight against childhood cancer!

Join the Fun(d) Run & Walk! For further details and availability please visit the registration desk.

Date: Thursday, September 17, 2026

Starting: 6:30 am

Location: San Antonio River Walk

Meeting Point: King William Park (corner of King William Str. & Turner Str)

The time of the run is very early, and it might still be dark and chilly, so please prepare and dress accordingly.

 

Thursday, September 17

Join us for an unforgettable evening of networking, fun, and entertainment in the congress’ venue:

Date: Thursday, September 17, 2026

Time: from 19:30 to 22:00

Location: Stars at Night Ballroom (Ballroom Level of the Congress Venue)

*Tickets are limited; please check availability at the registration desk.

Congress abstracts will be available on the mobile App during the congress. Your research will gain wide exposure, you will get valuable feedback and ideas, and your name will be recognised in the programme. All registered abstracts will be published 3 months after the congress in the Pediatric Blood and Cancer (PBC): the Official Journal of SIOP.

SIOP 2026 Congress has been accredited by the European Accreditation Council for Continuing Medical Education (EACCME®)  with a maximum of with xxx European CME credits

Nursing Continuing Professional Development: The maximum number of hours awarded for this Nursing Continuing Professional Development activity is TBA CME credits.

For further information and to download your Certificate of Attendance AFTER the congress, please click here. Printed Certificates of Attendance will not be available onsite.

Within 36 hours after a session, all content will be available as video on demand for up to 3 months on the Virtual platform. Please note that at SIOP 2026 there will not be any live-streamed sessions.

The Virtual Congress Platform will be accessible from September 15, 2026 at 07:00am CDT (Central Daylight Time, UTC/GMT -5 hrs) till December 18, 2026.
Please do not sign in before this time as you will not have full access to the platform if you do.
Your Unique Sign-in Credentials will be emailed to you by the start of the congress. If you did not receive your credentials, please contact:  [email protected]

CLICK HERE to access the virtual congress login page 

 

WHAT TO EXPECT ON THE VIRTUAL PLATFORM

  • Accessible from all around the world, all you need is your computer and an Internet connection.
    *Please note the platform works best with Google Chrome.
  • Within 36 hours after a session, all content*will be available as video on demand for up to 3 months.

*Subject to presenter approval

  • Access to e-poster gallery

Support from pharmaceutical partners helps make this event possible. As such, it is important that we
comply with the various codes and directives relating to the manufacturing, distribution, and marketing of pharmaceutical products. The Human Medicine Regulations 2012, (clauses 294-300) and the European Union directive (2001/83/EC, article 86) provide guidelines relating to medicinal products for human use. Within these guidelines is the restriction that access to pharmaceutical product marketing activities must be limited to only those participants licensed / authorised to prescribe or supply medicinal products.
All participants, with the exception of the exhibitors, are asked the following question during registration: Are you licensed / authorised to prescribe or supply prescription only medicines?

All event activities (including educational sessions, meal functions, exhibit hall, etc.) are exclusively reserved for registered attendees. Non-registered guests (including children, family members, colleagues, etc.) are not allowed in any of the event areas. Badges provided at registration are required for entrance into all functions and will be strictly enforced.

Please do not leave bags or suitcases unattended at any time, whether inside or outside the session halls. Hotels strongly recommend that you use their safety deposit boxes for your valuables.

The SIOP 2026 Congress Secretariat and Organizers cannot accept liability for personal accidents or loss of or damage to private property of participants. Participants are advised to take out their own personal travel and health insurance for their trip.

Congress Organizers

Kenes Group
Rue Francois-Versonnex 7, 1207 Geneva, Switzerland
Tel: +41 22 908 0488   |    Fax: +41 22 906 9140