The Cesium Developer Conference is for developers at all levels who are interested in integrating open geospatial technologies into their apps and services. From game developers to digital twin integrators, the conference welcomes anyone who engages with the open community.

Share your technical expertise, highlight workflows, inspire others, and network with leaders and peers. Hundreds of developers and creators will join you in Philadelphia to learn and connect with the 3D geospatial community at the open ecosystem event of the year.

Each submitter may be the primary author of one proposal.

We are collecting presentations until January 30 and look forward to finding our speakers for Cesium DevCon. A committee will carefully review all submissions and select the most applicable and pertinent topics.

You will know if your presentation is accepted through a Cesium team member contacting you in February 2026.

Submit your proposal today!

Yes. The presentation must be understood by English speakers.

Additionally, Speakers must be available to present in person throughout the event. Event date is June 8-10, 2026.

Cesium will connect with you on or before March 7, 2025.

The primary author of an accepted session will receive one complimentary registration.

Early Bird Registration will open January 19, 2026.

Yes. The presentation must be understood by English speakers.

Additionally, Speakers must be available to present in person throughout the event. Event date is June 8-10, 2026.

2026 Cesium Developer Conference 

Call for Speaker and Presentation Submission - Participation Agreement 

This 2026 Cesium Developer Conference Call for Speaker and Presentation Submission - Participation Agreement (the “Agreement”) is between Bentley Systems, Incorporated (“Bentley”) and the organization or individual listed in the submission form (in either case, referred to as “I” or “my” herein).  

1. I agree to submit the presentation listed in the form for inclusion in the Cesium Developer Conference (the “Presentation”), and if selected for the Cesium Developer Conference, I agree to create and present (as in-person) the Presentation at the Cesium Developer Conference on June 8, 9, and 10, 2026. 

2. The “Materials” covered under this Agreement shall include the Presentation and all project information, files, images, and any reference materials used in support of the Presentation; and, if selected for the Cesium Developer Conference, shall also include the Presentation and all videos, images, and any reference materials used in support of the Presentation, as well as any interviews, videos, or other recordings or materials produced in connection with any of the foregoing.

3. Upon my submission of Materials, I grant Bentley and its subsidiaries and affiliates a perpetual, worldwide, nonexclusive, royalty-free right to use, reproduce, display, modify, classify, distribute, incorporate, or make derivative works based upon the Materials (or any portion of the Materials) in any works or media, for marketing (including in connection with investor presentations), pre-sales support, advertising, social media, and training, as well as for non-commercial purposes, including, but not limited to, reproduction in established industry journals and other third-party publications, case studies, and media websites. Any use of Materials will be credited to my organization in each case.

4. Unless contrary to applicable law, I understand that this Agreement does not prohibit me from using the Project or Presentation in the future in my own professional or personal work.

5. I understand that my submission will be accepted only if the project, presentations, and other features of the submission are in compliance with all applicable export regulations, sanctions, or other regulations.

6. If the presentation is selected, subject to my prior consent, I understand and agree that the Presentation may be recorded by Bentley during the conference, that the recording may include my personal likeness (i.e., photos, videos, etc.), and that Bentley will own the recording, subject to my rights in any of the Materials included in the recording. I further understand that Bentley may reproduce, display, distribute, or incorporate in any way, in any medium, any portions of the recording.

7. Regarding the Presentation submitted andpresented at the Conference, I hereby represent and warrant that: 
a. I am the exclusive owner of all rights in the Materials; 
b. the Materials are not the subject of third-party liens or claims of ownership; 
c. the Materials do not infringe any copyright, trademark, or other third-party proprietary rights and comply with all applicable laws; and 
d. no further permissions or payments are required for use of the Materials. 

8. I warrant that, if submitting on behalf of an organization, I am authorized by my organization to approve and execute this Agreement and waive any and all claims against Bentley related to Bentley's use of the Materials; provided that such use remains within the rights granted and permitted uses as described within this Agreement.