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Registration is now closed so that we can have your name tag and passport ready. We look forward to seeing you! If you haven’t registered but would still like to attend, we’ll have limited on-site registration.
Please send us an email at start@ionhouston.com.
Inside the Ion, partners across the building will be opening their doors to welcome guests. Experience the ecosystem through multiple floors and explore corporate offices, suites, technology showrooms, interactive experiences, and community & collaborative spaces. Along the way, discover the teams that call the Ion home—meet the bright minds solving some of our world’s most pressing challenges.
You’ll also meet startups showcasing their work throughout the building, including more than +70 startups: on the lower level from the Rice Alliance’s Energy Tech Venture Forum and Clean Energy Accelerator Class 5, on Level 3 with Chevron Studio cohorts, Rice Nexus startups and the Activate Fellows, along with a meet/greet at Persona AI.
🎉 Perks for travelers:
Whether you’re a Houston native curious about what’s happening above level one or you’re visiting from out of town, this is your chance to experience the startups and innovators that make the Ion Houston’s HQ for Innovation. The Ion is located in the Ion District, the 16-acre Innovation District in midtown Houston, and is powered by Rice University.


| Program | Time | Location |
| Greentown Event: Helping Climatetech Startups Succeed Internationally | 8:00 am - 10:00 am | Forum Stairs |
| Check In and Passport Pick Up | 11:00 am | Elevators |
| Hourly Tours | 11:00 am | Top of Forum Stairs |
| Startup Booths Open | 11:00 am - 1:00 pm | Lower Level |
| Hourly Tours | 12:00 pm | Top of Forum Stairs |
| Red Swan Carbon Credits Showcase | 11:30 - 12:30 pm | Third Floor - Red Swan Suite |
| Hourly Tours | 1:00 pm | Top of Forum Stairs |
| Open House Ends | 2:00 pm |
Ion District Parking Garage
Enter 4111 Fannin Street into your GPS for directions directly to this parking garage, located a block from the Ion. Parking in the Ion District Garage is free for the first two hours.
Red Parking Lot
Enter 4203 Fannin Street into your GPS for directions directly to the red parking lot, located across the street from the Ion. This lot is for overflow guest parking and tenant parking and is free for the first three hours.
For more information and access to pay online for parking in the red lot, click here.