Y Combinator Summer 2023 · Deep tech & other · North America
Marketplace to book doctors and avoid surprise bills
| Round date | Stage | Amount | Investors | Source |
|---|---|---|---|---|
| — | Y Combinator Summer 2023 | — | Y Combinator | ycombinator.com |
Profiles summarize public reporting and company websites. Business-model notes are MaxBC's reading of that material, not confirmed facts; unknowns are left blank rather than guessed. Updated 2026-10-11.
One-box automotive braking for heavy loads
Bolt Graphics is developing Zeus, a GPU for rendering, simulation and gaming that it calls the world's most efficient GPU, targeting real-time path tracing and HPC.
Building data-center-scale infrastructure for next-generation AI workloads (Cubelets is referenced as a trademark).
Smart water metering devices giving remote hourly meter reads over Amazon Sidewalk, LoRaWAN or Bluetooth, designed to work with existing meter inventory.
Repla, recycled plastic pellets made from composite plastics that were previously incinerated or landfilled; also licenses the Repla process to partner companies.
Developer of the KP-FHR fluoride salt-cooled high-temperature small modular reactor, also making reactor components, fuel and molten salt coolant in-house.
