An index of frontier and emerging AI labs.
AI compute hardware
Photonic computing and optical interconnect company building silicon photonics systems for advanced AI and HPC workloads. Announced $155M in new funding in June 2026 at a $1.2B valuation.
| Name | Lightmatter |
|---|---|
| Space | AI compute hardware |
| Founded | 2017 |
| Latest valuation | $1.2B(confirmed) |
| Stage | — |
| Status | active |
| HQ | Boston |
| Founders | Nicholas Harris, Darius Bunandar, Thomas Graham |
| Website | https://lightmatter.co |
| Careers | https://lightmatter.co/careers |
| — | |
| X / Twitter | — |
| Date | Round | Amount ($M) | Valuation | Confidence | Source |
|---|---|---|---|---|---|
| — | — | — | $1.2B | reported | — |
No founders recorded yet. Submit info.
| Date | Type | Title | Source |
|---|---|---|---|
| 2026-06-14 | added | Lightmatter added to tracker Latest valuation: $1.2B. | — |
No sources cited.
| Lab | Valuation | Founded |
|---|---|---|
| Cerebras Systems | ~$56B (mkt cap) | 2016 |
| Groq | ~$6.4B | 2016 |
| Etched | $5B | 2022 |
| Unconventional AI | $4.5B | 2025 |
| Celestial AI | $3.25B (acq.) | 2020 |
| Tenstorrent | ~$3.2B | 2016 |
| d-Matrix | $2B | 2019 |
| Hailo | $1.2B | 2017 |