diff --git a/README.md b/README.md
index 8fbad51..6a36aea 100644
--- a/README.md
+++ b/README.md
@@ -174,6 +174,7 @@
 |[Lemurian Labs](https://lemurianlabs.com) | AI | 2018 | CA |AI computing platform |
 |[Light Solver](https://lightsolver.com) | PHOTONICS | 2019 | IL |Optical computing platform |
 |[Lightelligence](https://lightelligence.ai) | PHOTONICS | 2017 | US |Optical computing platform |
+|[Lightium](https://lightium.co) | MFG | 2023 | CH |Photonics foundry |
 |[Lighton](https://lighton.ai) | PHOTONICS | 2015 | FR |Optical computing platform |
 |[Lightmatter](https://lightmatter.co) | PHOTONICS | 2017 | US |Optical computing platform |
 |[Literal Labs](https://Literal-labs.ai) | AI | 2023 | UK |Explainable AI using Tsetlin machines |
diff --git a/startups.csv b/startups.csv
index 421a25a..6872ac9 100644
--- a/startups.csv
+++ b/startups.csv
@@ -115,6 +115,7 @@ Krutrim,olakrutrim.com,AI,IN,2023,AI hardware
 Lemurian Labs,lemurianlabs.com,AI,CA,2018,AI computing platform
 Light Solver,lightsolver.com,PHOTONICS,IL,2019,Optical computing platform
 Lightelligence,lightelligence.ai,PHOTONICS,US,2017,Optical computing platform
+Lightium,lightium.co,MFG,CH,2023,Photonics foundry
 Lighton,lighton.ai,PHOTONICS,FR,2015,Optical computing platform
 Lightmatter,lightmatter.co,PHOTONICS,US,2017,Optical computing platform
 Literal Labs,Literal-labs.ai,AI,UK,2023,Explainable AI using Tsetlin machines