# Lightium

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/lightium

- Industry: Semiconductors
- Headquarters: Schlieren, Switzerland
- Website: www.lightium.co
- Total disclosed funding: $6.9M
- Latest round: Seed (Sep 7, 2024)
- Investors on record: 2

## About

Founded in 2023 and based in Schlieren, Switzerland, Lightium AG is a manufacturer of production-grade thin-film lithium niobate (TFLN) foundry services. In February 2025, Lightium AG raised CHF 150,000 from new investor Venture Kick.

Lightium's TFLN platform offers production-ready photonic solutions, producing 200 mm wafers in a foundry environment. Its technology features include modulation speeds exceeding 100 GHz, low-voltage operation, and a wide transparency window ranging from 350 to 5,500 nm. The platform supports various bandwidths, catering to diverse industry needs.

The company plans to use the February 2025 funding to strengthen its online presence and support its growth strategies.

## Funding rounds

- Seed, Sep 7, 2024, $6.9M — Lakestar, Vsquared Ventures

## Investors

- Lakestar (https://capitalatlas.ai/funds/lakestar) — Seed
- Vsquared Ventures (https://capitalatlas.ai/funds/vsquared-ventures) — Seed