6 Best Silicon Photonics Startups to Watch in 2025

The Definitive Seedtable Ranking of Silicon Photonics Startups

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 6 start-ups with an aggregate funding of $460.0m. The average funding per company in this subset is $76.7m.

Last update to the database: Sep 2, 2025. See changelog.

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9

Funding Rounds

$194.7m

Money raised

Ayar Labs is technology company creating a solution to overcome the power and performance scaling challenges of semiconductors as well as the interconnect bandwidth bottleneck between those devices.

4

Funding Rounds

$123.0m

Money raised

Luminous Computing is a technology company using photonics to improve the data processing capabilities of artificial intelligence models by attempting to create a supercomputer on a chip.

6

Funding Rounds

$70.1m

Money raised

Skorpios Technologies, Inc. is a telecommunications company located in Albuquerque, New Mexico.

4

Funding Rounds

$38.1m

Money raised

SCINTIL Photonics develops and markets Heterogenous Silicon Photonics IC for high speed data communication and 3D sensing

Location:

3

Funding Rounds

$141.9k

Money raised

LiGenTec focuses on the development and production of photonic integration circuits.

Location:

Key people:

1

Funding Rounds

$34.0m

Money raised

OpenLight Photonics, headquartered in Santa Barbara, develops advanced silicon photonics solutions, enabling faster, more efficient data movement for AI, data centers, telecom, healthcare, and quantum applications. The company provides PASIC design and manufacturing support, driving next-generation performance in photonic integration.

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