Quintessent Inc.
StreetZero Signal 70
About Quintessent Inc.
Quintessent Inc. is a Santa Barbara, CA-based developer of optical connectivity solutions for scaling computing and artificial intelligence. The company provides single-chip quantum dot-based DWDM comb laser technology that reduces power consumption, simplifies manufacturing, and improves reliability. It currently offers customer sampling of its comb laser technology as an evaluation kit and is developing additional components such as semiconductor optical amplifiers and optical engines.
LATEST FUNDINGSeries A
$36.4M
Announced 2026-11-10
TOTAL RAISED$51.6M
IN THE NEWS
- 🔗 Quintessent - 2026 Company Profile, Team, Funding & Competitors - Tracxn
- 🔗 Quintessent Raises $40M in Series A funding
- 🔗 Quintessent Raises $40M in Series A Funding | Startup Rise USA News posted on the topic | LinkedIn
- 🔗 Quintessent Inc. Company Overview, Contact Details & Competitors | LeadIQ
- 🔗 Quintessent Inc.
EMPLOYEES11-50
FOUNDED2019
HQGoleta, CA, United States
Industry
Other Technology
Tags
Optical ConnectivityAI InfrastructurePhotonicsSeries A
Investors
Key highlights
- Raised $40M Series A in August 2026 for AI optical interconnect products.
- Technology centers on single-chip quantum-dot DWDM comb lasers to cut power and component count.
- Backed by Cycle Capital and 10 other institutional investors including Goldman Sachs and Ciena.
- Plans to use funds for sampling, qualification, manufacturing scale-up, and new optical components.
- Total funding reached $51.6M across five rounds since founding in 2019.
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