Quintessent raises $40M series a

◆ Amount

$40M

◆ Announced

24 Aug 2026

◆ Company

◆ Source

◆ The Round

Quintessent raised $40M in series a funding, announced on 24 August 2026, led by Cycle Capital, with participation from Goldman Sachs XIG-Industry Ventures, Hina Liberty Capital, Susquehanna International Group, InterVest, Safar Partners, Ciena, Foothill Ventures, M Ventures, Osage University Partners, Sierra Ventures. The round is tracked live by Fusion42 as part of the Raise fund database and the Scout startup database.

◆ About Quintessent

Develops quantum dot-based DWDM comb lasers for AI optical interconnects to address InP laser supply constraints. Quintessent is based in United States and currently at series a stage, operating in Deep Tech: Photonics & Optics, Deep Tech: Semiconductors.

◆ Investors

◆ Investing funds on Raise

• Qualcomm Ventures

◆ Market context

Qualcomm Ventures is profiled on Raise, Fusion42's database of venture funds — where each investor's thesis, cheque size and other tracked backings can be followed. This funding event is a citable node in Fusion42's market graph: it links Quintessent's Scout profile to the funds behind the round and to related Wire analysis, and is refreshed from public announcements as the round is confirmed or extended. It is the same live market data Arthur reasons over when benchmarking a founder's own raise against what is closing in the market right now.

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