Quintessent Communications
Quintessent | Optical Connectivity Solutions | Santa Barbara, CA
Santa Barbara, United States · Founded 2019 · $51.5M raised
- Headquarters
- Santa Barbara, California
- Employees
- 11–50
- Founded
- 2019
- Business Model
- B2B
- Website
- quintessent.com
- Total Funding
- $51.5M
- Last Round
- $40.0M Series AAug 2026
- Rounds
- 2
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 2 funding rounds and 3 investors for this company. The full record is or through the API.
About
With headquarters in Santa Barbara, California, Quintessent is an innovator in simplified and resilient AI data center optical interconnect products that minimize total cost of ownership. Its DWDM-based comb laser product, built using its quantum dot laser technology, enables optical interconnects that can scale up data center performance while reducing the energy used for data movement by up to 40%. Quintessent technology and products meet the needs of AI hyperscalers, allowing them to connect more GPUs together in a way that consumes dramatically less energy.
Summary
Quintessent Communications is an Artificial Intelligence company based in Santa Barbara, United States, founded in 2019. It has raised $51.5M in total across 2 rounds, most recently a $40.0M Series A round in Aug 2026. Investors include Cycle Capital, Goldman Sachs and Susquehanna Ventures.
Tech & App Stack
2 technologies & apps tracked
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Funding History
Aug 2026
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Funding: Seed through Series A. Amounts, valuations, and investors where available.
Investors
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