Byteport
Byteport, founded in 2025 and based in San Francisco (YC W26), builds DART, a proprietary UDP-based protocol that accelerates 1GB–100TB file transfers over high-latency and unreliable networks.
About
Byteport, founded in 2025 and based in San Francisco (YC W26), builds DART, a proprietary UDP-based protocol that accelerates 1GB–100TB file transfers over high-latency and unreliable networks. It also has offices in Chicago and London.
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This company
BusinessLatest roundTotal raisedDate- Byteport
Byteport, founded in 2025 and based in San Francisco (YC W26), builds DART, a proprietary UDP-based protocol that accelerates 1GB–100TB file transfers over high-latency and unreliable networks. It also has offices in Chicago and London.
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United States
BusinessLatest roundTotal raisedDate- CScale
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Series C · $188M · 2026-09
$188M - Ayar Labs
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China
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IDM developer and manufacturer of high-reliability semiconductor optical chips (pump laser chips) for signal amplification in backbone, core and metro networks, submarine fiber communications, inter-satellite laser links and AI data center DCI.
Undisclosed · 2026-07
— - Guoke Guangxin (Haining) Technology Co., Ltd.
SiN silicon photonics: 400G-1.6T datacom chips, 3.2T/6.4T NPO/CPO and OIO chiplets for AI; chips for LiDAR, coherent, sensing, OCT
Series B · 2026-09
— - Ligent Technologies
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$150MValuation $4.1B
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Series B · 2026-10
— - SatEnlight
OAM-multiplexed free-space optical/laser communication terminals and modem technology for high-speed inter-satellite, satellite-to-ground and intercity optical links, addressing laser communication capacity bottlenecks and security.
— - Enlightra
Chip-scale multi-wavelength comb lasers for optical interconnects in data centers and AI clusters
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Other / unspecified
BusinessLatest roundTotal raisedDate- DriveNets
Builds carrier-grade networks and Ethernet AI networking architectures in software, supporting GPU interconnection for large-scale AI clusters.
Series D+ · $1.0B · 2026-06 · Valuation $8.5B
$1.0BValuation $8.5B - Xsight Labs
Fabless semiconductor company providing programmable Ethernet switch chips and 800G data processing units (DPUs) for hyperscale, edge and AI data center networks.
Series D+ · $300M · 2026-07 · Valuation $2.8B
$300MValuation $2.8B - DustPhotonics
High-speed optical interconnect products for data center and AI applications
Series B · $24M · 2024-02
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