CScale
CScale develops optical interconnects that keep large AI computing systems communicating reliably.
$145MSeries C
ParticipantSH
Sutter Hill Ventures
Activity from announced rounds
All recorded activity
Sutter Hill Ventures is the venture firm named by AttoTude and in CapitalG’s Celero investment account.
Recorded funding activity
AttoTude develops dielectric interconnects. Celero develops optical signal processors, while Sila develops battery materials and systems. The announcements preserve distinct components of computing and energy infrastructure.
Sources
- Rounds participated in
- 9
- Confirmed lead rounds
- 0 7 roles undisclosed
- New companies
- 9 First participation on record · 0 follow-on
- Funding in participating rounds
- $1.4B 9 disclosed · full round size, not this investor’s share
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By primary sector
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Rounds
9 in all activityCelero Communications
Celero develops coherent digital signal processors and analog technology for optical links that connect AI accelerators and data centers. Its validated 2nm silicon architecture is designed to move more data across scale-up, scale-out and data-center links with lower power and a path from 1.6T to next-generation 3.2T connectivity.
$275MSeries C
ParticipantSila
Develops and manufactures advanced battery solutions for critical industries
$300MGrowth
Role not disclosedAttoTude
Pioneers ASIC over Dielectric interconnect for high-bandwidth, energy-efficient AI infrastructure connectivity
$52MSeries C
Role not disclosedSigma Computing
Provides a spreadsheet-style agentic analytics platform for enterprises to build AI apps on cloud data warehouses
$80MSeries E
Role not disclosedGridCARE
Uses physics-based AI to unlock latent grid capacity and accelerate power delivery for AI data centers
$64MSeries A
Role not disclosedFathom Therapeutics
Uses quantum chemistry and AI to design novel drug molecules
$47MSeries A
Role not disclosednEye.ai
Develops integrated optical interconnects for AI data centers
$80MSeries C
Role not disclosedSiFive
SiFive licenses RISC-V processor intellectual property for custom computing chips, including high-performance data-centre designs.
$400MSeries G
Role not disclosed