Great Sky
Great Sky Inc.
A new class of AI hardware from first principles. Photonics, superconductors, and brain-inspired architecture for compute beyond silicon.
greatsky.ai · Boulder, CO
Funding event
The round itself, as filedInferred stageSeries B
Sold of offered$25.9M of $30.7M
Filed2026-07-23
Days since filing73
- Exemption claimed
- Rule 506(b)
- First-ever Form D
- No
- Date of first sale
- 2026-07-10
Investors
No investors named: Form D does not list them
Officers on the filing
Names and roles as filed; addresses are never stored- Jeffrey ShainlineExecutive Officer · Director
- Tom BiegalaDirector
- Mark WadeDirector
Health flags
Three flags, each with the raw inputs behind it · as of 2026-10-03UndersubscribedNot flagged84.3% sold2.8 months since first sale
Prior raiseNot flaggedPrior raise not known—
AmendedNot flaggedNo amendmentNo D/A on file
Open roles
On the employer's own careers page · checked 2026-09-246
Pre-posting windowNot enough dataShown once this sector and stage have 20 observed lags from filing to first posting.
- IT & Security ExpertOCT 3Boulder · Operations · FullTime · open 1 day
- Photonics Test Development EngineerSEP 24Boulder · Photonics · FullTime · open 10 days
- Hardware Platform Software EngineerSEP 24Boulder · Systems Integration · FullTime · open 10 days
- AI Frameworks EngineerSEP 24Boulder · Algorithms · FullTime · open 10 days
- Photonics Fabrication and Design EngineerSEP 24Boulder · Photonics · FullTime · open 10 days
- Integrated Circuit Layout EngineerSEP 24Boulder · Superconducting Electronics · FullTime · open 10 days
Also raised in Industrial
Same sector, 28 days to 2026-10-04ZymoChemSeries B · $25.1M of $34.2M · San Leandro, CAHiring activelyAmerican Fertilizer, LLCSeed · $2.3M of $2.3M · Windsor, COQuiet
35 rounds in Industrial in the 28 days to 2026-10-03, against 29 in the 28 days before.