SKYCOOL SYSTEMS INC.
Radiative sky cooling surfaces and refrigeration systems that passively cool below ambient temperature using specialized optical coatings to reject heat to the sky
- Sector
- Clean tech
- Headquarters
- MOUNTAIN VIEW, CA
- Latest Form D
- $6.1M, Jul 2023
- Total capital
- $7M
- Federal grants
- $225K
- 1 award · 2016
- Rank in peer group#13 of 17
- Private capital raised
- $6.1M
- 1 Form D · last Jul 2023
- 39 months since last filing
- Federal contracts
- $598K
- 2 awards · State, Defense
- Rank in Clean tech#70 of 914
- Granted patents
- 5
- 16 pending · first 2022
- Rank in peer group#1 of 17
Capital timeline
Latest events
- Federal contractDefense · Estcp Project EW24-7969. Title - Passive Radiative Cooling To Reduce Energy Consumption, Prevent The Heat Island Effect And Improve Thermal Comfort. Objective - Incorporate Passive Radiative Cooling Film (prcf) In DOD Facilities To Reduce Energy Use.$598K
- Private capital raisedForm D · SEC · 1st filing$6.1M
- Federal grantNSF · Phase I · SBIR Phase I: Radiative Sky Cooling-Enhanced Refrigeration System$225K
Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.
1 record has no date or no amount, so it isn’t placed on the timeline.
Federal first
80months
from SKYCOOL SYSTEMS INC.’s first federal award to its first private round.
- First federal award · Dec 2016
- NSF · $225K
- First Form D · Jul 2023
- $6.1M · 1st Form D
- Awards before first raise
- 1 award
An association in public records, not a cause or a prediction.
Standing among 17 peers
Line = medianClean tech · Material
- Federal grantsBelow median
- Granted patents#1 · top 6%
Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.
Founders and team
From SEC Form D filings- Eli GoldsteinExecutive Officer, DirectorNamed in SEC Form D filings
- Johannes DoumaDirectorNamed in SEC Form D filings
What it has protected
USPTO · 5 granted of 21- PendingCooling Panel SystemUSPTOApplication 19354278
- PendingRadiative Cooling SystemsUSPTOApplication 19249129
- GrantedCooling Panel SystemUSPTOUS 12,460,831
Show all 21 patent records
- Cooling Panel SystemFeb 5, 2026 · Application 19354278Pending
- Radiative Cooling SystemsJan 22, 2026 · Application 19249129Pending
- Cooling Panel SystemNov 4, 2025 · US 12,460,831Granted
- Air Pre-coolingSep 4, 2025 · Application 19067774Pending
- Radiative Cooling SystemsJul 22, 2025 · US 12,366,386Granted
- Composite Radiative Cooling MaterialsMay 29, 2025 · Application 18963366Pending
- Radiative Cooling SystemsDec 12, 2023 · US 11,841,171Granted
- Cooling Panel SystemDec 5, 2023 · US 11,835,255Granted
- Radiative Cooling SystemsJun 14, 2022 · US 11,359,841Granted
- Systems And Methods For Radiative CoolingJul 15, 2021 · Application 17146172Pending
- Reducing Data Center Energy and Water Usage Through Passive Radiative CoolingApplication 62959856Pending
- Cooling Panel SystemApplication PCTUS2019068818Pending
- Radiative Cooling SystemsApplication 62835411Pending
- Air Pre-coolingApplication PCTUS2025018001Pending
- Cooling Panel SystemApplication 62785591Pending
- Composite Radiative Cooling MaterialsApplication PCTUS2024057878Pending
- Radiative Cooling With Nanoporous FilmsApplication 63631913Pending
- Air Pre-coolingApplication 63559693Pending
- Uv-stable Radiative Cooling FilmApplication 63604148Pending
- Systems And Methods For Radiative CoolingApplication PCTUS2021012935Pending
- Radiative Cooling SystemsApplication PCTUS2020028821Pending
Related companies, and why
- AquaRealTime, Inc.Similar federal contract value in Clean tech · $616K in contracts
- ACADIAN RESEARCH & DEVELOPMENT LLCSimilar federal contract value in Clean tech · $600K in contracts
- FOURTH STATE LLCSimilar federal contract value in Clean tech · $600K in contracts
- INDUSTRIAL MICROBES INCSimilar federal contract value in Clean tech · $500K in contracts
- WATER ILLUMINATION INCSimilar federal contract value in Clean tech · $500K in contracts
- SANITARY GREEN INCORPORATEDSimilar federal contract value in Clean tech · $500K in contracts
Regulatory activity · Clean tech
- Air Plan Approval; Michigan; Redesignation and Maintenance Plan for the Partial St. Clair 2010 1-Hour Sulfur Dioxide (SO2) NAAQS Nonattainment AreaEnvironmental Protection Agency
- Air Plan Approval; Delaware; 2006 24-Hour Fine Particulate Matter Limited Maintenance Plan for the Philadelphia Nonattainment AreaEnvironmental Protection Agency
- Air Plan Approval; Oklahoma; Updates to the State Implementation Plan for New Source Review Permitting and General SIP ProvisionsEnvironmental Protection Agency
- Epyrifenacil; Pesticide TolerancesEnvironmental Protection Agency
- Fluoxapiprolin; Pesticide TolerancesEnvironmental Protection Agency
- Chlormequat Chloride; Pesticide TolerancesEnvironmental Protection Agency
Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.
Sources
Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.
How to read this page
Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.
Data freshness
SEC Form D filings through . SBIR and STTR awards through .