PROMETHEUS TECHNOLOGIES, LLC

SAN JOSE, CA · Founded 2020 · Clean tech · Still private

Organ and tissue preservation technology enabling on-demand replacement and extended storage for transplantation and regenerative medicine

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Updated · prometheus.bio

Sector
Clean tech
Headquarters
SAN JOSE, CA
Founded
2020
Latest Form D
$1M, Feb 2023
Total capital
$1.3M
Federal grants
$276K
1 award · 2022
Rank in peer group#5 of 59
Private capital raised
$1M
2 Form D · last Feb 2023
44 months since last filing
Federal contracts
None on recordNo federal contract awards found.
Granted patents
2
1 pending · first 2014
Rank in peer group#7 of 59

Capital timeline

2020202120222023FEDERAL ↑EQUITY ↓Cumulative $1.3M$276K1st Form D$20K2nd Form D$1M
2020202120222023FEDERAL ↑EQUITY ↓Cumulative $1.3M$276K1st Form D$20K2nd Form D$1M

Latest events

  • Private capital raisedForm D · SEC · 2nd filing$1M
  • Federal grantHealth and Human S · Phase I · Physics-informed Machine Learning approach for a selective, sensitive, and rapid sensor for detecting unsafe levels of carcinogenic/toxic VOCs$276K
  • Private capital raisedForm D · SEC · 1st filing$20K

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.

Standing among 59 peers

Line = median

Clean tech · System

  • Federal grants#5 · top 8%
  • Granted patents#7 · top 12%

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
  • Anthony EspinozaDirectorNamed in SEC Form D filings
  • Bradshaw CrombieDirectorNamed in SEC Form D filings
  • Grigorios PapamanousakisExecutive Officer, DirectorNamed in SEC Form D filings

What it has protected

USPTO · 2 granted of 3
  • T2C-ENERGY LLCSimilar federal contract value in Clean tech · null in contracts
  • 4D MAKER, LLCSimilar federal contract value in Clean tech · null in contracts
  • GraphyteSimilar federal contract value in Clean tech · null in contracts
  • Cleancult llcSimilar federal contract value in Clean tech · null in contracts
  • FRONTLINE BIOENERGY, LLCSimilar federal contract value in Clean tech · null in contracts
  • Fieldston Power LLCSimilar federal contract value in Clean tech · null in contracts

Regulatory activity · Clean tech

Sector-level, not company-level

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 .