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Sitration, Inc.

CAMBRIDGE, MA · Founded 2020 · Energy · Private

Ultra-durable silicon filtration membranes for treating and recycling produced water from natural gas operations

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Updated · sitration.com

Sector
Energy
Headquarters
CAMBRIDGE, MA
Founded
2020
Latest Form D
$3M, Jul 2025
Total capital
$18.5M
Federal grants
$256K
1 award · 2021
Rank in peer group#11 of 53
Private capital raised
$18.2M
7 Form D · last Jul 2025
15 months since last filing
Federal contracts
None on recordNo federal contract awards found.
Granted patents
4
12 pending · first 2024
Rank in peer group#6 of 53

Capital timeline

202020212022202320242025FEDERAL ↑EQUITY ↓Cumulative $18.5M$256K1st Form D$50K4th Form D$2.5M5th Form D$800K6th Form D$11.8M7th Form D$3M
202020212022202320242025FEDERAL ↑EQUITY ↓Cumulative $18.5M$256K4th Form D$2.5M

Latest events

  • Private capital raisedForm D · SEC · 7th filing$3M
  • Private capital raisedForm D · SEC · 6th filing$11.8M
  • Private capital raisedForm D · SEC · 5th filing$800K
  • Private capital raisedForm D · SEC · 4th filing$2.5M
  • Federal grantNSF · Phase I · SBIR Phase I: Mobile Produced Water Recycling for Reducing Costs in Natural Gas Production$256K
  • Private capital raisedForm D · SEC · 3rd filing$25K
  • Private capital raisedForm D · SEC · 2nd filing$50K
  • Private capital raisedForm D · SEC · 1st filing$50K

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 53 peers

Line = median

Energy · Material

  • Federal grants#11 · top 21%
  • Granted patents#6 · top 11%

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

Researcher links verified by same-company patents and grants
  • Brendan SmithResearcherExecutive Officer, DirectorLinked by 4 patents · $256K in grants as PI
  • Jacob BroDirectorNamed in SEC Form D filings
  • Jeffrey GrossmanDirectorNamed in SEC Form D filings
  • Matthew NordanDirectorNamed in SEC Form D filings

What it has protected

USPTO · 4 granted of 16
  • PendingMethods And Apparatus For Extracting Metals From MaterialsUSPTOApplication 19340567
  • GrantedMethods And Apparatus For Extracting Metals From MaterialsUSPTOUS 12,503,784
  • PendingMethods And Apparatus For Extracting Metals From MaterialsUSPTOApplication 19275580
Show all 16 patent records
  • Methods And Apparatus For Extracting Metals From MaterialsJan 22, 2026 · Application 19340567Pending
  • Methods And Apparatus For Extracting Metals From MaterialsDec 23, 2025 · US 12,503,784Granted
  • Methods And Apparatus For Extracting Metals From MaterialsNov 13, 2025 · Application 19275580Pending
  • Methods And Apparatus For Extracting Metals From MaterialsNov 13, 2025 · Application 19275604Pending
  • Methods And Apparatus For Extracting Metals From MaterialsOct 2, 2025 · Application 19235243Pending
  • Methods And Apparatus For Extracting Metals From MaterialsAug 26, 2025 · US 12,398,477Granted
  • System And Method For Electrically Conductive Membrane SeparationApr 10, 2025 · Application 18987855Pending
  • System And Method For Electrically Conductive Membrane SeparationFeb 4, 2025 · US 12,214,315Granted
  • System And Method For Electrically Conductive Membrane SeparationSep 19, 2024 · Application 18671586Pending
  • System And Method For Electrically Conductive Membrane SeparationJul 9, 2024 · US 12,030,018Granted
  • System And Method For Electrically Conductive Membrane SeparationJan 18, 2024 · Application 18212590Pending
  • System And Method For Nanoscale Membrane-based Hydrometallurgical SeparationApplication 63213085Pending
  • Methods And Apparatus For The Extraction And Recovery Of Precious And Transition MetalsApplication 63699351Pending
  • Methods And Apparatus For Extracting Metals From MaterialsApplication PCTUS2024035074Pending
  • Methods And Apparatus For Extracting Metals From MaterialsApplication 63522346Pending
  • System And Method For Electrically Conductive Membrane SeparationApplication PCTUS2022034343Pending

Related companies, and why

  • THERMAL BATTERY CORPORATIONSimilar federal contract value in Energy · null in contracts
  • Gary MillerSimilar federal contract value in Energy · null in contracts
  • Realta Fusion Inc.Similar federal contract value in Energy · null in contracts
  • CRCL SOLUTIONS LLCSimilar federal contract value in Energy · null in contracts
  • Beet IncSimilar federal contract value in Energy · null in contracts
  • Loci Controls, IncSimilar federal contract value in Energy · null in contracts

Regulatory activity · Energy

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 .