Total Seal Investment Holdings, LLC
Piston rings for internal combustion engines across automotive, diesel, industrial, marine, and aviation applications
- Sector
- Materials
- Headquarters
- CHICAGO, IL
- Founded
- 2019
- Latest Form D
- $12.2M, Jun 2019
- Total capital
- $12.2M
- Federal grants
- None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
- Private capital raised
- $12.2M
- 1 Form D · last Jun 2019
- 89 months since last filing
- Federal contracts
- None on recordNo federal contract awards found.
- Granted patents
- None on recordNo USPTO grants. Applications publish after 18 months.
Capital timeline
Latest events
- Private capital raisedForm D · SEC · 1st filing$12.2M
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.
Founders and team
From SEC Form D filings- Equity Partners, LLC PromusExecutive OfficerNamed in SEC Form D filings
What it has protected
No granted patents are on record.
USPTO usually publishes applications 18 months after filing, so recent applications may not be visible yet. Patents assigned under a different entity name won’t match.
Checked: USPTO granted patents and published applications · Oct 23, 2026
Related companies, and why
- MUON VISION INC.Similar federal contract value in Materials · null in contracts
- RAVEL HOLDINGS, INC.Similar federal contract value in Materials · null in contracts
- GREENKEY, LLCSimilar federal contract value in Materials · null in contracts
- MadeSolid, IncSimilar federal contract value in Materials · null in contracts
- Prometheus Materials, Inc.Similar federal contract value in Materials · null in contracts
- KMX Technologies, Inc.Similar federal contract value in Materials · null in contracts
Regulatory activity · Materials
- Eliminating Regulations Establishing Fellowships in Laboratory Standardization and Testing for Foreign CitizensNational Institute of Standards and Technology
- Eliminating Obsolete Marking Requirements for Toy, Look-Alike, and Imitation FirearmsNational Institute of Standards and Technology
- Eliminating Obsolete Regulations Related to the Advanced Technology Program and the Technology Innovation ProgramNational Institute of Standards and Technology
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 .