Heirloom Carbon Technologies, INC.
H-1B1 Singapore sponsorship history
What the filing record shows
Heirloom Carbon Technologies, INC. has 4 certified H-1B1 Singapore filings on record, most recently in Q2 2025. None were filed in the past four quarters, so the sponsorship history here is real but not current. The most sponsored title is Mechanical Design Manager, Components (2 filings), across 3 distinct titles in total. Worksites span 3 locations, concentrated in Brisbane, CA. The median annualized wage across these filings is $154,087, which is the floor the employer committed to rather than a full compensation figure.
A filing history shows an employer has done this before and knows the process. It is not a commitment to sponsor you. See how the H-1B1 process works and how to use filing data in a job search.
Filings Over Time
Roles Sponsored
Office Locations
All Filings
Senior Mechanical Engineer Manager, Scaled Systems
Brisbane, CA
Mechanical Design Manager, Components
Brisbane, CA
MECHANICAL DESIGN MANAGER, COMPONENTS
BRISBANE, CA
MECHANICAL DESIGN ENGINEER
SAN FRANCISCO, CA