Startup · United States
Mass Magnetics
Updated HQ BostonFounded 20261-10 employees
Domestic permanent magnets made from recycled rare-earth material.
Capabilities1
| Technology | Role | Maturity | TRL | Notes | Confidence |
|---|---|---|---|---|---|
| Advanced manufacturing and materials | Developer | — | — | classify_sectors run 52, haiku, taxonomy 2026-10-18b: Makes recycled rare-earth permanent magnets and states they are DFARS-compliant for defense customers. | Reported |
- Developerclassify_sectors run 52, haiku, taxonomy 2026-10-18b: Makes recycled rare-earth permanent magnets and states they are DFARS-compliant for defense customers.—Reported
Maturity and TRL describe this organization's work; the field-wide maturity is on each technology's page.
People3
| Person | Role |
|---|---|
| Eric Silver | Founder |
| Eric Silver Scholem | Founder |
| Matthew Groll | Founder |
Company Metrics
Employee-profile counts reflect LinkedIn profiles associated with the company, not verified headcount. One observation establishes a baseline; it does not establish growth.
Sources6
Profile3
- 1
Mass Magnetics · Supports Organization · name
“Mass Magnetics | Domestic Rare Earth Magnets”
- 2
Y Combinator · Supports Organization
“Mass Magnetics”
- 3
Y Combinator · Supports Organization
“Mass Magnetics”
People2
- 4
LinkedIn · Supports Organization · employee range, Organization · ownership, Role
“employee_range: 1-10 (profile: 2-10 employees)”
- 5
roundfunded.com · Supports Role
“Mass Magnetics was founded by Eric Silver, Matthew Groll.”
Other1
- 6
LinkedIn via Bright Data · Supports Organization · logo, Organization · url, Organization metric · employees in linkedin, Organization metric · followers
“{"logo": "https://media.licdn.com/dms/image/v2/D560BAQGo7vF1uC893g/company-logo_200_200/B56Z8oVlbAGgAI-/0/1783088175027/massmagnetics_logo?e=2147483647&v=beta&t=CZF03Vti6msoru25Hh6rL7RhqzJ3_NOwC26zl0wXIgs"}”
Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.