Sixline Semiconductor, INC.
4345 Rock Crest Rd, Middleton, WI 53562
Operating signal within 12 months from two or more independent sources.
What they make
Semiconductor and Related Device Manufacturing334413- semiconductor devices
- carbon nanotubes
- high throughput processing
- selective deposition
- electronics
- high-frequency analog circuits
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Electronic Theatre Controls INC | Middleton | Other Electronic Component Manufacturing 334419 | LIKELY ACTIVE | 5.2 KM |
| Precision Devices, INC. | Middleton | Semiconductor and Other Electronic Component Manufacturing 334400 | LIKELY ACTIVE | 6.0 KM |
| Lokos Electronics, LLC | Middleton | Semiconductor and Related Device Manufacturing 334413 | LIKELY ACTIVE | 6.1 KM |
| Extreme Engineering Solution | Verona | Printed Circuit Assembly (Electronic Assembly) Manufacturing 334418 | LIKELY ACTIVE | 9.9 KM |
| Daylight Solutions INC | Madison | Semiconductor and Other Electronic Component Manufacturing 334410 | UNVERIFIED | 11.9 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
2 sources hold this plant, and 8 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGfirst seen JAN 2026 · last seen JAN 2026
IN DANE COUNTY8 other plants share this one’s industry (Semiconductor and Other Electronic Component Manufacturing, NAICS 3344); 5 of them have a size band on record.
What each source says
Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.
- Name
- SAM.gov: SIXLINE SEMICONDUCTOR, INC. · JAN 2026
- Street address
- SAM.gov: 4345 ROCK CREST RD · JAN 2026
- City
- SAM.gov: MIDDLETON · JAN 2026
- State
- SAM.gov: WI · JAN 2026
- Coordinates
- Census geocoder: 43.124102928604,-89.476679287665 · JUL 2026
- Website
- Company website: www.sixlinesemi.com · JUL 2026 · ON THIS PAGE
- SAM.gov: www.sixlinesemi.com · JAN 2026 · ON THIS PAGE
- CAGE code
- SAM.gov: 9EB15 · JAN 2026
- SAM registration expires
- SAM.gov: 2027-01-06 · JAN 2026