R. Stresau Laboratory, INC.

What they make

• energetic devices
• components
• detonators
• leads
• blasting caps
• fuze energetics
• s UN/DOT testing
• manufacturers

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Where it is

Other plants nearby

Every listed plant in Washburn County

Also at this address

No other federal record shares this street address.

Where this record comes from

6 sources hold this plant, and 13 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.

EPA cross-references this facility in OSHA-OIS, RCRAINFO, WI-ESR · EPA site type STATIONARY.

• The company’s own websiteOPERATING
  first seen JUL 2026 · last seen OCT 2026
• SAM.gov entity registrationOPERATING
  Record R29SPM25X9X4 · first seen MAR 2026 · last seen MAR 2026
• OSHA injury and illness reportsOPERATING
  Record 1424015 · first seen DEC 2025 · last seen DEC 2025
• DOL Form 5500 retirement plan filingsOPERATING
  Record 391016183|WI|54801|n8265 medley rd · first seen DEC 2024 · last seen DEC 2024
• SBA Paycheck Protection Program loan recordsEXISTENCE
  Record WI|spooner|n8265 medley rd · first seen APR 2020 · last seen APR 2020
• EPA Facility Registry ServiceEXISTENCE
  Record 110009521703 · first seen DEC 2014 · last seen DEC 2014

ALSO RECORDED ASSTRESAU LABORATORY INC

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.

NameSOURCES DISAGREE

EPA: STRESAU LABORATORY INC · JUL 2026

SAM.gov: R. STRESAU LABORATORY, INC. · MAR 2026 · ON THIS PAGE

Street address

EPA: N8265 MEDLEY RD · JUL 2026 · ON THIS PAGE

SAM.gov: N8265 MEDLEY RD · MAR 2026 · ON THIS PAGE

City

EPA: SPOONER · JUL 2026 · ON THIS PAGE

SAM.gov: SPOONER · MAR 2026 · ON THIS PAGE

State

EPA: WI · JUL 2026 · ON THIS PAGE

SAM.gov: WI · MAR 2026 · ON THIS PAGE

County (FIPS code)

EPA: 55129 · SEP 2026

CoordinatesSOURCES DISAGREE

Census geocoder: 45.934075855562,-91.941507476705 · JUL 2026 · ON THIS PAGE

EPA: 45.93464,-91.94158 · JUL 2026

Employees (band)

OSHA: 20-99 · DEC 2025

Website

SAM.gov: http://www.stresau.com · MAR 2026

Year established

Company website: 1961 · AUG 2026

CAGE code

SAM.gov: 62387 · MAR 2026

Retirement plan filing (Form 5500)

DOL: 81 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024

PPP loan

SBA PPP: PPP loan x1, approved 2020-04-08, 83 jobs reported · APR 2020

SAM registration expires

SAM.gov: 2027-03-25 · MAR 2026