NORTHWESTERN MARBLE & GRANITE CO is a cut stone and stone product manufacturing employer in MINNEAPOLIS, MN. Federal records show 6 OSHA inspections with 4 violations and $438 in penalties. All data sourced from public federal enforcement records.
Data sourced from OSHA, DOL WHD, MSHA, EPA ECHO, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA, and the UVA Corporate Prosecution Registry. Last updated: May 2, 2026.
NORTHWESTERN MARBLE & GRANITE CO
7705 BUSH LAKE ROAD, MINNEAPOLIS, MN, 55439
Parent: NorthWestern Energy Group, Inc. (144 locations)
327991 — Top companies in Cut Stone and Stone Product Manufacturing
Industry Benchmark
Data Insights
Inspection Breakdown
Peer Comparison
Labor Relations (NLRB)
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Inspection History
No inspection records found.
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Data aggregated from public federal enforcement and program records (OSHA, WHD, MSHA, EPA, NLRB, FMCSA, OFLC, BLS, SAM.gov, CMS, USAspending, CPSC, NHTSA) plus the UVA Corporate Prosecution Registry. Employer profiles matched by name and location — matching errors may occur. Risk scores computed by FastDOL, not official government assessments. OSHA citations typically appear 3-8 months after the inspection, so very recent enforcement actions may not yet be reflected. Data provided as-is. Report a data error.
Part of a larger organization
NORTHWESTERN MARBLE & GRANITE CO is one of 144 establishments in our dataset that roll up under the parent organization NorthWestern Energy Group, Inc.. NorthWestern Energy Group, Inc. is a SEC public reporter (NWE), with most recent reported revenue of $1.6B.
Federal enforcement records on NORTHWESTERN MARBLE & GRANITE CO represent activity at this specific establishment. The full enforcement footprint of NorthWestern Energy Group, Inc. across all 144 of its tracked locations is viewable on the parent profile.
Other establishments operated by NorthWestern Energy Group, Inc.
- NORTHWESTERN SELECTA INC. — SAN JUAN, PR — 4 federal records
- NORTHWESTERN UNIVERSITY — EVANSTON, IL — 2 federal records
- Northwestern Selecta, Inc. — San Juan, PR — 2 federal records
- NORTHWESTERN ROOFING COMPANY, INC. — GREENVILLE, PA — 2 federal records
- Northwestern Human Services — Yardley, PA — 2 federal records
- NORTHWESTERN CASKET CO — NEW HOPE, MN — 2 federal records
- NORTHWESTERN ENERGY — HELENA, MT — 2 federal records
- NORTHWESTERN OHIO COMMUNITY ACTION COMMISSION, INC. — DEFIANCE, OH — 2 federal records
- NORTHWESTERN OHIO COMMUNITY ACTION COMMISSION, INC. — SWANTON, OH — 2 federal records
- NORTHWESTERN ENERGY — BILLINGS, MT — 2 federal records
Other employers in Cut Stone and Stone Product Manufacturing within MN
- 109073 - CAMBRIA COMPANY LLC — LE SUEUR — 3 federal records
- MANKATO KASOTA STONE, INC — MANKATO — 2 federal records
- 104298 - KASOTA STONE FABRICATORS INC — MANKATO — 2 federal records
- 95518 - BIESANZ STONE COMPANY — WINONA — 2 federal records
- 108534 - INNOVATIVE SURFACES INC — HASTINGS — 1 federal record
- 99706 - ORIJIN STONE INC — MINNEAPOLIS — 1 federal record
- NORTHLAND MONUMENT INC OF LONGVILLE — LONGVILLE — 1 federal record
- 108913 - TRU STONE TECHNOLOGIES INC — WAITE PARK — 1 federal record
- 96861 - ENVIRONMENTAL MATERIALS LLC DBA ENVIRON STONEWORKS — NORTH BRANCH — 1 federal record
- BRICHACEK STONE — MOTLEY — 1 federal record
Industry context
Within the cut stone and stone product manufacturing industry in MN, NORTHWESTERN MARBLE & GRANITE CO ranks in the 65th percentile of OSHA violation frequency across 114 comparable establishments.
OSHA penalty totals rank in the 54th percentile of the same peer group. Inspection frequency ranks in the 93th percentile.
The Bureau of Labor Statistics reports an industry-average Total Recordable Incident Rate (TRIR) of 6.2 for the cut stone and stone product manufacturing sector, with a Days Away, Restricted, or Transferred (DART) rate of 2.5.
Activity timeline
No federal enforcement activity has been recorded against this establishment in the past 11 years.
Frequently Asked Questions
- What is NORTHWESTERN MARBLE & GRANITE CO's OSHA violation history?
- NORTHWESTERN MARBLE & GRANITE CO has 6 OSHA inspections on record with 4 violations and $438 in total penalties.
- How does NORTHWESTERN MARBLE & GRANITE CO's safety record compare to its industry?
- NORTHWESTERN MARBLE & GRANITE CO operates in the cut stone and stone product manufacturing industry. The industry average Total Recordable Incident Rate (TRIR) is 6.2.
About this data
This profile aggregates federal enforcement records on NORTHWESTERN MARBLE & GRANITE CO of MINNEAPOLIS, MN from 17 federal data sources. Records were found in 4 sources: OSHA workplace safety inspections, NLRB labor relations cases, SEC XBRL companyfacts (parent financials), and BLS industry safety benchmarks. The remaining 13 sources were checked and found no matching records: WHD, MSHA, EPA, OFLC, OFCCP, FMCSA, USAspending, SAM.gov, CMS, CPSC, NHTSA, UVA, SEC enforcement.
Establishments are matched across agencies using normalized employer name, state, and ZIP code. The dataset was last refreshed on May 2, 2026. NORTHWESTERN MARBLE & GRANITE CO resolves to the parent rollup NorthWestern Energy Group, Inc., which operates 144 establishments in our dataset.
This profile may be incomplete if NORTHWESTERN MARBLE & GRANITE COoperates under multiple legal names, files under variations our entity-matching rules don't yet cover, or maintains records below current matching thresholds. To report a missing record or correction, email corrections@fastdol.com.