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DIAMOND HOLDING CORPORATION is an employer in MARIETTA, GA. Federal records show 3 OSHA inspections with 0 violations and $0 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 3, 2026.

DIAMOND HOLDING CORPORATION

150 MARR AVENUE, MARIETTA, GA, 30064

Parent: QUANTUM CORP /DE/ (1,580 locations)

Federal Enforcement
3
OSHA inspections

Industry Benchmark

Industry Avg TRIR
2.3
Industry Avg DART
1
Industry rates from BLS SOII 2024. Self-reported rates from OSHA ITA.
OSHA Inspections
3
OSHA Violations
0
Total Penalties
$0
Trend
STABLE
WHD Cases
0
Back Wages Owed
$0
Confidence
HIGH
SVEP Flag
No

Data Insights

History Span
22 years
Last Activity
20yr ago
Inspection Rate
0.1/yr

Inspection Breakdown

Planned
1
Complaint
2
Complaint and accident-triggered inspections are stronger risk signals than routine planned inspections.

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SEC Enforcement(1)

$5,000,000 totallast: 2014-01-09

SEC Litigation Releases filed against QUANTUM CORP /DE/— every public-company employer profile shows the parent's SEC enforcement history. Source: sec.gov/litigation/litreleases.

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Inspection History

No inspection records found.

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More employers in this state: Georgia workplace enforcement data →
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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

DIAMOND HOLDING CORPORATION is one of 1,580 establishments in our dataset that roll up under the parent organization QUANTUM CORP /DE/. QUANTUM CORP /DE/ is a SEC public reporter (QMCO), with most recent reported revenue of $274M.

Federal enforcement records on DIAMOND HOLDING CORPORATION represent activity at this specific establishment. The full enforcement footprint of QUANTUM CORP /DE/ across all 1,580 of its tracked locations is viewable on the parent profile.

Other establishments operated by QUANTUM CORP /DE/

Other employers in this industry within GA

Activity timeline

No federal enforcement activity has been recorded against this establishment in the past 20 years.

Frequently Asked Questions

What is DIAMOND HOLDING CORPORATION's OSHA violation history?
DIAMOND HOLDING CORPORATION has 3 OSHA inspections on record with 0 violations and $0 in total penalties.

About this data

This profile aggregates federal enforcement records on DIAMOND HOLDING CORPORATION of MARIETTA, GA from 17 federal data sources. Records were found in 4 sources: OSHA workplace safety inspections, SEC Litigation Releases, SEC XBRL companyfacts (parent financials), and BLS industry safety benchmarks. The remaining 13 sources were checked and found no matching records: WHD, MSHA, EPA, NLRB, OFLC, OFCCP, FMCSA, USAspending, SAM.gov, CMS, CPSC, NHTSA, UVA.

Establishments are matched across agencies using normalized employer name, state, and ZIP code. The dataset was last refreshed on May 3, 2026. DIAMOND HOLDING CORPORATION resolves to the parent rollup QUANTUM CORP /DE/, which operates 1,580 establishments in our dataset.

This profile may be incomplete if DIAMOND HOLDING CORPORATIONoperates 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.