STEM BROTHERS INC
Quick checks from the federal record
Authority active
FMCSA currently lists this operating authority as active.
Tenure: 35 years
Registration history dates back to 1990 — an established federal record.
FMCSA record timeline
MC Look Up archives every monthly census filing and diffs them field-by-field — 3 changes tracked for USDOT 423540 so far.
31
to
28
30
to
28
Sep 20, 2024
to
Oct 3, 2025
Registration & fleet profile
From 1 archived monthly FMCSA census snapshot for this carrier.
- MCS-150 filing: Sep 20, 2024 — within the biennial update window
- Reported annual mileage: 227,212 miles (2023) — ≈8,115 per truck
- Company officer: JOHN DAVID STEM
- Operation class: Private property only
No analyst narrative exists yet for STEM BROTHERS INC. Running a full vetting search generates one — a plain-English readout of the flags, history, and network signals on this page.
What the full workup adds
BASIC percentile detail
Each of the seven BASIC measures with percentile, threshold status, and inspection counts behind it.
Crash-by-crash record
Every reportable crash with date, state, severity, and tow-away status — fleet-normalized.
Live insurance verification
Current BI&PD and cargo coverage against federal minimums, with effective dates and lapse detection.
Full identity graph
Complete shared-phone/address/officer map with revocation overlays, not just the sample above.
Common questions about STEM BROTHERS INC
Is USDOT 423540 authorized to operate right now?
As of the latest FMCSA sync, USDOT 423540 (STEM BROTHERS INC) shows authority status: Active. MC Look Up re-syncs carrier records on a rolling ~48-hour cycle, so this reflects the current federal register, not a stale snapshot.
What has changed on STEM BROTHERS INC's FMCSA record?
MC Look Up's month-over-month census tracking has logged 3 changes to this carrier's federal record — most recently its power units in Jun 2025. Frequent identity-field changes (name, phone, address) can signal a chameleon re-registration.
When did STEM BROTHERS INC last update its MCS-150 filing?
The MCS-150 on file dates from 0.2 years ago. That's within FMCSA's required biennial update window.
Who is the listed company officer for STEM BROTHERS INC?
JOHN DAVID STEM appears as company officer on the FMCSA registration for USDOT 423540. Officer names are one of the identity fields MC Look Up cross-references against revoked carriers.
How long has USDOT 423540 been registered?
STEM BROTHERS INC first appears in FMCSA records in 1990, giving it roughly 35 years of registration history. Carriers under 12 months old statistically carry the highest risk of identity fraud and double-brokering.
Run the full workup on STEM BROTHERS INC
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