Fleet typeIdentity
Owner-operator
3 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 4146046
M & B TRANSPORT LLC
3 power unitsBERLIN, WI
CARRIER ACTIVE
Observed fleet · trailing 24 mo daily
3Power units
Self-reported · MCS-150
—Trailers seen
None observed · 24 mo
—Avg age (yr)
Awaiting decode
Click to see how we scored it
Load decision · FMCSA snapshot · 2026-06-13
Limited record
Not enough federal record to assess. Verify authority and insurance directly.
Operating authority22 yr active
since 2023Insurance (BIPD)Unknown
FMCSA L&IVehicle OOS · 24mo—%
▼ 22.26% nat'lCrashes · fatal00
clean 24 moVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersDecoding
—
Awaiting VIN decode
Identity stabilityStable
2 yr unchanged
Same registration since 2023 — no chameleon / reincarnation signal.
AI readFull read
Is M & B TRANSPORT LLC safe to work with?
Is M & B TRANSPORT LLC safe to load? M & B TRANSPORT LLC (USDOT 4146046) is an active owner-operator motor carrier based in BERLIN, WI, operating 3 power units and 4 drivers. Operating authority has been active 2 years (past the 24-month broker-confidence threshold). Across 1 roadside inspections, with 0 reportable crashes in the last 24 months. FMCSA has not assigned a safety rating. Vektor rates it unrated (50/100). Source: FMCSA SAFER/MCMIS, last updated 2026-06-13.
FMCSA fields + Vektor analysis · updated 2026-06-13
M&M & B TRANSPORT LLC 50
01
Safety
1 inspections · 24 mo · vs national benchmarks
Out-of-service rate· trailing 24 months vs national benchmark
Vehicle OOS —% (24-mo)0 veh insp · 24-mo · nat'l 22.26%
050%nat'l 22.26%
Driver OOS —% (24-mo)0 drv insp · 24-mo · nat'l 6.67%
030%nat'l 6.67%
Violation themes· decoded · grouped by BASIC
What this carrier actually gets cited for — FMCSA violation codes decoded into plain English, ranked by frequency.
- 392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving1
02
Authority & insurance
Can they legally + adequately haul your load?
Insurance continuity· insurer · policy · lapses
No insurance filing history on record.
03
Equipment & fleet
VIN-decoded · NHTSA vPIC
Capacity· power units = haulable capacity; trailers are towed
- Registered power units (MCS-150)
- 3
- Observed power (24 mo)
- —
- Trailers (towed)
- —
Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.
04
Operations & lanes
Revealed by inspection density · 24 mo
Inspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
BERLIN, WI
Density
fewermore
05
Network & fraud
Affiliated entities & reincarnation signals · for review, not a verdict
No shared-VIN flow in the last 12 months
None of this carrier's trucks were inspected under another USDOT in the last 12 months — any shared equipment is historical, not active.
Show all-time history (1 truck · 1 carriers)
Across all inspections on record: USDOT 3070478
Shares a company officer with other carriers
brian retzlaff — 4 carriers: USDOT 1412474USDOT 2457586USDOT 3557273
06
Identity & contact
FMCSA census + L&I dossier
Location
- Physical address
- N8014 COUNTY ROAD F, BERLIN, WI, 54923-9473
- Operation
- Intrastate (Non-Hazmat)
Contact
- Phone
- (920) 295-8328
Registration
- Officer
- Brian Retzlaff
- USDOT / docket
- 4146046
- First registered
- 10/18/2023
- Last MCS-150
- 05/12/2026 · 30,000 mi (2025)
- FMCSA safety rating
- Not rated
- D-U-N-S
- —
Fleet (self-reported · MCS-150)
07
Federal activity
Daily-captured FMCSA licensing & insurance changes — monitored by Vektor
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.
08
Reviews
Verified broker, shipper & driver reviews — moderated
Performance ratings only — never the Vektor risk score
No verified reviews yet
Be the first broker or shipper to rate M & B TRANSPORT LLC. Reviews cover performance only — on-time delivery, payment speed, communication — and never affect the Vektor risk score.
Leave a review09
Frequently asked
What is M & B TRANSPORT LLC's USDOT number?
M & B TRANSPORT LLC's USDOT number is 4146046.
Is M & B TRANSPORT LLC authorized to operate?
As of 2026-06-13, M & B TRANSPORT LLC is active in the FMCSA register.
What is M & B TRANSPORT LLC's safety record?
M & B TRANSPORT LLC has a —% vehicle out-of-service rate across 1 roadside inspections, with 0 reportable crashes in the last 24 months, and is not currently rated by FMCSA. Vektor's computed risk score is 50/100 (tier: unknown).
How big is M & B TRANSPORT LLC's fleet?
M & B TRANSPORT LLC operates 3 power units and 4 drivers per its most recent MCS-150 filing.
Where is M & B TRANSPORT LLC based?
M & B TRANSPORT LLC is based in BERLIN, WI.