Fleet typeIdentity
Small fleet
77 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 361845 · MC-528990
SIBLEY & SONS CONSTRUCTION INC
77 power unitsavg 5.3 yrMulti-region · 12 statesBANGOR, ME
CARRIER ACTIVEMC-528990 ACTIVERATED SATISFACTORYHAZMAT
Observed fleet · trailing 24 mo daily
77Power units
48 observed · MCS-150
87Trailers seen
Decoded · vPIC
5.3Avg age (yr)
1999–2026 · vPIC
Click to see how we scored it
Load decision · FMCSA snapshot · 2026-06-13
Clear to load
Active authority and a clean federal record. No blocking issues found.
Active operating authorityInsurance on fileMultiple injury crashes
In good standing · 4
Active operating authorityActive for-hire authority is on file with FMCSA.Insurance on fileBIPD (liability) insurance is on file with FMCSA.Established 37 yearsOperating authority has been on file since 1989.Out-of-service rates below national averageBoth vehicle and driver OOS rates beat the national benchmark across 128 inspections.
Operating authority3636 yr active
since 1989Insurance (BIPD)On file
FMCSA L&IVehicle OOS · 24mo11.111.1 %
▼ 22.26% nat'lCrashes · fatal00
6 in 24moVektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots
Fleet age vs peersNewer
5.3 yr
Model years 1999–2026 · peer benchmark computing.
Identity stabilityStable
36 yr unchanged
Same registration since 1989 — no chameleon / reincarnation signal.
AI readFull read
Is SIBLEY & SONS CONSTRUCTION INC safe to work with?
Is SIBLEY & SONS CONSTRUCTION INC safe to load? SIBLEY & SONS CONSTRUCTION INC (USDOT 361845, MC-528990) is an active small-fleet motor carrier based in BANGOR, ME, operating 77 power units and 76 drivers. Operating authority has been active 36 years (past the 24-month broker-confidence threshold). Across 128 roadside inspections, its vehicle out-of-service rate is 11.1% (below the 22.26% national average), with 6 reportable crashes in the last 24 months. FMCSA rates it Satisfactory. Vektor rates it clear to load (94/100). Source: FMCSA SAFER/MCMIS, last updated 2026-06-13.
FMCSA fields + Vektor analysis · updated 2026-06-13
S&SIBLEY & SONS CONSTRUCTION INC 94
01
Safety
128 inspections · 24 mo · vs national benchmarks
Out-of-service rate· trailing 24 months vs national benchmark
Vehicle OOS 11.1% (24-mo)36 veh insp · 24-mo · nat'l 22.26%
050%nat'l 22.26%
Driver OOS 1.0% (24-mo)102 drv insp · 24-mo · nat'l 6.67%
030%nat'l 6.67%
OOS trajectory· trailing 6-mo vehicle-OOS rate vs national
7.1% now▼ Improving
Inspection coverage· expected vs observed · the fraud signal
Inspection coverage
How heavily FMCSA inspects this fleet for its size — it tells you how much to trust the safety signals above. Thin coverage on a young authority is a fraud signal nobody else surfaces.
Under-inspected
Expected
Well-monitored
Heavily inspected
≈0.7 / unit·yr
thin signalabundant signal
Roadside-inspection volume is about what you'd expect for a 77-unit fleet — enough signal to read the safety record, though not a heavy sample.
- Registered power units
- 77
- Inspections · 24 mo
- 102
- Annualized
- ≈51 / yr
- Coverage
- ≈0.7 inspections / unit · yr
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 Driving23
- 393.9 Inoperative required lampsVehicle Maintenance6 · 2 OOS
- 393.75 Tires (defective / underinflated / worn)Vehicle Maintenance5 · 4 OOS
- 393.45 Brake tubing / hose defectsVehicle Maintenance3 · 1 OOS
- 396.17 Periodic (annual) inspectionVehicle Maintenance2
- 395.24 ELD — record edits / dataHOS Compliance2
- 395.3 Driving beyond hours-of-service limitsHOS Compliance2
- 395.8 Record of duty status (log / ELD) not current or missingHOS Compliance2
- 393.78 Windshield wipersVehicle Maintenance1
- 392.60 Driving of commercial motor vehiclesUnsafe Driving1
02
Authority & insurance
Can they legally + adequately haul your load?
Operating authority· 49 CFR · per type
Operating authority
- Common
- Active
- Contract
- None
- Broker
- None
Insurance & bonds
BIPD / liability (required)Filed with FMCSA
CargoNone
Surety bond (BMC-84)None
Insurance continuity· insurer · policy · lapses
$750k BIPD · 5 insurers · 0 lapsesInsurer churn
+2 earlier
Progressive Northwestern · 05–07
National · 07–09
Progressive Northern · 10–14
20052015
No BIPD policy is currently in force in the filing history. The authority record may still list one on file — request a COI to confirm current coverage.
5 insurer eras · collapsed from 7 filings
| Insurer | Period | Limit | Renewals |
|---|---|---|---|
| NORTHLAND INSURANCE COMPANY | Jul 2014 → Jul 2015 | $750k | 1 |
| PROGRESSIVE NORTHERN INSURANCE COMPANY | Aug 2010 → Jul 2014 | $750k | 1 |
| UNITED FINANCIAL CASUALTY COMPANY | Jul 2009 → Aug 2010 | $750k | 1 |
| NATIONAL CASUALTY COMPANY | Jul 2007 → Jul 2009 | $750k | 3 |
| PROGRESSIVE NORTHWESTERN INS. CO. | Jul 2005 → Jul 2007 | $750k | 1 |
03
Equipment & fleet
VIN-decoded · NHTSA vPIC
Capacity· power units = haulable capacity; trailers are towed
- Registered power units (MCS-150)
- 77
- Observed power (24 mo)
- 48
- Trailers (towed)
- 87
Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.
Fleet age· model years · decoded VINs
Average age
2026
Newest model yr
1999
Oldest model yr
VINs decoded
04
Operations & lanes
Revealed by inspection density across 12 states · 24 mo
Operating footprint· revealed by roadside-inspection geography
Operating radiusMulti-region
revealedStates observed1212
US statesInspections · 24 mo102102
ME busiestInspection density by state· each tile = a state · shade = inspections, last 24 mo
Home base
BANGOR, ME
Top corridor
ME
Density
fewermore
05
Network & fraud
Affiliated entities & reincarnation signals · for review, not a verdict
Last 12 months: 8 trucks also ran under 6 other carriers
VINs inspected under this carrier were recently inspected under other USDOTs too — the active double-broker / shared-equipment signal: USDOT 3682641USDOT 4449824USDOT 2587351USDOT 3813189USDOT 4338711USDOT 3885523Some overlap is legitimate (leased or sold equipment); review alongside the other signals.
Show all-time history (32 trucks · 22 carriers)
Across all inspections on record: USDOT 730654USDOT 3682641USDOT 4449824USDOT 2587351USDOT 2821692USDOT 3616164USDOT 3195837USDOT 3813628
Capacity consistency· registered vs roadside-observed power units
Registered (MCS-150)7777
Observed (24 mo)4848
Shared w/ other carriers3232
Registered capacity materially exceeds what is observed roadside — the MCS-150 may be stale or the fleet under-utilized.
06
Identity & contact
FMCSA census + L&I dossier
Location
- Physical address
- 242 MILLER STREET, BANGOR, ME, 04401
- Mailing address
- PO BOX 836, BANGOR, ME, 04402-0836
- Operation
- Interstate· Hazmat
Contact
- Phone
- (207) 974-3140
- Cell
- (207) 794-5171
- Fax
- (207) 974-3051
- Web domain
- sibleyconstruct.com
Registration
- Officer
- Marcus L. Sibley
- USDOT / docket
- 361845 · MC-528990
- First registered
- 08/06/1989
- Last MCS-150
- 01/12/2026 · 4,273,480 mi (2025)
- FMCSA safety rating
- Satisfactory · 12/17/2009
- Recordable crash rate
- 0.00
- 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
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Leave a review09
Frequently asked
What is SIBLEY & SONS CONSTRUCTION INC's USDOT number?
SIBLEY & SONS CONSTRUCTION INC's USDOT number is 361845, and its motor carrier number is MC-528990.
Is SIBLEY & SONS CONSTRUCTION INC authorized to operate?
As of 2026-06-13, SIBLEY & SONS CONSTRUCTION INC is active in the FMCSA register with common, contract, broker operating authority on file.
What is SIBLEY & SONS CONSTRUCTION INC's safety record?
SIBLEY & SONS CONSTRUCTION INC has a 11.1% vehicle out-of-service rate (national average 22.26%) across 128 roadside inspections, with 6 reportable crashes in the last 24 months, and an FMCSA "Satisfactory" safety rating. Vektor's computed risk score is 94/100 (tier: clear).
How big is SIBLEY & SONS CONSTRUCTION INC's fleet?
SIBLEY & SONS CONSTRUCTION INC operates 77 power units and 76 drivers per its most recent MCS-150 filing.
Where is SIBLEY & SONS CONSTRUCTION INC based?
SIBLEY & SONS CONSTRUCTION INC is based in BANGOR, ME, with roadside inspections recorded across 12 states.