Fleet typeIdentity
Asset-based
42 power units. Brokers price each fleet type apart.
Carrier profile · USDOT 178461 · MC-203361
MACMILLAN-PIPER LLC
42 power unitsSEATTLE, WA
CARRIER ACTIVEMC-203361 ACTIVEHAZMAT
Observed fleet · trailing 24 mo daily
42Power 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
Review before loading
Operating, but with flags a broker should weigh before tendering freight.
Active operating authorityInsurance on fileNo inspection history despite active fleet
Watch · 2
Operating authority5252 yr active
since 1974Insurance (BIPD)On file
FMCSA L&IVehicle OOS · 24mo—%
▼ 22.26% nat'lCrashes · fatal11
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
52 yr unchanged
Same registration since 1974 — no chameleon / reincarnation signal.
AI readFull read
Is MACMILLAN-PIPER LLC safe to work with?
Is MACMILLAN-PIPER LLC safe to load? MACMILLAN-PIPER LLC (USDOT 178461, MC-203361) is an inactive asset-based motor carrier based in SEATTLE, WA, operating 42 power units and 42 drivers. Operating authority has been active 52 years (past the 24-month broker-confidence threshold). FMCSA has not assigned a safety rating. Vektor rates it review before loading (84/100), with the leading concern: no inspection history despite active fleet. Source: FMCSA SAFER/MCMIS, last updated 2026-06-13.
FMCSA fields + Vektor analysis · updated 2026-06-13
MLMACMILLAN-PIPER LLC 84
01
Safety
Roadside inspections, BASICs & crash history
Out-of-service rate· trailing 24 months vs national benchmark
No roadside inspections on record.
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 · 3 insurers · 0 lapsesContinuous
Continental · 90–01
Continental Western · 01–16
Great West · 16–24
19902024
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.
3 insurer eras · collapsed from 11 filings
| Insurer | Period | Limit | Renewals |
|---|---|---|---|
| GREAT WEST CASUALTY CO. | Sep 2016 → Jul 2024 | $750k | 3 |
| CONTINENTAL WESTERN INSURANCE CO. | Jul 2001 → Sep 2016 | $750k | 7 |
| CONTINENTAL CASUALTY CO. | Dec 1990 → Jul 2001 | $750k | 1 |
03
Equipment & fleet
VIN-decoded · NHTSA vPIC
Capacity· power units = haulable capacity; trailers are towed
- Registered power units (MCS-150)
- 42
- 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
SEATTLE, WA
Density
fewermore
05
Network & fraud
Affiliated entities & reincarnation signals · for review, not a verdict
No shared-identity links detected — no reincarnation flag, shared trucks, registration domain, or officer overlap with other carriers.
06
Identity & contact
FMCSA census + L&I dossier
Location
- Physical address
- 1762 6TH AVE S, SEATTLE, WA, 98134
- Mailing address
- PO BOX 3514, SEATTLE, WA, 98124-3514
- Operation
- Interstate· Hazmat
Contact
- Phone
- (206) 624-5135
- Fax
- (206) 624-2449
- stilley@macpiper.com
- Web domain
- macpiper.com
Registration
- Officers
- Mark B. Miller · Suzanne Tilley
- USDOT / docket
- 178461 · MC-203361
- First registered
- 06/01/1974
- Last MCS-150
- 01/11/2024 · 601,475 mi (2023)
- FMCSA safety rating
- Not rated
- D-U-N-S
- 50181098
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 MACMILLAN-PIPER 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 MACMILLAN-PIPER LLC's USDOT number?
MACMILLAN-PIPER LLC's USDOT number is 178461, and its motor carrier number is MC-203361.
Is MACMILLAN-PIPER LLC authorized to operate?
As of 2026-06-13, MACMILLAN-PIPER LLC is inactive in the FMCSA register with common, contract, broker operating authority on file.
How big is MACMILLAN-PIPER LLC's fleet?
MACMILLAN-PIPER LLC operates 42 power units and 42 drivers per its most recent MCS-150 filing.
Where is MACMILLAN-PIPER LLC based?
MACMILLAN-PIPER LLC is based in SEATTLE, WA.