Carrier profile · USDOT 2144345 · Updated Jun 13, 2026

MAYFIELD SITE CONTRACTORS INC

6 power unitsavg 19.5 yrLocal · 1 statesKING OF PRUSSIA, PA90/100

AUTHORITY STATUS UNKNOWN

Observed fleet · trailing 24 mo daily

6Power units

6 observed · MCS-150

—Trailers seen

None observed · 24 mo

19.5Avg age (yr)

2005–2010 · vPIC

Call dispatch(610) 279-2000 Email dispatchDAVID@MAYFIELDCORP.BIZ

Click to see how we scored it

Load decision · FMCSA snapshot · Jun 13, 2026

Clear to load

Active authority and a clean federal record. No blocking issues found.

Established 15 yearsDriver out-of-service rate above average

Watch · 2

Driver out-of-service rate above average12.5% vs the 6.7% national average.MCS-150 update dueThe biennial MCS-150 update is overdue.

In good standing · 1

Established 15 yearsOperating authority has been on file since 2011.

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo—

No inspections · 24 mo

Crashes · fatal

1 in 24 mo

USDOT registration

yr registered

Authority not on file

Insurance (BIPD)— unknown

No filing on record

Vehicle OOS · 24-mo—

No inspections · 24 mo

Crashes · fatal

1 in 24 mo

Vektor intelligence · beyond the federal recordProprietary signals computed from VIN-decoded inspections & daily FMCSA snapshots

Fleet typeIdentity

Small fleet

6 power units. Brokers price each fleet type apart.

Fleet age vs peersOlder

19.5 yr

Model years 2005–2010 · peer benchmark unavailable.

Identity stabilityStable

15 yr unchanged

Same registration since 2011 — no chameleon / reincarnation signal.

Safety

8 inspections · 24 mo

Out-of-service rate· 24-mo cumulative · vs national

Vehicle OOS —24-mo cumulative

050%

Driver OOS 12.5%24-mo cumulative

030%nat'l 6.67%

Every inspection in the window pooled — 0 vehicle and 8 driver inspections over 24 months.

Roadside inspection history· 24 charted calendar months · vehicle / driver level · any-OOS overlay

8 inspections in the charted months · busiest month Mar '25 · 2

Vehicle-levelDriver-levelAny OOS

Monthly FMCSA roadside inspections across the 24 charted calendar months. Bars show level-qualified vehicle and driver populations; one inspection can qualify for both. The line shows inspections with any out-of-service result.

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.

Expected band

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 6-unit fleet — enough signal to read the safety record, though not a heavy sample.

Registered power units: 6
Inspections · 24 mo: 8
Annualized: ≈4 / 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.

392.16 Failure to use seat beltUnsafe Driving4 · 0 OOS
392.2 State/local traffic law violation (speeding, etc.)Unsafe Driving2 · 0 OOS
383.23 Operating without a valid CDLDriver Fitness1 · 1 OOS
391.41 No / expired medical certificateDriver Fitness1 · 0 OOS

Explore full safety record — inspections, BASICs, crashes

Authority & insurance

Can they legally + adequately haul your load?

Insurance continuity· insurer · policy · lapses

No insurance filing history on record.

This timeline is the FMCSA filing history, and it ends at the most recent superseded filing — current policy status is not tracked here. Request a certificate of insurance to confirm active coverage before tendering.

Explore full authority & insurance record

Equipment & fleet

VIN-decoded · NHTSA vPIC

Capacity· power units = haulable capacity; trailers are towed

Registered power units (MCS-150): 6
Observed power (24 mo): 6
Trailers (towed): 0

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.

Fleet age· model years · decoded VINs

19.5 yr

Average age

2010

Newest model yr

2005

Oldest model yr

50.0%

VINs decoded

Explore full fleet — VIN roster, equipment mix, age distribution

Operations & lanes

Revealed by inspection density across 1 states · 24 mo

Operating footprint· revealed by roadside-inspection geography

Operating radiusLocal

revealed

States observed

US states

Inspections · 24 mo

PA busiest

Inspection density by state· each tile = a state · shade = inspections, last 24 mo

Home base

KING OF PRUSSIA, PA

596 SWEDELAND ROAD

Top corridor

PA 8

Density

fewermore

Shade = roadside inspections, last 24 mo.

See the full operating map — state density, top lanes

Network & fraud

Affiliated entities & reincarnation signals · for review, not a verdict

Last 12 months: 1 truck also ran under 1 other carrier

VINs inspected under this carrier were recently inspected under other USDOTs too — the active double-broker / shared-equipment signal: USDOT 636304Some overlap is legitimate (leased or sold equipment); review alongside the other signals.

Shares a registration email domain with other carriers

@mayfieldcorp.biz — 2 carriers: USDOT 636304

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)

Observed (24 mo)

Shared w/ other carriers

Registered and roadside-observed capacity are broadly consistent.

Explore the carrier network & VIN cross-links

Identity & contact

FMCSA census + L&I dossier

Location

Physical address: 596 SWEDELAND ROAD, KING OF PRUSSIA, PA, 19406
Operation: Interstate

Contact

Phone: (610) 279-2000
Fax: (610) 279-5030
Email: david@mayfieldcorp.biz
Web domain: mayfieldcorp.biz

Registration

Officer: David Hoplamazian
USDOT / docket: 2144345
First registered: Apr 19, 2011
Last MCS-150: May 23, 2024 · 109,212 mi (2023)
FMCSA safety rating: Not rated
Recordable crash rate: 0.00
D-U-N-S: —

Fleet (self-reported · MCS-150)

Power units

Drivers

CDL drivers

109,212

Annual mileage

Open the full identity & federal record

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.

Open the full federal-record activity feed

Reviews

Verified broker, shipper & driver reviews — moderated

Performance ratings only — never the Vektor risk score

No verified reviews yet

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Verification summaryAuthority, insurance, safety and identity facts for MAYFIELD SITE CONTRACTORS INC.

MAYFIELD SITE CONTRACTORS INC (USDOT 2144345) has a Vektor safety score of 90/100 and a Clear to load verdict, from the carrier's FMCSA record refreshed Jun 13, 2026.

The carrier has an unknown current for-hire authority status because no FMCSA L&I authority row is available as of Jun 13, 2026.

It has an unknown current BIPD insurance status because no FMCSA L&I active-filing snapshot is available as of Jun 13, 2026.

The carrier received 8 roadside inspections in the last 24 months — 0 vehicle-level and 8 driver-level — across 1 state, according to FMCSA roadside-inspection data refreshed Jun 13, 2026.

The carrier has 1 reportable crash in the last 24 months and 0 fatal crashes across the full FMCSA crash record available as of Jun 13, 2026.

It reports 6 power units and 5 drivers in its most recent MCS-150 filing dated May 23, 2024.

It has no FMCSA-assigned safety rating in the federal record refreshed Jun 13, 2026.

Frequently asked

What is MAYFIELD SITE CONTRACTORS INC's USDOT number?

MAYFIELD SITE CONTRACTORS INC's USDOT number is 2144345.

Is MAYFIELD SITE CONTRACTORS INC authorized to operate?

As of Jun 13, 2026, MAYFIELD SITE CONTRACTORS INC is active in the FMCSA register.

What is MAYFIELD SITE CONTRACTORS INC's safety record?

MAYFIELD SITE CONTRACTORS INC has a — vehicle out-of-service rate across 11 roadside inspections, with 1 reportable crash in the last 24 months, and is not currently rated by FMCSA. Vektor's computed risk score is 90/100 (tier: clear).