Carrierintel Safety Score: 72/100. 6 inspection violations in 12 months. Last inspected Oct 2026.
DOT 5103151MC 94417342ActiveNew Entrant · month 4 of 18Motor CarrierInterstateCNA Insurance Companies · $1,000,000 · 1 policyRHINELANDER, WI
COMPANY
Authority since
2026-07-23
MCS-150
—
Fleet
131 units · 60 trailers · 177 drivers
ADDRESS
Physical
909 BOYCE DR RHINELANDER, WI 54501-3836
Mailing
Same as physical
CONTACT
Phone
7153658700
Email
skarpf@mussonbrothers.com
OFFICERS
Primary Officer
Mike Sikma
Title
President
Email
msikma@mussonbrothers.com
Phone
+1 (262) 790-5060
OPERATION & CARGO
Operation classification
Authorized For Hire
Specialty
Heavy Haul / Oilfield
Cargo types
1
Machinery, Large Objects
Self-reported by the company on its latest MCS-150 filing (FMCSA census). Reflects what the carrier is authorized and equipped to haul, not actual recent loads. Specialty is our summary of the declared cargo mix.
AUTHORITY
3 mo
Active authority
INSURANCE
1 active
CNA Insurance Companies
RISK GRADE
Moderate Risk
1 risk factors · 3 strengths
OOS RATE
0.0%
0 / 3 inspections
Carrierintel Safety Score
Rolling 12-month heuristic based on inspections, OOS, violations, crashes & fatalities. Not the official FMCSA SMS score.
72
out of 100
Good
Markers: OOS inspection Crash Fatality
Fleet vs Reality
last 12 months · power-unit VINs from roadside inspections