Registered contractors in Alton, Iowa

Contractors with an active Iowa license and a business address in Alton (Sioux County). Each listing shows what the state has on file.

• Aalbers Excavating/Trucking INC
  Other Building Equipment Contractors · #C132859
  Active Insurance not published by state
• Brunst Construction
  Carpentry & Cabinets · #C123545
  Active Insurance not published by state
• Cleveringa Excavating LLC
  Site Preparation Contractors · #C102120
  Active Insurance not published by state
• De Graaf Plumbing LLC
  Plumbing, HVAC · #C133875
  Active Insurance not published by state
• Four Way Contracting INC
  Roofing · #C094477
  Active Insurance not published by state
• Van Ommeren Carpentry Services DBA Voc Services
  Residential Remodelers · #C133255
  Active Insurance not published by state

Last checked against state records on Oct 4, 2026. Source: Iowa Department of Inspections, Appeals, and Licensing, via the Iowa Data Hub (data.iowa.gov), licensed CC BY 4.0. How we get this data.