1. DCEO
  2. Small Business Assistance


The Illinois Department of Commerce provides the LocationOne Information System (LOIS) for conducting searches on available commercial and industrial sites and building locations throughout Illinois. Maintained in partnership with communities across the state, LocationOne is designed to address the site selection requirements of businesses and their consultants.

Conduct a statewide or multi-regional search

Search within an economic development region:
Click a region on the map

Information where properties are located:
Community Profiles - largest employers, taxes, wages, schools, housing, census data, and more on Illinois cities and counties

For representatives marketing their communities, if you would like to include your local information, please view the LOIS Basic Training Webinar (11/11/2016) and contact for a user ID.


For more information contact:

David Pierson
Office of Business Development
Illinois Department of Commerce
312.814.1346 or 800.252.2923

Northwest RegionNorthern Stateline RegionNortheast RegionWest Central RegionNorth Central RegionEast Central RegionCentral RegionSouthwest RegionSouthEast RegionSouthern Region