Nebraska 
All contractors doing business in counties with a population of 100,000 or more need a license to do business in Nebraska. So, you ask, how many counties in Nebraska have reached this population pinnacle? Three. Douglas, Lancaster and Sarpy Counties.

Electricians must be licensed by the state of Nebraska.

To find out if an electrician is licensed in Nebraska, call (402) 471-3550.

Out-of-State Corporations
Out-of-state corporations must get a Certificate of Authority to do Business in Nebraska from the Nebraska Secretary of State. To apply for this certificate, click on  Secretary of State.