Form 5500 · Employee benefit plan · MADISON, WI
ALLIANT ENERGY CORPORATE SERV. INC.
ALLIANT ENERGY CORPORATE SERV. INC.'s employee benefit plan is documented in its annual Form 5500 filing with the Department of Labor. Its broker of record is WILLIS TOWERS WATSON MIDWEST, INC. Coverage is written through VISION SERVICE PLAN and 3 other carriers. The plan's most recent policy period ended in December.
Sourced from U.S. DOL EFAST2 Form 5500 · EIN 39-1914946 · plan 502 · as of Jul 2026
Schedule A insurance contracts
| Carrier | Benefits | Covered | Renews | Commission |
|---|---|---|---|---|
| VISION SERVICE PLAN | Vision | 3,162 | December | $29,012 |
| MINNESOTA LIFE INSURANCE COMPANY | Life | 927 | December | $15,483 |
| MINNESOTA LIFE INSURANCE COMPANY | Life | 31 | December | $164 |
| BLUE CROSS BLUE SHIELD OF WISCONSIN | Stop-loss | 3,136 | December | $0 |
Questions
Who is ALLIANT ENERGY CORPORATE SERV. INC.'s benefits broker?
Per its most recent Form 5500 Schedule A, ALLIANT ENERGY CORPORATE SERV. INC.'s broker of record is WILLIS TOWERS WATSON MIDWEST, INC.
What insurance carrier does ALLIANT ENERGY CORPORATE SERV. INC. use?
ALLIANT ENERGY CORPORATE SERV. INC.'s benefit plan is written through VISION SERVICE PLAN, among 4 disclosed carriers.
When does ALLIANT ENERGY CORPORATE SERV. INC.'s group plan renew?
The most recent Schedule A policy period for ALLIANT ENERGY CORPORATE SERV. INC. ended in December. Group plans typically renew on the same annual cycle.
Where does this data come from?
All figures are drawn from ALLIANT ENERGY CORPORATE SERV. INC.'s public Form 5500 filing with the U.S. Department of Labor (EFAST2). Form 5500 is a public record.