# Alliant Energy Corporate Serv. INC. 401(k) Plan
Source: https://planprovider.pro/companies/alliant-energy-corporate-serv-inc-391914946-502

> Alliant Energy Corporate Serv. INC.'s 401(k) plan: 3,448 participants, plan year 2024 financials, providers, and benchmarks from Form 5500.

Form 5500 filing data for plan year 2024.

## Plan Snapshot

- **Plan Sponsor:** Alliant Energy Corporate Serv. INC.

- **Sponsor EIN:** 391914946

- **Sponsor Address:** 4902 N. BILTMORE LANE, MADISON, WI, 537182148

- **Plan Type:** 401(k)

- **Plan Number:** 502

- **Total Participants:** 3,448

- **Total Assets:** $69.7M

## Key Plan Design Features

- **Auto-Enrollment:** No

- **Auto-Escalation:** No

- **Allows Roth Contributions:** No

- **Participant Loans:** No

- **Participant-Directed Investments:** No

- **ERISA Section 404(c) Fiduciary Safe Harbor:** No

## Plan Financials by Year

| Year|Participants|Total Assets|Employer Contrib.|Employee Contrib.|

| 2024|3,448|$69.7M|$15.8M|$151,409|

| 2023|3,314|$71.3M|$17.1M|$288,939|

| 2022|3,423|$70.2M|$8.3M|$4.2M|

## Service Providers (Schedule C)

Vendors paid $5,000 or more for services to the plan, ranked by total compensation (direct + indirect fees).

| Provider Name|
Role|
Direct Compensation|
Indirect Compensation|
Total Fees|

| BLUE CROSS & BLUE SHIELD OF WISCONS|Recordkeeper|$261,083|—|$261,083|

| BUSINESSOLVER|Recordkeeper|$244,974|—|$244,974|

| WILLIS TOWERS WATSON VIA BENEFITS|Recordkeeper|$83,396|—|$83,396|

| WILLIS TOWERS WATSON US LLC|Actuary|$43,158|—|$43,158|

| AON INVESTMENTS USA INC|Investment Advisor|$42,898|—|$42,898|

| COLEMAN & WILLIAMS, LTD.|Auditor|$36,450|—|$36,450|

| PARAMETRIC DEFENSIVE EQUITY FUND|Investment Advisor|$34,266|—|$34,266|

| DELTA DENTAL OF WISCONSIN|Recordkeeper|$28,396|—|$28,396|

| CONNECTYOURCARE, LLC (CYC)|Recordkeeper|$24,155|—|$24,155|

| PRINCIPAL CUSTODY SOLUTIONS|Custodian / Trustee|$17,557|—|$17,557|

### Verified Provider Profiles

Direct links to verified profiles of matched retirement plan providers on PlanProvider.Pro:

- [WILLIS TOWERS WATSON US LLC](https://planprovider.pro/provider/lincoln-financial-group) — Actuary

- [PRINCIPAL CUSTODY SOLUTIONS](https://planprovider.pro/provider/principal-financial-group-inc) — Custodian / Trustee

## Plan Fees & Expenses

Annual service provider fees and administrative expenses sourced from DOL Form 5500 filings.

- **Total Service Provider Fees:** $816,333

- **Estimated Expense Ratio:** 1.170% of plan assets

### Historical Administrative Expenses

Breakdown of administrative expense categories reported on Form 5500 filings.

| Year|
Total Admin Expenses|
Investment Mgmt Fees|
Contract Admin Fees|
IQPA Audit Fees|
Professional Fees|

| 2024|$816,210|$77,164|$641,881|$36,450|—|

| 2023|$1,665,549|$142,251|$1,522,298|—|—|

| 2022|$1,266,961|$100,302|$1,066,115|—|$98,544|

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- [Alliant Energy Corporate Serv.INC.](https://planprovider.pro/companies/alliant-energy-corporate-serv-inc-391914946-501) — 3,085 participants

- [Alliant Energy Corporate Services, INC.](https://planprovider.pro/companies/alliant-energy-corporate-services-inc-401k-plan) — 2,987 participants

[View full interactive plan profile on PlanProvider.Pro](https://planprovider.pro/companies/alliant-energy-corporate-serv-inc-391914946-502)

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