# Midcontinent Independent System Operator Inc: Form 990 financials (2023)

**Budget Signal Score:** 50/100

| Field | Value |
|---|---|
| Organization | Midcontinent Independent System Operator Inc |
| EIN | 43-1827033 |
| Location | Carmel, IN |
| Cause area | Public & societal benefit (W80) |
| Tax year | 2023 |
| Revenue | $548,603,867 |
| Expenses | $548,603,867 |
| Assets | $2,918,427,543 |
| Liabilities | $2,918,427,543 |
| Contributions | $119,528 |
| Program revenue | $400,881,164 |
| Filing | https://projects.propublica.org/nonprofits/download-filing?path=IRS%2F431827033_202312_990O_2025032023243576.pdf |

## Why this score
- Revenue of $100M or more.

Source: ProPublica Nonprofit Explorer API (IRS Form 990 data) (https://projects.propublica.org/nonprofits/organizations/431827033). Last refreshed: 2026-11-04T01:37:43.008Z.
Financials from IRS Form 990 data via ProPublica Nonprofit Explorer; filings lag one to two years. Organization-level only: officer and employee compensation is not shown. Informational only.