Cook County association and contractor changes
44 changes observed across 34 organizations in Cook County, Illinois, which is 35.2% of everything on file for Illinois.
The newest change on file was observed on November 1, 2026. This is an observation date, not a source refresh date or the date the event took effect. Refresh timing varies by source.
The most recent change observed in Cook County itself was on October 1, 2026. A quiet county is normal, and it says nothing about whether collection is running.
Two different kinds of change
0 association events and 44 contractor licensing events. License events are not board changes. Organizations may appear in more than one change type.
By change type
Each bar shows what share of the 44 changes observed here came from one type. The figure beside it is the same type measured across all of Illinois, so a gap between the two is a local signature rather than a statewide pattern.
- License added22 · 20 organizations
50.0% of changes here, 53.6% across Illinois
- License lapsed22 · 19 organizations
50.0% of changes here, 46.4% across Illinois
How Cook County compares
Cook County holds 35.2% of the 125 changes on file for Illinois, ranking 1st of 23 counties with any observed change.
Organizations here that changed at all changed 1.3 times on average, against 1.2 statewide. That is effectively the state average, so the county's volume is a function of its size rather than unusual churn.
The clearest local difference is license lapsed, at 50.0% of changes here against 46.4% across Illinois.
Which organizations, and when
The change feed names the organization behind each event, the seats that moved and the date it was observed, and can email you when a new match appears in Illinois.
Explore association changes in ILHow these numbers are produced
- What a change is
- An observed difference between two snapshots of the public record: a director arriving, a director leaving, a title moving between seats, a president handing over, a registration status changing, or a contractor license being added or lapsing. License events are not board changes. One filing that replaces three directors counts as the changes it contains, not as one event.
- Where it comes from
- State corporate and regulatory filings that organizations are required to make. Nothing here is surveyed, modelled or estimated. A change appears when a source publishes it, which is usually after the underlying event occurred, so these counts trail reality rather than predicting it.
- What an organization count means
- The number of distinct organizations with at least one observed change, not the number of organizations in Cook County, Illinois. A rate of changes per organization is therefore an intensity measure across the affected set only.
- What is deliberately not here
- No association is named, no officer is named, and no individual contact information appears on these pages. They report how much and where. Use the signed-in feed to inspect the organization and evidence behind an event.
- Observed through
- The newest change counted on this page was observed on October 1, 2026. Figures describe what a source published on a given date, not a legal determination of who holds an office.