| Entity Name | Type | License # | City | Status | Action |
|---|---|---|---|---|---|
| NIX SECURITY SERVICES | Business | 122000007 | CHICAGO | NOT RENEWED | Verify |
| NLIS INVESTIGATIONS | Business | 117001464 | SCHAUMBURG | Non Sufficient Fund Check | Verify |
| NO BOUNDARIES INVESTIGATION & SECURITY INC | Business | 122001169 | CHICAGO | NOT RENEWED | Verify |
| NO BOUNDARIES INVESTIGATION & SECURITY INC | Business | 102000293 | CHICAGO | ACTIVE | Verify |
| NO1 BEFORE US PROTECTION & SECURITY AGENCY LLC | Business | 122001465 | TINLEY PARK | ACTIVE | Verify |
| NOBLE INVESTIGATIVE SERVICES INC | Business | 117001012 | GLENVIEW | NOT RENEWED | Verify |
| NON-STOP LOCKSMITH INC | Business | 192000278 | CHICAGO | ACTIVE | Verify |
| NONSTOP LOCKSMITH INC DBA ET LOCKSMITH & SECURITY | Business | 193000025 | CHICAGO | ACTIVE | Verify |
| NORCOMM PUBLIC SAFETY COMMUNICATIONS INC | Business | 262000137 | ELMHURST | INOPERATIVE | Verify |
| NORCOMM PUBLIC SAFETY COMMUNICATIONS INC | Business | 128000216 | ELMHURST | ACTIVE | Verify |
| NORCOMM PUBLIC SAFETY COMMUNICATIONS INC | Business | 122001539 | ELMHURST | ACTIVE | Verify |
| NORCOMM PUBLIC SAFETY COMMUNICATIONS INC | Business | 117001858 | ELMHURST | ACTIVE | Verify |
| NORCOMM PUBLIC SAFETY COMMUNICATIONS INC | Business | 127001002 | ELMHURST | ACTIVE | Verify |
| NORMAN SECURITY SYSTEMS INC | Business | 127000393 | CHICAGO | NOT RENEWED | Verify |
| NORRED & ASSOCIATES INC | Business | 122001105 | ROMEOVILLE | NOT RENEWED | Verify |
| NORSHORE ALARM CO INC | Business | 127000307 | LIBERTYVILLE | NOT RENEWED | Verify |
| NORTH AMERICAN ADVISORY INC | Business | 117000561 | HOMEWOOD | INOPERATIVE | Verify |
| NORTH AMERICAN ALARM | Business | 127000259 | ELMHURST | INOPERATIVE | Verify |
| NORTH PARK PATROL | Business | 201000084 | SCHILLER PARK | ACTIVE | Verify |
| NORTH PARK PATROL | Business | 122000026 | SCHILLER PARK | INOPERATIVE | Verify |
| NORTH PROTECTION SERVICES INC | Business | 127001048 | SCHAUMBURG | NOT RENEWED | Verify |
| NORTH SHORE INVESTIGATIONS INC | Business | 117001045 | NORTHBROOK | ACTIVE | Verify |
| NORTH SHORE SECURITY | Business | 127000399 | EVANSTON | CLOSED | Verify |
| NORTH STAR PATROL | Business | 122000033 | MCHENRY | NOT RENEWED | Verify |
| NORTH SUBURBAN ALARM | Business | 127000706 | WHEELING | INOPERATIVE | Verify |
| NORTH SUBURBAN PATROL | Business | 201000041 | WILMETTE | ACTIVE | Verify |
| NORTH SUBURBAN PATROL INC | Business | 122000141 | WILMETTE | NOT RENEWED | Verify |
| NORTH SUBURBAN PATROL INC | Business | 117000209 | WILMETTE | NOT RENEWED | Verify |
| NORTH SUBURBAN SECURITY CONSULTANTSINC | Business | 122000802 | NORTHBROOK | INACTIVE | Verify |
| NORTHEASTERN INVESTIGATIONS | Business | 117000620 | OAK PARK | Non Sufficient Fund Check | Verify |
| NORTHERN ILLINOIS ALARM COMPANY | Business | 127000438 | WOODSTOCK | NOT RENEWED | Verify |
| NORTHERN ILLINOIS SECURITY & INVESTIGATION | Business | 122001262 | CHERRY VALLEY | INACTIVE | Verify |
| NORTHERN INVESTIGATIONS INC | Business | 117001053 | CHICAGO | NOT RENEWED | Verify |
| NORTHERN KEY & LOCK INC | Business | 192000206 | CRYSTAL LAKE | NOT RENEWED | Verify |
| NORTHERN SECURITY SERVICES | Business | 127000950 | CHICAGO | NOT RENEWED | Verify |
| NORTHERN SECURITY SERVICES INC | Business | 122000709 | CHICAGO | NOT RENEWED | Verify |
| NORTHERN TRUST BANK O'HARE | Business | 120500011 | CHICAGO | CANCELLED | Verify |
| NORTHERN TRUST BANK/OHARE | Business | 120000070 | CHICAGO | CANCELLED | Verify |
| NORTHERN TRUST CO | Business | 120000035 | CHICAGO | NOT RENEWED | Verify |
| NORTHROP GRUMMAN INFORMATION TECHNOLOGY INC | Business | 127001271 | CHICAGO | NOT RENEWED | Verify |
| NORTHROP GRUMMAN SYSTEMS CORPORATION | Business | 127001490 | CHICAGO | NOT RENEWED | Verify |
| NORTHSTAR INTELLIGENCE GROUP INC | Business | 117001840 | CHICAGO | ACTIVE | Verify |
| NORTHSTAR SECURITY GROUP | Business | 122000704 | ELGIN | NOT RENEWED | Verify |
| NORTHWEST | Business | 122001679 | SPRINGFIELD | ACTIVE | Verify |
| NORTHWEST ALARM SERVICES | Business | 127000314 | CRYSTAL LAKE | ACTIVE | Verify |
| NORTHWEST CORPORATE | Business | 102000128 | WHEATON | ACTIVE | Verify |
| NORTHWEST CORPORATE PROTECTION | Business | 122000001 | WHEATON | NOT RENEWED | Verify |
| NORTHWEST CORPORATE PROTECTION | Business | 123000100 | ROCKFORD | INOPERATIVE | Verify |
| NORTHWEST CORPORATE PROTECTION | Business | 117000001 | WHEATON | NOT RENEWED | Verify |
| NORTHWEST CORPORATE PROTECTION | Business | 118000088 | ROCKFORD | NOT RENEWED | Verify |