- Kirby Pines Retirement Community
- Kirkpatrick and Lockhart, Nicholson, Graham LLP
- Kirtland Airforce Base
- Kirtland Federal Credit Union
- Kishwaukee United Way
- Kissimmee St. Cloud Convention and Visitors Bureau
- Kiwanis Club
- Kiwanis Club of Franklin Square
- Kiwanis Club of Milwaukee
- Kiwanis Gulf Beaches
- Klamath County Oregon
- Klaussner Furniture Industries, Inc
- Klein Management Systems
- Klinger Constructors LLC
- Kmart
- Knapp Medical Center
- Knight Transportation
- Knights of Columbus Council 626
- KNOLL
- Knowledge Now
- Knowledge Systems and Research Inc.
- Knox College
- Knox Community Hospital
- Knox County Board of Commissioners
- Knox County Government
- Knoxville Area Community Hospital
- Knoxville Convention and Visitors Bureau
- Knoxville Tourism and Sports Corporation
- Kohl's
- Kokopelli Property Management
- KONG Company
- Konover Construction Corporation
- Konza United Way
- Koppers Inc.
- Korean American Coalition Sacramento Chapter
- Korean American Coalition, Los Angeles Chapter
- Korean Community Center of East Bay
- Korean Community Development Services Center
- Korean Resource Center
- Korrigan Media International
- Kosairs Children's Hospital
- Kosclusko Community Health
- Kossuth Regional Hospital
- KP Communications
- KPMG
- Kraemer Brothers Construction
- Kraft Cleaners
- Kraft Foods
- Kraft Foods, Nabisco Biscuit Division
- Kraft Heinz Davenport