- Kern Valley Healthcare District
- Kernersville Medical Center
- Kerr and Downs Research
- Kerr County United Way
- Kerr-McGee Corporation
- Kerry Group, LLC
- Kesterson Plumbing and Heating, Inc.
- KET
- Ketchikan Indian Corporation Tribal Health Clinic
- Ketchum, Inc.
- Kettering Health Network
- Kettering Medical Center
- Kewanee Area United Way
- Key Club at T.C. Williams
- Key Rehab
- Keys Acquisiton Group
- Keystone Health Center
- Keystone Hosiery Mills, Inc.
- Keystone Job Corps Center
- Keystone Mountaineer Power Systems Inc.
- Keystone Property Trust
- Keystone Symposia
- Kiamichi Family Medical Center Inc.
- Kidney Foundation of Western New York
- Kidney Urology Foundation of America, Inc.
- Kids Video Connection, Inc. (KVC)
- Kika Medical
- Kikkoman Foods, Inc.
- Killington Grand Conference Resort Hotel
- Killington Village
- Kimberly-Clark Corporation
- Kimberly-Clark Corporation
- Kimberly-Clark Corporation
- Kimpton Muse Hotel
- Kin On
- Kinder Morgan Energy Partners LP
- Kindred Hospital
- Kindred Hospital
- Kindred Hospital - Fort Worth
- Kindred Hospital - Rancho
- Kindred Hospital - Riverside
- Kindred Hospital - San Gabriel Valley
- Kindred Hospital - South Bay
- Kindred Hospital - Tarrant County Arlington)
- Kindred Hospital - Westminster
- Kindred Hospital Baldwin Park
- Kindred Hospital Las Vegas - Sahara Campus
- Kindred Hospital Melbourne
- Kindred Hospital Melbourne
- Kindred Hospital Richmond