| Acronym | Definition |
|---|
| TCOA➣Tri-County Office on Aging (Lansing, MI) |
| TCOA➣Tax Centers of America (est. 1992) |
| TCOA➣Time Critical Operator Action (US NRC) |
| TCOA➣Tech Connection of America (online retailer) |
| TCOA➣Tesco Centre for Organic Agriculture (UK) |
| TCOA➣Troy Command Officers Association (Troy, Michigan) |
| TCOA➣Third Coast Old Ale (Bell's Brewery, Inc.; Kalamazoo, MI) |
| TCOA➣Thurstaston Caravan Owners Association (UK) |