CESAs "serve educational needs in all areas of Wisconsin by serving as a link between school districts and between school districts and the state. Cooperative Educational Service Agencies may facilitate communication and cooperation among all public and private schools, agencies, and organizations that provide services to pupils." (Wisconsin State Statute, Chapter 116, 1983)
| Name | Contact | Headquarters | Website |
|---|---|---|---|
| CESA 1 | 262-787-9500 | Pewaukee | http://www.cesa1.k12.wi.us/ |
| CESA 2 | 262-473-1473 | Whitewater | http://www.cesa2.k12.wi.us/ |
| CESA 3 | 608-822-3276 | Fennimore | https://www.cesa3.org/ |
| CESA 4 | 608-786-4800 | West Salem | https://www.cesa4.k12.wi.us/ |
| CESA 5 | 608-745-5400 | Portage | https://www.cesa5.org/ |
| CESA 6 | 920-233-2372 | Oshkosh | http://www.cesa6.org/ |
| CESA 7 | 920-492-5960 | Green Bay | https://www.cesa7.org/ |
| CESA 8 | 920-855-2114 | Gillett | http://www.cesa8.k12.wi.us/ |
| CESA 9 | 715-453-2141 | Tomahawk | http://www.cesa9.k12.wi.us/ |
| CESA 10 | 715-723-0341 | Chippewa Falls | http://www.cesa10.k12.wi.us/ |
| CESA 11 | 715-986-2020 | Turtle Lake | http://www.cesa11.k12.wi.us/ |
| CESA 12 | 715-682-2363 | Ashland | http://www.cesa12.org/ |