Corporation List [M-O]
- M S D Bluffton-Harrison
- M S D Boone Township
- M S D Decatur Township
- M S D Lawrence Township
- M S D Martinsville Schools
- M S D Mount Vernon
- M S D North Posey Co Schools
- M S D of New Durham Township
- M S D Perry Township
- M S D Pike Township
- M S D Shakamak Schools
- M S D Southwest Allen County
- M S D Steuben County
- M S D Wabash County Schools
- M S D Warren County
- M S D Warren Township
- M S D Washington Township
- M S D Wayne Township
- Maconaquah School Corp
- Madison Consolidated Schools
- Madison-Grant United Sch Corp
- Manchester Community Schools
- Marion Community Schools
- Medora Community School Corp
- Merrillville Community School
- Michigan City Area Schools
- Middlebury Community Schools
- Milan Community Schools
- Mill Creek Community Sch Corp
- Mississinewa Community School Corp
- Mitchell Community Schools
- Monroe Central School Corp
- Monroe County Com Sch Corp
- Monroe-Gregg School District
- Mooresville Con School Corp
- Mt Vernon Community Sch Corp
- Muncie Community Schools
- Nettle Creek School Corp
- New Albany-Floyd Co Con Sch
- New Castle Community Sch Corp
- New Harmony Town & Twp Con Sch
- New Prairie United School Corp
- Nineveh-Hensley-Jackson United
- Noblesville Schools
- North Adams Community Schools
- North Daviess Com Schools
- North Gibson School Corp
- North Harrison Com School Corp
- North Judson-San Pierre Sch Corp
- North Knox School Corp
- North Lawrence Com Schools
- North Miami Community Schools
- North Montgomery Com Sch Corp
- North Newton School Corp
- North Putnam Community Schools
- North Spencer County Sch Corp
- North Vermillion Com Sch Corp
- North West Hendricks Schools
- North White School Corp
- Northeast Dubois Co Sch Corp
- Northeast School Corp
- Northeastern Wayne Schools
- Northern Wells Com Schools
- Northwest Allen County Schools
- Northwestern Con School Corp
- Northwestern School Corp
- Oak Hill United School Corp
- Oregon-Davis School Corp
- Orleans Community Schools