| 100% | FOUNDED | 7 | Date a company, organization, school started |
| 43% | IPLEDGE | 7 | Start of a daily school recital |
| 43% | ABCD | 4 | Start of a grade school recitation |
| 42% | REBOUND | 7 | Start dating right after a breakup |
| 42% | PTA | 3 | Organization with a School of Excellence program |
| 42% | MOVEDON | 7 | Started dating again after a breakup, say |
| 42% | OSAY | 4 | Start of a song sung in school |
| 42% | YEAR | 4 | A school one starts in the fall |
| 42% | ASOF | 4 | Words before a start date |
| 41% | PTA | 3 | Organization that might hold a school carnival: Abbr. |
| 41% | PTA | 3 | Organization that might hold a school fundraiser: Abbr. |
| 41% | NEA | 3 | Organization for many a public school teacher: Abbr. |
| 41% | ASSIGNEDSEAT | 12 | One in a grade school organization |
| 41% | ESTD | 4 | Started, as a company (Abbr.) |
| 40% | KIA | 3 | Automaker that started as a bicycle company |
| 40% | ASOF | 4 | Words before a start date (2 wds.) |
| 40% | VCMONEY | 7 | Funding for a start-up company, informally |
| 39% | RENELACOSTE | 11 | Athlete who started a clothing company in 1933 |
| 39% | HISTORY | 7 | High school subject with a lot of dates |
| 39% | PTA | 3 | Organization that often holds bake sales to support a school: Abbr. |
| 39% | FIRSTDAY | 8 | Start of a school year or a new job (2 wds.) |
| 38% | DTS | 3 | American company which started as a competitor to Dolby: Abbr. |
| 38% | DELL | 4 | Computer company started in a University of Texas dorm room |
| 38% | WAYMO | 5 | Self-driving car company that started as a Google project |
| 38% | BESTFOOTFORWARD | 15 | Apple TV+ show about a young amputee starting public school |
| 37% | COREBUSINESS | 12 | Main focus of a company, and of the starts of 19-, 26- and 48-Across |
| 37% | SILICONVALLEY | 13 | Comedy series about a high-tech start-up company: 2 wds. |
| 36% | TONKA | 5 | Toy truck maker that started as a gardening tools company, oddly enough |
| 36% | BOTTOMS | 7 | 2023 comedy about two high school girls who start a fight club |
| 35% | TAKEITEAS | 9 | Herbal beverage company started by a pundit and former "Star Trek" star? (7) |