| 100% | GIANNI | 6 | Founder of Versace, Donatella's brother |
| 56% | GIANNI | 6 | First name of Versace's founder |
| 47% | ROMULUS | 7 | Founder of Rome, twin brother of Remus |
| 47% | MCDONALD | 8 | Surname of the brothers who founded the world's largest burger chain |
| 46% | KBTOYS | 6 | Chain of children's stores founded by the Kaufman brothers (hence its name) |
| 43% | PENN | 4 | Founder of Pittsburgh's state |
| 43% | JPMORGAN | 8 | Founder of U.S. Steel |
| 42% | ROMULUS | 7 | One of the twin brothers who founded Rome |
| 42% | MENES | 5 | Founder of Egypt's first dynasty |
| 42% | PERON | 5 | Founder of Argentina's Justicialist Party |
| 42% | RAMSESI | 7 | Founder of Egypt's 19th dynasty |
| 42% | GIANNI | 6 | Donatella's designer brother |
| 42% | BABAR | 5 | Founder of Celesteville, in children's lit |
| 41% | RAYKROC | 7 | Founder of the McDonald's empire |
| 41% | JUDAH | 5 | Founder of one of Israel's Twelve Tribes |
| 41% | JEBBUSH | 7 | Founder of the Foundation for Florida's Future |
| 41% | ANNLEE | 6 | Founder of the first U.S. Shaker colony |
| 41% | ANNLEE | 6 | Founder of the Shakers, in the U.S. |
| 41% | PAPP | 4 | Founder of New York's Public Theater |
| 41% | ICET | 4 | Founder of heavy metal's Body Count |
| 41% | BEZOS | 5 | The founder of Amazon's surname |
| 40% | STANLEY | 7 | Founder of Radiator Springs, he's a steamer model |
| 40% | RIPLEY | 6 | Founder of New York's Odditorium in 1939 |
| 40% | ONEIL | 5 | William ___, founder of Investor's Business Daily |
| 40% | WANAMAKER | 9 | Sam __, founder of Shakespeare's Globe Theatre |
| 39% | LUIGI | 5 | Brother of Nintendo's Mario |
| 39% | ALIBABA | 7 | Cassim's brother of folklore |
| 39% | RFK | 3 | Brother of DDE’s follower |
| 39% | ARON | 4 | Cal's "East of Eden" brother |
| 39% | FRATRICIDE | 10 | Act of killing one’s brother |