| 100% | AVRO | 4 | Aircraft firm founded by Sir A V Roe in 1910 |
| 74% | AVRO | 4 | Aircraft firm founded by A V Roe in 1910 |
| 61% | AVRO | 4 | Aircraft firm founded by Alliott Verdon Roe in 1910 |
| 33% | ROME | 4 | City founded by a twin, in myth |
| 33% | AARE | 4 | River that loops around a once medieval city believed to have been founded in 1191 by Berthold V, Duke of Zähringen |
| 32% | CROATIA | 7 | Country founded by King Tomislav in A.D. 924 |
| 32% | OTTOMAN | 7 | Empire founded by Osman in 1290; or a padded bench |
| 32% | AARP | 4 | Grp. founded by a former high-school principal in 1958 |
| 32% | TREASURE | 8 | Found in a chest buried by a pirate |
| 30% | IKEA | 4 | Retail giant founded in 1943 by a 17-year-old |
| 28% | SINGAPORE | 9 | Country founded by Sir Stamford Raffles |
| 27% | AROMA | 5 | Found by a nose |
| 27% | EDS | 3 | I.T. firm founded by Ross Perot |
| 27% | FIAT | 4 | Italian motor manufacturing firm founded by Giovanni Agnelli |
| 27% | THEWITCHELM | 11 | 2018 novel by Tana French whose central mystery involves a skull found in a tree (3 wds.) |
| 27% | REDISCOVERED | 12 | Found by a whole new generation |
| 26% | REFORMPARTY | 11 | Political organization founded in 1995 by 35-Down ... and a literal hint to each set of circled letters |
| 26% | ETON | 4 | College founded by a king |
| 26% | VASSAR | 6 | School founded by a brewer |
| 26% | UVA | 3 | Sch. founded by a president |
| 26% | ORALB | 5 | Company founded by a periodontist |
| 26% | USO | 3 | Grp. founded in part by the Y.M.C.A. |
| 26% | ADLER | 5 | Irene in a short story by Sir Arthur Conan Doyle |
| 26% | SAAB | 4 | Auto founded by an aircraft company |
| 26% | E*TRADE | 7 | Online investment firm founded in 1991 |
| 26% | THENATION | 9 | Magazine founded by abolitionists in 1865 |
| 26% | LIMA | 4 | City founded by Pizarro in 1535 |
| 26% | ORU | 3 | Sch. founded by a Pentecostal preacher |
| 26% | SANTIAGO | 8 | World capital founded by a conquistador |
| 26% | AVON | 4 | Company founded by a Shakespeare fan |