| Florida Grand Opera | A | FL | Young Artist Program | RAP | Year-Round | No | Yes |
| Houston Grand Opera | A | TX | HGO Studio | YAP | Year-Round | No | Yes |
| Los Angeles Opera | A | CA | Domingo-Colburn-Stein | YAP | Year-Round | No | Yes |
| Lyric Opera Chicago | A | IL | Patrick G. and Shirley W. Ryan Center | YAP | Year-Round | No | Yes |
| Metropolitan Opera | A | NY | Lindemann Young Artist Development Program | YAP | Year-Round | No | Yes |
| Michigan Opera Theatre | A | MI | MOT Studio | YAP | Year-Round | No | No |
| San Francisco Opera | A | CA | Adler Fellowship | YAP | Year-Round | No | Yes |
| Santa Fe Opera | A | NM | Apprentice Singer Program | YAP | Summer | No | Yes |
| Utah Opera | A | UT | Young Artist Program | YAP | Year-Round | No | Yes |
| Washington National Opera | A | DC | Domingo-Cafritz | YAP | Year-Round | No | Yes |
| Arizona Opera | B | AZ | Marion Roose Pullin Arizona Opera Studio | YAP | Year-Round | No | No |
| Atlanta Opera | B | GA | Atlanta Opera Studio | RAP | Year-Round | No | No |
| Boston Lyric Opera | B | MA | Jane and Steven Akin Emerging Artists | RAP | Year-Round | No | No |
| Central City Opera | B | CO | Bonfils-Stanton Foundation Artist Training Program | YAP | Summer | Yes | Yes/No |
| Cincinnati Opera | B | OH | Young Artist Program | YAP | Summer | No | No |
| Florentine Opera | B | WI | Florentine Opera Studio | YAP | Year-Round | No | No |
| Fort Worth Opera | B | TX | Hattie May Lesley Apprentice Artists | YAP | Partial-Year | No | No |
| Glimmerglass Festival | B | NY | Young Artist Program | YAP | Summer | No | No |
| Lyric Opera Kansas City | B | MO | Resident Artists/Young Artists | Both | Year-Round | Yes | No | UMKC/University of Kansas |
| San Francisco Opera Center | B | CA | Merola Opera Program | YAP | Summer | No | No |
| Minnesota Opera | B | MN | Resident Artist Program | RAP | Year-Round | No | No |
| Opera Colorado | B | CO | Young Artist Program | YAP | Year-Round | No | No |
| Opera San Jose | B | CA | Resident Ensemble | RAP | Year-Round | No | No |
| Opera Theatre St. Louis | B | MO | Gerdine Young Artist Program | YAP | Summer | No | Yes |
| Palm Beach Opera | B | FL | Benenson YAP/Apprentice Artist Program | YAP | Partial-Year | Yes | No |
| Pittsburgh Opera | B | PA | Resident Artist Program | RAP | Year-Round | No | No |
| Portland Opera | B | OR | Resident Artist Program | RAP | Partial-Year | No | Yes |
| Sarasota Opera | B | CA | Studio Artists/Apprentice Artists | YAP | Partial-Year | Yes | No |
| Utah Festival Opera & Musical Theatre | B | UT | Festival Artists | RAP | Summer | No | No |
| Virginia Opera | B | VA | Emerging Artists | RAP | Year-Round | No | No |
| Chautauqua Opera | C | NY | Apprentice Artists/Studio Artists | YAP | Summer | Yes | Yes/No |
| Chicago Opera Theater | C | IL | Young Artist Program | YAP | Year-Round | No | Yes | Roosevelt University CCPA |
| Dayton Opera | C | OH | Artists-in-Residence Program | YAP | Partial-Year | No | No |
| Des Moines Metro Opera | C | IA | Apprentice Artist Program | YAP | Summer | No | No |
| Indianapolis Opera | C | IN | Resident Artist Program | YAP | Partial-Year | No | No |
| Kentucky Opera | C | KY | Barbara and Halsey Sandford Studio Artist Program | YAP | Partial-Year | No | No |
| Madison Opera | C | WI | Studio Artists | YAP | Year-Round | No | No |
| Nashville Opera | C | TN | Mary Ragland Young Artist Program | YAP | Partial-Year | No | No |
| Opera Memphis | C | TN | Artists in Residence | YAP | Year-Round | No | No | Univ. of Memphis |
| Opera Santa Barbara | C | CA | Chrisman Studio Artist Program | YAP | Partial-Year | No | No |
| Opera Saratoga | C | NY | FestArtists/Studio Artists/Apprentice Artists | YAP | Summer | Yes | No |
| Pensacola Opera | C | FL | Artists in Residence | YAP | Partial-Year | No | No |
| St. Petersburg Opera | C | FL | Emerging Artists | YAP | Year-Round | No | No |
| Toledo Opera | C | OH | Artists in Residence | YAP | Year-Round | No | No |
| Tulsa Opera | C | OK | Young Artist Program | YAP | Year-Round | No | No |
| Wolf Trap Opera | C | VA | Filene Young Artists/Wolf Trap Studio | RAP/YAP | Summer | Yes | Yes/No |
| Charlottesville Opera (formerly Ash Lawn Opera) | D | VA | Young Artist Program | YAP | Summer | No | No |
| Mobile Opera | D | AL | Madame Rose Palmai Tenser Developing Artist Program | YAP | Year-Round | No | No |
| Opera North | D | NH | Resident Artist Program | RAP | Summer | No | No |
| Opera on the James | D | VA | Tyler Young Artist Program | YAP | Partial-Year | No | No |
| Shreveport Opera | D | LA | Resident Artist Program | YAP | Year-Round | No | No |
| Tri-Cities Opera | D | NY | Resident Artist Training Program/MM Partnership | RAP/YAP | Year-Round | Yes | Yes | SUNY Binghamton |
| Opera Maine (formerly PORTOpera) | D | ME | Studio Artists | YAP | Partial-Year | No | No |
| Cedar Rapids Opera Theatre | D | NY | Young Artist Program | YAP | Partial-Year | No | No |
| Crested Butte Music Festival | NA | CO | Opera Studio | YAP | Summer | No | No |
| Opera at Caramoor | NA | NY | Bel Canto at Caramoor | YAP | Summer | No | No |
| Martina Arroyo Foundation | NA | NY | Prelude to Performance | YAP | Summer | No | No |