This list is incomplete. I suspect that Rathaus wrote more orchestral music in the period between 1945 and his death in 1954.
KAROL RATHAUS: A CATALOGUE OF THE ORCHESTRAL MUSIC
1921-22:Symphony No.1, op.5: 38 minutes + (Decca cd)
1923: Symphony No.2, op. 7: 34 minutes + (cpo cd)
1924-25:Four Dance Pieces for orchestra, op.15: 20 minutes
1925-26:Ballet "Der letzte Pierrot", op. 19: 38 minutes + (Decca cd)
1928: Overture, op.22: 16 minutes + (Signum cd)
"Lied und Fuge" for chorus and chamber orchestra, op.26
1929: Suite for Violin and Chamber Orchestra, op.27: 15 minutes + (Signum and Centaur cds)
1930: Suite for Orchestra, op.29: 22 minutes
1932: Serenade for Orchestra, op.35 + (Centaur cd)
1937: Ballet "Le Lion amoureaux", op.42 (and Ballet Suite, op.42a: 15 minutes + Musicaphon cd))
1938: "Notturno-Jacob's Dream" for orchestra, op.44: 12 minutes
1939: Piano Concerto, op.45: 25 minutes + (Koch cd)
1941: Music for Strings(Adagio for Strings), op. 49: 10 minutes
1942-43:Symphony No.3, op.50: 33 minutes + (cpo cd)
1943: "Polonaise symphonique" for orchestra, op.53: 6 minutes + (Koch and Centaur cds)
1945: Psalm XXIII for tenor, women's chorus and orchestra, op.54
"Vision dramatique" for orchestra, op.55: 12 minutes + (Koch cd)
1950-51:Sinfonia concertante for orchestra, op.68
1953: Prelude for Orchestra("Louisville Prelude"), op.71: 12 minutes
The 1928 Overture op.22 exists on SIGNUM.
The Sinfonia Concertante Op. 68 is from 1950-51.
Also see the following CD release:
http://www.jpc.de/jpcng/classic/detail/-/art/Karol-Rathaus-1895-1954-Suite-op-29/hnum/2178448 (http://www.jpc.de/jpcng/classic/detail/-/art/Karol-Rathaus-1895-1954-Suite-op-29/hnum/2178448)
Moreover, the Suite Op. 27 was released on a Signum disc, and the Vision Dramatique is on the same Koch CD as the Piano Concerto and the Suite Op. 29 on a Signum disc as well.
Thank you :)