- 2 Acer
- 8 AGORA
- 3 Alfred Music Publishing
- 2 Alma Edizioni
- 3 ALTERDYSTRYBUCJA
- 2 Anakonda
- 10 ANIME
- 3 Anna Woźniak-Kot
- 3 Aptel
- 2 Art
- 2 Arthaus Musik
- 3 Arystoteles
- 18 ASUS
- 6 AveryZweckform
- 2 AXAGON
- 3 Bantex
- 4 Bc.edu
- 56 Cambridge University Press
- 10 Cengage
- 9 Cengage Learning, Inc
- 2 Clare, Antonia
- 23 Cle International
- 32 Cornelsen
- 2 Cornelsen Verlag
- 5 Cornford, Annie
- 7 Cotton, David
- 2 Cotton David, Falvey David, Kent Simon
- 2 Crace, Araminta
- 8 DASAN
- 2 David Yates
- 24 Dell
- 15 Didier
- 4 Dromader
- 6 Edding
- 3 EDILINGUA
- 5 Esselte,Esselte sp z o.o
- 5 Europapier-Impap
- 3 FILMOSTRADA
- 5 GALAPAGOS
- 12 Gembird
- 21 Hachette
- 3 Hachette Book Group
- 11 Heinle
- 3 Hewlett-Packard
- 16 HP
- 9 hp inc.
- 4 Hueber Verlag
- 4 IBOX
- 4 Inny producent
- 3 John Wiley & Sons Inc
- 28 Kino Świat
- 6 Klett
- 3 Klett-Langenscheidt
- 24 Klett Sprachen
- 8 Klett Sprachen GmbH
- 11 LektorKlett
- 25 Lenovo
- 3 Levi's
- 5 LiteOn
- 4 Longman / Pearson Education
- 7 Longman pearson
- 3 LYX
- 5 Maclean
- 4 Macmillan Education
- 15 Marc Dorcel (FR)
- 18 Microsoft
- 3 Neopak
- 6 Opticon
- 23 Oxford University Press
- 5 Paulmann
- 42 Pearson
- 5 Pearson Education
- 48 PEARSON Education Limited
- 14 Pearson Longman
- 4 Pentel
- 9 Pilot
- 3 Pioneer
- 12 praca zbiorowa
- 8 Q-CONNECT
- 6 Qoltec
- 14 Rafael
- 3 Savio
- 10 Telewizja Polska
- 12 Telewizja Polska S.A.
- 3 Tetis
- 4 Titanum
- 3 VOKOSMILE
- 140 Whites Chefs Clothing
- 3 WhiteShark
