- 8 Akurat
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- 4 Alfred Publishing Co (UK) Ltd
- 4 ALHAMBRA LONGMAN,S.A.
- 21 Apple
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- 4 Bob Hastings, Regina Raczyńska
- 12 Books, Foxton; Webley, Jan
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- 140 Cambridge University Press
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- 5 Carolyn Barraclough
- 8 CGP Books
- 15 Coordination Group Publications Ltd (CGP)
- 6 Cotton, David
- 37 Createspace Independent Publishing Platform
- 30 Czwarta Strona
- 4 David Glover
- 6 DIM - Nauka i Multimedia
- 4 DISNEY HYPERION
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- 4 Eales, Frances
- 5 Express
- 37 Express Publishing
- 6 Faber Piano Adventures
- 13 Filia
- 8 FNCE
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- 11 Hachette Children's Book
- 5 Hal Leonard
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- 20 HarperCollins Publishers
- 4 Harper Collins Publishers
- 7 HarperCollins Publishers Inc
- 4 Heinle
- 52 HP
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- 6 Impuls
- 27 Independently Published
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- 17 Jaguar
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- 5 Jolly Learning Ltd
- 10 Kay, Sue
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- 235 Little, Brown Book Group
- 18 LONGMAN
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- 31 Macmillan
- 20 Macmillan Education
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- 55 MM Publications
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- 90 Pearson
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- 27 Pearson Education
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- 11 Wolters Kluwer Polska SA
- 7 Wydawnictwo e-bookowo
- 18 Wydawnictwo Kobiece
- 15 Wydawnictwo Naukowe PWN
- 5 Wydawnictwo Naukowe Uniwersytetu Mikołaja Kopernika
- 14 WYMOWNIA
- 5 Young
