Arheve.orghttps://arheve.org

A non-commercial project — a digital library for any device. Tens of thousands of books in various languages are available for free in the Arheve app.
Also, work is underway on a minimalist self-publishing and reading platform built on TXT as a universal format.

Sky Horse Publishing Househttps://skyhorse.ua

Since the 2000s, Sky Horse has released over 500 media products, including print and e-books, multimedia encyclopedias, casual games, mobile apps, websites, and audiobooks. Clients have included Microsoft and Hewlett-Packard. Today, the publishing house specializes in travel literature.

Bookwagenhttps://bookwagen.com

Free educational e-books for children and parents, such as Learn to Count, Alphabet, Visual English Dictionary, Road Signs, Colors, Shapes, and more. The project helps children acquire basic knowledge in an accessible format.
The books are available in PDF, and a proprietary multimedia format is under development.

Innovation in Isolationhttps://innovation-in-isolation.com

A book on the history of cybernetics in Ukraine since the 1940s, written by Vladimir Nevzorov and Victoria Ugryumova commissioned by MacPaw, a well-known developer of utilities for macOS.