It was founded at a conference in January 1975 where it was established as a centralised organisation with sections in France, Britain, Spain, United States, Italy, and Venezuela.

[1] It would go on to establish sections in Belgium, Germany, Netherlands, Sweden, India, Turkey, Philippines, Brazil, Peru, Ecuador and Mexico.

In the years that followed, contact was also opened up with Onorato Damen of the Internationalist Communist Party in Italy, and with Cajo Brendel of Daad en Gedachte in the Netherlands.

[9] Over the years, it has published a number of books and texts including: The ICC's conception of practical activity within the day-to-day struggles of the working class was set out in a "Reply to our critics".

It publishes regular agitational articles (in its printed press and/or on its web site), in the following languages: English, French, Spanish, German, Italian, Dutch, Turkish, Tagalog, and Portuguese.