Addendum Communication was founded in 2019 to provide certified, high quality language services and professional support to companies who want to expand their business in French Canada, France, the Francophonie as well as in the USMCA Treaty Territory (US-CAN-MEX). Our language services include French (Canada), French, Spanish and English.

 We also provide voice-over, subtitling, and adaptation for a wide range of activities, including corporate videos, e-learning materials, and audio-books.

Our team is experienced, certified, and highly professional.

Addendum communication is your USMCA language service partner
in the USA and around the globe.

Choose a language solution services expert in Los Angeles who will accompany you in your global expansion.


Addendum Communication is specialized in French, English & Spanish, covering all the major languages spoken in Canada and Mexico to serve the needs of USMCA trading partners and international businesses.

Headquartered in the heart of Los Angeles, Addendum Communication’s highly experienced project management team is ready to get your project started 24/7, wherever in the world you’re based.

Rely on a recognized member of the American Translators Association (ATA)

and a company part of ProZ certified Pro network.

Addendum Communication is a corporate member of the American Translators Association (ATA) and abides by the ATA Code of Ethics and Professional Practice.