Charles Marcus Sarl is the international employer of all Charles Marcus (CM) Partners. As the international employer, Charles Marcus Sarl works with clients through local CM consultancy firms on assignments outside Switzerland. Partners are seconded to a local CM employer on terms agreed with them for each assignment. Their earnings from the assignment are subject to tax in the country where the work is done. They do not have any Swiss tax liability. They do have the global support of Charles Marcus International AG.

Charles Marcus clients are from many countries worldwide. Clients engage in a contract with a CM consultancy firm in the network for the provision of consultancy services by a nominated representative. Charles Marcus Sarl does not provide services direct to clients.