Standards are appreciated by consulting companies. They allow them to benchmark, to evaluate against a standard, etc. This explains the success of ISO standards.
The consulting world also has its own ISO standard: it aims to regulate relations between consulting companies and their clients, and to prevent them from being involved in uncontrolled projects with unsuitable consultants.
The ISO standard therefore aims to establish a clear framework for assignments (well-defined scope, planned steering bodies, transparent and constantly updated budget, etc.)
At FacOrg, we respect the ISO 20700 standard as much as possible in order to build relationships of trust and transparency with our clients.