Get company data by maincontact ID

[DomenicoToma]

I have a Shopify Plus store and I need to retrieve the company by its main contact specified by the customer ID.

I tried this query but I keep receiving the list of all companies:

$query = <<<GRAPHQL

{

companies(query:"mainContact.customer.id:XXXXXX", first:12) {

edges {

node {

id

name

}

}

}

}

GRAPHQL;

What is the correct way to query?

Thanks everybody!