>In tech a customer with an annual contact value of tens to hundreds of millions of dollars will get a dedicated team of sales reps

In many Indian outsourcing firms, they permanently place a 'program manager' at big client's offices. Like for eg- Bank of America.

These managers also get a unlimited American express card, to spend on lunches, outings etc. You are expected to build 'relationships' so that when a project is needed to be won, you are just a call away from making it happen.

This is because a good percentage of the sales, projects, staffing, profits come from these big clients.