What does customer concentration mean?
Customer concentration is how much of a company's revenue comes from its few biggest customers. It is usually shown as the share from the top 1, top 5 or top 10 customers.
A soap maker sells to millions of shoppers through shops, so no single buyer matters much. A parts maker may sell most of its output to a handful of carmakers.
What must Indian accounts disclose?
If one outside customer brings in 10% or more of revenue, the company must say so. It must give the amount and the segment that earns it.[S1]
It does not have to name the customer.[S1] So a filing may mention "one customer" without naming it.
What does the number tell you?
It shows how much revenue depends on a few relationships. If one large customer cuts orders, a concentrated company feels it more.
It can also reflect long contracts with large clients, common in IT services and engineering. The number describes the business model; it is not a verdict on it.
Where do you see it on Cityfort?
Stock pages show it in "Who pays it" when the company reports it, with the period and the source. The examples below list what each company reports, in A–Z order.