Customer is always King!. But all organizations need to determine what type of Kings they want to deal with, which will help them in achieving a sustainable and profitable growth.
In IT services sector, ideally you want to work with Customers who treat you as Transformation partner, to work in join partnership on solving their business requirements. This is in contrast to vendor partnership resulting in staff augmentation. But to get there takes a lot of effort to build the Brand, capability and delivery excellence etc. for customers to treat you that way.
Working with larger Fortune 500 Corporations means a more structured approach for contracts, services and payments. But they also typically tend to mitigate risks by having more than one vendor for their requirements. Working with small to medium size organizations, may lead to challenges on size of contract, payment issues etc, with upside of becoming a strategic partner when the customer organization grows. Working with customers mean investments in Customer Relationships, Proposals, Proof of concepts etc, which are justifiable only if the relationship grows. Its better to trim the tail (where returns are meagre compared to investments) and refocus on profitable customers.
Organizations need to decide on their customers based on the products and services they provide, their stage of growth, risk appetite and financial situation. Its better to turn down customers, when the requirement is not a skill the company has or wants to build, or there is insufficient capacity to meet the requirement, or requirements are not clear leading to potential scope creeps.
There is an Explicit and Implicit way of selecting the customers to do business with. Implicit is indirectly stated or implied, while Explicit is directly stated and spelled out.
In Explicit, companies usually spell out policies to meet to work with customers and vendors. There might be a minimum revenue size requirement, years of existence, credit worthiness, geographical location etc. This usually changes as the organization grows.
In Implicit, Companies can segment the customers they want to work with and design appropriate strategies so that customers self select. For example, a high end luxury brand Retailer, will have stores located in Premium locations or malls, offer limited but exquisite products and pricing is in the higher range. They offer excellent customer service (Nordstorm, Coach, Burberry etc). Similarly Retailers, like Walmart offering Every day low price, target the general population, offer a wider catalogue at affordable price range. There is a dynamic of margin vs volume play, and based on which companies design their investments. This is visible in many sectors Hotel (2 or 3 star vs 5 star), Mobiles (Apple vs Android), Cars (BMW vs Hyundai) etc.