Customer success in B2B: how to keep customers and increase their value to your company

In many service companies, sales signs the contract, the team delivers the work, and then nobody is responsible for the relationship. The customer either stays for years or, after a year, does not renew. The company finds out from the termination notice.

The reasons for leaving rarely come down to one big mistake. Most often, several of the following are at work at once:

Customer lifetime value (LTV) is the margin a customer brings in before they leave. The simplest way to calculate it is annual sales × margin × number of years of the relationship. It is an approximation, but good enough for decision-making.

Take a hypothetical service company whose customer buys PLN 120,000 a year at a 30% margin. If the customer stays for three years on average, they bring in PLN 108,000 of margin (120,000 × 30% × 3). If better care keeps them for four years, they bring in PLN 144,000, or PLN 36,000 more.

Research points in the same direction. Harvard Business Review, citing work by Frederick Reichheld of Bain & Company, states that increasing customer retention by 5% can raise profits by 25–95%. This finding relates to profits, not turnover, and comes from research in service industries. Treat it as an indication, not a forecast for your company.

Two indicators, calculated once a year and once a quarter for key customers, are enough. The first is the percentage of customers at the start of the year who are still buying at the end of it. The second is net revenue retention (NRR).

NRR shows whether your existing customers are paying you more or less than a year ago. Take the customers who brought in PLN 2,000,000 at the start of the year. Over the year, some expanded the relationship by PLN 400,000, others reduced their orders by PLN 100,000, and customers worth PLN 200,000 left.

NRR is therefore (2,000,000 + 400,000 − 100,000 − 200,000) / 2,000,000, or 105%. A result above 100% means the company grows even without new customers. A result below 100% means sales first has to replace the lost revenue before it can start building growth.

You do not need a separate department to start with. In a company with a few dozen active customers, care of key customers can be taken on as part of the role of the COO or an experienced project manager. What matters is that it is one named person.

When it comes to a full-time role, calculate the time instead of copying ratios from other companies. Assume, for example, that a key customer needs 6 hours a month: preparing for and holding the quarterly meeting, reviewing signals, phone calls. With 25 such customers, that is 150 hours, almost a full-time job.

Keep the division of roles with sales clear. The account manager makes sure the customer achieves what they paid for and picks up on new needs. The salesperson prepares the offer for expanding the relationship. When the roles get mixed up, the customer gets two different answers to the same question.

A customer health score is a simple status – green, amber or red – assigned to each key customer in the CRM. It is calculated from a few signals the company already has in its systems. A change to a worse colour means a task for the account manager.

Watch out for a common mistake: NPS is an indicator calculated for a group of customers, not a rating of a single company. For an individual customer, track their own answer on a 0–10 scale to the question of whether they would recommend your company. The thresholds in the table below are examples – adjust them to your industry.

The most effective customer care tool is a regular review meeting with the decision-maker at the customer, known as a QBR (quarterly business review). Meet key customers once a quarter, and others once every six months or once a year.

The meeting should include the decision-maker and the person who works with you day to day on the customer’s side, and the account manager and delivery manager on yours. An hour is usually enough if the agenda is prepared. A proven running order looks like this:

A customer usually signals a problem long before giving notice. However, the signals are scattered: sales sees falling orders, accounts sees late payments, and only the account manager notices the silence in the inbox. That is why it is worth bringing them together in one place, such as the CRM.

For each signal, decide in advance who responds and how quickly. Here are some example responses:

Ideally, wherever the team already works. A separate system only makes sense with a very large number of customers. You will find a comparison of typical options in the table below.

Whatever the tool, you need three things: a list of key customers with an assigned account manager, a health status for each of them and a calendar of quarterly meetings with reminders.

Systematic customer care makes no sense where customers buy once, for example in one-off construction projects. There, referrals and good service during delivery matter more. The same goes for many small customers – automated reminders and surveys are then enough instead of personal meetings.

If systematic care does make sense in your company, start with a small step you can sustain. The plan below does not require a new tool or new hires.