Key Account Management: 5 Strategies to Grow Clients

Key Account Management is one of those business ideas that sounds simple in theory but feels very different in practice. At its heart, it’s about how you treat your most important clients—the ones who keep the lights on, influence others to work with you, and often stick with you for years when you do things right. Companies that get Key Account Management (or KAM for short) right don’t just “keep” customers. They grow alongside them.

Let’s break down what KAM actually means, why it matters, and five practical strategies you can apply. Along the way, I’ll share a real case study from the food industry and tackle the most common questions people ask about this topic.

What exactly is Key Account Management?

Key Account Management isn’t just another sales approach. It’s a way of working with the clients who really matter—the ones with long-term potential, not just today’s revenue.

Think of it like this: a normal sales approach answers the question, “How can I close this deal?” whereas a Key Account approach asks, “How do we create real value for this client over the next three to five years?”

That shift changes everything. Suddenly, you’re not merely sending quotes—you’re sitting at the table as an advisor, problem-solver, and sometimes even a sounding board when the client is facing internal pressure.

Why does Key Account Management matter in the first place?

Because let’s be honest: customers leave. Even if you’ve done a great job for years, one competitor with a cheaper price or fresher idea can lure them away. Loyalty isn’t what it used to be.

KAM gives you insurance against that risk. By investing in your top accounts, you:

• Strengthen loyalty and retention.

• Unlock extra revenue without spending huge budgets on customer acquisition.

• Reduce the chances that competitors can undercut you.

• Build reputational weight (“If they trust you, maybe we should too”).

Here’s the kicker—research consistently shows it costs up to seven times more to win a new account than to grow an existing one. That’s why KAM isn’t a luxury. It’s a must-have in competitive industries.

5 strategies to grow clients with Key Account Management

1. Choose your key accounts carefully

Not every large client is a real “key.” Segment first. A client might look huge on paper, but if they drain resources, always fight on price, and don’t see you as a partner, they’re not the right fit.

Better criteria include:

• Do they have future growth potential?

• Will they collaborate or just demand?

• Are they profitable (not just big)?

• Do they align with your culture and way of working?

2. Build forward-looking roadmaps together

How do you stop being “just another supplier”? Show your client where they’re heading before they ask. A roadmap built around their 3–5 year goals creates that shift. It’s not about you selling more—it’s about helping them achieve what matters most to their business.

Think about questions like:

• What market shifts could impact them next year?

• Where are they trying to innovate?

• How can you position yourself to support that?

If you want to see how this translates in fast-changing environments, this guide on remote selling has helpful insights.

3. Invest in wider relationships

Here’s a golden rule: if you only know the procurement manager, your account is at risk. What happens when they leave?

Key accounts almost always involve multiple stakeholders: execs, marketing, finance, operations. Take time to build trust across layers. Talk strategy with leadership, details with operations, and ROI with finance. The more connected you are, the harder it is for competitors to step in.

4. Add value beyond the purchase

This is where most businesses either shine or fade. Once the product is delivered, the real difference is whether you show up with extra value. Share industry data, consumer insights, or even run innovation workshops together.

Think of your role not as “selling” but as making them more successful at what they do. When they win, you win.

5. Track the right metrics

Of course, growth in revenue matters. But for long-term success, track more than just numbers. Useful metrics include:

• Relationship breadth (how many stakeholders you’re connected to).

• Satisfaction and health scores.

• Joint projects or co-created success stories.

• Repeat purchase rates and lifetime value.

Those are the signals that show whether your KAM strategy is truly working.

Case Study: How a food supplier turned around their biggest account

Take the example of a mid-sized dairy producer in Southern Europe. Their two top retail clients represented nearly 45% of annual revenue—but margins were being squeezed every year. Procurement pushed for constant price reductions, and the relationship felt like a one-way street.

Instead of continuing the cycle, the company decided to overhaul its Key Account Management approach.

• Resegmentation: They identified which client had the best long-term potential. One large supermarket chain stood out because they were open to supplier collaboration.

• Joint roadmap: They sat down with the retailer’s category managers and developed a three-year plan. It included testing plant-based dairy alternatives, responding faster to changing consumer trends, and co-launching campaigns.

• Stakeholder mapping: Instead of only talking to procurement, the supplier engaged with marketing and product innovation teams. This broadened their influence.

• Added value: They invested in shopper research and brought insights that the retailer wasn’t gathering internally.

• Measurement: They reviewed not just revenue, but repeat sales, shelf visibility, and campaign impact.

The result? Within two years, the account grew 27%, and the retailer renewed a long-term contract with better margins. Competitors found it much harder to break in because the relationship had turned into a true partnership—not just transactions.

FAQs about Key Account Management

What skills make a strong Key Account Manager?

A mix of strategy, empathy, and resilience. They need to see big-picture trends, but also listen carefully to unspoken frustrations. They’re comfortable switching gears—one day speaking in ROI terms to a CFO, the next day brainstorming with a marketing team.

How do you put together a Key Account Plan?

Start with context (their market situation), map the key decision-makers, identify risks, outline opportunities, and then set yearly measurable goals. The twist? The best plans are co-created with the client—not handed to them.

How is Key Account Management different from Customer Success?

Customer Success focuses on satisfaction and adoption after a purchase. KAM is about strategic growth. Think of it as the difference between making sure someone’s meal tastes good versus partnering on the entire menu for the next five years. Both matter, but they serve different purposes.

What’s next for Key Account Management?

Technology is reshaping the way we work with key accounts. CRMs backed by AI can now highlight risks or upsell opportunities before they happen. But here’s the reality: no tool can replace the human side of trust, as I mentioned recently in another blog post.

Clients remember when you solved their headaches and helped them look good internally—not how quickly your dashboard loaded. That’s the line between a supplier and a true partner.

Final thoughts

Key Account Management isn’t about chasing big contracts—it’s about building partnerships that stand the test of time. The companies that thrive are the ones that treat their key clients as long-term collaborators, not short-term deals.

Segment wisely. Build roadmaps. Expand your network within each account. Add value beyond the sale. Track what matters.

Do those five things, and clients won’t just stay—they’ll grow with you.