What is key account management?
Key account management (often shortened to KAM) is how a business looks after the few clients that matter most. Those are usually the largest by revenue, but also the ones with the most growth potential, the most strategic value or the work that best represents the company. Each key account gets a senior owner, a plan, regular reviews and a deeper relationship than a standard client: more people on both sides know each other, and the agency understands the client's business, not just the current brief.
In agencies the role often belongs to a client services director or a group account director. In small agencies it belongs to the founder, who is usually the person the client called in the first place.
Why it matters
Why key account management matters
For most agencies a small number of clients account for a large share of revenue, which makes them both the foundation of the business and its biggest risk. Losing one can mean losing people. Key account management is the discipline that keeps that from happening by surprise, because someone senior is always watching the relationship and not just the next deliverable.
It is also where the best work tends to come from. A client that trusts its agency briefs it earlier, shares more of the real problem and takes bigger creative risks, and the agency, knowing the brand deeply, can tell which risks are worth taking.
In practice
How key account management works in practice
- 01
Each key account has an account plan: the client's objectives for the year, the work coming up, the people involved, the risks and the opportunities to do more. The account lead meets the client beyond project meetings, usually in quarterly reviews with senior people on both sides, and keeps track of changes in the client's team, strategy and market before they show up in a brief.
- 02
Inside the agency, key accounts get continuity. The same creative and production people stay on the account, so knowledge of the brand accumulates instead of resetting with every project. When the client's marketing team changes, which it does often, the agency is the one carrying the memory of what worked, what did not and why.
At RIOT
Key account management at RIOT
Our longest relationships are built that way. We have worked with Coach for more than a decade, across campaigns, sizzle reels, Coachtopia, holiday films, the Lew Frankfort "Bag Man" documentary and the Cannes Lions 2026 recap film. With Tiffany & Co. the work has run from holiday window films to The Medusa film and "Where Light Meets Rebellion"; with the Washington Commanders, from the 2022 rebrand film to season trailers and the Cannes case study film. The founder, who is still in the pitch, on set and in the edit, carries those relationships himself.
Watch out
What people get wrong about key account management
Confusing it with servicing. Answering requests quickly is the minimum; key account management means understanding the client's business well enough to bring ideas before anyone asks for them. The second mistake is relying on one relationship: if the agency's link to an account is a single person on each side, one job change ends it. The third is letting the account get comfortable. Long relationships stay alive by staying ambitious.
