Marketing agency case study template a client can check

Why most case studies do not persuade

A case study with a big number and no client, date or source reads like marketing, and AI can now write one in seconds. A client believes a case study when they can check it: who it was for, when, what you did, where the number came from, and who will confirm it.

The template

One page per project. Change the words in brackets.

Client: [name, or “a D2C skincare brand in India” if you cannot name them]
When: [start month] to [end month]
The problem: [one sentence, in the client’s words]
What we did: [three bullets: channels, budget range, what changed]
The result: [the number], over [the period], from [the source: ad platform, shop, CRM]
Who did the work: [names and roles]
Who will confirm it: [name and role, with their permission]
Check us: [your Found page link]

Rules that keep it believable

• Every number has a period and a source.
• Say what did not work, and what you changed.
• Name the people who did the work, not only the founders.
• Only quote a client who said it, in words they agreed to. In August 2024 the US Federal Trade Commission adopted a rule banning fake testimonials. A summary, not legal advice.

Let the client say it too

The strongest line in any case study is the client's own. Invite them to review your work on Few Found: they confirm you worked together, and a person at Few Found reads every review before it appears. A Found page is free, and a person at Few Found checks it is real before it goes live.

Sources

Every rule above was read against these on 9 Nov 2026. Rules change: check the source before you rely on it.

1. US Federal Trade Commission, Federal Trade Commission Announces Final Rule Banning Fake Reviews and Testimonials, 14 August 2024.