Case studies are among the most persuasive things a service business can publish, and also among the most neglected. Many end up as dry project summaries or vague success stories that could describe any supplier. A case study that sells reads like a story the buyer recognises: a company like theirs, a problem like theirs, and a believable path to a better place.
Know who the case study is for
Before writing, decide which type of prospect should read it. A case study about automating a logistics company's dispatch is ideal for operations managers in similar businesses, and less useful to a retail marketing team. Choosing a target reader shapes which details you include and which you can leave out.
Build a small library over time that covers your main services, industries and client sizes, so sales always has a relevant example to send.
Get permission early and properly
Agree with the client, ideally in writing, what you can publish: their name, logo, quotes, screenshots and any figures. Some clients will only agree to an anonymised version, which can still be valuable if the details are specific. Never publish confidential information or invent outcomes to fill gaps.
Interview the client, not just your team
Your project team knows what was built. The client knows why it mattered. A short call with the client provides the human voice and the business context. Useful questions include:
- What was happening in your business before you started looking for help?
- What had you already tried, and why did it fall short?
- What worried you about starting this project?
- What surprised you during the process?
- What is different in your day-to-day work now?
- What would you tell someone in your position considering a similar project?
Record the call with permission so you can quote accurately.
Use a simple story structure
The client and their situation
Who they are, in a sentence or two, and what was going wrong. Be concrete: manual spreadsheets causing missed orders is clearer than "operational inefficiencies".
The challenge in detail
Explain the constraints: tight timelines, old systems, limited staff, regulatory requirements. This is where readers recognise themselves.
The approach
Describe what you did and why, including decisions and trade-offs. Mention how you worked together, not just the technology. Readers want to know what the experience of working with you is like.
The outcome
Describe the results the client actually experienced. Use real figures only if the client provided and approved them. If you do not have numbers, describe observable changes: fewer manual steps, faster responses to customers, a smoother approval process. Specific qualitative outcomes are credible; inflated statistics are not.
In their words
Include one or two direct quotes from the client that capture the human impact.
Make it easy to scan
Busy readers skim first. Add a short summary box at the top covering client type, challenge, solution and outcome. Use headings, short paragraphs and visuals such as screenshots, photos or a simple diagram of the process. Our design team often turns these into graphics that work on both the website and in proposals.
Put it where buyers will see it
Publish case studies on your website, link them from relevant service pages, and feature them in your portfolio. Send them in follow-up emails after sales calls and attach them to proposals. A case study read at the right moment in a buying process can tip the decision.
FAQ
How long should a case study be?
Long enough to tell the story with specifics. A focused page that a reader can finish in a few minutes is usually ideal, with a summary for skimmers.
What if the client will not let us use their name?
Write an anonymised version describing the industry, size and challenge. Keep details specific and honest so it still feels real.
Can we write about a project that did not go perfectly?
Yes, carefully. Showing how you handled a setback can build trust, as long as the client agrees and the story is fair to everyone involved.
Next step
Export Apps can help you plan, write and design case studies that support your sales process. Get in touch to talk about the projects you would like to showcase.