How do you decide which customer to turn into a case study?
Most companies default to whoever’s biggest, or whoever said yes first. Both are useful, of course. A famous name gets attention, and a willing client saves you weeks of chasing. But neither guarantees a case study that persuades the next buyer.
There are three things worth weighing up instead.
1. Best challenge
Choose the customer whose problem was real and specific, and who came out the other side.
“They improved efficiency” persuades nobody. “They caught a 20% overrun everyone else had missed” makes a reader lean in. Then you explain how. The sharper the problem, the more the solution is worth reading.
In construction, the best challenges are often the ones the team grumbles about: the site with no laydown space, the programme that halved, the steel that arrived late, the client who changed the brief in week ten. Those are your stories. Pick the customer with a story, not just a result.
2. Most relatable
This isn’t your flashiest client. It’s your most representative one.
A cautious buyer reads a case study asking one question: would this work for a company like mine? A customer who looks like your next prospect, with the same size, the same kind of project and the same pressures, answers that better than any marquee logo.
If most of your work is mid-sized refurbishments for housing associations, a case study about one of those will do more than your one landmark tower. Relatable beats shiny.
3. Most willing
This is the customer who will give you half an hour, talk freely and put their name to it.
They have to say yes, obviously. But willingness is about more than permission. A client who is genuinely happy to talk gives you the detail and the quote that make a case study believable. A reluctant one gives you a sentence of approval and a request to remove their name.
A perfect project you can’t put on your website is worthless. A good story from a customer who’s glad to talk is worth a lot.
When you have to trade
If one customer ticks all three boxes, you’ve pretty much got your next case study. Usually you can’t have everything, so you have to trade.
When I do, I drop “best challenge” before “most willing” every time. A genuinely willing customer is the rarest of the three, and the whole story dies without one. A modest challenge, told well by a client who’s happy to talk, still works. A dramatic challenge with no client voice rarely does.
A simple scoring method
If you have several candidates, score each one from 1 to 3 on each test:
- Challenge: how specific and interesting was the problem?
- Relatability: how closely does this client resemble the buyers you want?
- Willingness: how likely are they to talk freely and be named?
Give willingness double weight. Start with the highest score, and keep a list of the rest for later.
Choosing the customer is step one. For the interview questions, structure and how to use the finished case study, see How to Write Construction Case Studies That Win Work.
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Michael Willoughby