How to Write Case Studies That Win Tenders

1. Choose relevance over impressiveness

Evaluators reward case studies that match the requirement in front of them: same type of work, comparable scale, similar constraints, ideally a similar buyer. A modest project that mirrors the contract beats a flagship project that does not. Read what the buyer is asking for, then choose the closest match, not the biggest name.

2. Use the STAR structure

• Situation - the client, the context, and why the work mattered
• Task - the specific challenge or objective you were set
• Action - what you did, with the detail that shows competence
• Result - the quantified outcome, tied back to the objective

3. Quantify the result

A case study without numbers is an assertion. Give the measurable outcome: time saved, cost reduced, quality or satisfaction improved, incidents avoided, targets exceeded. If you cannot quantify it, get a client quote or a reference that does. Numbers are what move a case study from believable to compelling.

4. Connect it to the buyer

Do not leave the reader to join the dots. End each case study with an explicit sentence that connects it to the buyer requirement: because we delivered this outcome there, we will deliver this benefit for you here. This is the line that converts evidence into a scored point.

5. Build a reusable case study bank

Maintain a bank of case studies written in STAR form with quantified results, each tagged by sector, service, scale and outcome. When a tender lands, you select and tailor rather than starting from a blank page. This single habit shortens bid timelines and raises quality on every submission.

6. Case study mistakes that waste your best proof

• Choosing the most impressive project instead of the most relevant
• Describing activity with no measurable result
• No named client or reference to make it credible
• Leaving the buyer to work out why it is relevant
• Reusing the same case study everywhere without tailoring it