Key takeaways
- A case study is evidence, so every result needs a baseline, a date range and a denominator.
- Say what else changed during the period; readers trust stated limits more than clean stories.
- Get written client permission for the name, the numbers and any quotes before drafting in public.
- Endorsement rules apply: disclose material connections and do not present atypical results as typical.
01
What should a B2B case study include?
A credible B2B case study covers the client’s context, the problem in their words, the constraints the work had to respect, what was actually done, the results with baselines and dates, what else might explain those results, and what the client would do differently. That structure lets a sceptical buyer judge whether the outcome could transfer to their own situation.
Most case studies skip the last three items. They are the ones that make the rest believable.
| Section | What to write | Evidence needed |
|---|---|---|
| Context | Industry, size, starting situation | Client approval of the description |
| Problem | The issue in the client’s words | Interview notes or quote approval |
| Constraints | Budget, timeline, systems, team | Scope documents |
| Work done | What changed and in what order | Project records |
| Results | Metric, baseline, period, denominator | Exported reports with dates |
| Limits | Other changes, seasonality, gaps | Honest review with the client |
02
How should results be reported?
Give every number its frame: “qualified meetings rose from 14 to 31 per month, comparing March–May with September–November” says far more than “a 121 percent increase”. Show the denominator for rates and say which system produced the figure.
Do not round up, cherry-pick the best month, or combine metrics from different periods. If a result is modest or mixed, publish it as such; buyers who have run projects themselves recognise a real one.
03
What permissions and rules apply?
Get written permission for the client’s name, logo, the specific numbers and every quote, and agree how long the case study may stay live. Some clients will approve an anonymised version only; that is still useful if the context is specific enough to be credible.
In the United States, the FTC’s Endorsement Guides apply to testimonials in marketing: material connections such as discounts or free work should be disclosed, and results that are not typical should not be presented as if they were. Its rule on consumer reviews and testimonials also bars fabricated or misattributed testimonials.
04
How do you get the most value from a case study?
Publish it as a page with its own URL and a descriptive title that names the problem, so it can be found by buyers with the same issue. Link to it from the relevant service page and give sellers a one-page version for proposals.
Review it annually with the client. Results drift, people move on, and a case study built on an out-of-date setup can mislead as much as an invented one.
- Its own URL with a problem-led title
- Linked from the matching service page
- One-page sales version
- Annual review and re-approval
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Primary sources and further reading
Use the source material to validate details against your own context and current platform configuration.
- FTC: Endorsement Guides — what people are asking
- FTC: Trade Regulation Rule on the Use of Consumer Reviews and Testimonials (16 CFR Part 465)
- Google Search Central: Creating helpful, reliable, people-first content
This field note follows the XenGrowth editorial policy: primary sources where available, visible limitations, material review dates, and no invented first-hand experience.
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