The short answer

Write each case study for one kind of buyer, around one problem. Agree the facts and the wording with the client before you start, keep the evidence for every number, and lay the page out so a skimming reader gets the client, the problem, the result and the period from the first screen. Then link it from every service page it proves.

What a case study page is for

Logos say who you have worked with. Testimonials say someone was pleased. A case study does a different job: it lets a buyer judge whether you can solve their problem, by showing the situation, the work and the outcome for a client they recognise as similar. For a lean B2B team it is often the most useful proof on the site, because it is the one a sales conversation can point to.

That also means a case study is read sceptically. In Nielsen Norman Group's 2019 research on About Us content, users still read testimonials but "remained leery as to whether the company had curated the reviews to show only the most favorable ones", and many checked third-party review sites as well1. The authors recommend "honest and balanced testimonials"1. The same applies to case studies: detail, context and admitted limits make them more believable, not less.

This guide covers the case study page itself. For where proof sits on other pages, see B2B landing page best practices and the proof section of B2B value proposition examples.

Before you write: agree it with the client

Most case studies stall at sign-off, not at writing. Settle these points with the client contact at the start, in writing:

Keep the evidence behind every claim: the data export, the email confirming the quote, the signed approval. In the UK, the CAP Code requires marketers to hold documentary evidence that a testimonial or endorsement is genuine, and contact details for the person or organisation that gives it (rule 3.47), and to hold evidence for objective claims before publishing them (rule 3.7)2. A results figure in a case study is likely to be read as an objective claim, so treat it as one.

The structure that works for most case studies

Order the page by the questions a buyer asks, and put a summary at the top for the many readers who will not read the rest.

SectionWhat it containsWhy it matters
HeadlineThe client (or client type), the outcome and the serviceA skimming buyer learns the relevance in one line
Summary boxClient, sector, size, region, service, period, headline resultLets the buyer check fit before reading on
The situationWhat was wrong or needed, in the client's words, and what it was costing themBuyers recognise their own problem
Why they chose youThe alternatives they considered, including doing nothingAnswers the buyer's own comparison question
What you didScope, approach, team, timeline and what the client had to doShows the work is real and repeatable
ResultsBefore and after, the period, how it was measured, what else changedMakes the outcome checkable
The quoteA named person, role and company, saying something specificA human voice the buyer can trust
Next stepA link to the service page and one call to actionTurns proof into a conversation

Write the headline around the result and the client type

A title like "Case study: Northfield Ltd" tells a newcomer nothing. A headline in the form "[What changed] for [type of client] with [service]" works on the page, in a list of case studies and in search results. Use the client's name in the headline only if buyers would recognise it; otherwise lead with the sector.

Put a summary box at the top

Many readers decide from the first screen whether a case study is relevant. A short block of facts (client, sector, employees or revenue band, region, service, project period and the main result) answers that quickly and makes the page easy to quote in a sales email.

Say what the client had to do

Buyers want to know the effort involved on their side: how many hours of their team's time, what access you needed, how long before anything changed. Many case studies leave this out, and it is one of the most useful things a buyer can learn from one.

Report results that hold up

The results section is where case studies most often lose credibility. A number without a baseline, a period or a method invites doubt, and a buyer who doubts one number will discount the whole page.

If you measured the outcome of a website change yourself, our guide to measuring the impact of a website change sets out the method, including when the honest answer is that you cannot tell.

Quotes from named people

Anonymous praise reads as invented. Use the person's full name, role and company where the client allows it, and a photo if they agree. Ask the client questions that produce specific answers, such as "What were you doing before?", "What made you choose us?" and "What would you tell a peer considering this?", then quote their words rather than polishing them into marketing copy. Send the final wording back for approval and keep that approval.

When the client cannot be named

Many B2B clients will not allow their name to be used. An anonymised case study can still work if it is precise:

Publish it as a web page, not a gated PDF

Case studies are often published as PDFs behind a form. That hides the proof from the people who need it and from search engines. Nielsen Norman Group's advice is direct: "Do not use PDFs to present digital content that could and should otherwise be a web page"3. The UK Government Digital Service gave its reasons for preferring HTML in 2018: PDFs are harder to find, use and maintain, do not adapt to phone screens, are often bad for accessibility and are harder to keep up to date4.

Make case studies easy to find

A case study nobody finds does no work. Most buyers will reach it from another page, not from the case study index.

A template to copy

Use this outline as the brief for each case study. Fill in every line, or decide on purpose to leave one out.

Headline:      [What changed] for [type of client] with [service]
Summary box:   Client | Sector | Size | Region | Service | Period | Main result
Situation:     What was wrong or needed, in the client's words (2 to 4 sentences)
Alternatives:  What they considered instead, including doing nothing
What we did:   Scope, approach, team, timeline
Client effort: Hours of their time, access needed, decisions they made
Results:       Before, after, period, how measured, what else changed
Quote:         Full name, role, company; approved wording on file
Next step:     Link to [service page]; one call to action
Evidence file: Data export, quote approval, publication approval, review date

The checklist

CheckPass if
PermissionWritten approval of the final text, names, logo and figures
EvidenceEvery number and quote has its evidence on file
HeadlineStates the result, the client type and the service
SummaryClient, sector, size, period and result visible in the first screen
ResultsBaseline, period, method and other changes stated
QuoteNamed person, role and company, saying something specific
FormatA readable web page; any PDF is optional, not gated
VideoCaptions and a text summary on the page
LinksLinked from each service page it proves, and the reverse
DateProject date shown; a review date set

Common mistakes

A case study is rarely the page where a buyer gets in touch, so judge it by whether service pages link to it and buyers move on from it. Our B2B CRO guide shows where it sits among the other pages buyers read.

Where Artiweave fits

Artiweave does not write results or quotes for you; those have to come from your client, as this guide describes. Where it helps is placement: from crawl, Search Console and performance evidence it can flag proof that is missing or hard to find, such as a service page with no link to a relevant case study, and propose a specific change for your team to approve, edit or reject.

Frequently asked questions

How long should a B2B case study be?

Long enough to show the situation, the work and a checkable result, and no longer. Most need a summary box and a few hundred words; a complex project may need more. Put the client, the problem, the result and the period in the first screen, so a reader who stops there still gets the point.

Should case studies be gated behind a form?

Usually not. A case study is proof, and gating it hides that proof from the buyers and search engines who need it. Publish the full case study as a web page and, if you want, offer a PDF copy as an extra.

Can I publish a case study without naming the client?

Yes, if the client asks for that. Describe them precisely (sector, size, region), say the case study is anonymised at their request, and keep the same evidence on file as for a named one.

How many case studies does a B2B website need?

There is no fixed number. Aim for at least one relevant case study for each main service or each main sector you sell to, so every service page can link to proof that matches its buyers.

Sources

All sources accessed 3 November 2026.

  1. Nielsen Norman Group: 'About Us' Information on Websites (Anna Kaley and Jakob Nielsen, May 2019)
  2. Advertising Standards Authority: The CAP Code, section 3, Misleading advertising (rules 3.7 and 3.47)
  3. Nielsen Norman Group: PDF: Still Unfit for Human Consumption, 20 Years Later (Jakob Nielsen and Anna Kaley, August 2020)
  4. Government Digital Service blog: Why GOV.UK content should be published in HTML and not PDF (Neil Williams, 16 July 2018)
  5. W3C: Web Content Accessibility Guidelines (WCAG) 2.2, success criterion 1.2.2 Captions (Prerecorded)

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