Knowing how to write a quality case study is a crucial skill every B2B marketing team needs to nail, especially now that buyers are drowning in lookalike content.
After all, AI can spin up a “case study” in seconds—but sameness and thin claims have trained readers to skim and skip. What still cuts through? Human proof: named customers, transparent numbers, and a clear story arc.
In our 2024 Customer Story Trends & Insights Report, which surveyed 115 SaaS marketers, case studies ranked as the #1 marketing tactic for driving sales—beating website copy, SEO, blog posts, and social media. The catch: only credible, well-told studies perform.
Case studies are an important part of any content strategy because they help you share your customers’ success with your prospects, and as a result, demonstrate the value of your service.
When thinking about how to write a case study, think of it like writing a story, not a report. Although it does need to be factual and should include numbers, it also needs a compelling narrative and lots of quotes. This guide shows you how to assemble that proof—step by step—so your next case study stands out in an AI-crowded feed and actually moves prospects through your marketing funnel.
Quick Tip: Check out your competitors’ case studies to see what works and what doesn’t. We’ve also got a blog post with case study examples, featuring our critique of what each one does well and what they can improve.
Learn how to write a case study in 8 steps
Follow these 8 steps to learn how to write a compelling case study that engages readers, leaves them informed, and gets them interested in hearing more from you:
- Identify real customers who want to share their story
- Ask the right questions during your customer interview
- Write a compelling customer story
- Design your case study
- Get approval from your customer
- Distribute and promote your case study
- Repurpose your case study
- Measure the performance of your case study
1. Identify real customers who want to share their story
It may be obvious, but featuring real customers in your case study is absolutely essential. Even better, choose ones that are excited to share their story.
In today’s content landscape (hello AI!), you might not be surprised by the number of businesses that publish fake case studies. But fake case studies are nothing new—reports of these have existed well before ChatGPT, although with the rise of generative AI, they’re probably much more common now.
Given this, buyers are overwhelmed by and skeptical of lookalike AI content.
Make your case studies matter by actually choosing real customers—specifically, those who are enthusiastic about your product and eager to share their positive experience.
Why? You’ll come up against way less friction working with your happiest and most satisfied customer compared to one that’s only lukewarm about being featured. Remember that participating in a case study requires time and commitment on the part of your customer. It’s a favor to you, after all.
With a little planning and the right tactics, you’ll be able to secure your customer’s cooperation and smooth the way to creating a killer case study.
Quick Tip: Check out these 6 steps for how to pick customers for case studies and get them to say “yes.”
Once the customer agrees to participate, you should complete a case study brief. This document will provide clarity on messaging and the focus of the story and help you determine how to write the case study.
2. Ask the right questions during your customer interview
What case study questions do you ask in the customer interview to ensure you elicit the details AND emotion you need for an authentic and compelling story?
Gathering the insights, data and customer quotes that make a case study resonate takes some finesse. This is why it’s so important to develop a set of relevant case study questions for interviews with customers.
Here are a few questions to help ensure a smooth and successful case study interview:
- Can you briefly tell me about yourself and your role?
- What was going on at your company that sent you looking for a solution like [company name]?
- Before you landed on [our solution], how did you try to solve the problem?
- What were your biggest challenges to solving the problem?
- Why did you choose [our solution] over competitors and the option of doing nothing?
Quick Tip: Find more questions in our post about the 26 interview questions you should ask.
And if you’re recording the interview for a video, find out the process Jeanne Nitchke follows to create successful case study videos.
3. Write a compelling customer story
A B2B case study is a tool you can use throughout your marketing mix. It’s an extension of your brand and should be written in your brand’s voice. And it’s a chance to position your company as a trusted leader and a clear choice for your prospects’ business.
Follow these 7 steps to learn how to write a case study that keeps readers engaged, leaves them informed and gets them interested in hearing more from you:
A. Include 8 important case study components
B. Hook readers with your title
C. Keep your executive summary short
D. Focus on your customer, not your company
E. Use quotes to add Voice of the Customer
F. Include metrics
G. Guide your reader with a call to action
A. Include 8 important case study components
The most effective case studies are made up of eight elements:
- Compelling executive summary: Every case study needs a story arc that captures the reader’s attention. To master how to write a case study, be sure to begin with a compelling executive summary that illustrates how your reader will benefit from what they’re about to learn.
- Clear view of your customer’s challenges: Next, the piece should outline the challenges your customer faced that led them to seek out your B2B SaaS solution (and dive into that process).
- Steps your customer took to try to solve the problem: Show how the customer’s pain point affected them and the alternatives they considered before settling on your company. This builds credibility and frames your solution as the informed choice.
- How the customer discovered your solution: This gives readers a believable discovery path and can make the customer feel more relatable (rather than a fake one made up for the case study).
- How your solution helped the customer meet their goals: Give specific details that tie your solution’s features to the customers’ desired outcomes. Be sure to use the customer’s language and measurement method.
- What the implementation of your solution looked like: Including this info helps to demystify rollout, transforming your product from an abstract solution to a real one. This can reduce the reader’s perceived risk of choosing your solution.
- Results your customer achieved: Wrap up your case study with a results section that shows off hard numbers—the boastworthy metrics that show your solution isn’t all talk.
- Call to action: Finally, close with a call to action to guide your reader where you want them to go next.
In your case study’s story arc, remember that the customer is the hero of the story—but your solution is how they were able to level up their business.
Quick Tip: See examples for each of the case study components you absolutely need to include.
B. Hook readers with your title
Keep these three elements in mind when learning how to write a case study headline:
- Your customer’s company name: This helps show readers that your case study is a real-life example of how your service helped someone.
- The product or service your customer used: This gives readers an idea of whether the case study is relevant to them.
Results your customer got from working with you: Finally, if you have one, highlight a statistic that references the results your customer got from working with you.
Quick Tip: Get inspiration for compelling case study titles from leading SaaS companies.
C. Keep your executive summary short
The executive summary of your B2B SaaS case study should be short (a few sentences) but impactful, and should provide a clear understanding of your service.
First, introduce your customers and the challenges they were facing when they hired you. Next, explain what your company did to help.
To finish strong—don’t skip this crucial step—outline a few results backed up with statistics that reinforce your main message.
Quick Tip: Check out 4 examples of executive summaries in SaaS case studies.
D. Focus on your customer, not your company
Readers don’t want to hear about how great you are. When learning how to write a case study, remember that it will only be compelling if you make the customer the hero of your case study—not your own company. Here’s how:
1. Introduce your customer champion right away
Showcase the individual you interviewed throughout the story, but be sure to introduce them at the beginning. Your readers will relate to a person, not a faceless entity.
Also provide background information on the customer’s company. This should be relevant information that helps set the story up for success. It could include what industry your customer is in, what size the company is and what it excels at.
2. Let your customer do the talking
When learning how to write a case study, keep in mind that direct quotes should make up a good portion of the case study if you want to make the customer the hero of your case study. Use your words to clarify or connect quotes and move the story forward.
Let your customer champion explain the challenge they faced, how they decided to use your services and how your solution helped them achieve results.
3. This isn’t about you
Don’t paint yourself as the knight in shining armor who rescued a company in distress. Your customer knew they had a problem to solve and proactively ewent searching for a solution. The customer did the research and realized that your solution would help smooth out that bump in their road.
4. Talk strategy
It is important to explain why the customer chose your solution, and how they implemented it and rolled it out. Let readers see the thought process involved.
5. Cut right to the heart of the issue
Skip any vague and superfluous praise. Go easy on the marketing lingo. What changed for your customer? What did it mean to their business? Include case study metrics where possible or detailed descriptions if you don’t have metrics. (This is where you get to brag a little bit about how your service made a difference and why.)
Examples of how to write a case study by making your customer the hero
Remember that the person you interviewed is the face (and heart) of your case study. Be sure they resonate as a real person, like Jamin:
Source: Gong
This is an excellent example of introducing not only the customer, but a specific individual within the company. Jamin is a dad of two and wants to spend as much time with them as possible. And he wants to help his teams get better – great hero material!
Sometimes the organization itself can be the hero, like the Australian Red Cross:
Source: Okta
This paragraph in the executive summary nicely positions the Australian Red Cross as the focal point of the story.
Sometimes, stepping aside is the best way to inspire trust in what you do. To truly make the customer the hero of your case study, let them do the talking—they may be the best salespeople you have.
Get more inspiration for your case studies by checking out our critique of 3 case study samples from GitLab, Sendoso and Front.
E. Include customer quotes for authenticity
There’s a time to paraphrase when you’re writing, but nothing validates your claims like the unfiltered voice of your customer. Customer quotes are the simplest and most effective way to infuse your case study with authenticity and build immediate trust.
Including direct customer quotes can help address reader skepticism and answer “Did this solution really work for someone else?”
Follow these two guidelines to make your customer quotes more impactful:
- Visually feature these testimonials as pull quotes within your design. Always include the customer’s full name, title, company, and a professional headshot to make the story personal and trustworthy.
- Select quotes that are specific and detailed, focusing on the “why” and “how” of your customer’s success. General praise (“It’s great!”) is less effective than detailed feedback (“It cut our processing time by 40%”).
Quick Tip: Get tips on how to choose customer quotes and testimonials for your case study.
F. Include metrics
Metrics are a surefire way to measure success in a B2B SaaS case study. Hard numbers are objective, reliable and convincing.
However, you may not always have metrics to tell your customer’s story, whether because of the client’s personal preference to avoid sharing data or some other reason. That’s OK—you can still create a compelling case study.
A few tips:
- Lead with your best quote. Social proof can be just as powerful as numbers in B2B. Have your customers explain what your service has meant to their business.
- Describe a clear before and after the experience—for example, time or money saved.
- List a few benefits (infographics come in handy here).
Quick Tip: Check out an example from a case study with no metrics.
G. Guide your reader with a call to action
Your reader has stuck with you until the end of your case study. Don’t leave them hanging—guide them where you want them to go next with a call to action. This should be a specific statement that speaks directly to your target audience.
Use design to make your call to action stand out. It should be obvious and clear what you want your reader to do.
Quick Tip: You can have more than one call to action in your B2B SaaS case study, and you can intersperse them throughout. For inspiration, check out these 8 case study CTA examples from other B2B SaaS companies.
4. Design your case study
Once you’ve figured out the case study components you want to use, then it’s time to work with your designer to figure out a case study format and layout that will make your story pop.
Done well, strong case study layout and format elements will:
- highlight case study results like key statistics, facts or quotes
- increase readability by providing breaks for the eyes and mind
- use visuals to explain processes or impacts
- boost credibility and trustworthiness
- break complex topics into digestible morsels
Carefully applied color, headers, subheads, bolded text and bulleted lists should be part of every case study format.
Quick Tip: See 6 case study format and layout elements to include.
5. Get approval from your customer to publish the story
If you’ve ever written a case study or collected customer testimonials, you know they’re cooperative endeavors. Your customer has given their time and granted you permission to tell their story. An important part of this cooperative process of how to write a case study is getting case study approval from your customer before it is released to the public.
Ideally, your customer is aware of the steps and deadlines involved in the creation of the case study upfront. Be sure you know who to send the case study to for review, and who within the organization needs to provide final case study approval.
If your case study is well written, accurate and true to the tone of your interview, the customer’s review and case study approval should be straightforward.
Quick Tip: Find out the 3 steps in the case study approval process.
6. Distribute and promote your case studies
A SaaS case study is one of the most powerful tools in your marketing toolbox. But it’s only valuable if it gets in front of the right eyes. Case study distribution and promotion is crucial.
Are you doing enough to promote your case studies?
Give prospects every opportunity to find and read your customers’ stories by distributing and promoting your case studies in a wide variety of ways. Some ideas:
- Dedicate a section of your website to your case studies.
- Promote the case studies on your homepage.
- Add your case studies to relevant product pages.
- Post about your case studies on social media.
- Use case studies in your email marketing campaigns and newsletters.
- Arm your sales team with the case studies.
- Include case studies in your pitches and presentations.
Quick Tip: See 34 ways to use promote your case studies.
7. Repurpose your case studies into multiple formats
When mastering how to write a case study, remember to repurpose your case studies into new formats to increase content exposure, engage more buyers and maximize the value of each asset.
Repurposing your case studies also allows you to effectively reach a wider audience with diverse content-consumption preferences—and extend the lifespan and impact of your customers’ successes.
For example, for each case study you produce, you should also produce slides for your sales folks to use in presentations. Here are 4 case study presentation examples for inspiration.
See 13 ways to repurpose your case studies so you can squeeze the most value from them.
Quick Tip: See 13 ways to repurpose your case studies so you can squeeze the most value from them.
8. Measure the performance of your case studies
Successful B2B SaaS case studies take time and effort to produce from everyone involved—including your customers—which means it’s crucial to evaluate whether these sales tools are performing well enough to make the content creation process worth your while.
However, when learning how to write a case study, it’s important to remember that determining case study success is often easier said than done. This is because many SaaS companies use both quantitative and qualitative metrics to evaluate a home run versus a dud, and gathering this data can be challenging.
Quick Tip: Find out how 8 customer marketers measure case study success.
Need a hand with your B2B SaaS case studies?
As a SaaS content marketing agency, we specialize in working with high-growth companies like ClickUp, Calendly and WalkMe.
With our case study writing service, you can:
- drive more leads and sales with case studies that resonate
- grab back more time to work on other high-value tasks like strategy and planning
- impress your bosses, colleagues and the sales team with the excellent results you’re getting from the content you’re responsible for creating
Check out our case study writing service for details on how we can help, or send a message if you’re ready to get started.
