Crossing the Chasm: how to choose a beachhead segment

Who should use it, and when not to

Use it when a product has a handful of keen customers and sales to everyone else are slow and custom. Other signs: every deal needs special work, the team chases any lead it gets, and nobody can say in one sentence who the product is for. It also helps before a launch or a hiring plan, to decide where to focus first.

It fits best for new, unfamiliar products that ask buyers to change how they work, mostly sold to businesses. It helps less for a product that customers already understand, like a new café on a busy street. And it assumes someone wants the product at all. If that's still unknown, test the idea first with the build-measure-learn loop.

The core concepts

The technology adoption life cycle. Moore adapted Everett Rogers's diffusion of innovations into five groups of buyers, in the order they adopt: innovators, early adopters, early majority, late majority, and laggards. Each group buys for different reasons.

The chasm. The break between visionaries and pragmatists. A visionary's purchase is no reference for a pragmatist, because the pragmatist wants to hear from someone like them. So a product can have happy early customers and still get no mainstream sales.

The beachhead and the D-Day analogy. The book compares crossing the chasm to the Allied landings in Normandy: rather than attack everywhere, put everything into taking one beach, then push inland. In business terms, pick one segment a segment you can lead that is still worth winning, close to your strengths. Choose one with a compelling reason to buy: a problem painful enough that they'll take a chance on a new supplier.

The whole product. What the customer needs to get the result: the core product plus setup, integrations, training, support, and partners. Visionaries assemble the missing pieces themselves. Pragmatists won't.

Positioning. The book gives a short fill-in positioning statement. It names the target customer and their problem, the product's category and key benefit, and the main alternative the customer would otherwise use, with what makes you different. Its aim is to place you next to options the buyer already knows.

Adjacent segments. Once the beachhead is won, its customers are references for the next segment that shares the same customer or the same use case, then the next, like bowling pins.

A worked mini example

This is an illustration. A company sells appointment software with text reminders that patients confirm by reply. It has 40 paying customers: 14 physio clinics, 9 hair salons, 8 dog groomers, and 9 others. The clinics found it through one physio association newsletter, and they say no-shows hurt because each 45-minute slot uses a therapist's time. Salons compare it with free tools and leave often. The clinics ask for an integration with their practice software and for insurance-claim notes.

The clinics win, though their whole product needs work. The plan: build or partner for the integration, add claim notes, ask the 14 clinics for references, and put new salon and groomer leads on a waitlist. The next segments are other one-therapist-per-slot clinics, then larger physio groups.

How to choose a beachhead

1. Place the product on the adoption curve. Look at who has bought so far and why, and decide whether sales come from enthusiasts and one-off projects rather than from repeat buyers in one niche.
2. List 3 to 8 narrow candidate segments. Define each by role, type of company, region, and use case, narrow enough that members know each other.
3. Score each segment. Rate urgency of the problem, budget and a clear buyer, how soon you can offer a whole product, reach, word of mouth inside the segment, size, rival strength, and how well it opens the next segment.
4. Choose one beachhead. Pick the best-scoring segment with an urgent problem, describe its target customer, and write the compelling reason to buy as the cost of doing nothing.
5. List the whole-product gaps. Write every piece the customer needs beyond the core product and mark each as have, partner, build, or drop, with an owner.
6. Draft the positioning. Write one statement naming the customer, problem, category, benefit, and the main alternative, in the customer's words.
7. Name the next segments and what you'll stop. List the adjacent segments in order, decide which leads you'll turn away for now, and set a target that shows the beachhead is won.

The beachhead plan skill runs these steps with your customer list and marks the facts it doesn't have.

Common mistakes

• Picking the biggest market. A segment you can't lead gives you no references.
• Picking two beachheads. Split effort wins neither.
• Selling the core product alone. Pragmatists stall when pieces are missing.
• Treating visionary wins as proof. Pragmatists ask for references from people like them.
• Never leaving the beachhead. It is a starting point. Once it's won, move next door.

For a fuller positioning exercise once the beachhead is chosen, use the positioning statement skill. To learn why customers in a segment switch, see the switch interview.

Where it comes from

Geoffrey A. Moore published Crossing the Chasm in 1991 with Harper Business, with revised editions in 1999 and 2014 (the 3rd edition, HarperBusiness). The D-Day analogy and the positioning fill-in described above come from the book. It builds on Everett Rogers's research on how innovations spread. Rogers himself disputed that a sharp break exists between adopter groups, so treat the chasm as a useful model rather than a measured law. In a later book, Inside the Tornado (HarperBusiness, 1995), Moore describes the "bowling alley": each niche won helps knock over the next. The Japanese edition of the third edition, キャズム Ver.2, was published by Shoeisha in 2014.

This page is an independent summary in our own words. It is not affiliated with or endorsed by Geoffrey Moore or his publishers. The book's title is used only to name it. More explainers are in the strategy books index.

Questions

What is the chasm in Crossing the Chasm?

It is the gap between early adopters, who buy a new technology for its promise, and the early majority, pragmatists who want proof and a complete solution. Many products sell well to the first group and stall before the second.

What is a beachhead market?

One narrow segment of mainstream customers with an urgent problem that a company sets out to win almost completely. Its customers then serve as references for the segments next to it.

What is the whole product?

Everything a customer needs to get the result they bought for: the core product plus setup, integrations, training, support, and partners. Pragmatists won't assemble the missing pieces themselves.