A customer is any individual, group, or organization that purchases or uses a company's products or services, either for personal use or on behalf of another party. The term is foundational to every business model — no customers, no revenue, no company.
According to Salesforce's State of the Connected Customer report, 88% of customers say the experience a company provides is as important as its products or services. And Bain & Company research shows that increasing customer retention by just 5% can boost profits by 25–95%.
What Are the Different Types of Customers?
Not all customers are the same. Understanding which type you're serving shapes how you market, sell, and retain.
New customers — first-time buyers who haven't yet formed a loyalty. High acquisition cost; critical first impression window.
Loyal customers — repeat buyers who have chosen you over competitors multiple times. They represent disproportionate revenue: Pareto's principle holds here — roughly 20% of customers drive 80% of revenue.
Impulse customers — make unplanned purchases based on emotion or convenience. Respond well to limited-time offers and strong social proof.
Discount customers — primarily motivated by price. Harder to retain long-term but valuable for volume.
Wandering customers — browsing without strong intent. Lowest conversion rate but reachable with clear value propositions.
B2B vs B2C customers
- B2C (Business-to-Consumer): An individual buying a product for personal use — a shopper buying shoes online.
- B2B (Business-to-Business): A company purchasing from another company — a startup buying project management software. B2B sales cycles are longer and involve multiple decision-makers.
Internal vs External customers
- External customers are the traditional definition — people outside your organization who pay for your offering.
- Internal customers are teams or employees inside your organization who depend on another department's output. An engineering team is the internal customer of a DevOps team, for example.
Customer vs Consumer vs Client — What's the Difference?
These three terms are often used interchangeably, but they carry distinct meanings.
Customer — buys a product or service, may or may not be the end user.
Consumer — the end user of the product, whether or not they paid for it. A parent buys cereal (customer); the child eats it (consumer).
Client — typically used in professional services (law, consulting, design). A client engages in an ongoing, relationship-based service rather than a transactional purchase. All clients are customers; not all customers are clients.
Why Does Understanding Customers Matter?
Businesses that deeply understand their customers outperform those that don't — consistently and measurably.
Product development: Customer insight tells you what to build next and what to kill. Building without it is guesswork.
Marketing efficiency: Knowing your customer's motivations, pain points, and language lets you write copy that converts instead of copy that fills space.
Retention: Harvard Business Review reports that acquiring a new customer costs 5–25x more than retaining an existing one. Understanding why customers stay — or leave — is the highest-leverage retention lever you have.
Trust and social proof: Customers buy from businesses other customers already trust. That's not a soft claim — it's the mechanism behind reviews, testimonials, and word-of-mouth referrals that consistently outperform paid acquisition.
How StarHQ Helps You Understand Your Customers
The fastest way to understand your customers is to hear directly from them. StarHQ lets you collect, manage, and display customer testimonials and feedback — turning real customer voices into your strongest marketing asset. When prospective buyers see what existing customers say in their own words, the gap between "interested" and "converted" shrinks fast.
Start collecting customer feedback free →