What is Business-to-Business (B2B)?

Business-to-business (B2B) describes companies that sell to other companies instead of to individual consumers. A payroll software maker, a commercial supplier, and a marketing agency are all B2B — their customers are organizations.

B2B differs from selling to consumers in almost every way: fewer customers, larger deals, longer sales cycles, and buying decisions made by groups rather than individuals. Those differences shape the whole business, from pricing to marketing.

What makes B2B distinct

In B2B, the person who uses the product often isn't the one who pays for it. Purchases involve budgets, approvals, and multiple stakeholders, which makes sales slower but deals larger and more durable.

• Fewer, larger customers — losing one account can hurt meaningfully.
• Longer sales cycles, often weeks or months, with multiple decision-makers.
• Buyers care about ROI, reliability, and support more than novelty.
• Higher prices and contracts make recurring revenue and retention central.

Why B2B matters for validation

Validating a B2B idea is different from B2C. The strongest signal isn't sign-ups — it's a business willing to pay real money or sign a letter of intent. Because there are fewer potential customers, you can often validate by talking directly to a handful of target buyers. If decision-makers with budgets are eager to pay, you have powerful early proof.