A business with one dominant customer can still be valuable, but the transaction depends heavily on contract strength, relationship continuity, profitability, and the buyer’s ability to retain or replace the account.

Many online businesses depend on Amazon, app stores, search engines, social networks, advertising platforms, payment providers, or software ecosystems. Buyers will evaluate how a policy or account change could affect the company.

Contracts determine whether revenue, suppliers, employees, technology, and services will continue after ownership changes. A seller should understand assignment, termination, liability, renewal, and change-of-control provisions before negotiations.

Buyers need confidence that the seller owns or can transfer the technology, content, brands, designs, and data that produce the company’s value. An intellectual property audit identifies gaps before they become transaction problems.

Customer data can be commercially important, but it cannot be treated like an ordinary file. The seller must consider privacy notices, contracts, legal grounds, transaction structure, security, and the buyer’s intended use.

A security incident during a sale can interrupt operations, expose customer data, and cause a buyer to withdraw. Founders should review access, infrastructure, data protection, and incident history before diligence.

Technical due diligence helps a buyer understand whether the software, infrastructure, data, and development process can support current customers and future ownership.

Legal due diligence confirms who owns the company and assets, which obligations transfer, and whether unresolved disputes or compliance issues could affect the acquisition.