John Warrillow's 2011 book explains how to build a service business that can be sold, told through a fictional agency owner who discovers his company is worthless without him.

The problem

The owner of a small marketing agency puts it up for sale and finds no buyers. The firm is profitable and busy, and every client relationship runs through him, every project is bespoke, and nothing is documented. A buyer would be purchasing a job rather than an asset — and a job that only works if the previous owner stays.

This is the specific commercial cost of owner dependency. The business generates income and has no transferable value.

The method

The fix is specialization. Identify the single service the firm does best, which clients value most and which recurs, then stop selling everything else. Turning down work that does not fit is the hardest step and the one that makes the rest possible.

With one service, the delivery can be turned into a repeatable process that a team can execute without the owner. A standard process supports standard pricing, and charging up front changes the cash cycle — a point the book makes repeatedly, since positive working capital funds growth without borrowing. See productization and cash conversion cycle.

The other requirements follow from what a buyer is assessing: more than one sales person, so revenue is not one relationship; no client above roughly fifteen percent of revenue, so the business is not hostage to one account; and recurring revenue, which makes future earnings forecastable. See client concentration and recurring revenue.

What it is for

The book is narrow and practical. It treats saleability as the test of whether a business is an asset, and its discipline is useful even to an owner with no intention of selling, because a business that could be sold is one that can survive its founder taking time off. See how to make a business sellable.