A construction company valuation is the same arithmetic as any owner-run business, with two things the trade adds: the backlog, the signed work not yet built, which a buyer reads as the next year's revenue, and the equipment, which is added at its agreed value and can be a large share of the price. The owner doing the sum before a broker does it starts from the last twelve months' profit with the owner's salary and the one-off costs added back, multiplies by the number they were quoted, and adds the equipment. This page works the construction business valuation calculator on the hub's example, then the manufacturing business, the engineering firm and the architecture firm, which differ in their assets and their add-backs. The free small business valuation tool on this site does the sum from your own figures, with no account, and publishes no multiple.
How to value a construction company: earnings, backlog and equipment
Discretionary earnings are the profit plus the owner's salary, benefits, interest, depreciation and one-off costs; $180,000 on the hub's example. Value is that times the multiple you enter, $450,000 at 2.5, and the equipment, the trucks, trailers and machines, is added on its own line at its agreed value, as the inventory is added at cost on the tool's example ($36,000, for $486,000). The backlog is not multiplied and not added: it is the fact a buyer reads to decide whether the earnings continue, and it moves the multiple the owner enters. A company with a year of signed work under contract sits at a different multiple from one that bids every job, and that is the owner's judgement, not a figure the hub publishes.
Manufacturing business valuation: inventory, machinery and the customer list
How to value a manufacturing business is the same sum with the inventory and the machinery as the added lines and the customer concentration as the buyer's question. Raw materials, work in progress and finished goods are added at cost; the machinery at its agreed value in place, which for a shop with a paid-off line can exceed the earnings value. On $180,000 of discretionary earnings at 2.5 the earnings value is $450,000 and the additions follow. The IRS Form 8594, linked below, is the statement both sides file allocating the price across inventory, equipment and goodwill when the sale closes, and having the lines separate before the negotiation is what makes that form a copy rather than an argument.
Engineering firm valuation: the people are the asset
An engineering firm carries little inventory and modest equipment, so its value is discretionary earnings times the multiple you enter, and the buyer's question is whether the licensed engineers and the client relationships stay after the sale. The owner's salary is the add-back, and if the owner is the licence the firm stamps under, a replacement licensed engineer's salary comes back out; the Bureau of Labor Statistics' occupational wage data, linked below, is where that salary is read. On the hub's example the arithmetic is $450,000 at 2.5, and the report tool on this site turns the value at two or three multiples into a range with a midpoint.
How to value an architecture firm: the same sum, the same question
An architecture firm is valued as the engineering firm is: discretionary earnings at the multiple you enter, the owner architect's salary as the add-back, the replacement principal's salary as the counter, and the contracts in hand and the client relationships as the facts that move the multiple. Equipment is modest and added at its agreed value. The Small Business Administration's guide to selling a business covers the sale for any of these companies; the free small business valuation tool on this site does the arithmetic from the owner's own figures, and the paid plan files each valuation against the company and the date so the next one shows what changed.
Questions people ask about construction company valuation
How is a construction company valued?
Discretionary earnings, the profit plus the owner's salary and one-off costs added back, times the multiple you enter, plus equipment at its agreed value. The backlog moves the multiple rather than being added. $180,000 at 2.5 is $450,000 before the equipment line.
How is a manufacturing business different?
Inventory at cost and machinery at its agreed value are added to the earnings value, and customer concentration is the buyer's question. Form 8594 later allocates the price across those classes.
How are engineering and architecture firms valued?
Discretionary earnings at your multiple, with the owner's salary as the add-back and a replacement licensed principal's salary as the counter; the people and the client relationships are the asset.