Sub-brand and endorsed brand: brand architecture when expanding

Sub-brands and endorsed brands are two different positions on the same brand architecture spectrum. A sub-brand draws credibility from the parent brand but retains some of its own personality. An endorsed brand stands more independently and only borrows the parent’s stamp of trust. Choosing the wrong position leads to two outcomes: the parent brand becomes diluted due to carrying too many mismatched images, or the sub-brand fails to leverage the assets that have been built previously.

The architectural spectrum and the position of each line

David Aaker describes brand architecture as a continuous spectrum: one end is "House of Brands" (each product line is a completely independent brand, like P&G with Tide, Pampers, Gillette), the other end is "Branded House" (everything carries a single name, like FedEx with FedEx Express, FedEx Ground). Sub-brands and endorsed brands lie in the two middle areas of this spectrum.

Sub-brand: the parent brand takes the lead position, while the sub-brand adds its own unique characteristics. The Honda Civic is a sub-brand of Honda. Customers buy because of Honda first, then Civic. The visual identity largely shares elements: colors, typography, and image style are inherited from the parent.

Endorsed brand: the sub-brand stands by its own name, with the parent brand appearing as a stamp of confirmation. Courtyard by Marriott is an endorsed brand. Courtyard builds its own personality for the mid-range business traveler segment, while Marriott only needs to be present to say: "we stand behind this place." The visual identities of both are much more distinctly separated compared to a sub-brand.

Why this decision is harder than it seems

When you launch a new product line, the first questions often are: "What name? What color?" But the real questions to ask first are: Who is this new line for, what price segment does it serve, in what shopping context, and does the customer for this line overlap with your current customers?

If the new line targets the same customer group, with similar expectations and pricing, then a sub-brand is reasonable. The parent brand lends its credibility, and the new line does not need to build from scratch. However, if the new line targets a lower segment or a completely different customer group, dragging the parent brand into it will damage both. Customers in the higher segment feel that the brand they are using is starting to "downgrade," while customers in the new segment do not feel that this line is designed for them.

Each additional brand is a real tax: operational costs, communication costs, and customer perception costs must be shared.

Principles of brand architecture, summarized from Brand Portfolio Strategy, David Aaker (2004)

Five questions before deciding on the structure

Aaker proposes a simple framework to check before naming or designing a logo. Sinh Vũ uses this framework as a mandatory step in every brand architecture project:

• Does the new line serve the same customer group as the parent brand, or a completely different one?
• If customers see both brands at the same time, do they think this is one house or two separate houses?
• Is the reputation of the parent brand aligned with the promise that the new line needs to deliver?
• Is the communication budget sufficient to build separate awareness for the sub-brand? If not, an endorsed or sub-brand will borrow some.
• If the new line fails, is there a risk of dragging down the parent brand?

You don't need to answer all five questions before starting the design, but if the first three questions lack clear answers, then every subsequent design decision will be guesswork.

The identification principle when the parent and sub-brand share assets

A sub-brand inherits the most from the parent brand: it often shares the main color palette, typography, and visual style. The sub-brand can only add a distinguishing feature like a secondary color, a unique icon, or a different layout. The principle here is: looking at any publication from the sub-brand, customers should recognize the parent first, then the sub-brand.

An endorsed brand is allowed to differ more, but needs a small "connector" so that the parent’s stamp does not look like an external label. This connector can be a common secondary font, the use of white space, or simply the fixed position of the parent logo on all materials. Without a connector, the two brands look like two unrelated companies placing their logos side by side.

When architecture is overlooked: two common outcomes

The first outcome is brand dilution. The parent brand initially has a clear position in the minds of customers, but as more sub-brands are introduced under the same name, that position becomes increasingly blurred. Customers no longer know what this brand truly excels at, who it serves, and what it represents. According to Byron Sharp, brand identity only accumulates when visual and verbal signals are consistently repeated. Dilution is the opposite process: each mismatched new signal is a small erosion of what has been built.

The second outcome is that the sub-brand fails to stand on its own. The business separates the new line with an independent name but lacks the budget to build awareness from scratch and does not borrow enough credibility from the parent. The result is a nameless brand with no clear reason for customers to trust it, forced to compete on price because there is nothing else to rely on.

A principle to maintain both

Good brand architecture is not a pretty diagram on a presentation. It is a set of principles that answers practical questions: when the marketing team needs to create a banner for the sub-brand, what colors do they use, what font, where does the parent logo go, and how much space is allocated for the parent’s identity? If the answers depend on who is doing it that day, then the architecture only exists on paper.

Wally Olins reminds us that a brand is not found in a design file but in the behavior of the organization: how people speak, how they act, how they present themselves at every touchpoint with customers. Brand architecture is the same. It only becomes real when it is operationalized, not when it is approved.