Out-of-home advertising, tube cards, billboard posters, bus shelter panels, airport screens, is a regular fixture in early-stage startup pitch decks and marketing plans. It carries a certain authority. It feels like what real companies do. It is also, in almost every case, the wrong use of a limited marketing budget at the seed or Series A stage.
We recently attended a pitch night where a startup raising half a million pounds planned to spend half of it on OOH advertising. Their reasoning was that marketing would be rocket fuel for their growth. The instinct is right. The channel is wrong.
What OOH is actually good at
Out-of-home advertising does one thing well: it builds broad awareness in a specific geography. If a significant proportion of your target customers commute through a specific location, pass a specific set of billboards, or travel through a specific airport, OOH can generate meaningful impressions among a relevant audience.
It is an awareness channel. It works at the top of the funnel, before a customer has any intent to buy, before they have searched for your product, and before they have any particular reason to pay attention to your message. For companies with strong brand recognition, a clear and simple value proposition, and a product that converts on the basis of familiarity and visibility, OOH can play a role.
Why it rarely works at early stage
Early-stage startups rarely have any of the conditions that make OOH effective. The product positioning is usually still being refined. The customer acquisition model has not been validated. The conversion path from awareness to purchase has not been tested. Running an awareness campaign into a funnel with unknown conversion rates is an expensive way to generate data about whether your message resonates with a broad audience.
OOH is also unmeasurable in any meaningful sense at the level of precision an early-stage company needs. You can count impressions. You cannot attribute a specific customer acquisition to a specific poster. When budget is limited and every pound needs to be accountable, that lack of measurability is a serious problem.
What to do instead
The same budget that would fund an OOH campaign for two weeks would fund several months of structured digital experimentation across paid search, paid social, and content channels, each of which can be measured, attributed, optimised, and turned off if they are not working.
The goal at early stage is not to generate awareness at scale. It is to find the specific combination of message, audience, and channel that produces customers at an acceptable cost. That process requires feedback, iteration, and the ability to change direction quickly. OOH provides none of those things.
Spend on channels that can be measured, attributed, and adjusted. OOH is a scale channel for companies that already know what works. Before that point, it is expensive guesswork with no feedback loop.