I was walking through Riga at night a few weeks ago and something stopped me on the street. A building wall — one I'd walked past a hundred times — was completely lit up with a moving ad. Bright, crisp, impossible to ignore. People around me were doing the same thing I was: stopping, looking, taking their phones out.
It wasn't a screen. It wasn't a billboard. It was a projector mounted somewhere nearby, turning a plain wall into a massive living advertisement.
I stood there for a while. Not because the ad was interesting — but because I immediately started thinking about who owned that projector, who was paying them for it, and why I hadn't seen this everywhere already.
Turns out the answer to that last question is simple: most cities still don't have them. The technology is ready. The demand from advertisers is there. The infrastructure just hasn't caught up yet — which is exactly where the opportunity sits.
What this actually is
There are two versions of this business and they work very differently.
🏢 Large building projectors
High-powered projectors (10,000–30,000+ lumens) that beam onto building facades, creating massive moving displays visible from hundreds of meters away. Think product launches, brand campaigns, event promotions. The wow factor is enormous — these things stop foot traffic at night.
🏪 Small gobo projectors
Compact LED units mounted near shop entrances, projecting a logo, message, or animation onto a nearby wall or pavement. A coffee shop projecting its logo on the pavement outside. A boutique projecting a sale message. Low cost to install, high impact for local businesses.
Both models make money the same way: you own the equipment, you charge businesses to advertise on it. The large format is a premium campaign product. The small format is a recurring monthly service. You can run one or both.
The market right now
The global digital signage market is valued at over $21 billion in 2026 and is projected to reach $30 billion by 2032. The out-of-home advertising market — which is where projection advertising sits — is a separate category worth over $33 billion globally and growing.
And here's the thing — while the big markets like the US and UK are developing this fast, most mid-size European cities are still essentially empty. Walk around Riga, Vilnius, Tallinn, Krakow, Ljubljana at night — you'll see almost none. The demand from advertisers is the same everywhere. The supply of operators isn't.
How the money works
There are two ways to make money with this and they're very different in scale.
Small gobo units near shops — you install a compact projector outside a business (restaurant, boutique, bar) and charge them a monthly fee to run their branding. Equipment costs $300–$1,500 per unit depending on power. You charge the business €150–400/month. One unit pays itself off in 2–4 months. Twenty units running is €3,000–8,000/month with almost no ongoing costs.
Large building projection campaigns — you rent a high-powered projector, negotiate permission from a building owner, and sell campaign slots to brands. A single night campaign in a city centre can generate $1,500–5,000 per booking. Companies like AltTerrain in the US charge premium rates for this format because the visual impact is genuinely unlike anything else in outdoor advertising.
The smartest starting point: Begin with small gobo units. Lower cost, faster payback, predictable recurring income. Once you have 10–15 running and understand the market, add a large projector for campaign work. The two models complement each other — recurring income from the small units funds the big equipment.
How to start
Start with 2–3 gobo units — approach local restaurants, bars, or boutiques. The pitch: "I install a projector outside your door that shows your logo or promotion. You pay a monthly fee, I handle everything." Most say yes. It makes their shopfront stand out at night with zero effort on their part.
Check local regulations — some cities require permits for outdoor projection. In most European cities this is straightforward but worth confirming before you invest in equipment. It varies a lot by municipality.
Negotiate building access for larger projections — building owners often say yes if you split revenue with them or offer a flat fee. A blank white wall in a busy area is worth money to them too — they just haven't thought about it.
Sell campaign slots to local businesses — events companies, hotels launching a new menu, retailers with seasonal sales, real estate agencies. Anyone who wants attention at night and has a marketing budget. The format is new enough in most cities that early adopters get outsized attention.
Where to buy the equipment
COLIFINE China - Small & large units
One of the most established manufacturers of LED gobo projectors globally. Makes both compact shop-front units and large outdoor advertising projectors. Widely used commercially, long track record, competitive pricing. Good starting point for sourcing.
INNAYA - Budget friendly small units
Popular for outdoor gobo projectors, IP67 waterproof rated, good reviews for shop-front and event use. Units start under $500. Recommended for your first 2–3 installations while you validate the business model.
Goboservice - Italy premium
High-end Italian manufacturer — projects logos, text, and animations onto walls, floors, and ceilings. Used by major retailers and brands across Europe. More expensive than Chinese suppliers but build quality and support are significantly better. Worth it for large campaign work.
VKF Renzel - EU made
German supplier offering gobo, hologram, and LED advertising projectors for both indoor and outdoor use. Ships across Europe, EU warranty, good for operators who want reliable hardware with local support.
Alibaba - general sourcing in China
Wide range of outdoor projectors at $200–2,000+ per unit. Look for IP65/IP67 ratings, 10,000+ lumens for outdoor use, and verified supplier reviews. Good for scaling once you know exactly what spec you need.
What I keep coming back to from that night in Riga is how simple it looked. A box on a wall. A plug. And an entire building facade turned into the most attention-grabbing thing on the street.
Most cities still don't have this. Not because it doesn't work — but because nobody's set it up yet. That's the whole point.