Micro-Stores in Building Lobbies – a Predictable Growth Engine

01 /The Concept

Sales is a craft. What gets elevated to art is showing up in the right place at the right time with the right offer.

Tulu has turned that into a repeatable system – by securing physical space inside buildings and serving residents whatever they need, whenever they need it. The vehicle: fully automated micro-stores installed in lobbies, entryways, and common areas.

The buildings in question span a range of property types: multifamily residential, office complexes, student housing, and hotels. Think of it as distribution infrastructure embedded where people already live and work – no marketing spend required to reach the customer, because the customer walks past the store every day.

Tulu's stores offer five categories of service:

- Rental of household appliances and electronics – from vacuums and air fresheners to gaming consoles and VR headsets.

- Sale of everyday consumables – snacks, toilet paper, paper towels.

- Rental of electric scooters and e-bikes.

- Document printing via an in-store printer.

- Home services like cleaning and dry cleaning, orderable through the Tulu app.

All services – rentals, purchases, and printing – are accessed through the app. A user selects an item and pays; the corresponding locker opens, the rental timer starts, or the print job begins for the file uploaded in-app.

Tulu shares revenue with the building owner whose residents are generating that activity.

Initial inventory mix and ongoing optimization are handled by Tulu's AI engine, which tracks which products and services are actually being used in a given building, runs experiments on assortment and pricing, and adjusts accordingly.

The results: 52% of building residents actively use the service, and around 80% describe Tulu as their "favorite building amenity" and say they "would be disappointed if it disappeared."

Tulu was [covered previously](/review/v-tapochnoj-dostupnosti) in 2022. The company has now closed a $12M round, bringing total funding to $42M.

02 /Why It Matters

Tulu is already serving more than 500,000 people across 60 cities in the US, Canada, UK, Ireland, the Netherlands, Germany, Spain, Austria, France, Portugal, Denmark, Sweden, Norway, and Italy.

The most important line from the company's recent funding announcement: "user count grows exponentially as the number of buildings served increases." Adding a single building adds hundreds of users at once. That's a network effect without virality – the platform grows not because users recruit other users, but because each unit of supply (one building deal) unlocks a concentrated pocket of demand.

This growth mechanic is the real insight here – and crucially, it's not limited to physical retail.

Layer ([related review](/review/kak-bystro-poluchit-100-tysjach-tjoplyh-klientov)) built an online accounting product for small businesses – but rather than selling it directly, it built an "embedded accounting" module that any other small business service can integrate and resell to its own customers.

The growth logic is identical to Tulu's. Add one partner platform, immediately reach hundreds or thousands of their users as potential customers. Yes, Layer has to share revenue – but the cost of customer acquisition is so low that the unit economics work. Layer raised an additional $6.6M in July, after the earlier review was published.

Uprise ([related review](/review/vygodnee-ne-iskat-klientov-samomu)) used the same embedded distribution model for a financial advisory platform for small businesses and raised $4.7M.

Unravel ([related review](/review/a-prodavat-jeto-nuzhno-ne-tak-kak-vy-dumali)) built a TikTok-style travel marketplace where users see short video reels from travel bloggers instead of static catalog listings. It raised $7M in April – but only after pivoting to offer airlines, banks, and telecoms the ability to embed its marketplace inside their loyalty programs. One integration, thousands of potential buyers.

Jotelulu ([related review](/review/revoljucija-v-prodazhah-it-servisov)) is a cloud services provider whose distribution model lets any IT firm resell its services to clients under their own brand. The IT firm earns extra revenue; Jotelulu gains users at scale. The company raised €11.8M.

03 /Opportunities

Every startup wants exponential growth. But the standard advertising playbook doesn't produce it – you pay per user, and growing exponentially that way would require exponentially larger budgets, which in turn requires demonstrating exponential growth first. A circular problem.

Word-of-mouth can break that loop – when users naturally recruit other users. But organic virality is hard to engineer, and even when it ignites spontaneously, it can fade just as unpredictably.

The more reliable and predictable path is the mechanism described today: invest time and effort to win one partner or one location, and that single move immediately delivers hundreds or thousands of users. The key distinction from advertising: you're not buying each user individually. You're buying access to a concentrated group.

Which surfaces a high-value question: how can this model apply to your startup? Or working backward – what kind of product would need to exist for this mechanism to activate in your specific category? What partnership or integration would be your "building deal"?

The payoff for answering that question is exponential growth – with all the benefits that come with it