Mercadona: The World’s Most Profitable Supermarket, Owned by One Family

Mercadona should not work. It is a single-format, single-country grocer with no loyalty card, minimal advertising, an unusually limited assortment and an obsessive commitment to its own private label — and it earns higher margins than any listed supermarket group on earth. Understanding why is the most useful thing in European food retail. This case study is part of the Spain Company Stories hub.

What is the actual model?

Radical simplification in the service of low prices. Mercadona carries a much narrower assortment than a conventional supermarket, dominated by its own brands — Hacendado in food, Deliplus in cosmetics and others — which removes the shelf-space negotiation with branded suppliers and the promotional cycle that comes with it.

Prices are set low and kept stable rather than moving through promotions. There is no loyalty programme, no weekly offers to chase and comparatively little advertising. The proposition is that the everyday price is the best available, which removes the operational cost of running promotions entirely.

The supplier structure is the distinctive element. Mercadona works with what it calls interproveedores, long-term partner manufacturers who produce its brands under multi-year relationships, invest in dedicated capacity, and share planning data. That is closer to vertical integration than to conventional procurement.

Why does the supplier model produce higher margins?

Because it removes cost from the entire chain rather than extracting it from suppliers. A conventional retailer negotiates annually with branded manufacturers, each side spending heavily on promotion, listing fees, trade terms and category management. Mercadona replaces that with long-term partnerships in which the manufacturer’s investment is protected.

For the supplier, a guaranteed volume over several years justifies dedicated production lines, specialised equipment and process investment that no annually negotiated contract would support. Those investments lower unit costs, and the saving is shared.

For the retailer, it means product specification, cost structure and supply reliability are directly controlled. The company describes this network as an industrial cluster and reports that it generated more than 5,200 new jobs during 2025 through factory construction, expansion and farm improvement.

How does it treat employees?

As a cost centre it deliberately does not minimise, which is unusual in grocery retail. In 2025 the company shared more than €1,000m with staff through improved working hours, performance-related bonuses and salary increases indexed to inflation, and it created around 5,000 new jobs.

The commercial rationale is turnover cost. Grocery retail typically suffers very high staff churn, and every departure carries recruitment, training and productivity costs alongside deteriorating service. A workforce paid above market with a genuine bonus culture stays, and experienced staff run stores better.

The results support the argument. Record improvements in productivity, management and efficiency were the stated drivers of the 2025 profit increase, and productivity in a labour-intensive business is substantially a function of experience and retention.

What is the Portuguese expansion doing?

Testing whether the model travels. Mercadona has invested over €1bn in Portugal, reached around 70 stores including entry into the Lisbon market, and in June 2025 opened its largest logistics centre to date at Almeirim — 120,000 square metres, 630 employees and €290m of investment.

Portugal was chosen deliberately as a first international market: adjacent geography, comparable consumer income, a shared supply base and a grocery market dominated by two incumbents whose model Mercadona’s undercuts on price.

Portuguese sales approaching €2bn indicate genuine traction. The strategic significance is larger than the numbers: a domestic champion demonstrating that its system works outside its home market changes the ceiling on its long-term value.

What is Store 9 and the investment plan?

A redesign of the format itself. Mercadona plans to invest €3,700m developing what it calls Store 9, moving from a business-based model to a process-based one, with more space for fresh produce and a simpler, more flexible shopping experience.

For 2026 the company expects to invest over €1bn, opening new technology centres it calls Hives, expanding and renovating logistics capacity, creating over 1,000 jobs and growing sales 3.5% to €43.2bn while maintaining profits at similar levels.

That last commitment is worth noting. A privately held company can plan explicitly for flat profit while investing heavily, because it answers to no quarterly market expectation. A listed competitor announcing the same plan would face immediate pressure.

What is the wider economic footprint?

Very large relative to the company’s size. Independent estimates have put the activity of Mercadona and its supplier network at contributing tens of billions in revenue and hundreds of thousands of jobs, equivalent to roughly 2% of Spanish gross domestic product and around 3.7% of total Spanish employment.

Those figures reflect the industrial cluster rather than the retailer alone. Because Mercadona’s model depends on dedicated manufacturers producing its brands, its growth pulls a supply chain along with it in a way that a retailer selling third-party brands does not.

That is the deeper reason the model matters to Spain. A grocery chain that grows by importing branded products generates retail employment; one that grows by expanding a domestic manufacturing base generates industrial employment, and the second is considerably more valuable to an economy.

How does the online business work?

Slowly, deliberately and now profitably. Mercadona was late to online grocery and built it around dedicated fulfilment centres rather than picking from stores, which is more capital-intensive upfront and considerably cheaper per order at volume.

Online sales have grown to around 2.5% of total business, which is small by comparison with several European markets and reflects both the company’s caution and the density of its store network — when a supermarket is a short walk away and prices are low, the case for paying for delivery is weaker.

The strategic point is that the company waited until the economics worked rather than buying market share at a loss. Online grocery has destroyed capital across Europe, and a retailer that entered late with a profitable model has avoided that.

How does Mercadona compare with its competitors?

It leads on share and on margin simultaneously, which is unusual. Spanish grocery is contested by Carrefour, Lidl, Dia, Alcampo, Eroski and regional chains, and Mercadona’s 28.5% share is roughly double its nearest competitor’s while its margin is several times theirs.

The nearest strategic comparison is Lidl, which also runs a limited assortment dominated by own brands at low prices. The difference is fresh food: Mercadona invests heavily in fresh produce, fish, meat and bakery, which is where Spanish shoppers make their store choice.

The Portuguese comparison is instructive too. Mercadona’s expansion there competes directly with Pingo Doce and Continente, both operated by groups with strong own-brand programmes of their own, which makes Portugal a genuine test of the model against comparable rather than weaker competition.

What is the succession question?

The one governance issue that matters. Mercadona is controlled by Juan Roig and Hortensia Herrero, and its strategy, culture and long-horizon investment philosophy are closely identified with them personally.

Family-controlled retailers at this stage typically face a choice between professionalising governance while retaining ownership, listing to create liquidity, or fragmenting across heirs with different intentions. Each path changes the company materially.

The commercial stakes are unusually high because the model depends on things listed companies find difficult: accepting flat profit while investing heavily, paying above-market wages, and maintaining decade-long supplier commitments. Whichever structure follows must be able to sustain those choices.

What does the Spanish grocery market look like?

Concentrated at the top and competitive beneath it. Mercadona holds 28.5%, up 0.6 points in 2025, with Carrefour, Lidl, Dia, Alcampo, Eroski and strong regional chains dividing the remainder.

Private label penetration in Spain is among the highest in Europe, which reflects both Mercadona’s model and the competitive response to it. Spanish consumers accepted own-brand products earlier and more completely than in France, Italy or the United Kingdom.

The result is a market where branded manufacturers have less shelf power than almost anywhere else in Western Europe, and where the retailers rather than the brands own the customer relationship. That structure is unusual and it was substantially created by one company.

What can other retailers actually copy?

The supplier model, in principle. Long-term partnerships that justify manufacturer investment are available to any retailer willing to commit volume over multiple years, and several European grocers have moved partially in that direction.

What is harder to copy is the discipline that surrounds it: a narrow assortment, stable everyday pricing without promotions, no loyalty programme, and a willingness to accept flat profit while investing. Each of those choices removes a lever that competitors rely on.

The hardest element is ownership. A privately held company can commit to a decade-long supplier relationship and a year of deliberately flat profit; a listed competitor announcing the same would face immediate pressure from shareholders whose horizon is considerably shorter.

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