How to invest money in SMEs in Spain: the asset class nobody talks about
How to invest money in SMEs in Spain: the asset class nobody talks about
How to invest money in SMEs is to allocate capital to small and medium-sized enterprises that are unlisted (or listed on alternative markets such as BME Growth) in exchange for equity, a loan with interest or a partner stake. It is an asset class distinct from conventional equity markets, with its own logic of risk, liquidity and returns. And, despite SMEs representing 99.8% of the Spanish business fabric according to the Instituto de la Empresa Familiar, almost no one talks about how retail investors can invest in them. This guide explains the real routes, minimum tickets and what you can realistically expect to earn.
What does investing in SMEs really mean?
Investing in SMEs means providing capital to small or medium-sized companies in exchange for equity, debt or partner rights. When someone says "investing in SMEs" they can be referring to five very different things. Confusing them is the first mistake.
The first is buying shares of SMEs listed on alternative markets. In Spain there is BME Growth, a market managed by Bolsas y Mercados Españoles that replaced the old MAB and which, according to the platform's own data, gives access to 126 small and medium Spanish companies.
The second is equity crowdfunding: providing capital to an SME in exchange for shares, usually via platforms regulated by the CNMV. The third is crowdlending: lending money to the company in return for a fixed interest. The fourth is becoming a business angel, which implies higher tickets, direct contact with founders and horizons of 2 to 8 years, as documented by Roams. And the fifth, the most invisible, is direct purchase or participation in an SME through succession, a route that in Spain has little infrastructure for private investors but that in the U.S. already moves billions through so-called search funds.
Each of these routes has its own profile of minimum ticket, risk, liquidity and regulation. Investing 250€ in a real estate project via a platform is not the same as putting in 25,000€ in a family SME without a successor.
What market gap is almost nobody looking at in Spain?
The gap is the lack of succession: many SMEs will change hands or close in the next decade. More than 60% of Spanish SME owners are currently over 55 years old, and only 3 out of 10 companies have a real succession plan, according to an article in Emprendedores published in February 2026. Family SMEs, which represent 89% of the Spanish business fabric according to the Instituto de la Empresa Familiar, only pass to the next generation in one out of three cases. The rest are sold, merged or disappear.
The Ministry of Labour, according to reports collected by RRHH Digital, estimates the phenomenon could put up to 600,000 jobs at risk each year in Europe. A Robert Walters study cited by El Economista goes further: only 19% of Spanish companies have a formal succession plan, and 41% admit to having no plan at all. The same study notes that 81% of business leaders acknowledge a shortage of senior talent, which worsens the succession problem from the supply side.
What does this mean for an investor? There is a huge volume of profitable companies, with loyal customers and consolidated teams, that in the next ten years will change hands or close. It is a structural market gap. The conventional financial industry, focused on listed products, is not pricing it. Crowdfunding platforms only cover part of it. And the government's proposal for citizen funds so that workers can buy SMEs without succession, covered by RRHH Digital in March 2026, is still embryonic.
What are the 5 real routes to invest in SMEs from Spain?
This is the table almost no guide publishes fully. It combines data from BME, CNMV, crowdfunding platforms and ranges documented by Cambridge Associates and Roams.
| Route | Minimum ticket | Indicative return | Liquidity | Main risk |
|---|---|---|---|---|
| BME Growth (listed SMEs) | Variable, from the price of a share | Volatile, similar to small caps | Medium (regulated market) | Relative low liquidity, volatility |
| Equity crowdfunding | €500–1,000 | 9–13% annual indicative | Low, 2–7 years | Total loss if the project fails |
| Crowdlending | €50–500 | 7–10% annual | Medium, defined terms | Borrower default |
| Business angel | €10,000–50,000 | Very variable, high potential | Very low, 2–8 years | Concentration, information asymmetry |
| Direct business succession | From tens of thousands | Variable, company-dependent | None short-term | Operational, active management |
Regulation matters more than it seems. Crowdfunding platforms operating in Spain must be authorised by the CNMV under the European figure of the Provider of Participative Funding Services. If a platform does not appear in the CNMV register, do not invest.
How much money do you need to start investing in SMEs?
Less than you think, if you choose the right route. Crowdlending allows you to start from €50 on some Spanish platforms. Equity crowdfunding typically starts at €500. A BME Growth share can cost a few euros, although practical diversification requires several thousand. Being a business angel is another game: the sensible minimum entry is around €10,000 per deal, and to build a minimally diversified portfolio you need to multiply that figure by five or ten.
The practical rule for someone starting: do not allocate more than 5–10% of your investable wealth to illiquid private assets, and within that percentage diversify across at least 8–10 deals.
How much do you really earn? Unvarnished returns
Average returns can be high, but they depend heavily on the vehicle and dispersion is large. Let's look at the data.
According to Cambridge Associates, cited by SmartAsset, private equity funds have delivered an average annual return of 13.1% over the past 25 years, versus 8.6% for the S&P 500 over the same period. It sounds spectacular. But there are nuances almost no one mentions.
The first nuance comes from Morningstar in an analysis published in 2025: serious academic studies (Phalippou 2012, L'Her 2018) show that when you adjust the S&P 500 benchmark for a comparable small-cap index, private equity's outperformance practically disappears. In other words, what looks like extra return may simply be the premium for investing in smaller companies, accessible also from the stock market.
The second nuance is dispersion. The mean hides that top-quartile funds can make 20–30% annually while bottom-quartile funds can destroy capital. In equity crowdfunding the dispersion is even greater: stated returns for real estate projects on platforms like Urbanitae or Civislend range between 9% and 13% annually according to their own blogs, but that average includes survivorship bias.
The third nuance is liquidity. 11% annual for 5 years is not the same if you can exit whenever you want as if your money is locked for the period. The real return adjusted for liquidity of an SME investment is always lower than the headline figure.
Why do most investors ignore this asset class?
Three reasons, and all practical.
- Illiquidity. You cannot sell on a Friday afternoon. The dominant financial culture values liquidity as a synonym of safety, even though that liquidity has its own hidden cost in the form of emotional volatility.
- Information asymmetry. Analysing an SME requires understanding its income statement, market, team and succession. It's work. The stock market, in contrast, externalises that analysis to market prices.
- Cultural friction. In Spain talking about business succession is still taboo, as documented by El Economista in an article from February 2026. Owners do not want to sell; retail investors do not know they can buy.
This combination is exactly what creates opportunity. Where there is friction, there is return for those who learn to operate with it.
How to start sensibly: 4 basic rules
If, after reading this, you are still interested, these are the rules any retail investor should follow before putting a euro into an SME.
- Verify regulation. Any crowdfunding platform operating in Spain must be registered with the CNMV. Check the register before transferring funds.
- Diversify by number of deals, not amount. Ten deals of €500 is better than one of €5,000. Dispersion of results in SMEs is brutal.
- Match the time horizon. Do not put in money you will need in 5 years. Illiquidity is the rule, not the exception.
- Understand taxation. Capital gains from selling shares are taxed in the savings base of the IRPF (between 19% and 28% in 2026 by brackets). Crowdlending interest is taxed the same. Some investments in start-ups have specific deductions; consult a tax advisor before closing a deal.
How to invest money in SMEs is not a shortcut to riches. It is an asset class with its own logic, largely ignored by Spanish retail investors and which, because of the country's demographic dynamics, will open real opportunities in the coming decade. The question is not whether this asset class deserves a place in your portfolio. The question is what percentage and by which route.
What is the difference between investing and saving?
Investing seeks to grow capital by accepting risk, while saving aims to preserve capital with low risk and high availability. Saving prioritises protection and liquidity; investing prioritises expected return over long horizons by accepting volatility and the possibility of loss.
What is an index fund and how does it work?
An index fund replicates the composition and performance of a market index by holding a representative basket of securities. It offers broad diversification, low fees and passive management, making it a common option for beginners seeking diversified, low-cost access to public markets.
What is compound interest in investing?
Compound interest is the process by which returns themselves generate returns; that is, you earn on both the principal and prior returns. Compounded growth can significantly increase wealth over the long term, which is why time in the market matters.
A final contextual note. The European crowdfunding regulatory framework matured significantly after 2021, when the EU approved Regulation 2020/1503, which harmonised rules between member states and created a single European licence for providers of participative financing services. That regulation is part of the reason Spanish platforms can operate legally across the eurozone and why some French and Dutch operators have entered Spain. For a retail investor, the practical implication is that the regulatory floor is higher than before, but due diligence on the specific platform and specific deal still matters more than the mere regulatory label.
For an overview of how crowdfunding works from a conceptual and regulatory standpoint you can consult the Wikipedia entry on crowdfunding, and for the structural context of Spanish family business, the reports of the Instituto de la Empresa Familiar are the reference.
If you want to see complementary options, such as investing 100 euros a month in individual vehicles, there are practical guides that can help you combine saving and investing gradually.