¿Qué es el capital semilla? ¡Financia tu empresa!

What Is Seed Capital and How to Raise It for Your Startup

Seed capital isn’t free money. It means selling part of your company at the point when it’s worth least, in exchange for the cash needed to prove it can be worth far more. Understanding that trade before signing is what separates a round that propels a startup from one that leaves the founders with a sliver of equity before the second round even starts.

This guide explains what seed capital is, what it’s used for, how dilution and valuation work with a worked example, where seed money comes from in Europe, the instruments used to raise it, and which public programmes fund you without taking equity. Nothing here is personalised financial or legal advice.

What is seed capital

What seed capital is

Seed capital, also called seed funding or a seed round, is the first outside investment a company receives at its earliest stage. Typically an investor puts in money in exchange for a percentage of the company, before there’s a validated business model or steady revenue — so the bet rests mainly on the team, the problem being solved and early signs of traction.

Two moments are worth separating. Pre-seed funds the idea and prototype, almost always from personal savings and people close to the founders. Seed comes once there’s a basic product and first users, and its job is to prove the model works before raising a larger round.

What seed capital is used for

Money from a seed round has a specific purpose: reaching the next milestone that makes the next round credible. It typically goes into finishing the minimum viable product, hiring the first key people, validating the market with real customers, protecting intellectual property (trademarks, patents) and funding the first customer acquisition efforts.

What it shouldn’t fund is spending without a measurable goal. A seed investor will ask what their money will achieve and over what timeframe; the strongest answer is a 12-18 month plan with concrete milestones (users, revenue, retention) that justify a higher valuation in the next round.

What it costs: dilution and valuation

The key question isn’t how much money you raise, but what share of the company you give away for it. That depends on valuation. Pre-money valuation is what the company is worth before the investment; post-money is what it’s worth right after, adding the new money.

An example: if a startup is valued at €400,000 pre-money and raises €100,000, post-money valuation is €500,000 and the investor owns 20% (100,000 / 500,000). The founders go from 100% to 80%. If they give up another 20% in the next round, they’re down to 64%. That’s why each round’s dilution matters so much: at seed stage it typically lands between 10% and 25%, and accepting heavy dilution too early leaves little room for later rounds.

Where seed capital comes from in Europe

The first money almost always comes from the founders themselves and their close circle — what the industry calls “friends, family and fools”. It’s fast and involves little negotiation, but it’s worth formalising in writing just as you would with an outside investor, to avoid conflict whether the company grows or fails.

Business angels are the archetypal seed investor: individuals who invest their own money and often bring sector experience and contacts. How they work and what they look for is covered in the guide on what an angel investor is. Before committing, both angels and seed funds sift through their deal flow, which is why standing out early matters. Accelerators combine a small investment with mentoring and networking over a programme lasting several months, in exchange for a modest stake.

Investment crowdfunding lets you raise from many small investors through authorised platforms. Since 2021 it’s been governed across the EU by the European Crowdfunding Service Providers Regulation, which allows up to €5 million per project over 12 months and lets a platform licensed in one member state operate across the bloc.

The instruments used to raise a seed round

The most direct route is a priced equity round: the company issues new shares that the investor buys at an agreed valuation. It’s clear, but setting a price is hard when the company barely has metrics, and in many European countries it involves notarial formalities.

That’s why instruments that defer valuation are common. A convertible note is money that converts into shares at the next round, usually at a discount to that round’s price or subject to a valuation cap. The SAFE, created by Y Combinator in 2013, follows the same logic without technically being debt. Each country has adapted these to local company law — France’s BSA AIR is one example — so it’s worth having them reviewed by a specialist lawyer.

Public funding that doesn’t take equity

Alongside or before a private round, public funding can avoid diluting the founders. At EU level, the European Innovation Council’s Accelerator programme combines grants and equity for deep-tech startups. Nationally, agencies such as ENISA in Spain, Bpifrance in France and Invitalia in Italy offer participative loans, grants or subsidised financing for early-stage innovative companies.

These routes don’t replace private investment, but they complement it: arriving at a seed round with public financing already secured strengthens your negotiating position and reduces the dilution needed.

How to prepare before asking for seed capital

A seed investor weighs three things: team, market and traction. Arriving with a minimum product in real users’ hands, metrics however small (monthly growth, retention, first revenue) and a clear use-of-funds plan carries more weight than any pitch deck. It also pays to have the basics in order: a signed shareholders’ agreement, intellectual property owned by the company, and business finances kept separate from personal ones from day one — something a Bitsa prepaid card can help with before a business bank account is in place.

Frequently asked questions about seed capital

How much seed capital do startups usually raise?

It varies widely by sector and country, from tens of thousands of euros in angel rounds to a million or more in seed rounds led by specialist funds. What matters is raising enough to reach the next milestone within 12 to 18 months.

What percentage of the company is given up in a seed round?

Typically between 10% and 25%, depending on the agreed valuation and the amount raised. Giving up too much too early leaves little room for later rounds.

How can I raise seed capital without giving up equity?

Through non-dilutive public funding, such as national participative loans or grants and the EIC Accelerator, or through reward crowdfunding, where you pre-sell products rather than shares.

What’s the difference between a convertible note and a priced round?

A priced round sets the valuation now and issues shares; a convertible note defers valuation to the next round and converts into shares then, usually with a discount or valuation cap.

Do investors get tax benefits for investing in startups?

In several European countries, yes: Spain, France and Italy all offer income tax relief for investing in young or innovative companies, subject to conditions such as minimum holding periods. The details vary by country.