Startup Fundraising Guide: From Pre-Seed to Series A

Startup fundraising is the process of selling a share of your company, or the right to a future share, to investors in exchange for cash that lets you grow faster than revenue alone would allow. A good fundraise starts with a clear plan for what the money buys, the right instrument for your stage, a short list of suitable investors and a disciplined process that creates momentum. Everything else, from the pitch deck to the term sheet, supports those four things.

This guide walks through the whole journey from pre-seed to Series A. It links out to deeper articles on valuation, dilution, instruments and pitch decks so you can go further where you need to.

Do you need to raise at all?

Outside capital is a tool, not a milestone. Before you build a pitch deck, answer three questions honestly:

1. Is the business capable of venture-scale outcomes? Venture investors need a small number of very large winners to make their funds work. A profitable agency or a niche software tool can be an excellent business that simply does not fit this model.
2. What will the money change? "More runway" is not an answer. "Hire two engineers to ship the enterprise features three pilot customers asked for" is.
3. What are the alternatives? Revenue, customer prepayments, grants, revenue-based financing and loans all cost less ownership than equity. Some are a better fit for early or capital-light companies.

If you decide to raise, know what you are giving up. Every equity round dilutes the founders. Use the funding dilution calculator to see what two or three rounds do to your ownership before you commit to a path.

The funding stages

Stage names are conventions, not rules. The table below describes what each stage is commonly meant to fund and what investors usually want to see. Expectations vary by market, sector and the general funding climate.

Stage	Typical purpose	What investors look for	Common instruments
Friends, family, founders	Get from idea to first prototype	Trust in the founder	Personal savings, small loans, SAFEs
Pre-seed	Build an MVP, find first users	Strong team, sharp problem insight, early signals	SAFEs, convertible notes, small priced rounds
Seed	Reach repeatable traction	Growing usage or revenue, early retention, a credible market	Priced equity or larger SAFEs
Series A	Scale a model that works	Evidence of product-market fit and a repeatable acquisition channel	Priced preferred equity
Series B and later	Expand markets, teams, products	Efficient growth, strong unit economics	Priced preferred equity, sometimes debt

The common thread: each round should buy you the evidence you need to raise the next one, or to stop needing outside money.

Who invests at each stage

Different investors write different cheques, move at different speeds and expect different things.

Angel investors

Individuals investing their own money. Angels often decide quickly, can bring relevant experience and introductions, and are common at pre-seed. Expect smaller cheques and a wide range of involvement, from silent to very hands-on.

Pre-seed and seed funds

Professional funds that specialise in early rounds. They usually invest in many companies, may lead a round and set terms, and tend to have a defined process with partner meetings.

Venture capital firms

Larger funds focused on seed, Series A and beyond. They invest from a fund with a fixed lifetime, which means they need exits within a certain horizon. Understanding this explains a lot of their behaviour, including their focus on very large markets.

Accelerators

Programmes that invest a fixed amount for a fixed share or instrument, and provide structure, mentoring and a demo day. Read the terms carefully and compare the cost in ownership with what the programme actually gives you.

Strategic and corporate investors

Companies investing in startups close to their business. They can bring distribution, but may also create conflicts with future acquirers or competitors. Check for rights of first refusal or exclusivity clauses.

Non-dilutive sources

Public grants, innovation programmes and competitions exist in many countries. They take time to apply for but cost no equity. Rules and availability differ by country and region.

Choosing an instrument

Early rounds usually use one of two structures.

Priced equity round. You agree a pre-money valuation, issue new shares at a price per share, and investors become shareholders immediately. Clean and transparent, but more legal work. The arithmetic is explained in pre-money vs post-money valuation, and you can test numbers with the post-money valuation calculator.

Convertible instruments. The investor gives you money now and receives shares later, usually at the next priced round, often with a valuation cap and or discount. SAFEs and convertible notes are the two common forms. They are faster and cheaper to set up, but they hide dilution until conversion. Compare them in SAFE vs convertible note.

Which instrument is standard depends strongly on your country. In some markets, convertible instruments are the norm at pre-seed; in others, notarised priced rounds are common even for small amounts. A local startup lawyer will know what investors in your market expect.

How much to raise

Raise enough to reach the milestones that make the next round (or profitability) likely, plus a buffer for delays. A simple method:

1. List the milestones that would make the company clearly more valuable: a product release, a revenue level, a retention result, a key hire.
2. Build a month-by-month cost plan to reach them. Include salaries, tools, marketing and one-off costs.
3. Add a buffer. Plans slip; many founders add several months on top of the plan.
4. Check the result against your expected burn rate and runway.

Example: a team plans to spend €45,000 per month for the next 18 months and expects revenue to cover about €10,000 per month on average over that period. Net burn is about €35,000, so 18 months needs roughly €630,000. With a six-month buffer at the same burn (€210,000), the target is around €840,000. You can model growth in revenue and costs month by month with the startup runway calculator.

How much ownership that amount costs depends on the valuation. The trade-offs are covered in detail in how much equity to give up in a seed round.

The fundraising process, step by step

A focused process creates momentum. Investors talk to each other, and a round that seems to be moving attracts interest; a round that drags looks risky.

Step 1: Prepare the materials

• A pitch deck that tells the story in roughly 10 to 15 slides (see pitch deck structure)
• A short written summary you can paste into an email
• A financial model with monthly projections for 18 to 24 months
• A cap table showing who owns what today, fully diluted
• A basic data room: incorporation documents, key contracts, IP assignments, team agreements

Step 2: Build a target list

Research investors who actually invest at your stage, in your sector and in your geography. Note the typical cheque size and whether they lead rounds. A list of a few dozen well-matched names beats hundreds of random ones.

Step 3: Get warm introductions

Introductions from founders they have backed, other investors or trusted operators usually get more attention than cold emails. Cold outreach can still work when it is short, specific and shows why this investor fits.

Step 4: Run meetings in a tight window

Try to schedule first meetings within a few weeks of each other. This lets you compare interest and terms at the same time instead of negotiating with one investor while others have not yet started.

Step 5: Handle due diligence

Interested investors will check your numbers, your customers, your legal setup and your team. Answer quickly and consistently. Gaps in IP assignments or unclear founder agreements are common delays that you can fix before you start.

Step 6: Negotiate the term sheet

The term sheet sets the economics (valuation, amount, option pool) and the control terms (board seats, investor consent rights, liquidation preference). Valuation gets the attention, but control terms and preferences can matter more in practice. Get legal advice before you sign.

Step 7: Close and communicate

Sign the final documents, receive the funds, update the cap table and tell your existing investors, team and key customers. Then send regular investor updates; they make the next round easier.

Fundraising readiness checklist

• You can explain the problem, the solution and why now in two sentences
• You know your monthly net burn and how many months of runway you have
• You have a milestone plan that ties the amount to concrete outcomes
• Your cap table is up to date and you know your fully diluted share count
• Founder shares have vesting in place (see founder vesting schedule)
• IP created by founders and contractors is assigned to the company
• You have a target list of investors matched by stage, sector and cheque size
• You have time blocked for the process without the business stalling

Common fundraising mistakes

Starting too late. If you have three months of cash left, every investor can see you need the money. You lose negotiating power and may have to accept poor terms.

Raising without a milestone plan. "We need €1 million" invites the question "for what?" Tie the amount to outcomes.

Optimising only for valuation. A high valuation with heavy liquidation preferences or broad investor vetoes can be worse than a moderate one with clean terms. It also raises the bar for your next round.

Stacking convertible instruments without modelling them. Several SAFEs or notes with different caps can convert into much more dilution than founders expected. Model the conversion before you sign the next one.

Ignoring the option pool. Investors often ask for a pool to be created before their investment, which means only existing shareholders are diluted by it. Read employee option pool explained before negotiating.

Letting the business slip. A fundraise can absorb a founder completely. If metrics stall during the process, that becomes part of the story. Decide in advance who keeps the company running.

After the round

Closing the round is the start, not the finish. Update your runway forecast with the new cash, set the budget against the milestones you pitched, and track the startup financial metrics your next investors will ask about. Send a short monthly or quarterly update to your investors with numbers, wins, problems and specific asks. Founders who communicate consistently tend to find the next fundraise less painful because their investors already know the story.

This guide is general information, not legal, tax or investment advice. Fundraising rules, securities law and tax treatment differ by country; work with a qualified lawyer and tax adviser in your jurisdiction before issuing shares or signing investment documents.