Pre-Seed vs Seed Funding: What Actually Separates the Two Rounds

"Are we raising pre-seed or seed?" sounds like a labelling question. It isn't. The answer decides who you pitch, how much you can reasonably ask for, what evidence investors expect, and how much of the company you'll give up.

The lines have moved a lot over the past decade. Rounds that were called seed in 2015 are often called pre-seed now, and a "seed" round in some markets looks like an old Series A. So instead of fixed definitions, this guide looks at the signals investors use to decide which stage you're at, and what that means for how you raise.

The short answer

Pre-seed is money to find out whether the idea works. Seed is money to show that it works repeatedly and to start building the machine that will grow it.

At pre-seed, investors are mainly backing the founders and the size of the problem. At seed, they still care about the team, but they expect some proof from the market: users who come back, customers who pay, or a technical milestone that removes a big risk.

Round sizes vary so much by country, sector and year that any specific number would be misleading. As a rough guide, pre-seed rounds are usually measured in hundreds of thousands, and seed rounds in low single-digit millions. Deep tech and biotech raise more at each stage because the work is more expensive. Check recent rounds in your own sector and region before settling on a target.

What pre-seed investors want to see

A pre-seed investor knows the product may change completely. They're betting on something more durable.

Founders who understand the problem better than anyone

The strongest pre-seed pitches usually start with the founders. Why are you the people to solve this? Maybe you spent years inside the industry and saw the problem from the inside. Maybe you built something similar before. Maybe you've interviewed 80 potential customers and can describe their workflow in more detail than they can.

A problem that's big and painful

Investors want to know that if this works, it can become very large. That doesn't mean a top-down market size slide with a trillion-dollar figure. It means a clear explanation of who has the problem, how much it costs them today, and how many of them there are.

Some sign of pull

You don't need revenue at pre-seed, but you need something that shows people care. Good examples include a waitlist with real engagement, signed letters of intent, unpaid pilots that turned into weekly usage, or a prototype people keep using even though it's rough.

What seed investors want to see

Seed investors move the bar from "this could work" to "this is starting to work." The questions shift accordingly.

Repeatable demand

One enthusiastic customer is a pilot. Ten customers who look alike, found you in similar ways and use the product in the same way is the beginning of a market. Seed investors want to see that pattern forming.

Retention

For consumer products, that means users returning week after week. For business software, it means customers renewing, expanding or at least using the product every day. Retention is often more persuasive than raw growth, because growth can be bought and retention can't.

A believable plan for the money

At seed you're expected to explain what the round buys. A typical answer: "This funds us for 22 months. We'll hire two engineers and our first salesperson, and we expect to reach the revenue and retention numbers that a Series A investor in our category looks for." Read our guide on what VCs look for in a Series A to work backwards from that target.

How the two rounds are structured

Pre-seed rounds are mostly raised on SAFEs or convertible notes. There's no agreed price per share. Instead, investors get the right to convert into equity at the next priced round, usually with a valuation cap and sometimes a discount. It's quick and cheap to paper.

Seed rounds are split. Many are still raised on SAFEs, especially in the US. Others, particularly larger rounds with an institutional lead, are priced equity rounds with a formal valuation, a new class of preferred shares, and often a board seat for the lead investor. A priced round costs more in legal fees and takes longer, but it gives everyone certainty about ownership.

Dilution at each stage

Rough norms help you sense-check offers. Many founders sell something in the region of 10% to 15% at pre-seed and 15% to 25% at seed. The exact figure depends on how much you raise relative to your valuation, and on how competitive your round is.

In practice the option pool usually takes another slice, often created or topped up just before the seed or Series A. Factor it in early. Our guide to seed equity walks through the full calculation.

How to tell which round you're actually raising

Ask yourself these questions honestly:

1. Do you have customers who pay, or users who come back without being asked? If not, you're pre-seed, whatever you call it.
2. Could you explain how a typical customer found you, and how you'd find a hundred more? If you can't yet, you're likely pre-seed.
3. Do you need the money mostly to build, or mostly to sell? Building points to pre-seed. Selling points to seed.
4. Would a seed fund in your sector look at your numbers and recognise them as typical of their portfolio companies at entry? If you're unsure, ask one. Many will tell you plainly.

Calling a pre-seed round a seed round rarely helps. Seed investors will measure you against seed-stage benchmarks and you'll come up short. Pitching it honestly as pre-seed puts you in front of investors who are comfortable with the risk you actually carry.

Who to pitch for each round

Pre-seed

• Angels with experience in your industry. See our guide on how to find angel investors.
• Dedicated pre-seed funds. These are often small funds run by one or two partners who write the first institutional cheque.
• Accelerators, which trade a small amount of capital and a programme for equity.
• Friends and family, with the caveat that they should only invest money they can afford to lose.

Seed

• Seed funds that lead rounds and take a board seat or observer role.
• Multi-stage VCs with seed programmes. They can be strong partners, but be aware that if they don't follow on in your Series A, other investors may read that as a negative signal.
• Angel groups and syndicates to fill out the round around a lead.
• Your pre-seed investors, who may take their pro rata.

The best way to find seed investors who fit is to look at who led seed rounds for companies similar to yours in the last year or two. Our guide on building an investor list shows how to do that methodically.

A note on "post-seed" and "seed extensions"

You'll hear the terms post-seed, seed-plus and seed extension. They usually describe a company that has raised a seed round but isn't yet ready for Series A. That's not unusual, and it's not necessarily a bad sign, but investors will want to know why the original seed money didn't get you to Series A metrics and what will be different this time. Have a clear, specific answer.

The bottom line

Pre-seed is for founders with a sharp insight and early signs of pull. Seed is for founders with early proof and a plan to scale it. Be honest with yourself about which one you are, raise enough to reach the next stage's milestones with some margin, and pitch the investors who specialise in exactly that stage.