Updated · 2 min read
Seed vs Series A funding: what's the difference?
What Series A funding is, how it differs from a seed round in size, investors, valuation and milestones, and when a startup is ready to raise a Series A.
Seed and Series A are the first two institutional rounds most venture-backed startups raise. They fund different jobs: seed money is for finding product-market fit, and Series A money is for scaling what already works.
What is Series A funding?
A Series A is usually the first priced round led by a venture capital firm, raised once a startup has evidence that its product sells repeatably. The company issues Series A preferred shares, the lead investor typically joins the board, and the money goes into growing the team, sales and marketing.
Seed vs Series A at a glance
| Seed | Series A | |
|---|---|---|
| Purpose | Find product-market fit | Scale a working model |
| Typical lead | Seed fund or angels | Venture capital firm |
| Structure | Often SAFE or convertible note | Priced equity round |
| What investors check | Team, market, early signals | Repeatable growth, unit economics |
| Board changes | Rare | Lead usually takes a seat |
| Round size | Smaller | Several times larger |
Exact amounts vary by market, sector and year, so compare against recent rounds in your own space. The Sync Report lists recent seed and Series A rounds by sector.
What investors expect before a Series A
- Repeatable growth. Revenue or usage growing month over month, from more than a handful of customers.
- Retention. Customers who stay and expand, not just sign up.
- Unit economics that can work. A believable path to making more from a customer than it costs to acquire and serve them.
- A plan for the money. Clear hiring and growth plans that turn the round into the milestones for the next one.
Who invests at each stage
Seed rounds are led by seed funds, angels and accelerators. Series A rounds are mostly led by venture capital firms with larger funds. Some firms invest at both stages. Browse seed investors and early-stage investors to see who focuses where.
When to raise a Series A
Raise when your metrics tell a growth story that a Series A investor can underwrite, and while you still have 6 to 9 months of runway, so you are not forced to accept the first offer. If your growth isn't there yet, a seed extension or bridge round can buy time to hit the milestones.
Related guides
Questions
What is Series A funding?
Series A is usually a startup's first priced round led by a venture capital firm, raised once the company has repeatable growth. The money is used to scale the team, sales and marketing.
What is the difference between seed and Series A?
Seed funding pays for finding product-market fit and is often raised on SAFEs from seed funds and angels. Series A is a larger priced round, usually led by a VC firm, to scale a model that already works.
When should a startup raise a Series A?
When it has repeatable revenue or usage growth, good retention and believable unit economics, ideally with 6 to 9 months of runway left so the raise isn't rushed.
Find investors that match your stage, sector and region, with partner contacts.
Browse investors