Every startup funding round explained — pre-seed, seed, and Series A, B, C and D+. What each stage is, how much you raise, the valuation, how much equity you give up, who invests, and the milestone you have to hit to get there.
A funding round is a startup raising capital by selling equity at a set valuation. Each round funds the company to its next milestone — and dilutes the founders a little more.
pre-seed through Series D+
idea to pre-IPO scale
typical equity given up at each raise
the bar most Series D+ rounds clear
Each round raises more money at a higher valuation than the last. The raise (bars) grows roughly 10x from pre-seed to Series D+, while post-money valuation (the line, on a log scale) climbs from single-digit millions to over $1 billion.
Directional 2026 US ranges — midpoints shown. Actual figures vary widely by sector and market.
What each round is, the typical raise and valuation, how much you give up, who writes the checks, and the milestone that unlocks it.
The very first outside money. You're turning an idea and a founding team into a working prototype — there's usually no revenue and little or no product yet. Often raised on a SAFE or convertible note rather than priced equity.
Capital to find product-market fit. You have an early product and your first users or customers; seed money buys the runway to prove people actually want what you've built and to start a repeatable way of acquiring them.
The first 'institutional' priced round. You've shown product-market fit and a repeatable go-to-market motion. Series A funds turning that proof into a real, scalable business with a built-out team.
You've built something that works — now you scale it. Series B is about pouring fuel on a proven model: expanding the team, entering new markets, and pushing growth hard with a known unit economics picture.
Capital to become (or stay) the category leader — funding new products, geographies, and sometimes acquisitions. The business is well-established, growing fast, and de-risked relative to earlier rounds.
Late-stage rounds (D, E and beyond) for companies at serious scale — often unicorns. The money funds a final growth push, extends runway toward an IPO, or lets the company stay private longer while still expanding.
| Stage | Typical raise | Post-money | Dilution | Investors | Milestone |
|---|---|---|---|---|---|
| Pre-Seed | $0.5M – $1.5M | $4M – $8M | 10% – 20% | Angels, pre-seed funds, accelerators | A founding team and a prototype or demo. |
| Seed | $2M – $5M | $10M – $18M | ~15% – 20% | Seed VCs + angels | Early product live with first real traction. |
| Series A | $8M – $18M | $40M – $70M | ~20% | Traditional VCs | Product-market fit, repeatable GTM, ~$1M–$2M ARR. |
| Series B | $20M – $40M | $150M – $250M | ~15% – 20% | Growth VCs | Clear scaling motion, ~$5M–$10M ARR. |
| Series C | $40M – $100M | $400M – $1B | ~10% – 15% | Late-stage funds, crossover investors | Market leadership and $20M+ ARR. |
| Series D+ | $100M+ | $1B+ (unicorn) | ~5% – 15% | Crossover, PE, sovereign funds | Unicorn-scale revenue, on a path to IPO or large exit. |
Directional 2026 US ranges. Real numbers vary substantially by sector, geography, and market conditions — AI and deep-tech rounds in particular often run well above these figures.
Every round buys you a milestone and costs you ~20% of your company. Raise to clear the next proof point, not to set a record valuation you'll have to grow into.
The cap table (capitalization table) is the ledger of who owns what — founders, employees, and investors — expressed as percentages of the company. Every time you sell equity in a round, you issue new shares, so everyone who already owned a slice now owns a slightly smaller slice of a (hopefully) much bigger pie. That shrinking is dilution.
If you give up roughly 20% in a priced round, founders keep about 80% of what they had before. Do that several times and the math compounds: two founders who start owning 100% might hold well under half the company by Series B once you also account for the employee option pool, which is usually topped up at each round and dilutes founders too.
That's the core trade: each round funds the company to its next milestone and raises the valuation, but it also lowers your ownership percentage. The goal is for the value of your shrinking percentage to keep going up — owning 15% of a $1B company beats owning 60% of a $5M one.
| After round | New investors take | Founders' combined stake* |
|---|---|---|
| Founding | — | 100% |
| Pre-Seed | ~15% | ~85% |
| Seed | ~18% | ~70% |
| Series A | ~20% | ~56% |
| Series B | ~18% | ~46% |
*Illustrative only. Simplified to show how ~15–20% dilution per round compounds; real cap tables also include option-pool top-ups, SAFEs that convert, and pro-rata follow-ons that change the exact figures.
Sweat equity is ownership in a company that someone earns through their work, time, and effort instead of paying for it in cash. A founder who builds the product for two years on little or no salary, a technical cofounder who joins for equity, or an advisor who takes a small stake in exchange for help are all trading sweat for equity.
It's how most startups are built before there's real money: instead of paying market salaries you can't afford, you give people a share of the upside. That stake usually vests over time — commonly four years with a one-year cliff — so ownership is earned as the work actually gets done, not granted all at once.
The trade-off mirrors cash dilution: sweat-equity grants come out of the cap table, so they dilute founders just like investor shares do. The upside is you conserve cash and align everyone around the same outcome — the company being worth more.
Startups typically raise capital in a sequence of rounds, each tied to a stage of company maturity: pre-seed (idea and prototype), seed (early product and first traction), Series A (product-market fit), Series B (scaling), Series C (market leadership) and Series D and beyond (pre-IPO scale). Each round raises more money at a higher valuation than the one before, in exchange for a slice of equity.
A Series A is usually a startup's first priced, institutional venture round. It's raised once a company has demonstrated product-market fit and a repeatable go-to-market motion — often around $1M–$2M in ARR. In 2026, US Series A rounds typically raise about $8M–$18M at a post-money valuation around $40M–$70M, led by traditional venture capital firms, with founders giving up roughly 20% of the company.
As directional 2026 US ranges (they vary widely by sector and market): pre-seed $0.5M–$1.5M, seed $2M–$5M, Series A $8M–$18M, Series B $20M–$40M, Series C $40M–$100M, and Series D+ $100M and up. AI and deep-tech companies often raise meaningfully more at each stage.
A typical priced round dilutes founders and existing shareholders by roughly 15%–25%, with about 20% being a common rule of thumb for an early round. The exact number depends on how much you raise relative to your valuation — a larger raise or a lower valuation means more dilution. Option pool top-ups at each round add additional dilution on top of the new investors' stake.
After Series D, companies can keep raising lettered rounds — Series E, F, and beyond — usually to extend runway, fund acquisitions, or stay private longer. The next major milestone is typically a liquidity event: an IPO (going public) or an acquisition. Some late-stage companies also use private secondaries to give early shareholders and employees liquidity without a full exit.
Written and maintained by Trace Cohen · @Trace_Cohen · t@nyvp.com. Ranges are directional and vary by sector and market; free to cite with attribution (CC BY 4.0).