Series C
Also known as Series C Round, Series C Financing
Series C is a growth-stage equity round for companies approaching profitability or an IPO window. The round typically funds category leadership, international expansion, or acquisitions rather than core product or market discovery.
In depth
Series C is the round where a company stops looking like a startup and starts looking like a business. The IPO window is in view (typically a few years out), the burn is large but rationalizable against gross margin trajectory, and the cap table is institutional all the way down. The lead investor at Series C is often not a traditional venture firm but a crossover fund, a growth-equity firm, or a sovereign-affiliated capital pool.
The economic content of Series C swings hard with macro conditions. In hot markets, headline valuations balloon and the round looks like a victory lap. In tighter markets, the same companies raise flat or down rounds with structured terms — ratchets, participating preferred, milestone-based tranches. The label is the same; the substance is not.
Round size at Series C scales with revenue and sector. A SaaS company at modest scale raising Series C lands at a different number than a capital-intensive infrastructure company at similar scale. Looking at sector-specific medians is usually more informative than the blended figure.
Why it matters
Series C is often the last stage where venture-style dilution applies. From Series D onward, dilution typically compresses further and the rounds look more like late-stage growth capital than primary equity. For founders, the cumulative dilution path matters: a company that raises every couple of years from pre-seed through Series C usually exits Series C with founders holding 15-25%.
For LPs, Series C markups are one of the cleaner signals that a venture position is converging on a real exit. A Series A position that holds through Series C without being marked down has cleared most of the survivorship risk, and benchmark data consistently shows that vintages with strong Series C markup rates produce top-quartile fund-level returns.
Worked example
A SaaS company raises a $75M Series C at $725M pre-money, $800M post-money. The existing option pool is sufficient.
Series C dilution: $75M / $800M = 9.4%
Founder ownership before: 28% (post-Series B)
Founder ownership after: 28% × (1 - 0.094) = 25.4%
Founders hold roughly 25% on a fully diluted basis after Series C, the Series C lead holds 9.4%, and earlier investors plus the option pool absorb the rest. Forward modeling at $800M post: a $5B exit returns Series C investors 6.25x and crystallizes a meaningful DPI distribution if the fund holds through to liquidity.
Frequently asked
What milestones do I need for a Series C?
Series C companies typically show substantial ARR, healthy gross margins for their model, and either profitability in sight or a clear path to it. Investors care about capital efficiency metrics (Rule of 40, payback period, net retention) alongside top-line growth. Pure growth at any cost tends to clear Series C only in the hottest sectors.
How big is a Series C?
Round sizes vary widely by sector. Software companies often raise in a broad mid-range, while capital-intensive or premium-priced sectors (currently AI infrastructure) can raise multiples of that at much higher valuations. The dispersion at Series C is wider than at any earlier stage.
How much dilution at Series C?
Series C dilution typically runs 10-15%, lower than Series A or B because round sizes grow more slowly than valuations at this stage. Founders typically hold 15-25% on a fully diluted basis after Series C, with the exact number heavily dependent on how clean each earlier round was.
Series C vs growth equity: what is the difference?
The line is fuzzy. A Series C led by a traditional venture firm with a board seat looks like venture. A Series C led by a growth-stage fund with minimal governance and a focus on secondary purchases looks like growth equity. The same company may take either structure depending on which lead clears the round.
Why are Series C valuations so dispersed?
Capital concentration in hot sectors pulls the headline median around, sometimes sharply quarter to quarter. A small number of premium-priced rounds can move the median while the typical Series C looks much like it did the previous year. Looking at sector-specific medians is usually more informative than the blended figure.