What it means
By Series B the questions change. Investors stop asking whether customers want the product and start asking how large the market really is, how efficiently the company converts spending into growth, and whether the team can run an organisation several times its current size.
Diligence is correspondingly heavier. Expect cohort analysis showing how revenue from each group of customers behaves over time, unit economics broken down by channel, a detailed sales pipeline, and reference calls with customers who have been around long enough to churn if they wanted to.
Valuations are usually anchored to a multiple of recurring revenue, adjusted for growth rate and retention. A company growing quickly with strong retention commands a materially higher multiple than one growing at the same rate while losing customers out of the back door.
The investor base shifts too. Series B rounds often bring in growth funds that write larger cheques and think in terms of the path to an eventual sale or listing, and existing investors typically take part again to protect their percentage through pro rata rights.
The failure mode at this stage is scaling something that is not yet efficient. Companies that raise a large Series B and pour it into headcount before their acquisition costs pay back reliably frequently end up cutting hard eighteen months later.
In practice
Real-world examples.
Example
A logistics software company raises a $30,000,000 Series B to expand from two countries into six, with roughly half the money committed to local sales teams and half to compliance and product localisation. The board sets a target of $40,000,000 of recurring revenue before the next raise.
Example
A direct-to-consumer skincare brand raises a $22,000,000 Series B after proving that its customer acquisition cost is recovered within seven months. The round funds inventory, a second fulfilment centre and a move into physical retail.
Example
A fintech raises a $45,000,000 Series B led by a growth fund, with existing Series A investors exercising pro rata rights to hold their percentage. The round includes a secondary component letting two early employees sell $1,000,000 of shares.
Formula
Calculation
Post-money valuation = pre-money valuation + amount raised
Revenue multiple = post-money valuation / annual recurring revenue
New ownership of an existing holder = old percentage x (pre-money / post-money)
A software company with $10,000,000 of annual recurring revenue growing at 90% a year agrees a $75,000,000 pre-money valuation and raises $25,000,000. Post-money valuation is 75,000,000 + 25,000,000 = $100,000,000, and the new investor owns 25,000,000 / 100,000,000 = 25%.
That values the business at 100,000,000 / 10,000,000 = 10 times annual recurring revenue, a figure the investor justifies by the growth rate and by net revenue retention above 110%.
Existing holders are diluted by the ratio 75,000,000 / 100,000,000 = 0.75. Founders who owned 45% now own 45% x 0.75 = 33.75%, and the Series A investor who owned 20% now owns 20% x 0.75 = 15%. That Series A investor put in $6,000,000 and now holds a stake worth 15% x 100,000,000 = $15,000,000 on paper, a 2.5 times paper return before any exit has occurred.Case study
Seen in the real world.
Vantage Meridian is an illustrative, fictional workforce scheduling platform that raised a $25,000,000 Series B at a $75,000,000 pre-money valuation on $10,000,000 of recurring revenue. The plan was to triple the sales team, open two international offices and reach $35,000,000 of revenue within two years.
Twelve months in, revenue had reached $16,000,000 rather than the $20,000,000 planned, and monthly burn had risen from $700,000 to $1,900,000 as the new offices came online. At that rate the remaining cash gave under twelve months of runway, so the board cut the smaller international office, reduced headcount by 15%, and brought burn back to $1,200,000 a month. Growth slowed to 55% but the company regained roughly nineteen months of runway and reached a Series C on its own terms.
This fictional example illustrates the central Series B risk. The money makes it possible to scale everything at once, and the discipline to scale only the parts that already pay back is what separates a strong Series B from a painful one.
Watch out
Common mistakes.
- Raising a Series B at the highest possible valuation, which sets a bar the next round has to clear and raises the odds of a down round later.
- Scaling a sales team before acquisition costs reliably pay back, so each new hire adds burn faster than they add durable revenue.
- Neglecting existing investors' pro rata rights during the raise, which sours relationships with the people most likely to support the next round.
Questions
People also ask.
What distinguishes a Series B from a Series A?
Series A funds proving a repeatable model, while Series B funds scaling one that is already working, with larger cheques and much heavier diligence on the numbers.
How much do Series B investors typically take?
Commonly 15% to 25% of the company, with the exact figure depending on the amount raised relative to the valuation.
Do earlier investors participate in a Series B?
Usually yes, because pro rata rights let them buy enough of the new round to maintain their percentage, and a lead investor reads their absence as a warning sign.
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