Submit your startup on Round Funded to get matched with investors as you plan your series B funding. At this stage, investors look for evidence that a working growth engine can expand without losing efficiency.
What does series B funding help you accomplish?
Series B is generally a priced financing round intended to help a company grow beyond the scale reached after Series A. The focus is not simply on whether customers want the product. Investors want to understand whether the company can repeat its growth model with more resources and maintain sound economics as it does so.
A new investor often leads the round and sets its terms. Existing Series A investors may also invest again to maintain their ownership. The amount you seek should connect to a specific expansion plan, such as growing customer acquisition or sales capacity, and should be supported by operating evidence.
This distinguishes Series B from Series A. In Series A, the company is working to show that a growth engine can function. At Series B, the central question is whether that engine can operate efficiently at greater scale. Revenue growth matters, but it does not answer the efficiency question on its own.
How much can you raise in a Series B?
Published 2026 benchmarks provide context, but they do not establish a standard amount or valuation for every company. One stage comparison puts Series B raises at $23M to $40M, post-money valuations at $165M to $191M, and dilution at 12% to 13%.
Other reports use different datasets and measures:
- Carta’s Q2 2026 median was $23.3M raised at a $166.2M post-money valuation, with 13.4% dilution.
- Carta’s software benchmark showed a $25M round at a $191M post-money valuation, with 12% sold.
- PitchBook-NVCA reported a $40M median Series B deal in H1 2026, on a $188.3M median pre-money valuation.
These figures are not directly interchangeable. Some report pre-money valuations, while others report post-money valuations, and each draws on a different dataset. Treat them as reference points, not as a price you can assume for your round.
Your company’s financing plan, evidence, and investor interest shape the terms. Instead of choosing an ask by copying a benchmark, work backward from the expansion plan: what the capital will fund, what that spending is expected to change, and which metrics will show whether the plan is working.
Which metrics do Series B investors examine?
Investors look beyond topline growth to the operating details behind it. They want to know whether customer acquisition and sales remain productive as the company spends more, and whether customer economics hold across cohorts and channels.
Expect questions about:
- CAC payback: How long it takes to recover customer acquisition costs, and whether that period remains sustainable.
- Sales productivity: Whether the sales organization produces results efficiently as it grows.
- Cohort economics: How customer value and acquisition economics vary among cohorts and channels.
- Go-to-market repeatability: Whether the sales motion works beyond founder-led selling.
- Growth efficiency: Whether acquisition and sales efficiency persist as spending increases.
For software companies, $5M to $15M in ARR is common at this stage, but that range is not a pass-or-fail threshold. Revenue needs context. If acquisition costs rise or cohort economics weaken, investors may want to understand why growth is becoming less efficient.
Prepare to show what the metrics say, including where performance varies. Connect your assumptions to observed results, and be clear about what additional capital is meant to change. A credible plan explains both the expected growth and the evidence that supports it.
How can you prepare for a Series B process?
Start by making the financing plan specific. Identify which parts of the growth engine the raise will support, and connect planned spending to measurable outcomes. For example, explain how additional sales capacity or customer acquisition supports expansion, then show the operating evidence that informs those assumptions.
Organize your diligence materials around the questions investors are likely to ask. Present revenue alongside relevant efficiency measures, and make cohort and channel differences understandable. If the sales motion still depends on founder-led selling, distinguish what has been demonstrated from what the company expects to scale.
Avoid treating a published valuation or dilution figure as a promise. The reported medians vary, and the right financing terms depend on the company and its context. Use benchmarks to inform your preparation, while grounding your ask in the business plan and supporting evidence.
Build an investor list that fits your company and raise. Round Funded covers 60,000+ active VCs, angels, family offices, and accelerators, searchable by stage, industry, geography, and check size. Investor filters include recent activity, with a check in roughly the last 6 months, and verified emails.
Prepare materials that are easy to review. Round Funded’s Data Room lets you put your deck, traction, team, and ask on one link. It is free to build and share on every plan. Round+ adds per-investor tracked links and engagement analytics, including views, deck opens, and meeting clicks.
For outreach, Round Funded’s AI drafts personalized emails and follow-ups for each investor. Messages go out from your own Gmail, so replies land in your inbox and the thread belongs to you. The fundraising pipeline keeps investors, stages, and next steps in one place, helping you organize the process.
What mistakes can weaken a Series B raise?
A common risk is increasing spending faster than the unit economics can support. Strong headline growth may be less persuasive if acquisition costs are rising, payback is stretching, or sales productivity is declining as the team expands.
Other preparation gaps include:
- Emphasizing revenue growth without explaining channel-level economics.
- Assuming founder-led sales demonstrate that a larger sales team will be productive.
- Describing expansion plans without linking them to efficiency evidence.
- Treating a market benchmark as a guaranteed valuation.
- Contacting investors without checking whether their stage, sector, geography, and check size fit.
Address weaknesses directly rather than relying on claims the data cannot support. Explain what is working, where efficiency differs, and how the proposed spending relates to the plan. Investors need to assess the business behind the growth narrative.
How Round Funded helps Series B founders
- Submit your startup on Round Funded to share your startup details and get matched with investors.
- Search investors by stage, industry, geography, and check size to find potential fits for your raise.
- Organize investors, fundraising stages, and next steps in the fundraising pipeline.
- Build a Data Room with your deck, traction, team, and ask, then share it through one link.
- Use AI-drafted personalized outreach and follow-ups sent from your Gmail, with replies landing in your inbox.
Frequently Asked Questions
What is Series B funding used for?
Series B typically finances expansion of a go-to-market engine that already works. The company aims to grow at greater scale while showing that its economics can support that growth.
How much do companies raise in a Series B?
Reported 2026 benchmarks vary. One comparison lists $23M to $40M, Carta’s Q2 2026 median was $23.3M, and PitchBook-NVCA reported a $40M median deal in H1 2026. These are reference points, not a guaranteed amount.
What metrics matter most to Series B investors?
Investors examine CAC payback, sales productivity, cohort economics, repeatability beyond founder-led selling, and whether growth efficiency holds as spending rises.
What is common ARR for a software Series B?
The common range is $5M to $15M in ARR. It is context rather than a strict threshold, and investors consider efficiency alongside revenue.
How much dilution is typical at Series B?
Carta’s Q2 2026 median Series B dilution was 13.4%. A separate 2026 comparison lists 12% to 13%. Actual dilution depends on valuation and round terms.
How does Series B differ from Series A?
Series A is focused on showing that a growth engine can work. Series B asks whether the same engine can expand efficiently, with closer attention to customer acquisition, cohort economics, and sales productivity.