Founders often ask how long it takes to raise a Series B, hoping for a single number they can plan around. The honest answer is that there is no reliable standard figure. The timeline depends far more on the company's readiness, the quality of its evidence and the way the process is run than on any calendar rule. What can be said with confidence is that a Series B attracts deeper scrutiny than earlier rounds, and that the companies which move fastest are usually the ones that did the slow work before they spoke to a single investor.
Why there is no standard answer
Two companies with similar revenue can have very different experiences. One arrives with clean data, a clear story about how growth converts into profit, and a shortlist of investors who already know the business. The other arrives with figures that change between the deck and the data room, an unclear use of funds, and a cold list. The first may move briskly. The second may spend months answering questions it should have answered internally.
The timeline also depends on factors outside the company's control: investor appetite for the sector, partner availability, and how many competing processes are running at the same time. Planning should therefore be built around readiness and runway, not around an assumed duration.
What a Series B investor is buying
A seed or Series A investor is largely backing a team and an early signal. A Series B investor is backing a business that should already work, and is paying a price that reflects that expectation. Series B median post money valuations on US primary rounds sit at about $140 million, the midpoint of a reported $130 to $150 million range. A typical Series B round is around $35 million, with dilution of 15% to 18%.
At those sizes, investors want to understand the mechanics of growth rather than its headline. Expect detailed questions on:
- Unit economics: customer acquisition cost, payback, gross margin and how each has moved over time.
- Retention: cohort behaviour, expansion revenue and the reasons customers leave.
- Go to market efficiency: how productive the sales team is, and whether new hires reach productivity predictably.
- Forecast credibility: whether the plan is built from evidence the company already has.
- Leadership depth: whether the team beneath the founders can scale with the business.
This is why the Series B tends to carry the most searching diligence in the $1M to $100M band. The cheque is large, the valuation assumes repeatability, and the investor needs to believe the next round or exit is reachable.
The phases of a Series B process
Rather than fixing durations to each stage, it is more useful to understand what each one requires and where it can stall.
- Preparation: building the financial model, the data room, the narrative and the investor list. This is the phase founders most often compress, and the one that most determines what follows.
- Early conversations: first meetings with investors who fit the stage, sector and cheque size. The aim is to generate genuine interest at roughly the same time across the list.
- Partner meetings and term sheets: deeper sessions with the investment committee, followed by negotiation of headline terms.
- Confirmatory diligence and closing: financial, legal, commercial and technical review, then documentation and completion.
Each phase depends on the one before. A weak preparation phase does not save time. It moves the work into diligence, where delays are more visible and more damaging to momentum.
What slows a Series B down
Most delays are predictable, and most come from inside the company.
- Inconsistent numbers: metrics that differ between the deck, the model and the data room invite a second, slower round of questions.
- An unclear use of funds: investors want to know exactly what the capital buys and which milestones it reaches before the next raise.
- A sequential process: meeting investors one at a time removes competitive tension and lets each firm set its own pace.
- Missed forecasts during the raise: a soft quarter in the middle of a process can reset conversations entirely.
- Cap table or legal complexity: unusual instruments, unresolved side agreements or messy option records extend legal diligence.
- Founder bandwidth: when the chief executive runs the raise while also running the company, both tend to slip.
A Series B is rarely slowed by a shortage of investors. It is slowed by questions the company could have answered before the process began.
How market conditions affect timing
Headline funding figures can be misleading for a company raising a conventional Series B. Capital has concentrated heavily in a small number of very large rounds and in one theme. AI focused companies captured more than 70% of global venture capital in Q2 2026. Excluding the 16 largest rounds, Q2 2026 resembled a market of roughly $96 billion.
For a non AI business, that concentration means investor attention is more selective, and the case for the company must stand on its own fundamentals. For an AI business, it means more competition for investor time and closer questioning on defensibility and margins. In Europe, the later stages have been more active. European late stage funding grew 90% year over year in Q2 2026, reaching $12.1 billion. Our latest Technology Capital Markets Review sets out the wider picture.
Pairing venture debt to extend runway
Because the timeline is uncertain, runway matters more than any plan. Venture debt has become a common way to create room, either alongside the equity round or ahead of it. US venture debt reached an all time record of $68.8 billion in 2025. Roughly 60% of US venture debt financings were at late or venture growth stage.
There are two common uses at this point in a company's life. Venture debt is commonly used for runway extension by post Series A and B companies 12 to 18 months from a milestone. It is also used for growth without dilution by companies with efficient ARR of $5 million or more. When raised alongside an equity round, venture debt used as a round complement is typically sized at 20% to 35% of an equity round.
Debt is not free money. Covenants, warrants and repayment schedules need to fit the plan, and borrowing against an unrealistic forecast simply moves the problem. Used carefully, though, it can let a company reach a stronger milestone before raising equity, or remove the pressure to accept the first term sheet. Our guide on choosing between venture debt and equity covers the trade offs in more detail.
What founders can control
Founders cannot set investor schedules or market sentiment, but they control most of what determines pace.
- Start early: begin preparation while there is enough runway to walk away from weak terms.
- Build the data room first: have financials, cohorts, contracts and the cap table ready before the first meeting.
- Reconcile every number: one source of truth for every metric, used consistently everywhere.
- Warm the list in advance: relationships with likely lead investors should exist long before the raise.
- Run a parallel process: meet the right investors in a compressed window so that interest develops together.
- Protect the operating plan: appoint someone to keep the business on forecast while the founders raise.
- Decide on debt early: know whether a debt facility will sit alongside the round before terms are discussed.
How Malahide Partners helps
We work with technology companies raising equity and debt across the $1M to $100M band. For a Series B, that means helping management prepare the model, narrative and data room, identify and approach the investors best suited to the business, and run a disciplined process through term sheets and diligence to completion. Where it fits the plan, we also help companies assess and structure venture debt alongside or ahead of an equity round.
You can read more about our equity advisory and debt advisory work. If you are planning a Series B and want a candid view of your readiness, book a call.
Frequently asked questions
How long does it take to raise a Series B?
There is no reliable standard figure. The timeline depends mainly on how well prepared the company is, the consistency of its data and how the process is run, and a Series B tends to involve deeper diligence than earlier rounds.
What slows down a Series B raise?
The most common causes are inconsistent metrics, an unclear use of funds, investor meetings run one at a time, missed forecasts during the raise and complex cap table or legal issues. Most of these can be addressed before the process starts.
When should a company start preparing for a Series B?
Preparation should begin while the company still has enough runway to walk away from weak terms. Building the data room, reconciling metrics and warming relationships with likely lead investors in advance shortens the process once it begins.
Can venture debt help during a Series B?
Yes. Venture debt can extend runway so the company reaches a stronger milestone before raising equity, or it can sit alongside the equity round to reduce dilution, provided the covenants and repayment terms fit a realistic plan.
About Malahide Partners. Malahide Partners is a capital advisory firm serving technology companies exclusively, headquartered at 124 City Road, London. The firm advises founders, boards and sponsors on equity and debt raises between $1M and $100M and on M&A, working with family offices, funds and institutional investors across Europe, the GCC and North America. Malahide Partners represents the company and runs the process end to end; it is not an investor or a fund manager.
Media enquiries. enquiries@malahidepartners.com
Sources. Crunchbase data, July 2026, as cited in the Malahide Partners H1 2026 Technology Capital Markets Review; Runway Growth Capital and PitchBook, 2025-2026 Venture Debt Review, as cited in the Malahide Partners H1 2026 Technology Capital Markets Review; Malahide Partners, H1 2026 Technology Capital Markets Review; Carta, State of Private Markets, as cited in the Malahide Partners H1 2026 Technology Capital Markets Review.
