The complete guide to your first major venture round
Series A is the first significant round of venture capital financing for a startup. It typically follows a seed round and ranges from 3 million to 15 million pounds. At this stage, investors expect clear evidence of product-market fit, repeatable growth, and a credible plan for scaling. The round is led by a VC firm that usually takes a board seat.
Series A investors want to see that you have moved beyond the hypothesis stage. They expect evidence that customers want your product, that your growth engine works, and that the unit economics make sense. Specific metrics vary by industry, but common benchmarks include: MRR of 50,000 to 100,000 pounds, month-over-month growth of 10 to 20%, a clear understanding of CAC and LTV, low churn, and a team that can execute. The most important thing is a compelling story about how the next 18 months will look with their capital behind you.
Unlike seed rounds which often use SAFE notes, Series A rounds involve priced equity. The VC firm leads the round by setting a valuation and investing the largest share. Other investors (existing angels, smaller funds) may participate alongside. You will negotiate a term sheet covering the valuation, board composition, liquidation preferences, anti-dilution provisions, and other governance terms. The process from first meeting to term sheet typically takes 2 to 4 months. Due diligence and legal work add another 4 to 8 weeks. Plan for at least 6 months total.
Series A capital is for scaling what works, not for experimenting. By this stage you should know your growth channels, your ideal customer profile, and your core product. The money goes toward hiring a real team (engineering, sales, marketing), investing in proven marketing channels, improving infrastructure, and building out the product roadmap. Most Series A companies double or triple their headcount in the 12 months after closing. This is also when you typically hire your first senior leaders: a VP of Engineering, a Head of Sales, or a Head of Marketing.
Start building relationships with investors 6 to 12 months before you plan to raise. Attend events, get warm introductions, and share progress updates. When you are ready to raise, have your materials prepared: a pitch deck (10 to 12 slides), a financial model showing 3-year projections, a data room with key metrics and legal documents, and a list of 30 to 50 target investors. Run a structured process: approach investors in batches, create urgency through parallel conversations, and aim to have multiple term sheets. The worst position is having only one offer with no alternative.