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Investors expect proof that your pipeline is repeatable, not lucky. Before a Series A, show at least one channel that produces qualified pipeline on a schedule, a defined ICP, and early CAC and retention data. Before a Series B, show the same engine working across several channels, with CAC payback, sales efficiency, and net revenue retention holding up as you spend more.
By Peter Geisheker
Key facts
- Only 24% of startups that raised a seed round in 2022 had reached Series A as of late 2025, according to Carta.
- The median gap between seed and Series A is two years, and 2.1 years between Series A and Series B, per Carta’s State of Private Markets Q1 2026.
- Bessemer Venture Partners advises a CAC payback target under 12 months for SMB, under 18 months for mid-market, and under 24 months for enterprise (Bessemer, Scaling to $100 Million).
- ICONIQ reports that top quartile software companies have historically kept a net magic number above 1.0x, meaning new revenue exceeds sales and marketing spend (ICONIQ, The ICONIQ Enterprise Five).
- The Geisheker Group’s two partners, Michael Pecora and I, have led 300+ strategy sessions with CEOs.
Why investors now diligence your go-to-market, not just your growth
Growth gets you the meeting. Go-to-market data decides whether it looks durable. Rounds take longer to close and fewer companies make it through, so investors have time to look under the hood. Carta’s Q1 2026 report puts the median company raising a Series A at 2.8 years old, which means investors expect a longer operating history and a cleaner set of numbers than they did a few years ago.
What they are testing is simple: if they give you money to spend on sales and marketing, will it turn into revenue at a predictable rate? Every metric below is a way of answering that one question. If you need a primer on the role itself first, see what a fractional CMO is.
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The eight pieces of go-to-market evidence investors look for
- Repeatable pipeline sources. Which channels produce qualified pipeline, how much each produces per month, and whether that output is stable or spiky.
- CAC and CAC payback. Fully loaded sales and marketing cost to acquire a customer, and how many months of gross margin it takes to earn that cost back.
- Sales efficiency or magic number. Net new ARR in a quarter divided by sales and marketing spend in the prior quarter. It shows whether more spend produces proportionally more revenue.
- Conversion rates through the funnel. Lead to qualified opportunity, opportunity to proposal, proposal to close. Investors use these to check whether your pipeline forecast is believable.
- Win rates and sales cycle. Win rate by segment and competitor, and median days from opportunity to close.
- Net revenue retention. Whether existing customers grow, hold, or shrink.
- Channel concentration risk. How much of pipeline depends on one channel, one partner, or the founder personally. Concentration is a discount on the multiple.
- ICP clarity. A written ideal customer profile backed by win and retention data, not opinion. Investors want to see that your best customers look alike and that you can find more of them.
The metrics table: what investors want to see and how to prepare it
| Metric | What investors want to see (benchmark and whose data) | How to prepare it |
|---|---|---|
| Repeatable pipeline sources | At least one channel with a steady monthly trend at Series A; two or more at Series B. No public benchmark; investors judge consistency from your own data. | Tag every opportunity with an original source in the CRM. Build a 12 to 24 month chart of qualified pipeline by source. |
| CAC payback | Under 12 months (SMB), under 18 (mid-market), under 24 (enterprise), per Bessemer. Bessemer found the average in the $1M to $10M ARR range was 15 months. | Pull fully loaded sales and marketing cost (salaries, tools, agencies, ad spend). Divide by new customers, then by monthly gross margin per customer. Show it by quarter and by segment. |
| Magic number (sales efficiency) | Top quartile net magic number above 1.0x, per ICONIQ. For comparison, the KeyBanc Capital Markets and Sapphire Ventures survey (December 2023 edition) reported gross and net magic numbers of 0.7 and 0.5 for 2022. | Calculate quarterly using finance’s numbers, not marketing’s. Show at least four quarters so the trend is visible. |
| Funnel conversion rates | Stable or improving stage-to-stage rates. No single public benchmark fits every motion; investors compare your rates over time and against your forecast. | Define each stage in writing. Report cohort conversion (by month of entry), not snapshot ratios. |
| Win rate and sales cycle | Consistent win rates in your core segment and a cycle that is not lengthening as deal sizes grow. Judged against your own history. | Report win rate on qualified opportunities only. Show median days to close by segment and deal size. |
| Net revenue retention | ICONIQ reports NDR settled in the ~110 to 120% range in 2025. Bessemer found average net retention of 140% at $1M to $10M ARR and gross retention relatively consistent at 85 to 90% across ARR ranges. | Build annual cohorts. Separate expansion, contraction, and churn. Reconcile to the general ledger. |
| Channel concentration | No single channel, partner, or founder relationship that would take out most of pipeline if it stopped. Judgment call, not a published benchmark. | Show pipeline share by source and by person. If one dominates, show the plan and early results for the next channel. |
| ICP clarity | A defined ICP where win rate, deal size, and retention are visibly better than for non-ICP accounts. | Segment closed-won and churned customers by firmographics. Put the ICP on one page with the data that supports it. |
Two notes on the benchmarks. First, they come from different samples and years: Bessemer’s figures are from 2021 and ICONIQ’s from its 2025 scorecard, so use them as reference points, not pass/fail lines. Second, the 2025 KeyBanc Capital Markets and Sapphire Ventures SaaS Survey found SaaS companies maintaining gross retention near 90% and net retention above 100%. Treat that as typical, not exceptional. A raise needs you to look better than the median on at least one or two of these lines.
How the bar differs between Series A and Series B
The metrics are mostly the same. What changes is how much history investors expect and how much of the engine must already work without the founder.
| Area | Before a Series A | Before a Series B |
|---|---|---|
| Pipeline sources | One channel that works on repeat, even if founder-led sales still closes most deals | Several channels producing, with sales closing without the founder in the room |
| CAC and payback | Blended CAC is acceptable; trend matters more than the level | CAC and payback by channel and by segment, holding steady as spend rises |
| Sales efficiency | Early signal from a few quarters | Four or more quarters of magic number, with a credible plan for spend |
| Funnel and win rate | Stages defined and tracked | Cohort conversion data reliable enough to forecast a quarter |
| Retention | Early logo retention and expansion stories | Annual cohorts with net revenue retention reconciled to finance |
| ICP | A clear hypothesis backed by the first customers | A proven ICP plus evidence the next segment can work |
The valuations explain why. Carta’s Q1 2026 data shows a median Series A post-money valuation of $63 million and a median Series B post-money of $177 million. At Series B, investors are paying for an engine they can scale, so they want proof it scales.
How to build a GTM data room and a one-page marketing slide in 90 days
Start 90 days before investor meetings. Most of the work is cleaning data, not making slides.
Days 1 to 30: Fix the data
- Audit the CRM. Every opportunity needs an original source, a created date, a stage history, an amount, and a close reason.
- Write down stage definitions and get sales and marketing to sign off on them.
- Agree with finance on what counts as sales and marketing cost, so CAC matches the books.
- Pull the last 24 months of customer revenue by month for retention cohorts.
Days 31 to 60: Build the metrics
- Calculate CAC, CAC payback, and magic number by quarter, and by channel and segment where the data allows.
- Build cohort funnel conversion, win rate, and sales cycle reports.
- Build net and gross revenue retention by annual cohort.
- Segment customers to test your ICP. Compare win rate, deal size, and retention for ICP and non-ICP accounts.
- Measure channel concentration.
Days 61 to 90: Package the story
- Assemble the GTM data room folder: metric definitions, monthly source data, cohort tables, the ICP document, the channel plan, and the marketing budget with expected returns.
- Build the one-page marketing metrics slide (below).
- Pressure test it. Have someone who has sat on the investor side ask the hard questions and find the gaps.
What goes on the one-page marketing metrics slide
- Qualified pipeline by source, trailing 12 months, as a stacked chart
- CAC and CAC payback trend by quarter
- Magic number trend by quarter
- Funnel conversion from qualified opportunity to closed-won
- Net revenue retention by cohort
- One line on the ICP and one line on the next channel you are funding with the raise
Footnote the definitions so investors can see how each number was calculated. The same evidence later becomes the backbone of an exit story, which I cover in how marketing affects exit multiples.
Where a fractional CMO fits before a raise
Most early-stage companies have the raw data but nobody senior enough to turn it into a story investors trust. A fractional CMO can own the 90-day build: fix attribution, align sales, marketing, and finance on definitions, build the metrics, and coach the CEO on how to defend them. In my career I have run programs deploying up to $1M per week and managed $50M+ in annual ad spend, so I know what these numbers look like when spend scales and where they break. For a broader look at the model for young companies, see our startups overview. For fees, see how fractional CMOs charge.
Frequently asked questions
Do investors expect marketing attribution to be perfect before a Series A?
No. They expect it to be consistent and honest. A simple original-source field applied to every opportunity beats a complex multi-touch model nobody trusts.
What CAC payback is good enough to raise a Series B?
Bessemer’s targets are under 12 months for SMB, under 18 for mid-market, and under 24 for enterprise. If you are above those, show a quarterly trend that is improving and explain the specific actions behind it. A flat or worsening trend while spend rises is the red flag.
Should marketing own the magic number?
Marketing should co-own it with sales and finance. The magic number divides net new ARR by all sales and marketing spend, so it reflects the whole go-to-market team. Finance should calculate it so the figure matches the books investors will see in diligence.
How do I show channel concentration risk without hurting my raise?
Name it before investors find it. Show the share of pipeline by source, then show the second channel you have started testing and its early numbers. A plan with early results reads as maturity; a hidden dependency reads as a surprise.
What belongs in the GTM section of a data room?
Metric definitions, monthly pipeline by source, CAC and payback calculations, magic number by quarter, funnel cohort reports, retention cohorts, the ICP document, and the marketing budget tied to expected pipeline. Every figure should trace back to raw CRM or finance data.
Book a growth plan session
If you plan to raise in the next six to twelve months, start building this evidence now. Book a free 30-minute growth plan session on Google Meet with Michael Pecora and me. We will look at your current go-to-market data, and you will get a written growth plan within 3 business days. No hard sell, and we take only 10 companies a month. Book your session here.
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Sources
- Carta, Only 24 Percent of 2022 Seed Startups Have Reached Series A
- Carta, State of Private Markets Q1 2026
- Bessemer Venture Partners, Scaling to $100 Million
- ICONIQ, The ICONIQ Enterprise Five
- Sapphire Ventures, KeyBanc Capital Markets and Sapphire Ventures Private SaaS Company Survey
- Sapphire Ventures, 2025 KeyBanc Capital Markets and Sapphire Ventures SaaS Survey
