What are the most important metrics for a B2B startup?

For most B2B companies, Revenue should be the primary metric. Alongside revenue, Burn Rate (net monthly costs) and Runway (months of cash remaining) are critical for investor updates.

What is retention and why is it important for B2B SaaS?

Retention measures how many paying customers continue to pay over time. High retention leads to a 'layer cake' of revenue. For B2B SaaS, aiming for net dollar retention above 100% signifies that existing customers are expanding their usage and revenue, driving exponential growth.

How do I calculate net dollar retention?

Net dollar retention accounts for revenue lost from churned customers and revenue gained from upselling existing customers within a cohort. A net dollar retention above 100% means expansions outweigh contractions.

What is gross margin and why does it matter for software companies?

Gross margin is Revenue minus Cost of Goods Sold (COGS). For AI companies, COGS includes costs like API calls to models like OpenAI. While traditional SaaS had high margins, evolving software models and operational businesses require careful attention to gross margin.

Should I scale a startup with negative gross margins?

Scaling negative gross margin businesses is highly discouraged, especially with higher interest rates making capital expensive. Businesses like Uber historically did this, but it requires a clear plan to eventually achieve profitability and should be fixed before scaling.

What's the danger of 'vanity metrics'?

Vanity metrics like Gross Merchandise Value (GMV) or unique visitors look impressive but aren't tied to actual company success. Founders can fool themselves by optimizing for these numbers instead of revenue or profitability.

B2B Startup Metrics | Startup School

Y Combinator

Science & Technology6 min read24 min video

Dec 15, 2023|118,650 views|3,012|60

YC Y Combinator yt:cc=on

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TL;DR

B2B startups need key metrics like revenue, retention, and gross margin for success.

Key Insights

Metrics are crucial for informed decision-making, akin to an airplane's instruments.

Focus on 4-5 core metrics before launch, ensuring clear, agreed-upon definitions.

Revenue is the primary metric for B2B startups; avoid vanity metrics like GMV.

Net dollar retention above 100% is vital for B2B SaaS, indicating cohort growth.

Gross margin is critical, especially for operational or AI-dependent businesses; avoid scaling negative gross margins.

Balance metrics with customer interaction; 'get out of the building' remains essential.

THE CRITICAL ROLE OF METRICS IN STARTUP DECISION-MAKING

Metrics are the compass for startups, providing essential data to navigate the complex journey of building a business. Without them, founders are essentially flying blind, unable to understand user behavior, product performance, or financial health. Key metrics act as instruments, allowing for precise adjustments, iteration, and ultimately, control over the startup's trajectory. Early establishment of basic metrics before launch is strongly advised to avoid the pitfalls of operating without critical insights.

PRUDENT METRIC SELECTION AND DEFINITION

It's vital to select a manageable number of key metrics, typically four to five, to track accurately, especially in the early stages. Avoid 'metric overload' with excessive data points that can lead to analysis paralysis. Crucially, all team members must agree on clear, consistent definitions for these metrics. Disagreements over definitions, such as what constitutes an 'active user,' can derail discussions and productivity, making standardized, documented definitions paramount for internal alignment.

THE PRIMACY OF REVENUE AND AVOIDING VANITY METRICS

For most B2B companies, revenue should be the paramount metric. Vanity metrics, such as Gross Merchandise Value (GMV) or Gross Transaction Value, can be misleading as they don't directly reflect a company's profitability. For instance, a high GMV might be achieved through aggressive rebates, masking stagnant revenue. Founders must resist the temptation to optimize for vanity metrics and instead focus on the financial reality of revenue, even if it's initially low, demanding honesty and transparency.

UNDERSTANDING RETENTION AND NET DOLLAR RETENTION

Retention, measuring how many customers continue to pay over time, is a fundamental indicator of product value. For B2B SaaS, Net Dollar Retention (NDR) is particularly important. NDR accounts for revenue expansion from existing customers (upsells, increased usage) offset by churn. A NDR above 100% signifies that revenue from existing cohorts is growing, building a strong foundation for exponential growth. Conversely, NDR below 100% suggests a leaky bucket, requiring constant effort to replace lost revenue.

THE SIGNIFICANCE OF GROSS MARGIN AND OPERATIONAL EFFICIENCY

Gross margin, calculated as revenue minus cost of goods sold (COGS), is increasingly critical, especially for businesses with significant operational costs or reliance on third-party services like AI models. For pure software companies, margins can be high, but for businesses involving physical operations or core AI model costs, they can be much lower. Scaling businesses with negative gross margins is unsustainable, as it requires constant external capital to subsidize operations, a strategy that is becoming less viable with rising interest rates.

BALANCING METRICS WITH CUSTOMER CONNECTION

While metrics are indispensable for data-driven decisions, they should not replace direct customer interaction. Founders must remember to 'get out of the building' and talk to customers, as exemplified by Brian from Airbnb still hosting guests. This direct feedback loop provides invaluable qualitative insights that metrics alone cannot capture. The most successful startups achieve a vital blend of rigorous metric tracking, customer intuition, and genuine connection with their user base.

ESSENTIAL METRICS FOR INVESTOR UPDATES

Alongside revenue, two other critical metrics for investor updates are burn rate and runway. Net burn rate, representing monthly costs minus revenue, directly impacts financial runway – the amount of time a company can operate before running out of cash. Founders who are transparent about these fundamental financial metrics, even when they are unfavorable, demonstrate a commitment to honesty and a clear focus on improving the business's health, which investors deeply respect.

DEFINING NET DOLLAR RETENTION FOR SAAS GROWTH

Net Dollar Retention (NDR) is a sophisticated metric for B2B SaaS indicating revenue expansion from existing customer cohorts. For example, if an initial $100,000 monthly recurring revenue (MRR) cohort grows to $110,000 through upgrades and upsells, while accounting for any cancellations, it reflects 110% NDR. This metric highlights the power of sticky customers and successful expansion strategies, leading to the impressive exponential growth seen in companies like Stripe and PayPal.

BENCHMARKS FOR EARLY-STAGE B2B SAAS NET DOLLAR RETENTION

Early-stage B2B SaaS companies should aim for Net Dollar Retention significantly above 100%, ideally between 125% and 150%. This higher rate reflects common scenarios such as initially underpricing products, continuous feature additions that increase value, and improving sales and upsell capabilities over time. For more mature companies, 110%-120% is considered strong. Consistently low NDR, especially below 100% for Enterprise SaaS, signals fundamental issues with product-market fit or customer satisfaction that need urgent attention.

THE REALITY OF COST OF GOODS SOLD (COGS)

The Cost of Goods Sold (COGS) represents the expenses directly tied to delivering a product or service to an individual customer. For software companies, this might include cloud hosting fees or API usage costs. As software integrates more into various industries, understanding and managing COGS is crucial for maintaining healthy gross margins. Relying on free credits from AI providers, for instance, can mask true costs and lead to surprises when those credits expire.

OPERATIONAL BUSINESSES AND GROSS MARGIN CHALLENGES

Businesses with heavy operational components, such as delivery services or home services, often contend with lower gross margins compared to pure software plays. The direct costs associated with labor, logistics, and materials can significantly reduce profitability per transaction. YC often encourages founders in these sectors to explore software-only solutions to improve margins. For example, selling the software that powers a delivery operation to other companies can yield much higher gross margins and a more scalable business model.

THE SHIFT AWAY FROM SCALING NEGATIVE MARGIN BUSINESSES

In the era of low-interest rates, companies like Uber famously scaled negative gross margin businesses, using cheap capital as a competitive weapon to achieve network effects. This 'blitzscaling' approach involved subsidizing services to gain market share, but often resulted in massive financial losses. With higher interest rates, investors are far less willing to fund businesses that consistently lose money per transaction, signaling a return to prioritizing unit economics and sustainable business models.

FIXING UNIT ECONOMICS BEFORE SCALING

Companies like Monzo, an online bank, have successfully transitioned from negative to positive unit economics. By bringing technology in-house, introducing value-added services, and refining pricing, they turned per-customer losses into profits. The key takeaway is to fix negative unit economics first. Scaling customer acquisition while still losing money on each customer is an inefficient use of capital and hinders long-term sustainability. Focus on profitability per unit before aggressively pursuing user growth.

Mentioned in This Episode

●Software & Apps

●Companies

●Organizations

●Concepts

B2B Startup Metrics Cheat Sheet

Practical takeaways from this episode

Do This

Track 4-5 key metrics accurately before launch.

Ensure consistent, agreed-upon definitions for all metrics.

Prioritize revenue as the core metric for most B2B companies.

Crucially include Revenue, Burn Rate, and Runway in investor updates.

Focus on retention and aim for net dollar retention above 100% for B2B SaaS.

Monitor Gross Margin carefully, especially for operational businesses.

Have a clear plan to fix negative unit economics before scaling.

Get out of the building and talk to customers.

Use product intuition alongside metrics.

Avoid This

Don't launch without basic metrics in place; it's like flying blind.

Don't fall for vanity metrics like GMV, impressions, or unique users.

Don't change metric definitions to make numbers look better.

Don't compare metrics across companies if definitions vary.

Don't hide if your revenue numbers aren't good.

Don't hide behind metrics; you can't split-test everything.

Don't scale businesses with negative gross margins.

Don't scale customer base rapidly while having negative unit economics.

Common Questions

Metrics are essential for making better decisions, similar to an airplane's instruments guiding a pilot. Without metrics, startups are 'flying blind,' unable to track user behavior, growth, or financial health.