The rule of 40 benchmark has plenty of critics. They're not wrong — but they're drawing the wrong conclusion. Here's what 83 private SaaS companies reveal about how to use it to your advantage.

Burn multiple is the one efficiency metric with nowhere to hide — it grades the whole company, not just sales and marketing. Here's how to calculate it correctly, what real benchmark data says about "good," and why AI startups aren't as efficient as anecdotes claim.

Lighter Capital analyzed cash efficiency across 83 private B2B SaaS startups with ARR ranging from roughly $250K to $22M. The data was collected from 2024 through 2025 — actual business metrics from real companies, not survey responses or public filings. What it shows is that cash efficiency in SaaS is not a maturity story. It's an operating model story.

For founders, revenue per employee (R/E) is an important SaaS metric that’s becoming even more interesting as businesses adopt AI. We analyze new revenue per employee benchmarks to help both founders and investors better understand operational efficiency trends in SaaS startups.

Explore 2025 SaaS benchmarks and see how they compare to 2024. We analyze private B2B SaaS startup revenue growth rates, salary costs, churn, and more. We also break down the data by ARR and vertical.

The SaaS market in 2025 is a different beast than it was even three years ago, and it’s raised the bar significantly for SaaS entrepreneurs. Capital is more expensive, investors are more selective, fundraising rounds are smaller, AI can’t be an afterthought, and proof of capital efficiency is required.

"Growth at all costs" is no longer the mantra in tech. Today, the real winners achieve sustainable growth. If you're running a SaaS or subscription-based business, you live and die by retaining and expanding customer accounts. Without a good measure of how your core business is expanding and contracting, your startup could find itself in serious financial trouble you didn't expect.

Sometimes it feels like there is an overwhelming number of metrics you should be tracking for your SaaS startup. They all have their place, but customer success metrics provide some of the most actionable insights for building successful SaaS products. Explore the SaaS customer success metrics that can help your startup move from one growth stage to the next.

Cohort analysis can provide answers to critical questions that guide effective SaaS growth strategies. Do customers you acquired last month act differently than ones you signed up the month prior? Do users who responded to a discount or promotion behave differently than those who purchased at full price? We show you how to get do a cohort analysis and apply the insights to grow smarter.

Smart strategic decisions require knowing how much revenue your customers are bringing in, and more importantly, how much is churning out.

The difference between customer and revenue churn is what your business is losing: customers or cash. Learn to analyze these SaaS metrics.

Explore the latest SaaS benchmarking trends. We analyze private B2B SaaS startup revenue growth rates, salary costs, churn, and more.

We explain SaaS CAC and how you can optimize it to grow a healthy, sustainable startup that's ready to scale.

Follow these principles for building aggressive, yet realistic financial projections for your startup when raising capital from investors.

Learn how to measure product-market fit and why it matters in this comprehensive guide. Discover the key SaaS metrics to show investors.

Learn how to calculate your customer acquisition cost (CAC) ratio so you can measure the effectiveness of your sales and marketing efforts.

Learn best practices for calculating SaaS ARR, the annual recurring revenue in subscription-based businesses, and see how it's used to measure growth and success.

What is a good EBITDA margin for a SaaS startup, and what does the Rule of 40 tell you about your business? Get the answers here.

What's a good gross margin for SaaS startups? Compare yours to SaaS industry benchmarks and learn how to increase your profit margin.

Customer churn is a key metric for assessing the health of a SaaS business. Theses strategies can help you reduce and minimize churn.