Net New Customer Growth: The Ultimate B2B Health Check

The Gist

• Net new customer growth reveals B2B company health better than revenue or NRR.
• Half of major public B2B companies hide quarterly customer counts.
• HubSpot’s customer growth declined from 23% to 16% YoY over two years.
• Accelerating net new customer growth signals market demand and operational excellence.

• Net new customer growth is the most honest metric for assessing B2B company health, revealing whether the market still wants what you're selling.
• Companies selling infrastructure to AI builders are accelerating customer growth, while those selling per-seat software to humans are decelerating.
• Cloudflare, Palantir, Twilio, and Snowflake are accelerating customer growth due to AI tailwinds and differentiated go-to-market strategies.
• MongoDB's enterprise sales engine is contracting despite overall customer growth, masking structural problems.
• Revenue growth should be no more than ~2x customer count growth rate; ratios above this indicate harvesting rather than sustainable growth.
• Investing in new customer acquisition is critical, even when expensive, to avoid losing market share to competitors.

• Track multiple customer cohorts (total, $50K+, $100K+, $500K+) to identify trends in high-value customer growth.
• Invest in new customer acquisition even when ROI from existing accounts appears higher in the short term.
• Evaluate your position on the AI bifurcation and adapt your strategy to align with AI tailwinds or agentic product development.
• Ensure revenue growth does not exceed ~2x customer count growth rate to avoid unsustainable harvesting.

• Cloudflare: 40% YoY customer growth in Q4 2025 (Cloudflare added 37,000 net new paying customers in Q4 2025, with $100K+ customers growing 23% and $1M+ customers growing 55%.)
• Palantir: 45% YoY customer growth in Q3 2025 (Palantir's US commercial customer count grew 83% YoY in mid-2024, with revenue growth accelerating to 63%.)
• Twilio: 42% YoY customer growth in Q1 2026 (Twilio added 43,000 net new accounts in Q1 2026, a 35-point acceleration from the previous year.)
• Snowflake: 40% YoY net-new customer growth in Q4 FY26 (Snowflake's NRR is running at 125%, driven by enterprise AI initiatives.)
• MongoDB: 20% YoY customer growth, but 7% decline in direct sales customers (MongoDB lost 500 direct sales customers while total customers grew 20%, indicating erosion in the enterprise sales engine.)
• Samsara: 37% YoY growth in $100K+ ARR customers (Samsara added 204 new $100K+ customers in Q4 FY2026, with $1M+ ARR customers growing 56%.)