Quick Answer (TL;DR)
Rachel Hepworth is the Former Head of Growth of Slack, a series b+ Productivity SaaS doing $1M+/mo. Their top advice: "Make your product so good that users become your best salespeople."
| Revenue | $1M+/mo |
|---|---|
| Founded | 2013 |
| Team | 50+ people |
| Funding | $10M+ |
| Growth | Product-led |
| Industry | Productivity |
The Origin Story
Rachel Hepworth joined Slack during its explosive growth phase when the company was seeing incredible organic adoption across teams worldwide. Her background in growth marketing and product-led strategies aligned perfectly with what Slack needed at the time. The opportunity to help scale a product that was genuinely changing how teams communicate was too compelling to pass up.
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Biggest Win
One of Hepworth's proudest achievements was optimizing Slack's onboarding flow to improve team activation rates significantly. The team discovered that workspaces where members invited more colleagues and created their first few channels within the first week had measurably higher retention rates. By redesigning the initial user experience to encourage these behaviors early on, Slack saw substantial improvements in long-term engagement and reduced churn across new workspaces.
The Hardest Lesson
Hepworth learned that growth isn't just about acquisition metrics. It's about sustainable engagement and creating genuine value for users. Early in her time at Slack, she focused heavily on top-of-funnel numbers, but realized that the magic happened when teams truly adopted Slack as their central communication hub. This shift in perspective taught her that retention and activation metrics often matter more than raw signup numbers.
Tool Stack
The Slack team relied heavily on Mixpanel for product analytics to understand user behavior patterns across different team sizes and use cases. The growth team used a combination of internal tools and external platforms like Optimizely for A/B testing various onboarding flows. They also built custom dashboards to track cohort retention and workspace health metrics, which were crucial for understanding Slack's product-led growth dynamics.
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Key Metrics
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Advice for SaaS Founders
Focus on building features that naturally encourage users to invite others and create network effects within your product. At Slack, our best growth came from making the product so valuable that teams couldn't imagine working without it, which led to organic expansion within organizations. Don't underestimate the power of word-of-mouth and referrals when you have a product that genuinely solves real problems for users.
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