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LinkedIn lead-generation automation with a low-friction self-service product that grew to 15,000 paying customers and roughly $375K in monthly recurring revenue.
15,000 paying customers · 70,000 total users
The product won by being cheap, self-service, and easy to try: a developer-led tool that turned influencer reviews and customer referrals into a large free-user funnel.
Fewer bars = easier, cheaper, or faster for an AI-assisted solo builder. Editorial judgments based on the case details.
Will van der Sanden launched Dux-Soup in 2016 as a side project for online lead generation. The product began across several platforms, then concentrated on LinkedIn because demand and differentiation were strongest there. The first full year produced about $1,500, while Will kept contracting as a developer and built the software in evenings and weekends. After roughly a year and a half or two years, revenue was high enough for him to stop normal contracting and work on Dux-Soup full-time. The current shape is a self-service SaaS with 70,000 total users, about 15,000 paying customers, average revenue of roughly $25 per user per month, and a 20-person team. Will says he is the only full-time engineer; the rest cover customer support, marketing, administration, and related work. The Turbo plan is the fastest-growing package at $41 per month. The business is self-funded, and the founder retains full ownership. The key story is not a novel technical breakthrough. It is a narrow tool, simple onboarding, low pricing, and distribution through people already teaching social selling.
For Dux-Soup, the first customers should come from people already trying to improve LinkedIn outreach, not from a broad software launch. Will found that the earliest audience was built through influencers who reviewed or recommended tools for social selling and growth hacking.
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Data credibility: Founder interview; Will van der Sanden stated the 2016 launch, roughly $1,500 first-year revenue, $25 average monthly revenue per user, $41 Turbo pricing, about 70,000 total users, and about 15,000 paying customers. The roughly $375K monthly recurring revenue and $4.5M run-rate figures are interviewer arithmetic and the creator's closing summary derived from those answers, not audited statements. Churn and team-size figures are also founder-reported. No country or city for the founder is stated in the transcript.
The first dollar came from a paid software subscription rather than a service engagement. Dux-Soup launched in January 2016, and the first full calendar year produced about $1,500.
Dux-Soup's flywheel connected a low-priced product, trusted influencers, and a large free-user base. The business reached about 70,000 total users and 15,000 paying customers, with around 4,000 new users arriving each month and roughly one fifth converting to paid, or about 800 according to the interview estimate.
The quiet stretch was funded by contract work, not by a large raise or a heroic burn rate. Will kept developing Dux-Soup in the evenings and on weekends while his software income was only about $1,500 in the first year.
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