Nathan Barry’s SaaS revenue growth story took ConvertKit from $1,207 to $125,000 in monthly recurring revenue in just 15 months. He got there through direct sales webinars, a free concierge migration service that eliminated switching friction, and hard niche focus on professional bloggers rather than everyone with an audience. This case study breaks down the seven specific tactics behind ConvertKit’s SaaS revenue growth and what B2B tech founders can apply today.
ConvertKit reached $125,000 MRR in 15 months by going full-time, running direct sales webinars, offering free concierge migration to remove switching costs, and repositioning to “email marketing for professional bloggers.” Nathan Barry’s most impactful single move was personalized cold outreach to the top 100 bloggers in his target category.
In October 2014, ConvertKit’s monthly recurring revenue had dropped to $1,207. Nathan Barry had spent two years treating it as a side project, and the results showed it. His friend Hiten Shah gave him a direct choice: go all-in, or shut it down.
Nathan chose to go all-in. He stopped all freelance work, invested $50,000 of his own money, and committed to ConvertKit full-time. Fifteen months later, ConvertKit crossed $125,000 in monthly recurring revenue.
This is Part 2 of the ConvertKit growth story. Part 1 covers the founding and early product decisions. This post covers the 15-month sprint from near-zero to $125K MRR and the specific tactics that drove it.
1. The Decision That Changed Everything: Going All-In
When Nathan went full-time in October 2014, ConvertKit was generating $1,207 per month. His B2B go-to-market strategy shifted overnight from part-time experimentation to disciplined execution. He had been splitting his attention between freelance projects and the SaaS business for two years. The moment he committed fully and invested personal capital to back it up, the trajectory changed.
Going all-in on ConvertKit meant Nathan Barry stopped all freelance work and invested $50,000 of personal capital in October 2014. Within 15 months, that commitment produced $125,000 in monthly recurring revenue. The commitment preceded the growth; it did not follow from it. For B2B SaaS founders, divided attention is often the primary reason a product with genuine demand fails to scale.
The lesson here is not about risk tolerance; it is about what sufficient attention produces. Side-project SaaS companies fail not because of bad ideas but because half-attention produces half-results.
2. Direct Sales via Webinars Beat Passive Marketing Early On
Nathan did not wait for inbound traffic to grow ConvertKit. He ran direct sales webinars, presenting ConvertKit live to small groups of professional bloggers, walking through the product in real time, handling objections on the call, and closing customers directly. This began in earnest in June 2015 and produced consistent growth through the second half of the year.
Nathan Barry ran direct sales webinars throughout ConvertKit’s growth phase. The format let him present live demos, handle objections in real time, and close customers on the call. Webinars shortened the sales cycle and produced immediate feedback on which objections were blocking conversion. For early-stage SaaS products, direct selling consistently outperforms passive inbound in the first 12 to 18 months.
The pattern repeats across most successful SaaS growth stories. The fastest-growing founders sold directly and manually in the early stage. They used those conversations to sharpen messaging and remove friction before investing in scalable acquisition channels.
3. The Concierge Migration That Removed Every Switching Objection
The objection Nathan heard most often from prospects who liked ConvertKit but hadn’t switched: “Switching sounds like a huge amount of work.” His answer was not better product messaging; it was to make switching require zero work from the customer.
ConvertKit offered a free concierge migration: Nathan’s team would log into the customer’s existing email platform (AWeber, MailChimp, Keap), transfer all subscribers, copy all autoresponders, and swap out opt-in forms, all at no cost to the customer.
ConvertKit’s free concierge migration service eliminated the most common objection to switching email platforms. Nathan Barry’s team handled the complete migration, subscribers, autoresponders, and opt-in forms at zero cost. This turned a high-friction barrier into a frictionless decision. Removing switching costs is one of the most widely used tactics for SaaS revenue growth, particularly when targeting customers already committed to a competing platform.
This is worth pausing on. Most SaaS products compete on features. ConvertKit competed on friction. By making the switch cost nothing in time or effort, Nathan removed the primary reason a qualified prospect would stay with a competing platform.