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Lenny's PodcastA framework for finding product-market fit | Todd Jackson (First Round Capital)
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At a glance
WHAT IT’S REALLY ABOUT
Four-Level Roadmap To Product-Market Fit For B2B Founders
- Todd Jackson, partner at First Round Capital and longtime product leader, shares a structured, data-informed framework for B2B, sales-led startups to understand and systematically achieve product-market fit (PMF).
- He breaks PMF into four levels—nascent, developing, strong, and extreme—across three dimensions: satisfaction, demand, and efficiency, explaining what each level feels like, typical metrics, and how long they tend to take.
- A key tool is the “four Ps” (persona, problem, promise, product) that founders can actively adjust when they’re stuck, illustrated through case studies like Vanta, Lattice, Looker, Ironclad, Plaid, and others.
- Todd also previews First Round’s free Product/Market Fit Method program, which gives early B2B founders a structured, hands-on process (including dollar-driven customer discovery and founder-led sales) to materially increase their odds of reaching strong and extreme PMF.
IDEAS WORTH REMEMBERING
5 ideasTreat product-market fit as a multi-level journey, not a binary event.
Todd defines four levels of PMF (L1–L4) that typically unfold over 4–6 years, with each level emphasizing different dimensions—starting with satisfaction, then demand, then efficiency—rather than expecting a sudden 'geyser' moment.
At Level 1, optimize only for deep satisfaction with a tiny set of customers.
Your job is to find 3–5 paying customers with an urgent, important problem and deliver a highly satisfying solution—often manually or inefficiently—before worrying about scale, channels, or margins, as Vanta did with early SOC 2 work.
Use the four Ps to decide how to pivot when stuck.
If growth stalls, systematically revisit persona, problem, promise (positioning), and product; for example, Lattice kept its persona (heads of HR) but changed the problem, promise, and product from OKRs to performance management, while Plaid kept product code but changed the other three Ps.
Level 2 is about unlocking repeatable demand, not just grinding more sales.
Once you have ~5 satisfied customers, the focus shifts to getting to ~25 through emerging scalable channels (cold outbound, content, partnerships, events), while watching for yellow flags like high regretted churn, slow cycles with low ACV, and flatlining inbound interest.
Strong and extreme PMF depend on efficiency as much as growth.
At Levels 3 and 4, you’re aiming for 25–100+ customers and $5M–$25M+ ARR with improving efficiency metrics (burn multiple, gross margin, payback, NRR) so that each marginal customer is easier and cheaper to win and serve, rather than “$1 in, $2 out” WeWork-style economics.
WORDS WORTH SAVING
5 quotesFinding product-market fit is the single most important thing that your startup does in the first three years.
— Todd Jackson
Product-market fit is not a one-size-fits-all thing and it doesn't just happen overnight.
— Todd Jackson
Most founders do like a 10% pivot, and what they need to be doing is a 200% pivot.
— Todd Jackson (quoting Jack Altman)
We can't guarantee success here. What we are trying to do is increase your odds and reduce the role of luck.
— Todd Jackson
Every customer we got, whether that was number four or number 14, felt like the last customer we were ever going to find.
— Todd Jackson (quoting David Hsu of Retool)
High quality AI-generated summary created from speaker-labeled transcript.
