In a product-led growth (PLG) motion, the product itself is the primary driver of customer acquisition, activation, and expansion. Users discover the product, try it for free, experience its value, and upgrade to paid plans -- often without ever talking to a salesperson. Slack, Figma, and Notion are canonical examples. In a sales-led growth (SLG) motion, a sales team drives the process: prospecting, qualifying, demonstrating, proposing, and closing. Salesforce, ServiceNow, and Workday are canonical examples.
The distinction is not about having or not having a sales team -- many PLG companies have large sales organizations. The distinction is about where the growth engine sits. In PLG, the product generates demand and qualification; sales accelerates conversion for high-value accounts. In SLG, sales generates demand and drives conversion; the product supports the sales conversation. This difference has profound implications for how you invest, who you hire, and how you measure success.
PLG works when four conditions are met. Low barrier to adoption: users can start using the product and experience value without training, configuration, or integration. If your product requires a three-month implementation, PLG is not viable. End-user has autonomy: the person who uses the product can also decide to adopt it, without requiring approval from procurement or IT. Developer tools, design tools, and productivity tools often meet this criterion; enterprise infrastructure and compliance tools typically do not.
Value is demonstrable within the free experience: users must be able to reach their "aha moment" during a free trial or within the freemium tier. If the product's value only emerges after weeks of data accumulation, organizational buy-in, or process change, a free trial will not be sufficient to drive conversion. Expansion is natural: usage grows organically as more people in the organization adopt the product, creating natural upgrade triggers based on seats, usage, or features. PLG without organic expansion degenerates into a free product with no monetization path.
SLG is the right choice when the buying process is inherently complex. Multiple stakeholders: if the purchase requires approval from a buying committee of 6-10 people (which Gartner says is the average for B2B technology purchases above EUR 50,000), a sales team is essential for navigating organizational dynamics, addressing different stakeholders' concerns, and building consensus. High ACV: when average deal sizes exceed EUR 25,000-50,000, the economics support direct sales involvement. The margin on a EUR 100,000 deal justifies 20-40 hours of sales effort; the margin on a EUR 500/month subscription does not.
Integration complexity: if the product must integrate with existing enterprise systems (ERP, HRIS, CRM), a sales engineer or solutions architect is needed to scope the implementation and build confidence that the integration will work. Regulatory or security requirements: industries like healthcare, finance, and government require security reviews, compliance documentation, and vendor risk assessments that necessitate human interaction. No self-serve trial can navigate a 200-question security questionnaire.
Most successful B2B companies are moving toward a hybrid model: product-led acquisition and activation for the bottom of the market, with sales-led conversion and expansion for higher-value accounts. This model uses the product to generate a large pool of engaged users, then applies sales resources selectively to the accounts with the highest expansion potential.
The key to making the hybrid work is product-qualified leads (PQLs): users who have demonstrated through their product behavior that they are likely candidates for a sales conversation. PQL criteria vary by product but typically include: number of active users within the same company, engagement with premium features, hitting usage limits, or visiting pricing pages. When a user or account meets PQL criteria, they are routed to a sales rep who reaches out with context: "I noticed your team of 12 has been using our collaboration features heavily. Would it be helpful to discuss our team plan that includes the admin controls and SSO your IT team typically needs?" This approach produces response rates 3-5x higher than cold outbound because the prospect is already engaged with the product.
Your GTM motion determines your organizational structure, hiring priorities, and investment allocation. PLG companies invest disproportionately in product and engineering (typically 40-50% of headcount), because the product is the growth engine. They hire growth product managers, data scientists who optimize conversion funnels, and engineers who build onboarding and upgrade flows. Marketing focuses on awareness and content (driving signups), not lead generation. Sales is a smaller team focused on high-value accounts and expansion.
SLG companies invest disproportionately in sales and marketing (typically 40-60% of revenue). They hire SDRs, account executives, solutions engineers, and marketing demand gen specialists. Product and engineering receive feature requests driven by competitive deals and enterprise requirements. The organizational culture, meeting cadences, and success metrics all reflect the sales motion at the center of the business. Choosing a GTM motion is not just a strategy decision -- it is a company design decision that shapes how you hire, organize, and operate for years to come. Change your motion later, and you will need to change your entire organization with it.
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