Definition. The earliest non-founder whose title at the company was marketing, or sales (including partnerships, business development and GTM), by LinkedIn start month. Interns, contractors, freelancers, advisors, campus and creator programs, store-floor retail roles and service-network roles are not counted.
Verified. A company is left out if it has no verified marketing or sales employee, if both started the same month, or if an earlier hire with an unclear title, a year-only date or a start the year before founding could change the order. That verified 9 of 13 consumer and 22 of 28 B2B companies (7 of 9 and 4 of 22 marketing first).
Best estimate. For the rest we used our best estimate: unclear hires count, and a company with hires on only one side counts as hiring that side first. The chart uses those estimates for 37 companies. Two consumer companies whose first hires started the same month and two B2B companies with no marketing or sales hire are left out. AI labs are not compared.