Independent editorial profile
Co-founder and CEO of Close and startup-sales educator
Steli Efti co-founded Close and publishes practical teaching about startup sales, outbound, follow-up, objections, leadership, and founder-led growth.
BuildOS listens to Steli because his sales teaching focuses on what happens after an initial ask: objections, silence, follow-up, and the smallest next response. The reviewed source directly informs the reply-revival mode in Engagement-First Outreach. We use that narrow process without importing every sales opinion or treating company results as independent evidence.
Editorial standard
Inclusion means BuildOS reviewed useful public material and can trace specific processes back to it. It does not mean the person reviewed, approved, or endorses the resulting skill.
BuildOS currently traces 1 reviewed source across 1 published skill.
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1 reviewed source
A skill for planning, drafting, auditing, and rewriting cold outreach. Distilled from seven cold-email source analyses into one playbook for high-volume campaigns, strategic accounts, single-target relationship outreach, reply revival, investor fundraising, founder-led outreach, recruiting, PR, partnerships, and customer research.