Second Brain Labs (Sbl.so)

Second Brain Labs is the company behind Sbl.so, an autonomous AI SDR platform for outbound sales. The site now lives at sbl.so, and the product has narrowed into a clear proposition: run LinkedIn and WhatsApp outreach at scale without putting your own account or your team's calendar at the mercy of manual copy-paste follow-up. The core mechanic is a fleet of dedicated, pre-warmed SDR profiles — described as carrying zero account bans across 50 million-plus messages sent — so outreach volume grows without risking the founder's or a rep's personal network.

Getting started is deliberately simple. You define your ideal customer profile in plain English or import a Sales Navigator search, and the platform builds a live lead list from buying signals such as job changes, funding announcements and competitor monitoring rather than from purchased lists. The AI then opens from your sender profiles in a conversational tone, uses voice clones and rich media where appropriate, handles replies and objections, and flags hot leads for human handoff when needed. Qualified buyers book directly into the calendar over Google Meet.

Under the hood it packages roughly 18 tools into a single subscription: lead generation, AI outreach, managed sender profiles, a unified inbox, a built-in CRM with booking, advanced analytics, multi-channel sequencing and agency-grade workspaces. The platform is marketed heavily at founders running outbound without a sales hire, sales teams wanting more meetings per rep, and agencies who need a separate, isolated workspace and sender profile per client.