Category
AI SDR
Key features
Autonomous outbound campaigns
Source backed account research
Prospect list building and scoring
01 — Overview
What is
SellScale
SellScale builds Selix, an AI agent that plans and runs outbound campaigns across email and LinkedIn with little hand holding. It researches accounts with source backed signals, builds and scores prospect lists, writes personalized multi-step sequences and manages sending infrastructure, warming and deliverability. Teams brief and steer it in plain language from Slack or their inbox, and activity syncs back to the CRM.
02 — Who it’s for
Ideal Customer Profile
Built for B2B companies that want outbound without a large SDR team, from founders and startups to larger sales orgs and GTM engineers.
03 — Capabilities
Key Features
Autonomous outbound campaigns
Source backed account research
Prospect list building and scoring
Email and LinkedIn sequences
Mailbox warming and deliverability
Slack, inbox and CRM control
05 — Similar tools
Alternatives
06 — FAQ
Frequently Asked Questions
What is SellScale used for?
SellScale's Selix agent is used to plan and run outbound prospecting, from research and list building to writing, sending and following up on email and LinkedIn.
What is Selix?
Selix is SellScale's AI agent product, announced in April 2026, which the company describes as an AI GTM engineer that runs outbound over days with persistent memory.
Which tools does SellScale connect to?
Selix works in Slack and your email inbox, links LinkedIn accounts and mailboxes, and syncs with your CRM, including Salesforce fields and objects.
Who is SellScale for?
B2B companies, from startups without an outbound motion to larger sales orgs and GTM engineers who want to scale outreach.