Lemlist

Lemlist stands out in the outreach space by going beyond email. For agencies that prospect across channels, the ability to build sequences combining personalized emails, LinkedIn connection requests, and phone call steps in a single workflow is a major advantage. The platform's dynamic image personalization — embedding prospect-specific details into custom visuals — gives agency pitches a level of polish that template-based emails simply can't match.

Agencies particularly benefit from Lemlist's built-in CRM and deal pipeline. Rather than exporting leads to a separate CRM after initial contact, you can track the full journey from cold outreach to closed deal within Lemlist itself. The lemwarm feature handles email warmup automatically, which is essential for agencies that regularly spin up new sending domains for different client campaigns or internal prospecting efforts.

Compared to Instantly, which focuses on pure email volume at a lower price, Lemlist trades cost efficiency for channel breadth and personalization depth. If your agency's outreach strategy relies on LinkedIn or phone touches alongside email, Lemlist is the stronger choice. For agencies doing high-volume email-only campaigns, Instantly may offer better ROI. Many agencies end up using both: Lemlist for high-touch, personalized sequences and Instantly for broader top-of-funnel campaigns.