Our Tech Stack

The exact tools we run cold outbound on.

No secret sauce, no smoke. This is the real software stack behind every campaign we run, what each tool does, and what we actually use it for. If it's on this page, it's in our workflow.

An honest heads-up: some links below are affiliate links. We only ever list tools we use ourselves and genuinely stand behind. Nothing makes this page unless it's part of our own stack. If you sign up through a link, we may earn a commission at no extra cost to you.

Core tools in the stack

Layers of the system

50,000+

Emails sent a month

2+ yrs

Running this stack

The Full Stack

Every tool, and what we use it for.

Grouped by the three jobs that make cold outbound work: sending, data, and the inboxes it all runs on.

Sending & Sequencing

Instantly

Sending & Sequencer

Our primary sending engine. We build, schedule, and run cold email sequences here, with inbox rotation, a unified inbox, and analytics that keep up at real volume.

Check out Instantly

Email Bison

Sending & Sequencer

Our second sending engine. High-volume campaign sending with granular deliverability controls and clean, white-labeled reporting when a client needs its own environment.

Check out Email Bison

Data & Enrichment

Prospeo

Data & Enrichment

Email finding and verification. We pull verified work emails and enrich lead lists here so bounce rates stay near zero before a single send goes out.

Check out Prospeo

Clay

Data & Enrichment

Lead sourcing and enrichment on autopilot. Waterfall enrichment plus AI research to build hyper-targeted lists and personalize at scale without hand-checking every row.

Check out Clay

Local Pipe

Local Lead Database

Our go-to database when a campaign targets local businesses. We pull clean, targeted lead lists for brick-and-mortar and service-area companies here.

Check out Local Pipe

Inbox Infrastructure

ScaledMail

Inbox Infrastructure

Done-for-you sending infrastructure. Pre-warmed inboxes on strong, separate domains so our mail lands instead of burning out the client's main domain.

Check out ScaledMail

Premium Inboxes

Inbox Infrastructure

Trusted inbox infrastructure: official Google and Microsoft accounts on healthy domains. The same vendor we've leaned on for 2+ years with zero issues and excellent support.

Check out Premium Inboxes

Run a software company? Want your tool considered for our stack? We only ever feature software we genuinely use and recommend. Reach out to us.

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Want us running this stack for you?

You could buy every tool on this page, or hand the whole system to the team that already runs it. Start with a free 48-hour outbound audit.

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