The stack
The tool stack
Every tool that defines GTM Engineering, grouped by the job it does, with a line on what it is and when to reach for it. The the Essential tag marks the 6 tools most teams standardize on.
Enrichment waterfalls across 200+ providers, AI research, routing and scoring. The orchestration hub.
Lead-finding + waterfall billed only on verified hits.
API/CLI/MCP-first enrichment for agentic pipelines.
Developer-leaning automation with AI/agent nodes; open-source, self-hostable. The glue.
Visual module builder; best for complex branching, low-code.
Broadest app catalog; best for simple app-to-app tasks.
230M+ firmographic + email + phone, bundled with outreach. All-in-one starter.
Deepest enterprise firmographic + direct dials; US-strongest.
Verified mobile ("Diamond Data"); the EU/GDPR leader for compliant EMEA dialing.
High-volume cold email with mailbox rotation and inbox monitoring.
All-in-one sending + lead intelligence for SMB/agency outbound.
AI multichannel (email, LinkedIn, calls) with warmup included.
Highly customizable enterprise CRM; deep territory/approval logic.
All-in-one CRM, fast time-to-value; SMB/mid-market.
Cloud warehouse; central source of truth.
Serverless warehouse for large-scale SQL.
Warehouse-native reverse-ETL / composable CDP.
Strong-reasoning LLM for research, qualification, drafting, classification.
GPT models; broadest ecosystem support.
Clay's AI research agent; pulls data providers miss into a cell.
AI-native code editor for real developers in a real codebase.
Prompt-to-app for non-developers; full-stack from chat.
In-browser prompt-to-app that runs live. Quick prototypes.