B2BEnrich vs OpenGTM

B2BEnrich provides real-time B2B data enrichment through a REST API and web interface. It can turn emails, phone numbers, and profile URLs into professional profiles with job, company, and contact details. Company enrichment returns firmographic information such as industry, revenue range, employee count, headquarters, funding history, and technology stack. The service says its database includes more than 550 million professional contacts and 50 million companies. Email validation includes SMTP-level checks, deliverability scoring, disposable-address detection, MX validation, and breach-history checks. Requests and responses use JSON; the API uses API-key authentication and HTTPS encryption. CRM integrations include HubSpot, Salesforce, and Pipedrive, with Zapier, Make, or direct API connections available for other CRMs. The free plan includes 50 credits per month. Starter costs $49 a month for 2,000 credits per month, and includes a 7-day trial. Rate limits apply, and high-volume users can contact B2BEnrich about custom limits.

OpenGTM is an open-source, self-hosted workspace for go-to-market teams and their agents. It handles lead sourcing and enrichment, AI research with cited answers, buying-intent tracking and sending qualified records to other tools. Workbooks combine imports, formulas, HTTP columns, enrichment waterfalls, AI research and output columns, with estimated spend visible before runs. Teams can segment live audiences, monitor hiring and buying signals, and schedule refreshes and automations. Listed activation destinations include HubSpot, Salesforce, Slack, Sheets, Airtable, Instantly, Smartlead, webhooks, warehouses and consent-gated ad audiences. The workspace is also available through REST, webhooks and an auditable MCP server with scoped read and write access. The project says data remains on the user's infrastructure and external calls use provider keys selected by the user. Teams can set workbook budgets to stop paid calls at a ceiling, although provider charges may apply. The software is free under AGPL-3.0. Installation requires Git, Docker with Compose v2 and roughly 4 GB of RAM. The project is pre-1.0; public multi-tenant hosting needs further work beyond team-controlled Compose deployment.