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[Image of software architecture diagram] The Challenge: You have a list of 500 “Dream Accounts” (ICP) in your CRM. The Old Way: Your SDRs spend days manually searching LinkedIn, copying random emails, and hitting “Send” to whoever they find. The Blitz Way: Automate the entire breakthrough process. Identify the buying committee, verify their data, and enroll them in sequences---instantly. This playbook demonstrates how to build an Account Breakthrough Engine using BlitzAPI.

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🛠️ The Stack

  • Orchestrator: n8n or Make (to glue everything together).
  • Data Engine: BlitzAPI (Waterfall ICP + Validation).
  • Source of Truth: HubSpot / Salesforce (Input).
  • Execution: Smartlead / Lemlist (Cold Email).

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🗺️ The Workflow

We will move from a “List of Domains” to “Active Conversations” in 4 automated steps.
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1. Input: The Target List

Your workflow pulls the target accounts from your CRM.
  • Required Data: Company Domain (e.g., stripe.com) or Company LinkedIn URL.
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2. The 'Waterfall' Penetration

We don’t just want any contact. We want the Economic Buyer first, then the Champion.We send the company to BlitzAPI with a strict hierarchy:
  1. Tier 1: C-Level & VPs (The Decision Makers).
  2. Tier 2: Directors (The Champions).
  3. Tier 3: Managers (The Entry Points).
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3. The Safety Gate (Validation)

Every profile found is passed through BlitzAPI’s Email Validation.
  • Valid: Sync to CRM & Smartlead immediately.
  • Catch-All: Route to a manual review list (optional) or secondary sequence.
  • Invalid: Discarded automatically to protect domain reputation.
4

4. Contextual Sync

Push data back to the CRM with context tags:
  • Tag: Tier 1 - Decision Maker
  • Tag: Tier 2 - Champion
This allows Smartlead/Lemlist to send different scripts to the VP (Strategic value) vs. the Manager (Operational pain).

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🧠 The “Waterfall” Configuration

This is the brain of the operation. By setting max_results: 5, we ensure we penetrate the account with multiple touchpoints without spamming the entire directory. Endpoint: POST /api/search/waterfall-icp 
{
  "company_linkedin_url": "[https://www.linkedin.com/company/target-account](https://www.linkedin.com/company/target-account)",
  "cascade": [
    {
      "include_title": ["Chief Revenue Officer", "CRO", "VP Sales", "Head of Growth"],
      "location": ["US", "GB"],
      "include_headline_search": false
    },
    {
      "include_title": ["Sales Director", "Director of Business Development"],
      "location": ["US", "GB"],
      "include_headline_search": true
    },
    {
      "include_title": ["Sales Manager", "Account Executive Team Lead"],
      "location": ["US", "GB"],
      "include_headline_search": false
    }
  ],
  "max_results": 5
}
Pro Tip: Notice the max_results: 5. BlitzAPI will fill these 5 slots starting from the top of your cascade. If it finds 5 C-Levels, it stops there. If it only finds 1 C-Level, it fills the remaining 4 slots with Directors. You always get the best possible seniority mix.

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🚀 Why the “Unlimited Model” Enables This

Running this strategy with traditional “Per Credit” providers is prohibitively expensive. Enriching 5 contacts per company across 1,000 accounts = 5,000 credits. With BlitzAPI’s Unlimited Plan:
  • Cost: Included in your flat monthly fee.
  • Risk: Zero. You can run this on 100,000 accounts if you want.
  • Refresh: You can re-run this playbook every quarter to catch new hires (Job Changes) without worrying about the bill.

Start Building in n8n

See our n8n templates to orchestrate this flow.

Start Building in Clay

Prefer spreadsheets? Run this logic inside Clay.