Automating Company Searches at Scale

Automate LinkedIn Sales Navigator company searches via API—no LinkedIn account, cookies, or browser extensions needed.

What You'll Build

A Python script that:

1. Initiates a company search with your criteria
2. Polls for completion
3. Retrieves all matching companies

Example output:

Search initiated: search-companies-1765182228712-o0d7sgs9t
Status: processing (30/100 results)
Status: done (100/100 results)
Found 100 companies

Search Criteria Example

We'll search for companies matching:

• Size: 1,001-10,000 employees (codes F, G)
• Headquarters: United States
• Hiring on LinkedIn: No

For all available filters, see Company Search Filters.

Step-by-Step Implementation

Step 1: Initiate the Search

import requests

API_KEY = "YOUR_API_KEY"
BASE_URL = "https://api.infoplug.io"

def initiate_search():
    response = requests.post(
        f"{BASE_URL}/search-companies",
        headers={
            "X-INFOPLUG-API-KEY": API_KEY,
            "Content-Type": "application/json"
        },
        json={
            "company_headcounts": ["F", "G"],  # F=1001-5000, G=5001-10000
            "headquarters_location": [103644278],  # United States
            "hiring_on_linkedin": "false",
            "limit": 100
        }
    )
    response.raise_for_status()
    return response.json().get("request_id")

Response:

{
  "message": "Company search job created",
  "request_id": "search-companies-1765182228712-o0d7sgs9t",
  "status": "pending",
  "search_type": "filters",
  "limit": 100
}

Step 2: Poll for Completion

import time

def wait_for_completion(request_id):
    while True:
        response = requests.get(
            f"{BASE_URL}/get-company-search-status",
            headers={"X-INFOPLUG-API-KEY": API_KEY},
            params={"request_id": request_id}
        )
        response.raise_for_status()
        data = response.json()
        status = data.get("status")
        results_found = data.get("results_found", 0)
        limit = data.get("limit", 0)
        print(f"Status: {status} ({results_found}/{limit} results)")
        
        if status == "done":
            return True
        if status == "failed":
            return False
        
        time.sleep(30)  # Check every 30 seconds

Response:

{
  "status": "done",
  "message": "Found 100/100 results. Use /get-company-results to retrieve data.",
  "total_count": 250,
  "results_found": 100,
  "limit": 100
}

Step 3: Fetch Results

def fetch_results(request_id):
    all_results = []
    page = 1
    
    while True:
        response = requests.get(
            f"{BASE_URL}/get-company-results",
            headers={"X-INFOPLUG-API-KEY": API_KEY},
            params={"request_id": request_id, "page": page}
        )
        response.raise_for_status()
        data = response.json().get("data", [])
        
        if not data:
            break
        
        all_results.extend(data)
        page += 1
    
    return all_results

Full Script

Copy this complete script to get started:

import requests
import time

API_KEY = "YOUR_API_KEY"
BASE_URL = "https://api.infoplug.io"

def initiate_search():
    response = requests.post(
        f"{BASE_URL}/search-companies",
        headers={
            "X-INFOPLUG-API-KEY": API_KEY,
            "Content-Type": "application/json"
        },
        json={
            "company_headcounts": ["F", "G"],  # F=1001-5000, G=5001-10000
            "headquarters_location": [103644278],
            "hiring_on_linkedin": "false",
            "limit": 100
        }
    )
    response.raise_for_status()
    return response.json().get("request_id")

def wait_for_completion(request_id):
    while True:
        response = requests.get(
            f"{BASE_URL}/get-company-search-status",
            headers={"X-INFOPLUG-API-KEY": API_KEY},
            params={"request_id": request_id}
        )
        response.raise_for_status()
        data = response.json()
        status = data.get("status")
        results_found = data.get("results_found", 0)
        limit = data.get("limit", 0)
        print(f"Status: {status} ({results_found}/{limit} results)")
        
        if status == "done":
            return True
        if status == "failed":
            return False
        
        time.sleep(30)

def fetch_results(request_id):
    all_results = []
    page = 1
    
    while True:
        response = requests.get(
            f"{BASE_URL}/get-company-results",
            headers={"X-INFOPLUG-API-KEY": API_KEY},
            params={"request_id": request_id, "page": page}
        )
        response.raise_for_status()
        data = response.json().get("data", [])
        
        if not data:
            break
        
        all_results.extend(data)
        page += 1
    
    return all_results

if __name__ == "__main__":
    print("Initiating search...")
    request_id = initiate_search()
    print(f"Request ID: {request_id}")
    
    if wait_for_completion(request_id):
        results = fetch_results(request_id)
        print(f"Found {len(results)} companies")
        for company in results[:3]:  # Preview first 3
            print(f"  - {company.get('name')} ({company.get('employee_count')} employees)")
    else:
        print("Search failed")

Pricing

• Initiation: 25 credits (charged even if no results)
• Status checks: Free
• Results: 0.5 credits per company

Example: 100 companies = 25 + (0.5 × 100) = 75 credits

Headcount Codes

Code	Range
A	1-10
B	11-50
C	51-200
D	201-500
E	501-1000
F	1001-5000
G	5001-10000
H	10001+