JSFiddle - React, Tailwind, and code Playground

HTML

<p id='success'>

</p>

JavaScript

var companies = {
  company1: {
    status: "success",
  },
  company2: {
    status: "failure",
  },
  company3: {
    status: "success",
  }
}

var successCount = 0;

for (var company in companies) {
  var company = companies[company];
  for (var status in company) {
    if(company[status] === 'success') {
    	successCount++;
    }
  }
}

document.getElementById('success').innerHTML = successCount;