curl --request GET \
  --url https://api.hubapi.com/companies/v2/companies/{companyId}

{
  "portalId": 62515,
  "companyId": 10444744,
  "isDeleted": false,
  "properties": {
    "description": {
      "value": "A far better description than before",
      "timestamp": 1403218621658,
      "source": "API",
      "sourceId": null,
      "versions": [
        {
          "name": "description",
          "value": "A far better description than before",
          "timestamp": 1403218621658,
          "source": "API",
          "sourceVid": []
        }
      ]
    },
    "name": {
      "value": "A company name",
      "timestamp": 1403217668394,
      "source": "API",
      "sourceId": null,
      "versions": [
        {
          "name": "name",
          "value": "A company name",
          "timestamp": 1403217668394,
          "source": "API",
          "sourceVid": []
        }
      ]
    },
    "createdate": {
      "value": "1403217668394",
      "timestamp": 1403217668394,
      "source": "API",
      "sourceId": null,
      "versions": [
        {
          "name": "createdate",
          "value": "1403217668394",
          "timestamp": 1403217668394,
          "source": "API",
          "sourceVid": []
        }
      ]
    }
  }
}