curl --request GET \
  --url https://sandbox.withclasp.com/business_units \
  --header 'Authorization: Bearer <token>'

{
  "next": "<string>",
  "previous": "<string>",
  "results": [
    {
      "id": "<string>",
      "employer": "<string>",
      "legal_name": "<string>",
      "public_id": "<string>",
      "trade_name": "<string>",
      "federal_ein": "<string>",
      "is_primary": true,
      "address": {
        "line1": "<string>",
        "city": "<string>",
        "zip_code": "<string>",
        "line2": "<string>"
      },
      "phone_number": "<string>",
      "email": "<string>",
      "metadata": {}
    }
  ]
}