{
  "id": 6115508,
  "name": "O'REGAN, William Simon",
  "url": "/person/6115508",
  "birth_year": 1959,
  "birth_month": 3,
  "nationality": "British",
  "is_corporate": false,
  "appointment_count": 2,
  "country_of_residence": "England",
  "occupation": "",
  "appointments": [
    {
      "name": "O'REGAN, William Simon",
      "person_url": "/person/6115508",
      "role": "director",
      "appointed_on": "2004-12-31",
      "resigned_on": "2009-01-20",
      "nationality": "British",
      "occupation": "",
      "source": "stream",
      "retrieved_at": "2026-09-01T10:06:05+00:00",
      "company": {
        "company_number": "00104851",
        "name": "Mercer Consulting Limited",
        "url": "/company/00104851"
      }
    },
    {
      "name": "O'REGAN, William Simon",
      "person_url": "/person/6115508",
      "role": "director",
      "appointed_on": "2024-03-05",
      "resigned_on": null,
      "nationality": "British",
      "occupation": "",
      "source": "stream",
      "retrieved_at": "2026-07-17T16:14:10+00:00",
      "company": {
        "company_number": "03583839",
        "name": "Impax Asset Management Limited",
        "url": "/company/03583839"
      }
    }
  ],
  "psc": [],
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: Companies House."
}