{
  "note": "Sigma Aldrich is not in the current index; this profile reflects its last ranked period (2026-02).",
  "slug": "sigma-aldrich",
  "month": "2026-02",
  "status": "historical",
  "themes": {
    "Application Process": {
      "rank": 6,
      "score": 33.3
    }
  },
  "company": "Sigma Aldrich",
  "country": "United Kingdom",
  "history": [
    {
      "rank": 35,
      "month": "2026-02",
      "visibilityScore": 2.2
    }
  ],
  "summary": null,
  "website": "sigmaaldrich.com",
  "industry": "Biotechnology",
  "lastRanked": "2026-02",
  "profileUrl": "https://employers.perceptionx.ai/company/sigma-aldrich",
  "lastUpdated": "2026-02",
  "modelScores": {
    "chatgpt": 0,
    "googleAi": 0,
    "perplexity": 6.3
  },
  "overallRank": 786,
  "industryRank": 35,
  "mentionCount": 1,
  "topCompetitors": [
    {
      "rank": 1,
      "slug": "astrazeneca",
      "company": "AstraZeneca",
      "visibilityScore": 75.6
    },
    {
      "rank": 2,
      "slug": "gsk",
      "company": "GSK",
      "visibilityScore": 57.8
    },
    {
      "rank": 3,
      "slug": "roche",
      "company": "Roche",
      "visibilityScore": 20
    },
    {
      "rank": 4,
      "slug": "amgen",
      "company": "Amgen",
      "visibilityScore": 15.6
    },
    {
      "rank": 5,
      "slug": "biogen",
      "company": "Biogen",
      "visibilityScore": 13.3
    }
  ],
  "otherIndustries": [],
  "visibilityScore": 2.2,
  "totalCompaniesInCountry": 896,
  "totalCompaniesInIndustry": 42,
  "methodology": {
    "version": "1.0",
    "url": "https://employers.perceptionx.ai/api-docs#methodology",
    "description": "Visibility Score (0-100) is the share of AI model × candidate-experience-theme combinations within an industry and country where the company was mentioned in AI-generated answers to candidate-style questions. Ranks are computed per industry and country; ties break by mention count, then company name. Responses from other assistants (e.g. Claude, DeepSeek) are collected for research but not included in index scoring.",
    "models": [
      "ChatGPT",
      "Google Gemini",
      "Perplexity"
    ]
  }
}