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Add first-word parent company extraction

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For company names like "UNILEVER BESTFOOD", now also tries searching
for just the first word ("UNILEVER") as it may be the registered
parent company name. Adds PLC/Limited variations for major corps.

Skips common prefixes like "The", "UK", "British", etc.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
peter
2026-01-20 22:04:44 +01:00
parent 02147d1221
commit 7f4c2362f0
1 changed files with 22 additions and 0 deletions
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22
src/TrueCV.Infrastructure/Services/CompanyVerifierService.cs
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@@ -843,6 +843,28 @@ public sealed class CompanyVerifierService : ICompanyVerifierService
}
}
// Step 0c: Try first word as potential parent company (e.g., "UNILEVER BESTFOOD" -> "UNILEVER")
// Many company names are "ParentCompany Division" or "ParentCompany Brand"
var words = normalized.Split(' ', StringSplitOptions.RemoveEmptyEntries);
if (words.Length >= 2)
{
var firstWord = words[0];
// Only try if first word is substantial (not "The", "A", common prefixes)
var skipWords = new HashSet<string>(StringComparer.OrdinalIgnoreCase)
{ "the", "a", "an", "uk", "british", "national", "international", "global", "new" };
if (firstWord.Length >= 4 && !skipWords.Contains(firstWord))
{
foreach (var firstWordQuery in GenerateNameVariations(firstWord))
{
queries.Add(firstWordQuery);
}
// Also try first word + PLC/Limited for major corporations
queries.Add(firstWord + " PLC");
queries.Add(firstWord + " Limited");
}
}
// Also add variations of the full original name
foreach (var query in GenerateNameVariations(normalized))
{