- Laceby - 1 company
- Lainate - 1 company
- Laindon - 1 company
- Lakeside - 2 companies
- Lamberhurst - 1 company
- Lambeth - 1 company
- Lanark - 11 companies
- Lanarkshire - 2 companies
- Lancashire - 154 companies
- Lancashire - 1 company
- Lancashire. - 1 company
- Lancashre - 1 company
- Lancaster - 48 companies
- Lancing - 43 companies
- Lancing Business Park - 1 company
- Lancs - 25 companies
- Lancshire - 1 company
- Lane Althorne - 1 company
- Langham - 1 company
- Langley - 5 companies
- Langley Mill - 2 companies
- Langley Moor - 1 company
- Langport - 10 companies
- Larbert - 6 companies
- Largs - 3 companies
- Larkfield - 1 company
- Larkhall - 11 companies
- Larne - 3 companies
- Lauder - 1 company
- Laughton - 1 company
- Launceston - 14 companies
- Laurencekirk - 7 companies
- Leamington Spa - 54 companies
- Leaside - 1 company
- Leatherhead - 47 companies
- Leavenheath - 1 company
- Ledbury - 17 companies
- Lee - 1 company
- Lee on the Solent - 5 companies
- Leeds - 693 companies
- Leek - 27 companies
- Leek, - 1 company
- Leekbrook - 1 company
- Lee-on-Solent - 3 companies
- Lee-on-the -Solent - 1 company
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