| Company | Headquarters / Registered Office | Nature of Business | Rank | Map |
| BLISTEX LIMITED |
94 RICKMANSWORTH ROAD WATFORD HERTS WD18 7JJ |
0.0445 | ||
| ORGANON LABORATORIES LIMITED |
SCHERING-PLOUGH HOUSE FALCON WAY SHIRE PARK WELWYN GARDEN CITY HERTS ENGLAND AL7 1TW |
2442 - Manufacture of pharmaceutical preparations |
0.0444 | |
| MERCK SHARP & DOHME LIMITED |
HERTFORD ROAD HODDESDON HERTFORDSHIRE EN11 9BU |
2441 - Manufacture of basic pharmaceutical prods |
0.044 | |
| COSMANA LIMITED |
94 RICKMANSWORTH ROAD WATFORD HERTS WD18 7JJ |
2441 - Manufacture of basic pharmaceutical prods 2452 - Manufacture perfumes & toilet preparations |
0.044 | |
| AQUACULTURE VACCINES LIMITED |
SCHERING PLOUGH HOUSE FALCON WAY SHIRE PARK WELWYN GARDEN CITY HERTFORDSHIRE AL7 1TW |
0.0439 | ||
| CHEMPRO LIMITED |
94 RICKMANSWORTH ROAD WATFORD HERTS WD18 7JJ |
2441 - Manufacture of basic pharmaceutical prods 2452 - Manufacture perfumes & toilet preparations |
0.0439 | |
| CHARLES E.FROSST(U.K.)LIMITED |
CHARLES E. FROSST (U.K.) LIMITED HERTFORD ROAD HODDESDON HERTFORDSHIRE EN11 9BU |
2441 - Manufacture of basic pharmaceutical prods |
0.0439 | |
| D.D.D. LIMITED |
94 RICKMANSWORTH ROAD WATFORD WD18 7JJ |
0.0439 | ||
| MASTERS PHARMACEUTICALS LIMITED |
380 CENTENNIAL AVENUE CENTENNIAL PARK ELSTREE HERTS WD6 3TJ |
2442 - Manufacture of pharmaceutical preparations 5146 - Wholesale of pharmaceutical goods 5190 - Other wholesale |
0.0439 | |
| VITRA PHARMACEUTICALS LTD |
C/O BLANCHE & CO 3B THE LANTERNS 16 MELBOURN STREET ROYSTON HERTFORDSHIRE SG8 7BX |
0.0439 | ||
| DENDRON LIMITED |
94 RICKMANSWORTH ROAD WATFORD WD18 7JJ |
0.0439 | ||
| SCHERING-PLOUGH LIMITED |
SCHERING-PLOUGH HOUSE FALCON WAY SHIRE PARK WELWYN GARDEN CITY HERTS AL7 1TW |
2441 - Manufacture of basic pharmaceutical prods |
0.0439 | |
| H.E. STRINGER (PERFURMERY) LIMITED |
C/O HE STRINGER LTD ICKNIELD WAY TRING HERTFORDSHIRE HP23 4JZ |
0.0439 | ||
| GENERICS (U.K.) LIMITED |
STATION CLOSE POTTERS BAR HERTFORDSHIRE EN6 1TL |
0.0438 | ||
| OPTIMA HEALTHCARE LIMITED |
40A WILBURY WAY HITCHIN HERTFORDSHIRE SG4 0AP |
2442 - Manufacture of pharmaceutical preparations 5146 - Wholesale of pharmaceutical goods |
0.0404 | |
| PFERTEC LIMITED |
C/O BLANCHE & CO 3B THE LANTERNS 16 MELBOURN STREET ROYSTON HERTFORDSHIRE SG8 7BX |
0.0387 | ||
| BESPAK EUROPE LIMITED |
BREAKSPEAR PARK BREAKSPEAR WAY HEMEL HEMPSTEAD HERTFORDSHIRE ENGLAND HP2 4TZ |
0.0382 | ||
| UNIGENE UK LIMITED |
63 HIGH ROAD BUSHEY HEATH HERTFORDSHIRE WD23 1EE |
2442 - Manufacture of pharmaceutical preparations |
0.0379 | |
| CELL THERAPEUTICS (UK) LIMITED |
1 ALBANY PLACE, HYDE WAY WELWYN GARDEN CITY HERTFORDSHIRE AL7 3BT |
2442 - Manufacture of pharmaceutical preparations |
0.0348 | |
| PFYLORI LIMITED |
C/O BLANCHE & CO, 3 THE LANTERNS 16 MELBOURN STREET ROYSTON HERTFORDSHIRE UNITED KINGDOM SG8 7BX |
0.0339 | ||
| GENMAB LIMITED |
C/O BAKER WATKIN MIDDLESEX HOUSE SUITE 3 RUTHERFORD CLOSE STEVENAGE HERTFORDSHIRE ENGLAND SG1 2EF |
2441 - Manufacture of basic pharmaceutical prods |
0.0318 | |
| NICHE GENERICS LIMITED |
1 THE CAM CENTRE WILBURY WAY HITCHIN HERTFORDSHIRE SG4 0TW |
2442 - Manufacture of pharmaceutical preparations |
0.0315 | |
| CUTERA LIMITED |
PO BOX 501 THE NEXUS BUILDING BROADWAY LETCHWORTH GARDEN CITY HERTS SG6 9BL |
0.0314 | ||
| TRIS PHARMA LTD |
FIRST FLOOR, ST. PETERS HOUSE MARKET PLACE TRING HP23 5AE |
2441 - Manufacture of basic pharmaceutical prods |
0.0236 | |
| BIOSYNTH EUROPE LIMITED |
14 LE CORTE CLOSE KINGS LANGLEY HERTFORDSHIRE WD4 9PS |
0.0221 | ||
| TALLEY ENVIRONMENTAL CARE LIMITED |
TORRINGTON HOUSE 47 HOLYWELL HILL ST ALBANS HERTS AL1 1HD |
0.0195 | ||
| BIOPHARMA LABORATORIES (UK) LIMITED |
BELFRY HOUSE BELL LANE HERTFORD HERTFORDSHIRE SG14 1BP |
2441 - Manufacture of basic pharmaceutical prods |
0.0159 | |
| ROCHE PRODUCTS LIMITED |
6 FALCON WAY SHIRE PARK WELWYN GARDEN CITY AL7 1TW |
2441 - Manufacture of basic pharmaceutical prods |
0 | |
| CONCORDE PERFUMERY AND COSMETICS LIMITED |
94 RICKSMANSWORTH RD WATFORD HERTS WD18 7JJ |
0 | ||
| CHEMART LIMITED |
94 RICKMANSWORTH ROAD WATFORD HERTFORDSHIRE WD18 7JJ |
2441 - Manufacture of basic pharmaceutical prods 2452 - Manufacture perfumes & toilet preparations |
0 | |
| RHODIA PHARMA SOLUTIONS LIMITED |
OAK HOUSE REEDS CRESCENT WATFORD HERTS WD24 4QP |
2441 - Manufacture of basic pharmaceutical prods |
0 | |
| VAN VLECK AND OLIVERS LIMITED |
94 RICKMANSWORTH ROAD WATFORD HERTS WD18 7JJ |
2441 - Manufacture of basic pharmaceutical prods 2452 - Manufacture perfumes & toilet preparations |
0 | |
| LINOSA LIMITED |
BATCHWORTH HOUSE BATCHWORTH PLACE CHURCH STREET RICKMANSWORTH HERTFORDSHIRE WD3 1JE |
2413 - Manufacture other inorganic basic chemicals 2441 - Manufacture of basic pharmaceutical prods |
0 | |
| FOUR PHARMACEUTICALS LIMITED |
23 UPPER GREEN ROAD TEWIN WELWYN HERTFORDSHIRE AL6 0LE |
0 | ||
| Y CONSULTANCY LTD |
27 FAIRWAY HEMEL HEMPSTEAD HERTFORDSHIRE UNITED KINGDOM HP3 9TP |
2441 - Manufacture of basic pharmaceutical prods |
0 | |
| INKINE PHARMACEUTICAL COMPANY, LIMITED |
THE COACH HOUSE THE GROVE PIPERS LANE HARPENDEN HERTFORDSHIRE AL5 1AH |
2441 - Manufacture of basic pharmaceutical prods |
0 | |
| BRAND OF BRANDS LIMITED |
BATCHWORTH HOUSE, BATCHWORTH PLACE CHURCH STREET RICKMANSWORTH HERTFORDSHIRE UNITED KINGDOM WD3 1JE |
0 | ||
| SMART FORMULA LIMITED |
185 KNELLA ROAD WELWYN GARDEN CITY HERTS AL7 3NT |
2441 - Manufacture of basic pharmaceutical prods |
0 |