| 1 | L'oreal (UK) LIMITED | Ireland | Dublin | C/o Wework | Dublin | D02 EF64 | N/A | 1971 | $482,073,776 | 2,182 | N/A | N/A | 901549 |
| 2 | Medtronic Vascular Galway Unlimited Company | Ireland | Dublin | 10 Earlsfort Terrace | Dublin | D02 T380 | N/A | 1989 | $1,549,100,503 | 1,882 | N/A | N/A | 152984 |
| 3 | Regeneron Ireland Designated Activity Company | Ireland | Dublin | One | Dublin | D02 HH27 | N/A | 2013 | $11,157,196,000 | 1,868 | N/A | N/A | 519550 |
| 4 | Boots Retail (ireland) LIMITED | Ireland | Dublin | Cooldown Commons | Dublin | D24 TW13 | boots.***** | 2002 | $630,723,793 | 1,668 | N/A | N/A | 363449 |
| 5 | Becton Dickinson U.K. LIMITED | Ireland | Drogheda | Donore Road | Louth | A92 YW26 | bd.***** | 1965 | $343,419,823 | 900 | N/A | N/A | 905059 |
| 6 | University Hospital Kerry | Ireland | Tralee | Pharmacy Department | Kerry | N/A | N/A | 2018 | $77,000 | 900 | N/A | N/A | N/A |
| 7 | Mccabes Pharmacy LIMITED | Ireland | Dublin | United Drug House | Dublin | D24 XKE5 | N/A | 2001 | $136,761,759 | 823 | N/A | N/A | 342371 |
| 8 | Lloydspharmacy | Ireland | Dublin | United Drug House | Dublin | D24 XKE5 | united-drug.***** | 2018 | $76,000 | 800 | N/A | N/A | N/A |
| 9 | Peamount Healthcare | Ireland | Newcastle | Peamount Road | Dublin | D22 Y008 | peamount.***** | 1913 | $58,270,353 | 574 | N/A | N/A | 3954 |
| 10 | Patrick Lynch, LIMITED | Ireland | Dublin | Mespil Court | Dublin | N/A | joneseng.***** | 1951 | $3,807,816 | 568 | N/A | N/A | 13710 |
| 11 | Chanelle Pharmaceuticals Manufacturing LIMITED | Ireland | Loughrea | Loughrea Business & Technology Park | Galway | H62 H771 | chanellepharma.***** | 1985 | $98,324,406 | 463 | N/A | N/A | 101615 |
| 12 | Servier (ireland) Industries LIMITED | Ireland | Arklow | Gorey Road | Wicklow | N/A | servier.***** | 1986 | $252,932,427 | 427 | N/A | N/A | 117246 |
| 13 | Saint John Of God Hospital Company LIMITED By Guarantee | Ireland | Stillorgan | Pharmacy Department | Dublin | N/A | N/A | 2006 | $50,352,823 | 424 | N/A | N/A | 430743 |
| 14 | Leo Laboratories LIMITED | Ireland | Dublin | Crumlin Dublin 12 | Dublin | D12 E923 | leo-pharma.***** | 1958 | $525,175,393 | 395 | N/A | N/A | 16885 |
| 15 | Uniphar Wholesale LIMITED | Ireland | Limerick | Garryglass Industrial Estate | Limerick | V94 D9C6 | N/A | 1972 | $469,926,824 | 348 | N/A | N/A | 37511 |
| 16 | Abbott Rapid Dx International LIMITED | Ireland | Galway | Parkmore East Business Park | Galway | H91 VK7E | alere.***** | 2011 | $550,374,722 | 331 | N/A | N/A | 495964 |
| 17 | Wembar Company Unlimited Company | Ireland | Dublin | Clarehall Shopping Centre | Dublin | D17 EY29 | mccabespharmacy.***** | 1986 | $55,567,669 | 309 | N/A | N/A | 117451 |
| 18 | Amo Ireland | Ireland | Dublin | Block B Liffey Valley Office Campus | Dublin | D22 X0Y3 | N/A | 2001 | $6,590,550 | 300 | N/A | N/A | 904750 |
| 19 | Mallow General Hospital | Ireland | Mallow | Limerick Road | Cork | N/A | N/A | 2018 | $77,000 | 300 | N/A | N/A | N/A |
| 20 | Avery Dennison Medical LIMITED | Ireland | Longford | Ida Business Park | Longford | N39 DX73 | medical.***** | 2004 | $55,725,699 | 273 | N/A | N/A | 388266 |
| 21 | Dcc Vital LIMITED | Ireland | Dublin | Fannin House | Dublin | D18 Y0C9 | N/A | 1975 | $9,226,770 | 197 | N/A | N/A | 51914 |
| 22 | Mulligan's Chemist Ferrybank LIMITED | Ireland | Waterford | Rockshire Road | Kilkenny | X91 VY32 | mulliganschemist.***** | 1982 | $22,957,268 | 184 | N/A | N/A | 91922 |
| 23 | Perrigo Pharma International Designated Activity Company | Ireland | Dublin 24 | The Sharp Building | Dublin | D02TY74 | N/A | 1994 | $374,200,000 | 171 | N/A | N/A | 222276 |
| 24 | H P Corrigan LIMITED | Ireland | Dublin | 36 Upper Baggot Street | Dublin | D04R6Y6 | N/A | 2011 | $14,013,441 | 163 | N/A | N/A | 507512 |
| 25 | Abbvie Ireland Nl B.V. | Ireland | Sligo | Manorhamilton Road | Sligo | F91 XH39 | abbvie.***** | 2012 | $3,807,816 | 156 | N/A | N/A | 906838 |
| 26 | Hickey's Pharmacy LIMITED | Ireland | Dublin | Unit 3 Block One | Dublin | D09 CK60 | hickeyspharmacies.***** | 1998 | $25,559,201 | 150 | N/A | N/A | 291994 |
| 27 | Unicare Pharmacy Group LIMITED | Ireland | Citywest | United Drug House | Dublin | N/A | N/A | 1999 | $1,586,590 | 140 | N/A | N/A | 303991 |
| 28 | Phelans Pharmacy | Ireland | Cork | Main Street | Cork | P43 HW57 | phelans.***** | 2003 | $85,000 | 140 | N/A | N/A | N/A |
| 29 | Glaxosmithkline (ireland) LIMITED | Ireland | Dublin | Orion Business Campus, Dublin 15 | Dublin | D15 ET82 | N/A | 1955 | $113,425,424 | 128 | N/A | N/A | 15513 |
| 30 | Merck Sharp & Dohme Ireland (human Health) LIMITED | Ireland | Dublin 18 | Red Oak North South County Business Park | Dublin | N/A | N/A | 2018 | $95,165,145 | 125 | N/A | N/A | 633104 |
| 31 | Duelchem LIMITED | Ireland | Kilkenny | Unit 7 Purcellsinch Industrial Estate | Kilkenny | R95 PX5X | chemcopharmacy.***** | 2008 | $19,107,293 | 121 | N/A | N/A | 451676 |
| 32 | Msdig Holdings Unlimited Company | Ireland | Dublin | Red Oak North | Dublin | D18 X5K7 | N/A | 2003 | $9,644,746,000 | 292 | N/A | N/A | 376424 |
| 33 | Nevinar Cosmetics LIMITED | Ireland | Dublin | Unit 4b Lazer Lane | Dublin | D02 PP89 | clarins.***** | 2007 | $19,572,227 | 108 | N/A | N/A | 439933 |
| 34 | Adrian Dunne Pharmacy Group | Ireland | Dublin | 2nd Floor, Columba House | Dublin | K67 R2Y9 | N/A | 2016 | $77,000 | 100 | N/A | N/A | N/A |
| 35 | Abbvie LIMITED | Ireland | Dublin | Citywest Business Campus | Dublin | D24 XN32 | abbvie.***** | 2012 | $65,218,926 | 99 | N/A | N/A | 510846 |
| 36 | Sundrelle LIMITED | Ireland | Ashbourne | Unit 5 | Meath | A84 ET95 | sundrelle.***** | 1985 | $37,039,494 | 96 | N/A | N/A | 110893 |
| 37 | Imed Health Care LIMITED | Ireland | Dublin | Unit 625 Kilshane Avenue | Dublin | D15 DY92 | imed.***** | 2007 | $100,780,278 | 95 | N/A | N/A | 450179 |
| 38 | Serosep LIMITED | Ireland | Limerick | Annacotty Business Park | Limerick | V94 FF83 | serosep.***** | 1993 | $21,765,985 | 94 | N/A | N/A | 289049 |
| 39 | Cruinn Diagnostics LIMITED | Ireland | Dublin | 5b/6b Hume Centre | Dublin | D12 KX44 | cruinn.***** | 1998 | $42,114,694 | 93 | N/A | N/A | 288123 |
| 40 | Prosys Sampling Systems LIMITED | Ireland | Carrigtwohill | The Ida Park | Cork | T45 AP82 | prosysgroup.***** | 1997 | $19,812,321 | 91 | N/A | N/A | 264339 |
| 41 | Goviltown LIMITED | Ireland | Mullingar | 48 Hillside Drive | West Meath | N/A | N/A | 2000 | $1,586,590 | 90 | N/A | N/A | 325398 |
| 42 | Pharma Force LIMITED | Ireland | Mullingar | Clonard House | West Meath | N91 NW64 | N/A | 2008 | $1,318,110 | 89 | N/A | N/A | 459745 |
| 43 | Therabody International LIMITED | Ireland | Dublin | 1st Floor Suite 104 | Dublin | D02 YW24 | N/A | 2019 | $44,056,970 | 87 | N/A | N/A | 662223 |
| 44 | Fisher Scientific Ireland LIMITED | Ireland | Dublin | C/o Tmf Group, Ground Floor | Dublin | D01 K2C5 | fishersci.***** | 2007 | $58,757,905 | 86 | N/A | N/A | 436396 |
| 45 | Roche Products (ireland) LIMITED | Ireland | Dublin | Citywest Business Campus | Dublin | N/A | N/A | 1994 | $135,532,240 | 85 | N/A | N/A | 214337 |
| 46 | Johnson & Johnson (ireland) LIMITED | Ireland | Dublin | Unit 14 Classon House | Dublin | D14 X9F9 | N/A | 1935 | $96,021,931 | 84 | N/A | N/A | 9043 |
| 47 | Dooleys Merchants LIMITED | Ireland | Newcastle West | The Square | Limerick | V42 N206 | N/A | 1983 | $17,199,224 | 83 | N/A | N/A | 98400 |
| 48 | Sam Mccauley Chemists (redmond Square) LIMITED | Ireland | Rathcoole | 3054 Lake Drive | Dublin | D24 Hn20 | N/A | 2003 | $9,672,449 | 82 | N/A | N/A | 367440 |
| 49 | Psc Biotech LIMITED | Ireland | Dublin | Block 8 Blanchardstown Corporate Park | Dublin | D15 HC93 | N/A | 2012 | $1,318,110 | 81 | N/A | N/A | 512623 |
| 50 | Pfizer Healthcare Ireland Unlimited Company | Ireland | Dublin | Ringsend Road | Dublin | D04 K7N3 | N/A | 1987 | $9,226,770 | 80 | N/A | N/A | 127002 |
| 51 | Abc Nutrition LIMITED | Ireland | Shannon | Unit 7a Knockbeg Point | Clare | V14 XV08 | abcnutritionals.***** | 2006 | $34,504,342 | 79 | N/A | N/A | 423585 |
| 52 | C.H. Chemists (tralee) LIMITED | Ireland | Tralee | 31 the Mall | Kerry | V92 D79F | facebook.***** | 1968 | $12,623,400 | 76 | N/A | N/A | 27260 |
| 53 | Baxter Shared Services & Competencies LIMITED | Ireland | Blackrock | Block 2 Deansgrange Business Park | Dublin | N/A | N/A | 2000 | $15,769,042 | 74 | N/A | N/A | 320507 |
| 54 | Aspen Pharma Ireland LIMITED | Ireland | Dublin | 3016 Lake Drive | Dublin | N/A | idaireland.***** | 2013 | $223,506,537 | 73 | N/A | N/A | 525086 |
| 55 | Pemberton Marketing International LIMITED | Ireland | Dublin | Magna Drive Magna Business Park | Dublin | D24 XKE5 | united-drug.***** | 1988 | $57,743,631 | 72 | N/A | N/A | 134768 |
| 56 | C. O'sullivan Chemists (cork) LIMITED | Ireland | Cork | Inis Eagla | Cork | T12 K72Y | N/A | 1989 | $192,000 | 70 | N/A | N/A | 144318 |
| 57 | Keaney Medical LIMITED | Ireland | Dublin | Clintron House | Dublin | N/A | keaneymedical.***** | 1990 | $300,000 | 65 | N/A | N/A | 162976 |
| 58 | Bishopstown Pharmacy LIMITED | Ireland | Cork | Lanes Cross | Cork | N/A | osullivanspharmacy.***** | 1953 | $1,586,590 | 65 | N/A | N/A | 14883 |
| 59 | Abbey Healthcare Unlimited Company | Ireland | Dun Laoghaire | 1 Pottery Road | Dublin | A96 W6P9 | abbeyhealthcare.***** | 1997 | $1,586,590 | 64 | N/A | N/A | 267243 |
| 60 | Therabel Pharmaceuticals LIMITED | Ireland | Dublin 4 | 55 Percy Place | Dublin | D04CX38 | N/A | 1999 | $60,106,235 | 61 | N/A | N/A | 303189 |
| 61 | Killarney Enterprises LIMITED | Ireland | Arklow | Kilbride Industrial Estate | Wicklow | N/A | N/A | 1997 | $6,966,925 | 60 | N/A | N/A | 904150 |
| 62 | Novo Nordisk LIMITED | Ireland | Santry | First Floor, Block A, the Crescent Building | Dublin | N/A | novonordisk.***** | 1978 | $78,533,509 | 59 | N/A | N/A | 61378 |
| 63 | Northstar Healthcare Unlimited Company | Ireland | Dublin | 70 Sir John Rogerson'S Quay | Dublin | D02 R296 | N/A | 2003 | $742,643,048 | 59 | N/A | N/A | 372645 |
| 64 | Medical Supply CO. LIMITED | Ireland | Mulhuddart | Damastown Ind Est | Dublin | D15 V293 | medical-supply.***** | 1971 | $14,694,598 | 57 | N/A | N/A | 34277 |
| 65 | Loss Control Services LIMITED | Ireland | Swords | 5 St Fintans | Dublin | K67 YA39 | thecplinstitute.***** | 1972 | $5,857,990 | 57 | N/A | N/A | 37322 |
| 66 | Sales Cosmetics LIMITED | Ireland | Dublin | Unit 6a, Broomhill Business Complex | Dublin | N/A | salescosmetics.***** | 2013 | $16,492,214 | 54 | N/A | N/A | 526452 |
| 67 | Laboratory Supplies LIMITED | Ireland | Dublin | John F Kennedy Drive | Dublin | D12 FP79 | lennox.***** | 1923 | $19,032,225 | 54 | N/A | N/A | 7217 |
| 68 | Pharmacy O'riain LIMITED | Ireland | Kildare | New Street | Kildare | R51 NW10 | ryanspharmacy.***** | 1997 | $12,795,050 | 54 | N/A | N/A | 273929 |
| 69 | Msdig Holdings Unlimited Company | Ireland | Dunboyne | Piercetown | Meath | A86 CX93 | N/A | N/A | $0 | 52 | N/A | N/A | N/A |
| 70 | Msdig Holdings Unlimited Company | Ireland | Clonmel | Msd Ballydine | North Tipperary | E91 DD70 | N/A | N/A | $0 | 52 | N/A | N/A | N/A |
| 71 | P.C.O. Manufacturing LIMITED | Ireland | Ashbourne | Unit 10 Ashbourne Business Park | Meath | A84 WR60 | pco.***** | 1987 | $50,427,938 | 51 | N/A | N/A | 116650 |
| 72 | A. Menarini Pharmaceuticals Ireland LIMITED | Ireland | Dublin | Castlecourt, Monkstown Farm | Dublin | A96 T924 | menarini.***** | 1999 | $16,169,170 | 49 | N/A | N/A | 308055 |
| 73 | Brencopharm LIMITED | Ireland | Mohill | Main Street | Leitrim | N41 N2W7 | totalhealth.***** | 2001 | $179,000 | 48 | N/A | N/A | 339414 |
| 74 | T. A. Matthews (ardee) LIMITED | Ireland | Dublin | 2a Fortfield Road | Dublin | D6W KP98 | facebook.***** | 1980 | $1,586,590 | 47 | N/A | N/A | 74001 |
| 75 | Classes Lake Pharmacy LIMITED | Ireland | Bandon | 8 Oliver Plunkett St | Cork | P72E292 | N/A | 2007 | $1,586,590 | 46 | N/A | N/A | 443807 |
| 76 | Briarhill Pharmacy LIMITED | Ireland | Galway | Briarhill Shopping Centre | Galway | H91 H2K3 | facebook.***** | 2008 | $1,586,590 | 45 | N/A | N/A | 451298 |
| 77 | Visioncare Opticians LIMITED | Ireland | Dublin | Unit Nine | Dublin | N/A | specsavers.***** | 1989 | $1,586,590 | 44 | N/A | N/A | 151586 |
| 78 | Ospg LIMITED | Ireland | Limerick | Friarstown | Limerick | V94 HXY8 | N/A | 2012 | $1,586,590 | 43 | N/A | N/A | 508072 |
| 79 | Magees Pharmacy (letterkenny) LIMITED | Ireland | Letterkenny | 27 Upper Main Street | Donegal | F92 E30F | magees.***** | 1993 | $1,586,590 | 43 | N/A | N/A | 207564 |
| 80 | Impedans LIMITED | Ireland | Dublin | Chase House | Dublin | D17 AK63 | impedans.***** | 2004 | $1,318,110 | 42 | N/A | N/A | 394687 |
| 81 | Murrays Medical Equipment LIMITED | Ireland | Dublin | 20/21 Talbot Street | Dublin | D01 KF83 | murrays.***** | 1976 | $9,226,770 | 41 | N/A | N/A | 57479 |
| 82 | Eurosales International LIMITED | Ireland | Dublin | Unit 3 Ballymount Business Park | Dublin | D12 F884 | eurosalesinternational.***** | 1991 | $432,000 | 41 | N/A | N/A | 205996 |
| 83 | Parfums Christian Dior (ireland) LIMITED | Ireland | Dublin | Simpson Xavier Ct | Dublin | D08 | N/A | 1988 | $3,889,738 | 40 | N/A | N/A | 137481 |
| 84 | Barringtons Mri LIMITED | Ireland | Limerick | Barringtons Hospital | Limerick | V94HE2T | alliancemedical.***** | 2000 | $216,000 | 40 | N/A | N/A | 324672 |
| 85 | Frances Foley's Community Pharmacy LIMITED | Ireland | Dublin | Unit 8 Palmerstown Shopping Centre | Dublin | D20 AN20 | lifepharmacy.***** | 1988 | $192,000 | 40 | N/A | N/A | 136072 |
| 86 | Clonmore Pharmacy LIMITED | Ireland | Mullingar | Unit 2b | West Meath | N91R7TC | whelehans.***** | 2016 | $1,586,590 | 40 | N/A | N/A | 594920 |
| 87 | Henry Schein (ireland) LIMITED | Ireland | Dublin | Unit 61a Longmile Centre | Dublin | D12 EYH2 | henryschein.***** | 1995 | $17,488,150 | 40 | N/A | N/A | 232667 |
| 88 | Cofla (galway) LIMITED | Ireland | Galway | Nui Galway Univeristy Road | Galway | N/A | N/A | 1990 | $3,807,816 | 39 | N/A | N/A | 161901 |
| 89 | Mbryonics LIMITED | Ireland | Galway | Unit 13 Westside Enterprise Park | Galway | H91 XK22 | N/A | 2014 | $1,318,110 | 39 | N/A | N/A | 546589 |
| 90 | Fragrances Of Ireland LIMITED | Ireland | Bray | Jamesons Corner | Wicklow | A98 W599 | fragrancesofireland.***** | 1983 | $19,491,355 | 39 | N/A | N/A | 92894 |
| 91 | Cork Visionplus LIMITED | Ireland | Cork | 2 Opera Street | Cork | N/A | N/A | 1990 | $116,000 | 38 | N/A | N/A | 163133 |
| 92 | Mdi Medical LIMITED | Ireland | Kells | Kells Business Park | Meath | A82 E972 | mdimedical.***** | 1987 | $24,003,666 | 38 | N/A | N/A | 121273 |
| 93 | Dgm Pharmacies LIMITED | Ireland | Dublin | Citywest Business Park | Dublin | N/A | N/A | 2003 | $1,586,590 | 38 | N/A | N/A | 374247 |
| 94 | Amogan LIMITED | Ireland | Newcastle West | Unit 4 Daarwood Crescent | Limerick | N/A | N/A | 2005 | $3,807,816 | 60 | N/A | N/A | 404127 |
| 95 | Hayes And Hayes Community Pharmacy LIMITED | Ireland | Portumna Demesne | Saint Brendan'S Street | Galway | N/A | N/A | 2013 | $126,000 | 37 | N/A | N/A | 537018 |
| 96 | Pharmed LIMITED | Ireland | Mullingar | 3 Clonmore Business Park, | West Meath | N91 DK59 | pharmed.***** | 2005 | $19,634,383 | 37 | N/A | N/A | 401775 |
| 97 | Estherfield LIMITED | Ireland | Dublin | Citywest Business Park | Dublin | N/A | N/A | 2003 | $1,586,590 | 37 | N/A | N/A | 368376 |
| 98 | Ballyfermot Pharmacy LIMITED | Ireland | Dublin | Unit 3 Tesco Shopping Centre | Dublin | D10 VY67 | facebook.***** | 2004 | $1,586,590 | 36 | N/A | N/A | 391277 |
| 99 | A. J. Hallahan LIMITED | Ireland | Dungarvan | 38 Grattan Square | Waterford | N/A | facebook.***** | 1996 | $179,000 | 36 | N/A | N/A | 246430 |
| 100 | Mcelwee Totalcare Pharmacy | Ireland | Portlaoise | The Cedar Clinic Medical Centre | Laois | R32 D5XP | mcelweepharmacy.***** | 2018 | $76,000 | 36 | N/A | N/A | N/A |