| 1 | United Drug Distributors Ireland LIMITED | Ireland | Dublin | United Drug House Magna Drive, Magna Business Park | Dublin | D24 XKE5 | united-drug.***** | 2015 | $1,192,659,304 | 144 | N/A | N/A | 566401 |
| 2 | An Post Billpost Processing Services LIMITED | Ireland | Dublin 13 | General Post Office | Dublin | D01F5P2 | anpost.***** | 2001 | $974,425,688 | 10,363 | N/A | N/A | 346598 |
| 3 | Iarnród Éireann - Irish Rail | Ireland | Dublin 13 | Dublin Connolly | Dublin | D01 V6V6 | irishrail.***** | 1987 | $690,648,330 | 4,559 | N/A | N/A | 119571 |
| 4 | Irish Continental Group, Public LIMITED Company | Ireland | Swords | Ferryport Alexandra Road | Dublin | D01 W2F5 | irishferries.***** | 1973 | $638,523,330 | 290 | N/A | N/A | 41043 |
| 5 | Bus Éireann - Irish Bus | Ireland | Dublin | Broadstone | Dublin | D07 X2AE | buseireann.***** | 1987 | $634,467,147 | 2,932 | N/A | N/A | 119570 |
| 6 | Kuehne & Nagel (ireland) LIMITED | Ireland | Swords | Unit D2 Horizon Logistics Park 55505 | Dublin | K67 A5W6 | kn-portal.***** | 1996 | $469,681,976 | 530 | N/A | N/A | 250768 |
| 7 | D'amico Tankers Designated Activity Company | Ireland | Dublin | The Anchorage | Dublin | D02 DT18 | damicoship.***** | 2001 | $431,733,000 | 27 | N/A | N/A | 351529 |
| 8 | D'amico Dry Designated Activity Company | Ireland | Dublin | The Anchorage | Dublin | D02 DT18 | damicoship.***** | 2002 | $388,444,000 | 27 | N/A | N/A | 351697 |
| 9 | Bus Átha Cliath - Dublin Bus | Ireland | Dublin | 59/60 O'Connell Gardens | Dublin | D04 ED78 | dublinbus.***** | 1987 | $363,943,978 | 3,940 | N/A | N/A | 119569 |
| 10 | Dhl Global Forwarding (ireland) LIMITED | Ireland | Swords | Cedar Drive | Dublin | K67 R970 | dhl.***** | 1986 | $362,053,621 | 263 | N/A | N/A | 115327 |
| 11 | Stena Line LIMITED | Ireland | Dublin | Port Centre | Dublin | D01 H4C6 | stenaline.***** | 1986 | $319,096,800 | 1,693 | N/A | N/A | 902677 |
| 12 | Eucon Shipping & Transport LIMITED | Ireland | Dublin | B & I Ferryport | Dublin | N/A | irishferries.***** | 1987 | $292,869,246 | 1,372 | N/A | N/A | 122005 |
| 13 | Schenker (ireland) LIMITED | Ireland | Shannon | Smithstown Business Park | Clare | V14 YW73 | dbschenker.***** | 1994 | $246,457,268 | 702 | N/A | N/A | 213397 |
| 14 | Windsor Motors Unlimited Company | Ireland | Dublin | Belgard Road | Dublin | N/A | windsor.***** | 1968 | $222,537,660 | 300 | N/A | N/A | 26650 |
| 15 | Cabletron Systems LIMITED | Ireland | Limerick | The National Technological Park | Limerick | N/A | N/A | 1992 | $207,297,439 | 150 | N/A | N/A | 903211 |
| 16 | Interlink Ireland LIMITED | Ireland | Athlone | Athlone Business & Technology Park | West Meath | N/A | dpd.***** | 1986 | $205,007,078 | 481 | N/A | N/A | 113012 |
| 17 | Club Travel LIMITED | Ireland | Dublin | 29-30 Abbey Street Lower | Dublin | D01 T0H4 | bti.***** | 1982 | $204,310,033 | 187 | N/A | N/A | 89890 |
| 18 | Dhl Express (ireland) LIMITED | Ireland | Dublin | Unit 3, Elm Road, Dublin Airport Logistics Park | Dublin | N/A | dhl.***** | 1985 | $198,969,433 | 512 | N/A | N/A | 106091 |
| 19 | Primeline Logistics Unlimited Company | Ireland | Ashbourne | Unit 3 Ashbourne Business Park | Meath | A84PX25 | primeline.***** | 1999 | $159,740,735 | 527 | N/A | N/A | 313922 |
| 20 | Signode Packaging Ireland LIMITED | Ireland | Waterford | Belview Port | Waterford | X91 VR94 | N/A | 2010 | $151,137,883 | 142 | N/A | N/A | 490491 |
| 21 | Pandoro LIMITED | Ireland | Dublin 13 | Tolka Quay | Dublin | N/A | N/A | 1977 | $143,917,193 | 80 | N/A | N/A | 901939 |
| 22 | Erac Ireland LIMITED | Ireland | Dun Laoghaire | Pottery House | Dublin | A96 WY61 | enterprise.***** | 1997 | $137,243,875 | 387 | N/A | N/A | 269602 |
| 23 | Trailfinders Ireland LIMITED | Ireland | Dublin | 4/5 Dawson Street | Dublin | D02 FH72 | trailfinders.***** | 2001 | $133,628,125 | 82 | N/A | N/A | 339940 |
| 24 | Lufthansa Technik Turbine Shannon LIMITED | Ireland | Shannon | World Aviation Park | Clare | N/A | N/A | 1990 | $129,122,000 | 695 | N/A | N/A | 163448 |
| 25 | United Parcel Service Of Ireland LIMITED | Ireland | Dublin | Unit 3 | Dublin | D11 H019 | ups.***** | 1986 | $125,190,256 | 297 | N/A | N/A | 113016 |
| 26 | Expeditors Ireland LIMITED | Ireland | Swords | Unit 6 | Dublin | K67 WE09 | expeditors.***** | 1981 | $120,692,161 | 251 | N/A | N/A | 80178 |
| 27 | Volvo Car Ireland LIMITED | Ireland | Citywest | 5 Riverwalk, Citywest Business Campus | N/A | N/A | N/A | 1987 | $116,515,566 | 15 | N/A | N/A | 182538 |
| 28 | World Travel Centre LIMITED | Ireland | Dublin | 43 Pearse Street | Dublin | D02 W085 | worldtravel.***** | 1991 | $114,939,799 | 97 | N/A | N/A | 168612 |
| 29 | Tourism Ireland Company LIMITED By Guarantee | Ireland | Dublin | 4th Floor Bishops Square | Dublin | D02 2D99 | tourismireland.***** | 2000 | $110,988,435 | 193 | N/A | N/A | 336370 |
| 30 | Dublin Port Company | Ireland | Dublin | Port Centre | Dublin | D01 H4C6 | dublinport.***** | 1997 | $110,263,425 | 150 | N/A | N/A | 262367 |
| 31 | Dp World Logistics Ireland Unlimited Company | Ireland | Swords | 1a, Airport Business Park | Dublin | K67 Y9T3 | syncreon.***** | 2007 | $109,421,479 | 202 | N/A | N/A | 91837 |
| 32 | Linevana LIMITED | Ireland | Dublin 13 | 25 Lower Liffey Street | Dublin | D01F1W1 | cassidytravel.***** | 1985 | $106,245,954 | 217 | N/A | N/A | 106455 |
| 33 | Dhl Supply Chain (ireland) LIMITED | Ireland | Dublin | 10 Earlsfort Terrace | Dublin | D02 T380 | N/A | 1985 | $104,313,346 | 492 | N/A | N/A | 106235 |
| 34 | Transdev Dublin Light Rail LIMITED | Ireland | Dublin | Luas Depot | Dublin | D22 C5P3 | N/A | 2002 | $100,418,039 | 648 | N/A | N/A | 354252 |
| 35 | Shs Sales & Marketing LIMITED | Ireland | Rathcoole | Unit Q1 Aerodrome Business Park | Dublin | N/A | N/A | 1994 | $91,284,985 | 33 | N/A | N/A | 221613 |
| 36 | Go-Ahead Transport Services (dublin) LIMITED | Ireland | Dublin | Ballymount Road Lower | Dublin | D12 X201 | goaheadireland.***** | 2017 | $86,103,321 | 838 | N/A | N/A | 610541 |
| 37 | Dsv Road LIMITED | Ireland | Naas | B1, Rowan Tree Road | Kildare | W91 VE82 | dsv.***** | 1979 | $81,878,614 | 140 | N/A | N/A | 72301 |
| 38 | Nvd Trading LIMITED | Ireland | New Ross | Marshmeadows | Wexford | Y34XY81 | N/A | 2023 | $72,974,825 | 399 | N/A | N/A | 737352 |
| 39 | Jf Hillebrand LIMITED | Ireland | Dun Laoghaire | Ashton House | Dublin | N/A | jfhillebrand.***** | 2007 | $72,244,233 | 6 | N/A | N/A | 450122 |
| 40 | Johnson Brothers Unlimited Company | Ireland | Ashbourne | Unit 12 Ashbourne Business Park | Meath | A84 YY02 | N/A | 1952 | $71,993,306 | 59 | N/A | N/A | 14234 |
| 41 | Fedex Express Ireland LIMITED | Ireland | Dublin | Unit 1 Belgard Industrial Estate | Dublin | D24 FC96 | N/A | 1980 | $69,816,846 | 277 | N/A | N/A | 74547 |
| 42 | Abbey Tours LIMITED | Ireland | Dublin | Merchants Hall | Dublin | D08 NT3K | abbeygroup.***** | 2004 | $63,348,792 | 103 | N/A | N/A | 393498 |
| 43 | Dsv Air & Sea LIMITED | Ireland | Naas | B1, Rowan Tree Road | Kildare | W91 VE82 | dsv.***** | 1989 | $63,142,745 | 31 | N/A | N/A | 140030 |
| 44 | City Wonders LIMITED | Ireland | Dublin | 6-9 Trinity Street | Dublin | D02 EY47 | citywonders.***** | 2006 | $63,098,031 | 99 | N/A | N/A | 426218 |
| 45 | Ryan's Investments Unlimited Company | Ireland | Wexford | Ferrybank | Wexford | N/A | N/A | 1963 | $61,593,669 | 85 | N/A | N/A | 20261 |
| 46 | Iwt Ventures LIMITED | Ireland | Ballycoolin | Block 10-5 | Dublin | N/A | N/A | 2021 | $60,110,034 | 48 | N/A | N/A | 710652 |
| 47 | Chc Ireland Designated Activity Company | Ireland | Dublin 24 | Riverside One | Dublin | N/A | N/A | 1994 | $59,981,684 | 150 | N/A | N/A | 218246 |
| 48 | Dp World Logistics Ireland International Group Unlimited Company | Ireland | Limerick | Ground Floor, Ashbourne Hall | Limerick | N/A | N/A | 1970 | $59,766,350 | 350 | N/A | N/A | 281284 |
| 49 | Nightline Logistics Group Unlimited Company | Ireland | Dublin | Unit 5 Mygan Business Park | Dublin | D11 A729 | nightline.***** | 1991 | $58,657,949 | 210 | N/A | N/A | 181961 |
| 50 | Michael Dixon International Transport LIMITED | Ireland | Swords | Food Central | Dublin | K67 V9F3 | dixontransport.***** | 2005 | $57,839,353 | 249 | N/A | N/A | 399090 |
| 51 | Shannon Airport Authority Designated Activity Company | Ireland | Shannon | Shannon Airport House | Clare | V14 E370 | shannonairport.***** | 2004 | $57,249,676 | 227 | N/A | N/A | 391054 |
| 52 | Deliveroo Ireland LIMITED | Ireland | Dublin | The Stone Building | Dublin | D04 P6W3 | deliveroo.***** | 2015 | $56,505,797 | 38 | N/A | N/A | 556923 |
| 53 | Sp Cruises Ireland LIMITED | Ireland | Dublin | 32 Molesworth Street | Dublin | D02 Y512 | N/A | 2021 | $55,705,102 | 17 | N/A | N/A | 689577 |
| 54 | Perennial Freight LIMITED | Ireland | Taghmon | Poulmarle | Wexford | Y35 EP98 | perennialfreight.***** | 2001 | $53,487,886 | 125 | N/A | N/A | 339499 |
| 55 | Flextronics International Ireland LIMITED | Ireland | Cork | Kilbarry Industrial Park | Cork | T23 CV63 | flex.***** | 1999 | $52,700,876 | 191 | N/A | N/A | 316578 |
| 56 | Aramex Ireland LIMITED | Ireland | Ballyboughal | Bellinstown | Dublin | N/A | aramex.***** | 1994 | $52,639,092 | 158 | N/A | N/A | 222639 |
| 57 | Port Of Cork Company | Ireland | Cork | Harbour Office | Cork | T12 CY88 | portofcork.***** | 1997 | $52,604,799 | 178 | N/A | N/A | 262368 |
| 58 | Traveldev LIMITED | Ireland | Dublin | Unit 4b-5, Blanchardstown Corporate Park | Dublin | D15 | directski.***** | 2000 | $51,456,307 | 117 | N/A | N/A | 328460 |
| 59 | Roadteam Logistics Solutions Unlimited Company | Ireland | New Ross | Oaklands | Wexford | Y34 X335 | N/A | 1972 | $50,973,752 | 267 | N/A | N/A | 78784 |
| 60 | Independent Freight Group LIMITED | Ireland | Dublin | Valleymount House Main Street | Dublin | D15CP5X | N/A | 2019 | $50,740,458 | 262 | N/A | N/A | 648854 |
| 61 | Tony Collins Travel Agency LIMITED | Ireland | Dublin | Jervis House | Dublin | D01 E3W9 | topflightforschools.***** | 1982 | $49,625,554 | 100 | N/A | N/A | 91237 |
| 62 | M. Mcguire Haulage LIMITED | Ireland | Thomastown | Ahenure | Kilkenny | R95 NC83 | mcguirehaulage.***** | 2001 | $48,908,501 | 215 | N/A | N/A | 337725 |
| 63 | Shannon Transport & Warehousing Company Unlimited Company | Ireland | Limerick | Logistics Centre | Limerick | V94 V8D8 | stllogistics.***** | 1973 | $48,601,207 | 278 | N/A | N/A | 43409 |
| 64 | Geodis Ireland LIMITED | Ireland | Dublin | Damastown Industrial Park | Dublin | D15 PO3R | geodis.***** | 2001 | $48,487,018 | 77 | N/A | N/A | 342010 |
| 65 | Brian Caffrey International LIMITED | Ireland | Ashbourne | Coolfore | Meath | A84 VY71 | caffreyinternational.***** | 1977 | $48,131,266 | 225 | N/A | N/A | 57673 |
| 66 | Avec Logistics (ireland) LIMITED | Ireland | Swords | Unit 3 | Dublin | K67 D6P0 | N/A | 1994 | $47,962,788 | 136 | N/A | N/A | 212796 |
| 67 | Daa International LIMITED | Ireland | Swords | Three | Dublin | K67 X4X5 | N/A | 2014 | $46,868,725 | 217 | N/A | N/A | 542560 |
| 68 | Xpo Logistics Ireland LIMITED | Ireland | Dublin | 28 Fitzwilliam Street Lower | Dublin | D02 | N/A | 2010 | $45,627,782 | 46 | N/A | N/A | 484040 |
| 69 | Touax Rail LIMITED | Ireland | Dublin | Bracetown Business Park | Meath | D15 K64C | touaxrail.***** | 2001 | $44,695,855 | 60 | N/A | N/A | 351051 |
| 70 | Doyle Group Unlimited Company | Ireland | Cobh | Westlands House | Cork | P24 H940 | N/A | 1987 | $43,990,534 | 271 | N/A | N/A | 121166 |
| 71 | Jenkinson Agencies LIMITED | Ireland | Dublin | 36 Airways Industrial Estate | Dublin | D17 CD96 | jenkinson.***** | 1975 | $43,555,321 | 60 | N/A | N/A | 85330 |
| 72 | O'toole Transport LIMITED | Ireland | Moycullen | Allens Park | Galway | H91 Y640 | otooletransport.***** | 1996 | $43,281,869 | 225 | N/A | N/A | 246594 |
| 73 | Invermore Shipping LIMITED | Ireland | Arklow | North Beach | Wicklow | Y14 A729 | N/A | 1988 | $43,173,401 | 67 | N/A | N/A | 128514 |
| 74 | B.M. Transport LIMITED | Ireland | Clones | Fermanagh Street | Monaghan | H18 X449 | bmt.***** | 1998 | $43,117,503 | 220 | N/A | N/A | 296726 |
| 75 | Kintetsu World Express (ireland) LIMITED | Ireland | Swords | Unit 4 Horizon Logistics Park | Dublin | K67 V992 | kwe.***** | 1993 | $43,018,801 | 41 | N/A | N/A | 206718 |
| 76 | Sunway Travel LIMITED | Ireland | Dun Laoghaire | Marina House | Dublin | A96 RK31 | sunway.***** | 1990 | $42,808,528 | 53 | N/A | N/A | 159936 |
| 77 | Airtraks LIMITED | Ireland | Dublin 22 | Unit A1, Baldonnell Business Park | Dublin | D22 K0V1 | atc-logistics.***** | 1995 | $42,386,992 | 179 | N/A | N/A | 242075 |
| 78 | The Travel Department LIMITED | Ireland | Dublin | Dublin Street Baldoyle Dublin Ireland | Dublin | D02 VY52 | traveldepartment.***** | 1999 | $41,324,848 | 50 | N/A | N/A | 313199 |
| 79 | Quality Freight LIMITED | Ireland | Dublin | Dublin Street | Dublin | D01 H4C6 | qualityfreight.***** | 1990 | $41,285,662 | 36 | N/A | N/A | 164302 |
| 80 | Ascot Freight LIMITED | Ireland | Lusk | Blakes Cross | Dublin | K45 WY42 | N/A | 1988 | $40,939,343 | 145 | N/A | N/A | 137472 |
| 81 | D G Mcardle International LIMITED | Ireland | Dundalk | Callanberg | Louth | A91 WK20 | dgmcardleint.***** | 1993 | $40,767,733 | 244 | N/A | N/A | 208068 |
| 82 | Eimer Hannon Travel Services LIMITED | Ireland | Navan | The Courtyard | Meath | C15 RYV5 | hannontravel.***** | 2002 | $40,134,930 | 25 | N/A | N/A | 359954 |
| 83 | John Dalton & Sons LIMITED | Ireland | Kilkenny | Chancellors Mills | Kilkenny | R95 YYF2 | chancellorsmills.***** | 1960 | $39,424,870 | 46 | N/A | N/A | 18084 |
| 84 | Travel Counsellors (ireland) LIMITED | Ireland | Cork | Nsc Campus | Cork | N/A | N/A | 2005 | $38,444,646 | 8 | N/A | N/A | 396139 |
| 85 | Glenthorne Shipping LIMITED | Ireland | Arklow | North Beach | Wicklow | Y14 A729 | N/A | 2013 | $38,154,856 | 52 | N/A | N/A | 534431 |
| 86 | Rhenus Air And Ocean LIMITED | Ireland | Dublin | Unit 616 Kilshane Avenue | Dublin | D15 DR7V | rhenus.***** | 2001 | $37,758,709 | 39 | N/A | N/A | 342949 |
| 87 | Celtic Link Ferries (ireland) Unlimited Company | Ireland | Wexford | Kilmore Quay | Wexford | N/A | N/A | 2007 | $37,256,265 | 14 | N/A | N/A | 444796 |
| 88 | Jmc Van Trans LIMITED | Ireland | Clondalkin | Newlands Naas Road | Dublin | D22 XR66 | N/A | 1990 | $36,377,811 | 120 | N/A | N/A | 153390 |
| 89 | Hanlon Transport LIMITED | Ireland | Dundalk | Greenore | Louth | A91 NT93 | hanlontransport.***** | 1978 | $35,376,521 | 102 | N/A | N/A | 65354 |
| 90 | Dfds Logistics Contracts (ireland) LIMITED | Ireland | Dublin | Unit 14c Stadium Business Park | Dublin | D11 HH87 | dfds.***** | 2003 | $35,149,015 | 79 | N/A | N/A | 372496 |
| 91 | Hannon Logistics LIMITED | Ireland | Lusk | Coldwinters | Dublin | N/A | N/A | 2010 | $35,134,986 | 323 | N/A | N/A | 490867 |
| 92 | Gist Distribution LIMITED | Ireland | Dublin | Willsborough Industrial Estate | Dublin | D17 FV58 | gistworld.***** | 2009 | $33,970,648 | 115 | N/A | N/A | 472988 |
| 93 | Clare Distribution Services LIMITED | Ireland | Dublin 22 | Unit 9b, Kingswood Business Park Lower Baldonnell Road | Dublin | N/A | N/A | 2001 | $33,942,192 | 431 | N/A | N/A | 348388 |
| 94 | Tq Transport LIMITED | Ireland | Oldtown | Isabella | Dublin | A45 ED37 | N/A | 1949 | $33,594,614 | 101 | N/A | N/A | 348231 |
| 95 | Hendrick Global Transport Holdings LIMITED | Ireland | Oldtown | Isabella | Dublin | N/A | N/A | 2018 | $33,594,614 | 101 | N/A | N/A | 624996 |
| 96 | Beremtom LIMITED | Ireland | Kilkenny | C/o Bernard Kavanagh & Sons Ltd Bridge Garage Main Street | Kilkenny | E41 X0D2 | N/A | 2009 | $33,581,269 | 262 | N/A | N/A | 470195 |
| 97 | Michael Cronin (sand & Gravel) LIMITED | Ireland | Killarney | Coolcaslough | Kerry | V93 XX82 | N/A | 1998 | $33,205,876 | 161 | N/A | N/A | 280326 |
| 98 | Abbey Shipping LIMITED | Ireland | Arklow | North Beach | Wicklow | Y14 A729 | N/A | 2018 | $33,071,093 | 4 | N/A | N/A | 636309 |
| 99 | Wincanton Ireland LIMITED | Ireland | Dublin | Unit 1 Stadium Business Park | Dublin | N/A | fluor.***** | 1991 | $32,873,140 | 238 | N/A | N/A | 181950 |
| 100 | Champions Travel LIMITED | Ireland | Letterkenny | Portland House | Donegal | F92 CPX7 | champions-travel.***** | 2011 | $32,804,916 | 19 | N/A | N/A | 494592 |