| Ab Agri Limited00193800 | OM0035390 | 29 Aug 2023 | |
| Ainscough Crane Hire Ltd03245223 | OM1116473 | 13 Jul 2023 | HS2 |
| Air Products PLC00103881 | OM0003000 | 26 Nov 2021 | |
| Automobile Association Developments Ltd01878835 | OM1124261 | 29 Mar 2018 Founder member | |
| Bfs Group Limited00239718 | OM2073506 | 7 Dec 2017 Founder member | |
| Bluebird Buses LimitedSC019039 | PM0000005 | 25 Jan 2019 | |
| Carr's Flour Mills Limited00480341 | OM1047683 | 19 Mar 2026 | |
| Copart UK Ltd00929621 | OM0028996 | 28 Sep 2026 | |
| DHL Supply Chain Limited00528867 | OM0023264 | 27 Jul 2018 | |
| Dpdgroup UK Ltd00732993 | OM0031146 | 25 Jan 2018 Founder member | |
| East Coast Buses LimitedSC208702 | PM1050765 | 25 Oct 2019 | |
| Edinburgh Bus Tours LtdSC230326 | PM1007722 | 25 Oct 2019 | |
| Elis UK Limited00228604 | OM2017223 | 15 Dec 2017 Founder member | |
| Eve Coaches Ltd.SC229701 | PM1036880 | 20 May 2025 | |
| Ferguson Transport (Spean Bridge) LimitedSC156545 | OM0034061 | 9 Apr 2018 Founder member | |
| Fife Scottish Omnibuses LtdSC026126 | PM0000004 | 25 Jan 2019 | |
| First Aberdeen LtdSC097420 | PM0000631 | 21 Jun 2018 | |
| First Glasgow (No.1) LimitedSC097299 | PM0000001 | 24 Jan 2023 | |
| First Glasgow (NO2) LtdSC127012 | PM0000006 | 24 Jan 2023 | |
| Fowler Welch Limited01001101 | OM2059173 | 6 Mar 2023 | |
| Gist Limited00502669 | OM0029266 | 23 Jul 2024 | |
| Greenergy Flexigrid Limited07581532 | OM1110819 | 6 Dec 2019 | |
| Gxo Logistics UK LimitedSC037270 | OM0017978 | 7 Jun 2018 | |
| Halcyon Tankers Limited11585445 | OM2061682 | 8 Sep 2025 | |
| John Lewis PLC00233462 | OM0009351 | 15 Dec 2017 Founder member | |
| John Mitchell (Grangemouth) LtdSC053963 | OM0012843 | 3 Aug 2021 | |
| Lothian Buses LimitedSC096849 | PM0000002 | 25 Oct 2019 | |
| Lothian Coaches LimitedSC127507 | PM2009898 | 25 Oct 2019 | |
| Lothian Country Buses LimitedSC127512 | PM0002883 | 25 Oct 2019 | |
| Mac Tours LtdSC225977 | PM1004999 | 25 Oct 2019 | |
| Majestic Tours Edinburgh LtdSC127509 | PM1064277 | 25 Oct 2019 | |
| Masstock Arable (UK) Limited02387531 | OM1029658 | 9 Jul 2021 | |
| Maynes Coaches LtdSC264683 | PM1033727 | 4 Jan 2024 | PSV private hire |
| McPherson LtdSC218508 | OM1000129 | 28 Aug 2024 | |
| Montgomery Transport LtdNI012639 | OM1068805 | 20 Mar 2018 Founder member | |
| New Era Fuels Ltd07378045 | OM2075921 | 11 Dec 2025 | |
| Oxalis Logistics UK Limited01164085 | OM0027318 | 16 Jan 2020 | |
| Schenk UK Ltd02316301 | OM1141528 | 24 Jul 2020 | |
| Speedy Asset Services Ltd06847930 | OM1095074 | 25 Jan 2018 Founder member | |
| Sysco GB Limited02035315 | OM1015303 | 10 Apr 2025 | |
| Tesco Distribution Ltd02972724 | OM0034002 | 4 Jun 2021 | |
| Travis Perkins PLC00824821 | OM1087424 | 17 Nov 2023 | |
| Warburtons Ltd00178711 | OM0034342 | 26 Jun 2020 | |
| Western Buses Limited00131237 | PM0000008 | 25 Jan 2019 | |
| Wincanton Holdings Limited02155951 | OM2071137 | 7 Dec 2017 Founder member | |
| Wm Pringle & Son Ltd.SC219111 | OM1005019 | 6 Jul 2022 | |
| Wolseley UK Limited00636445 | OM0006232 | 1 Aug 2022 | |
| Wren Kitchens Limited06799478 | OM1135239 | 16 Jun 2021 | |