| My Fuel Meals Ltd | Manufacturing | 2025 |
| Nellany and Company LLP | | 2013 |
| Nellany Solicitors Limited | Professional & scientific | 2024 |
| New World Taverns Ltd | Hospitality | 2020 |
| Ninotel Limited | Information & communication | 2014 |
| NMM Access Services Ltd | Other services | 2016 |
| Nortech Electrical Ltd. | Construction | 2000 |
| North Ayrshire Forum on Disability | Health & social care | 2010 |
| North Ayrshire Women's AID | Health & social care | 2009 |
| Oceana Subsea Ltd | Professional & scientific | 2015 |
| Oliver Sales & Lettings Ltd | Real estate | 2024 |
| Ollies Properties Ltd | Real estate | 2024 |
| Omega Service Centre Limited | Administrative & support | 2025 |
| One Plus Scot Ltd | Wholesale & retail | 2024 |
| Pangolin ILS Consultancy Limited | Professional & scientific | 2026 |
| Partners in Personalisation CIC | Administrative & support | 2013 |
| Paws and Play Dog Creche Ltd | Other services | 2025 |
| Pbbl Limited | Administrative & support | 2014 |
| Pegasus Electrical Marine Ltd | Construction | 2015 |
| Pensionplan Properties Ltd | Real estate | 2025 |
| Periperi 21 Ltd | Hospitality | 2025 |
| Pmg.Mcgonigle Ltd | Real estate | 2020 |
| PP Hand Car Wash Ltd | Administrative & support | 2025 |
| Prch Ltd | Construction | 2017 |
| Prize Place Competition Ltd | Arts & recreation | 2025 |
| PRM Financial Services Limited | Financial services | 2016 |
| Promise Property Ltd | Real estate | 2025 |
| Promoting Inclusion Through Sport CIC | Other services | 2023 |
| Puff 'N' Tech Ltd | Wholesale & retail | 2025 |
| Qclose Limited | Information & communication | 2014 |
| Quixotic Engineering Ltd | Manufacturing | 2022 |
| R & L Saltcoats Limited | Wholesale & retail | 2024 |
| Rail Line Services Ltd | Transport & logistics | 2017 |
| Ramsay GAS Central Heating Services Ltd | Construction | 2017 |
| Rayaan & Rameen Ltd | Health & social care | 2022 |
| Rayyan 1 Enterprises Ltd | Wholesale & retail | 2018 |
| Rcam Joinery Ltd | Construction | 2025 |
| Ready NOW Properties Limited | Real estate | 2013 |
| Reidryanelectrical Ltd | Construction | 2025 |
| Retrofit Assessor and Coordinator Services Ltd | Construction | 2022 |
| RGH Financial Services Ltd | Financial services | 2023 |
| Ripple Effect Saltcoats Ltd | Health & social care | 2024 |
| Robb Tree Care Limited | Agriculture & fishing | 2018 |
| Rockland Solutions Ltd | Construction | 2021 |
| Rosie Beauty Limited | Other services | 2019 |
| RSL Roofing (Glasgow) Ltd | Construction | 2012 |
| RST Saltcoats Ltd | Wholesale & retail | 2024 |
| Ruru Traders Ltd | Hospitality | 2020 |
| Ryan & Sun Limited | Other services | 2016 |
| Ryan Group Management Limited | Real estate | 2023 |
| Rycon Marine Ltd | Professional & scientific | 2012 |
| S Mcgowan Consultancy Ltd | Professional & scientific | 2026 |
| S Watson Electrical Services Ltd | Construction | 2020 |
| Saint Judes Bar Group Limited | Hospitality | 2024 |
| Salcoats Barber Ltd | Other services | 2026 |
| Saltcoats Buffet Limited | Hospitality | 2026 |
| Saltcoats Hardware Store Ltd | Wholesale & retail | 2025 |
| Saltire Publishing Limited | Information & communication | 2024 |
| Sandstone Press Ltd. | Information & communication | 2002 |
| Saxen Security Ltd. | Construction | 2012 |
| SC Business Gateway Ltd | Wholesale & retail | 2015 |
| SCG Leisure Limited | Financial services | 2021 |
| Scott Stirling Services Ltd | Health & social care | 2019 |
| Scott Wholesale LP | | 2013 |
| Sea Sparks Ltd | Mining & quarrying | 2014 |
| Selecta Glasgow Limited | Manufacturing | 2017 |
| Serafini Retail Limited | Wholesale & retail | 2013 |
| SEW Nice Ltd. | Wholesale & retail | 2011 |
| Sg&Sm Ltd | Administrative & support | 2025 |
| Sharphill Store Ltd | Wholesale & retail | 2025 |
| Shettleston MOT Station (Glasgow) Ltd | Manufacturing | 2015 |
| Shmonty Ltd | Wholesale & retail | 2023 |
| Shuttle Leisure Limited | Arts & recreation | 1987 |
| Sida (Ayrshire) Limited | Real estate | 2007 |
| Signature Golf Events Ltd | Administrative & support | 2025 |
| SKS Cathcart Ltd | Hospitality | 2020 |
| Sleezzz Bedzzz Ltd | Wholesale & retail | 2026 |
| Slimjims Saltcoats Limited | Hospitality | 2025 |
| Smooth Aesthetics by Emma Ltd | Other services | 2025 |
| Speed of Light Digital Ltd | Professional & scientific | 2022 |
| Spot Retail Holding LP | | 2021 |
| Srnty Soul CIC | Other services | 2024 |
| Staypress (Scotland) Ltd | Other services | 2022 |
| Stephi Lynn Beauty Ltd | Other services | 2022 |
| Stewart Cleaning Services Limited | Other services | 2019 |
| Subdeep Ltd | Hospitality | 2021 |
| Sunny Side UP Free Range Eggs Ltd | Wholesale & retail | 2016 |
| Talava Commerce LP | | 2014 |
| Tasik Foods Limited | Hospitality | 2026 |
| Tasties Saltcoats Ltd | Hospitality | 2025 |
| Taylor & Henderson (Scotland) Ltd | Real estate | 2022 |
| Taylor & Henderson Legal Ltd | Professional & scientific | 2024 |
| Taylor & Henderson LLP | | 2017 |
| Taylor & Henderson Trustees Limited | Professional & scientific | 2021 |
| Taylor Flanagan Ltd. | Professional & scientific | 2014 |
| TF Scotland Properties Limited | Real estate | 2022 |
| THE Animal Zone Ltd | Wholesale & retail | 2022 |
| THE Ashgrove Collection Ltd | Real estate | 2026 |
| THE Ayrshire Community Trust | Information & communication | 2001 |
| THE Fryer Saltcoats Ltd | Hospitality | 2018 |