| M.C.S. - Camlock Ltd. | Construction | 2011 |
| Mainprize Properties Limited | Real estate | 2001 |
| Malcolm Brown Ltd | Extraterritorial | 2011 |
| Mapleside Limited | Real estate | 1997 |
| Mapleside Properties Limited | Real estate | 1994 |
| Mariner's Court Management Company (Bridlington) Limited | Households | 1998 |
| Mark Standish Photography Limited | Arts & recreation | 2018 |
| Mason Group North Riding (International Investments) Unlimited | Professional & scientific | 2022 |
| Matlock House Residents Association Limited | Other services | 1978 |
| MBX Vehicle Wholesale Ltd | Wholesale & retail | 2025 |
| ME N U Scarborough Ltd | Hospitality | 2025 |
| Melly Group Ltd | Hospitality | 2025 |
| Meredith Holiday Cottages Ltd | Real estate | 2020 |
| MGK Robson Limited | Hospitality | 2023 |
| Microscene Limited | Manufacturing | 1995 |
| Minding the GAP Limited | Education | 2003 |
| Mitford Place Management Company Limited | Households | 2011 |
| Mjhall Ltd | Construction | 2019 |
| MPM Services Ltd | Administrative & support | 2024 |
| Mreps Trustees (NO 124) Limited | Extraterritorial | 2003 |
| Multimedia Rescue Limited | Other services | 2023 |
| Natalie Hunter Childminder Limited | Education | 2025 |
| Net-Connect Ltd | Construction | 2015 |
| Nicholsons Lettings & Management (Filey) Ltd | Real estate | 2005 |
| Nicholsons Lettings & Management Ltd | Real estate | 2001 |
| Nimble Nook Logistics Ltd | Transport & logistics | 2025 |
| NJP Renewables Ltd | Professional & scientific | 2025 |
| NO. 194 Leicester Limited | Households | 1992 |
| North Yorkshire Coast Holidays Limited | Hospitality | 2013 |
| North Yorkshire Marine Consultants Ltd | Professional & scientific | 2023 |
| Northern Powerhouse Limited | Extraterritorial | 2021 |
| Olive&Co Ltd | Real estate | 2025 |
| Overtons Quality Butchers Limited | Wholesale & retail | 2003 |
| P.S. Adhesive Systems Limited | Extraterritorial | 2016 |
| Pando Panda Ltd | Hospitality | 2021 |
| Paragon Design Solutions Ltd | Professional & scientific | 2011 |
| Parkroad (UK) Management Limited | Real estate | 2002 |
| PDN Commercials Ltd | Wholesale & retail | 2021 |
| Peninsula Property and Refurbishment Ltd | Real estate | 2025 |
| Penprop Limited | Real estate | 2017 |
| People Savi Limited | Professional & scientific | 2014 |
| Period Style Limited | Wholesale & retail | 2011 |
| Peter Milnes Motors Limited | Wholesale & retail | 2003 |
| Pinders Builders Limited | Construction | 2021 |
| Planet Games Limited | Manufacturing | 2016 |
| Plaster Coving Limited | Wholesale & retail | 2012 |
| Potato Manufacturing Science Limited | Professional & scientific | 1986 |
| Premier Properties Yorkshire Ltd | Real estate | 2024 |
| Property Safety Solutions Ltd | Households | 2025 |
| PSG Leisure Limited | Hospitality | 2020 |
| Pulsar Instruments PLC | Manufacturing | 1973 |
| Qwertyas Limited | Professional & scientific | 2012 |
| R D Mclean Mechanical Services Ltd | Construction | 2018 |
| R Harrison Fisheries Ltd | Agriculture & fishing | 2022 |
| R. L. Ware and Sons Limited | Real estate | 1975 |
| Rachel ANN Payne Limited | Extraterritorial | 2025 |
| Radhika Sanghani Limited | Information & communication | 2015 |
| Ralph Dixon Properties Limited | Real estate | 1984 |
| Rated Art Assets Ltd | Real estate | 2016 |
| Rawson Property Solutions Ltd | Real estate | 2025 |
| Reighton Commercials Ltd | Wholesale & retail | 2016 |
| Resistoneuk Limited | Construction | 2022 |
| Retford Halls & Grounds Limited | Real estate | 1938 |
| Roadside Attractions Ltd | Hospitality | 2020 |
| Robert Dale & Sons (Filey) Limited | Manufacturing | 1952 |
| Rock & Gifts NO 1 Ltd | Wholesale & retail | 2025 |
| Royal Crescent Court (Bridlington) Limited | Real estate | 2012 |
| RPW09 Ltd | Real estate | 2026 |
| Rugby Relish Ltd | Hospitality | 2026 |
| Rupert's Abode Limited | Real estate | 2024 |
| S F Stubbings Ltd | Agriculture & fishing | 2018 |
| S.I. Building & Roofing Ltd | Construction | 2004 |
| SA & SNK Properties Ltd | Real estate | 2019 |
| Sand&City Ltd | Hospitality | 2025 |
| Sawdon Pines Limited | Hospitality | 2023 |
| Scaife Engineering Limited | Professional & scientific | 2018 |
| Scaife Fabrications Limited | Construction | 2011 |
| Scarborough Icecream Ltd | Wholesale & retail | 2018 |
| Scarborough Lettings Limited | Real estate | 2022 |
| Scarborough Pottery Limited | Real estate | 1968 |
| Scarborough Road Ltd | Real estate | 2022 |
| Schuster Engineering UK Holdings Limited | Real estate | 2018 |
| Schuster Engineering UK Limited | Wholesale & retail | 2012 |
| Scott Miller Limited | Transport & logistics | 2002 |
| SCT Builders Limited | Construction | 2014 |
| SFS Rural Ltd | Agriculture & fishing | 2019 |
| Sha's Fastfood Limited | Hospitality | 2024 |
| Shirley Court Limited | Real estate | 1996 |
| Silver Star (Filey) Limited | Hospitality | 2019 |
| Simplicity Cleaning Services Ltd | Administrative & support | 2024 |
| Simplicity Properties (Yorkshire) Ltd | Hospitality | 2024 |
| Sionnaigh ABU Limited | Hospitality | 2021 |
| Skinovate Aesthetique Consultation Ltd | Wholesale & retail | 2025 |
| Skinovate Beauty Aesthetics Ltd | Other services | 2026 |
| Slime and Grime Limited | Administrative & support | 2008 |
| Smart Matches Ltd | Real estate | 2025 |
| Smith Walker Westwood Financial Consultants Ltd. | Financial services | 1991 |
| Smps Power One Limited | Professional & scientific | 2016 |
| Solid Fuel Systems Limited | Wholesale & retail | 2017 |
| South Crescent Court Limited | Real estate | 1982 |