| Scarborough Properties Ltd | Real estate | 2015 |
| Scarborough Property Maintenance Limited | Real estate | 1985 |
| Scarborough Property Solutions Limited | Real estate | 2003 |
| Scarborough Rugby Union Football Club Limited | Arts & recreation | 2010 |
| Scarborough Sea Pool CIC | Other services | 2026 |
| Scarborough Sign Installations Ltd | Construction | 2025 |
| Scarborough Snooker Centre Limited | Hospitality | 2002 |
| Scarborough Social Ltd | Hospitality | 2025 |
| Scarborough South Cliff Golf Club Limited | Arts & recreation | 1962 |
| Scarborough South Cliff Trading Limited | Arts & recreation | 2016 |
| Scarborough Studios Ltd | Arts & recreation | 2009 |
| Scarborough Sweepers & Plant Hire Ltd | Construction | 2018 |
| Scarborough Tandoori Limited | Hospitality | 2003 |
| Scarborough Theatre Company Limited | Arts & recreation | 2021 |
| Scarborough Theatre Development Trust | Real estate | 1993 |
| Scarborough Theatre Trust Limited | Arts & recreation | 1964 |
| Scarborough Trading Ltd | Wholesale & retail | 2017 |
| Scarborough Transport Ltd | Transport & logistics | 2019 |
| Scarborough Truck Parts Ltd | Wholesale & retail | 2017 |
| Scarborough TV News Ltd | Information & communication | 2012 |
| Scarborough Video Services Ltd | Information & communication | 2013 |
| Scarborough View Residents Ltd | Households | 2023 |
| Scarborough VIP Lounge Limited | Wholesale & retail | 2015 |
| Scarborough Wellness CIC | Other services | 2025 |
| Scarborough Wheel Alignment Ltd | Wholesale & retail | 2022 |
| Scarborough Youth Theatre CIC | Arts & recreation | 2021 |
| Scarborough, Whitby and Ryedale Mind | Health & social care | 2009 |
| Scarboroughs Paint and Body Repairs Limited | Wholesale & retail | 2022 |
| Scarboroughs Paints and Panel Supplies Ltd | Wholesale & retail | 2022 |
| Scarlett Elizabeth Ltd | Other services | 2024 |
| SCD Trustee Limited | Professional & scientific | 2025 |
| Scholars Bar Ltd | Real estate | 2005 |
| Scifi Scarborough Ltd | Arts & recreation | 2013 |
| Scofinn Ltd | Extraterritorial | 2024 |
| Scothern Groundworks Ltd | Construction | 2021 |
| Scott Jackson Electrical Services Ltd | Construction | 2023 |
| Scott-Hamlin Limited | Hospitality | 1987 |
| SCS Groundscare Ltd | Administrative & support | 2014 |
| SDY (UK) Limited | Construction | 2013 |
| Sea CUT Limited | Real estate | 2026 |
| Sea View Apartments Limited | Hospitality | 2017 |
| Seagrown Limited | Agriculture & fishing | 2018 |
| Seamer Centre Limited | Hospitality | 2023 |
| Seamer Scarborough Limited | Hospitality | 2025 |
| Seapark Mourne Ltd | Financial services | 2023 |
| Seascope Fisheries Research Limited | Professional & scientific | 2012 |
| Seaside Hideaway Holidays Ltd | Hospitality | 2023 |
| Seaside Hot Tubs Ltd | Wholesale & retail | 2020 |
| Seaside Paradise Apart-Hotel Ltd | Hospitality | 2025 |
| Seaside Paradise Ltd | Real estate | 2023 |
| Seaside Rentals Limited | Real estate | 2019 |
| Seaside Sales and Lettings Limited | Real estate | 2019 |
| Seaside Salon Limited | Other services | 2012 |
| Seaside Salt (Speech and Language Therapy) CIC | Health & social care | 2024 |
| Seaside Snug Properties Ltd | Real estate | 2026 |
| Seaside Stock Ltd | Wholesale & retail | 2024 |
| Seaside Trading Group Ltd | Wholesale & retail | 2025 |
| Seaview (Scarborough) Limited | Real estate | 2015 |
| Seawood Lettings Limited | Hospitality | 2024 |
| Secret Spot Ltd | Wholesale & retail | 2014 |
| Secret SUB Rosa C.I.C. | Arts & recreation | 2024 |
| SECRETS2SCALING Ltd | Professional & scientific | 2024 |
| Secure & Fast Transport Ltd | Wholesale & retail | 2021 |
| Secure and Confidential Documents Limited | Manufacturing | 2011 |
| Secure Documents Limited | Real estate | 2005 |
| Securegreen Property Management Limited | Professional & scientific | 1991 |
| Securewise Security UK Ltd | Administrative & support | 2025 |
| Seedlings Nursery and Pre-School Limited | Education | 2021 |
| Seismic Services Limited | Professional & scientific | 2012 |
| Seize Blackwell Developments Ltd | Construction | 2023 |
| Seize Group Holdings Ltd | Financial services | 2023 |
| Seize Group Ltd | Construction | 2022 |
| Sekstant NO 1 Ltd | Extraterritorial | 2020 |
| Selbourne Hotel Limited | Hospitality | 2021 |
| Selfstorspace Limited | Transport & logistics | 2025 |
| Sen-Active Community Glow CIC | Education | 2025 |
| Send Support Competitions Ltd | Arts & recreation | 2026 |
| Senior Glass Systems Limited | Manufacturing | 1995 |
| Senior Holdings (Scarborough) Limited | Financial services | 2004 |
| Seravat Limited | Construction | 2025 |
| Serene Studios: Reform & Flow Ltd | Arts & recreation | 2025 |
| Serenwood Limited | Information & communication | 2010 |
| Seriously Spoilt Ltd | Arts & recreation | 2026 |
| Servertastic Limited | Information & communication | 2003 |
| Service Line Schools Coaching Limited | Education | 2019 |
| Seven Blenheim Terrace Management Co. Limited | Real estate | 2023 |
| Seven Coffee House Ltd | Hospitality | 2024 |
| Seventy Four Racing Limited | Hospitality | 2019 |
| SEX Box Club Ltd | Wholesale & retail | 2023 |
| Seymour & Inman Limited | Professional & scientific | 2005 |
| SFA (Management) Limited | Real estate | 2023 |
| SFA (Scarborough) Limited | Real estate | 2021 |
| SGJ Fuels Limited | Wholesale & retail | 2025 |
| SH Energy Ltd | Construction | 2025 |
| Sharp Plasterers Limited | Construction | 2009 |
| Sharpe Actuarial Limited | Financial services | 2006 |
| Shaw Holdham Ltd | Real estate | 2017 |
| Shaw's Electrical Services Limited | Real estate | 2021 |
| Shaw's Trailer Park (Harrogate) | Real estate | 1963 |
| Shaw's Trailer Park Harrogate (Holdings) | Extraterritorial | 1999 |