| Joylato Ltd | Extraterritorial | 2024 |
| Joynal Ltd | Hospitality | 2019 |
| Joyner Morgan Limited | Wholesale & retail | 1971 |
| Joyridebristol Ltd | Arts & recreation | 2025 |
| Joys Property Limited | Real estate | 2020 |
| Joysol / Sash Window Specialists Bristol Ltd | Construction | 2025 |
| JP Applied Technologies Limited | Administrative & support | 2018 |
| JP Auto Solutions Limited | Wholesale & retail | 2011 |
| JP Business Consultancy Limited | Professional & scientific | 2004 |
| JP Commercial Repair Ltd | Wholesale & retail | 2020 |
| JP Destiny Thai Corner Limited | Hospitality | 2014 |
| JP Electrical & Compliance Ltd | Construction | 2026 |
| JP Finance Poland Ltd | Professional & scientific | 2024 |
| JP Grahams Limited | Wholesale & retail | 2024 |
| JP Heat Ltd | Construction | 2022 |
| JP Lomond Performance Coaching Limited | Professional & scientific | 2003 |
| JP Pipework Ltd | Professional & scientific | 2020 |
| JP Property Investing Limited | Real estate | 2025 |
| JP Property Maintenance Limited | Construction | 2020 |
| JP Testing & Assessments Ltd | Professional & scientific | 2021 |
| JP1972 Limited | Professional & scientific | 2017 |
| JP25 Management Services Ltd | Professional & scientific | 2025 |
| JPA (South West) Limited | Wholesale & retail | 2022 |
| JPA Simply Tennis LLP | | 2022 |
| JPC Building Ltd | Construction | 2019 |
| JPC Plumbing & Heating (UK) Ltd | Construction | 2008 |
| JPE Enterprises Limited | Real estate | 2017 |
| JPF Cars Ltd | Wholesale & retail | 2019 |
| JPH Analysis Ltd | Information & communication | 2019 |
| JPL Bristol Ltd | Real estate | 2026 |
| JPL Digital Ltd | Wholesale & retail | 2024 |
| JPL Sports Tours Ltd | Arts & recreation | 2017 |
| JPM Integrations Ltd | Construction | 2015 |
| JPM Interactive Ltd | Administrative & support | 2005 |
| Jpmorgan Elect PLC | Financial services | 1999 |
| Jpmorgan Japan Small CAP Growth & Income PLC | Financial services | 2000 |
| Jpmorgan MID CAP Investment Trust PLC | Financial services | 1972 |
| Jpmorgan Multi-Asset Growth & Income PLC | Financial services | 2017 |
| Jpms Holdings Ltd | Real estate | 2022 |
| Jpnexus Ltd | Other services | 2025 |
| JPS Card Store Ltd | Wholesale & retail | 2026 |
| JPS Finance & Accountancy Limited | Professional & scientific | 2018 |
| JPS Mechanical Limited | Construction | 2022 |
| JPS Property Bristol Limited | Administrative & support | 2024 |
| JPS Reliability Ltd | Professional & scientific | 2020 |
| JPS Trading Limited | Real estate | 2022 |
| Jpvb Ltd | Information & communication | 2022 |
| JPW Fencing and Decking Limited | Manufacturing | 2021 |
| JPZ Ltd | Construction | 2025 |
| JQ Engineering Design Limited | Professional & scientific | 2016 |
| JR Bidwell Ltd | Wholesale & retail | 2011 |
| JR Board Ltd | Real estate | 2017 |
| JR Carpentry & Joinery Limited | Construction | 2005 |
| JR Catering Bristol Ltd | Hospitality | 2025 |
| JR Confidence Driving Limited | Education | 2025 |
| JR E-Comm Limited | Wholesale & retail | 2025 |
| JR FC Ltd | Extraterritorial | 2013 |
| JR FOX Property Ltd | Real estate | 2025 |
| JR Land and Development Services Limited | Real estate | 2022 |
| JR Pro Investments Ltd | Real estate | 2021 |
| JR Quantum Services Limited | Professional & scientific | 2026 |
| Jragoo Properties Limited | Real estate | 2024 |
| JRB Consulting Ltd | Professional & scientific | 2021 |
| JRB Orthopaedics Ltd | Health & social care | 2018 |
| JRC Communications Ltd | Construction | 2008 |
| JRC Utilities Ltd | Construction | 2023 |
| JRCOMMERCE38 Ltd | Wholesale & retail | 2025 |
| JRD Electrical Limited | Construction | 2002 |
| JRF Distribution Limited | Wholesale & retail | 2013 |
| Jrfinancialeducation Limited | Education | 2025 |
| JRG Electrical Consulting Limited | Administrative & support | 2007 |
| JRH Technologies Limited | Professional & scientific | 2023 |
| Jrhuk Ltd | Professional & scientific | 2023 |
| JRL Storage Ltd | Transport & logistics | 2020 |
| Jroan Ltd | Health & social care | 2021 |
| JRS Family Investment Company | Financial services | 2025 |
| JRT Homes Ltd | Real estate | 2025 |
| JRW Carpentry and Building Services Ltd | Construction | 2019 |
| JRW Rental Properties Ltd | Real estate | 2025 |
| JRX Telecom Services Ltd | Information & communication | 2019 |
| JRY Consulting Ltd | Administrative & support | 2026 |
| JS and RS Group Ltd | Hospitality | 2021 |
| JS Construction Services Ltd | Professional & scientific | 2003 |
| JS Consultancy Limited | Administrative & support | 2025 |
| JS Drew Services Limited | Construction | 2023 |
| JS Living Homes SW Ltd | Real estate | 2025 |
| JS MED Limited | Health & social care | 2022 |
| JS Medical Associates Ltd | Health & social care | 2019 |
| JS Performance Cars Ltd | Wholesale & retail | 2022 |
| JS Phelps Construction Ltd | Construction | 2022 |
| JS Properties Bristol Ltd | Real estate | 2023 |
| JS Racing & Servicing Ltd | Manufacturing | 2016 |
| JS Stores Limited | Hospitality | 2019 |
| JSA Warehouse Limited | Wholesale & retail | 2021 |
| Jsaj Property Ltd | Real estate | 2019 |
| Jsales Ltd | Wholesale & retail | 2026 |
| Jsalvador Limited | Transport & logistics | 2019 |
| JSB Building and Property Maintenance Limited | Construction | 2025 |
| JSB Design Ltd | Information & communication | 2008 |
| JSC Bristol Properties Ltd | Real estate | 2023 |