| Firmen Service International Ltd | Administrative & support | 2017 |
| Firmrock Associates Ltd | Real estate | 2004 |
| Firmseo Ltd | Education | 2021 |
| Firs Hall Care Home Ltd | Health & social care | 2007 |
| First & Only Events Limited | Arts & recreation | 2014 |
| First 4 Aesthetics Ltd | Wholesale & retail | 2024 |
| First 4 Service Group Limited | Extraterritorial | 2021 |
| First A1 Limited | Administrative & support | 2017 |
| First Accounting Advisors Limited | Professional & scientific | 2024 |
| First Acre Limited | Other services | 2016 |
| First AI Group Ltd | Information & communication | 2024 |
| First AID & Safety Consultancy Ltd | Wholesale & retail | 2023 |
| First AID and More Limited | Professional & scientific | 2010 |
| First AID for ALL Limited | Education | 2009 |
| First AID Medical & Command Training Ltd | Education | 2022 |
| First AID Professionals MCR Ltd | Other services | 2024 |
| First AID Roofing & Guttering Ltd | Construction | 2025 |
| First AID Skills Training North West Limited | Education | 2018 |
| First and Only Airsoft Limited | Arts & recreation | 2010 |
| First Andover Limited | Extraterritorial | 2016 |
| First Angel Ltd | Wholesale & retail | 2025 |
| First Arrow Holdings Limited | Administrative & support | 2023 |
| First Arrow Limited | Professional & scientific | 2017 |
| First Asian Support Trust (Fast) Ltd | Administrative & support | 2001 |
| First Barber Limited | Other services | 2020 |
| First Book 2 PVT Ltd | Wholesale & retail | 2025 |
| First Book PVT Ltd | Wholesale & retail | 2024 |
| First Call Resolution Ltd | Extraterritorial | 2023 |
| First Chauffeur Services Ltd | Transport & logistics | 2022 |
| First Choice Accountants Ltd | Professional & scientific | 2014 |
| First Choice Auto Services Ltd | Wholesale & retail | 2025 |
| First Choice Dental Limited | Health & social care | 2006 |
| First Choice Design and Developments Limited | Construction | 2014 |
| First Choice Energy Group Ltd | Construction | 2025 |
| First Choice Food Ltd | Hospitality | 2022 |
| First Choice Home Service Ltd | Administrative & support | 2026 |
| First Choice Importer Ltd | Wholesale & retail | 2024 |
| First Choice Nursery Ltd | Education | 2022 |
| First Choice Roofing Joiners Ltd | Manufacturing | 2024 |
| First Claims Group Ltd | Financial services | 2013 |
| First Class Child Care Limited | Education | 1997 |
| First Class Facilities Group Ltd | Administrative & support | 2025 |
| First Class Hygiene Suppliers Ltd | Public administration | 2025 |
| First Class Management Services Ltd | Information & communication | 2025 |
| First Clinical Limited | Administrative & support | 2010 |
| First Cooper Housing Limited | Real estate | 2021 |
| First Dispute Management Limited | Professional & scientific | 2018 |
| First Electrical Northwest Ltd | Construction | 2011 |
| First Europe Education (FEE) Ltd | Information & communication | 2024 |
| First Financial Limited | Financial services | 1964 |
| First for Events Ltd | Arts & recreation | 2018 |
| First for Tyres Ltd | Wholesale & retail | 2008 |
| First Friendly Finance Ltd | Wholesale & retail | 2021 |
| First Genuine Limited | Wholesale & retail | 2018 |
| First Global Solutions Limited | Financial services | 2019 |
| First Grabs Limited | Other services | 2024 |
| First Homes Partnership (North West) LLP | | 2008 |
| First Hydro Finance PLC | Professional & scientific | 1995 |
| First Insight Consulting Ltd | Administrative & support | 2024 |
| First International Services Limited | Other services | 2022 |
| First Kourage Ltd | Wholesale & retail | 2025 |
| First Law Solicitors Limited | Professional & scientific | 2019 |
| First Leading for Investment Ltd | Other services | 2022 |
| First Manchester Cars Ltd | Wholesale & retail | 2025 |
| First Media Consulting Ltd | Administrative & support | 2017 |
| First National Shipping Co. Limited | Extraterritorial | 2019 |
| First Ocean Limited | Wholesale & retail | 2020 |
| First Option Accounting Limited | Professional & scientific | 2013 |
| First OTM Care Ltd | Health & social care | 2015 |
| First Paye Consultants Limited | Administrative & support | 2022 |
| First Point Commercials Limited | Wholesale & retail | 2012 |
| First Point Company International Ltd | Wholesale & retail | 2025 |
| First Prep Ltd | Health & social care | 2020 |
| First Property 01 Ltd | Real estate | 2024 |
| First Racing Parts Ltd | Extraterritorial | 2014 |
| First Rate Homes Limited | Real estate | 2018 |
| First Real Estates Finance Ltd | Financial services | 2025 |
| First Real Estates Group Ltd | Financial services | 2025 |
| First Real Estates Investments Ltd | Financial services | 2025 |
| First Real Estates-Uk Ltd | Construction | 2024 |
| First Reallive Ltd | Extraterritorial | 2024 |
| First Regional Accounting Limited | Professional & scientific | 2014 |
| First Rescue Training and Supplies Ltd | Wholesale & retail | 2010 |
| First Resort Limited | Administrative & support | 2003 |
| First Response K9 Limited | Administrative & support | 2021 |
| First Rise Ltd | Administrative & support | 2022 |
| First Select Financial Solutions Ltd | Financial services | 2023 |
| First Seven Limited | Other services | 2024 |
| First Splash Limited | Arts & recreation | 2022 |
| First Step (Ancoats) Limited | Real estate | 2014 |
| First Step (Openshaw) Ltd | Construction | 2012 |
| First Step Assets Limited | Real estate | 2025 |
| First Step Childminders Ltd | Health & social care | 2024 |
| First Step Community Bereavement Ltd | Financial services | 2019 |
| First Step Group (Two) Limited | Construction | 2022 |
| First Step Holdings Ltd | Real estate | 2020 |
| First Step Select Limited | Education | 2020 |
| First Steps Together Care Services Ltd | Health & social care | 2024 |
| First Steps Together Ltd | Education | 2022 |
| First Steps Together Transport Services Ltd | Transport & logistics | 2025 |