| A L Jennings Limited | Other services | 2008 |
| A Mountford Ltd | Administrative & support | 2019 |
| A. E. Lenton (Estates) Limited | Agriculture & fishing | 1954 |
| A.E.Dennett & SON Limited | Agriculture & fishing | 1964 |
| A1 Consultancy Ltd | Health & social care | 2023 |
| A1 Trans Ltd | Transport & logistics | 2023 |
| Absolute Maths Limited | Education | 2020 |
| Absolute Maths Marking Limited | Education | 2025 |
| Acme Internet Ltd | Information & communication | 2016 |
| Adhdifferent Path Coaching Limited | Education | 2026 |
| Aesthetics by Sarah W Limited | Other services | 2022 |
| AIB Electrical Services Ltd | Construction | 2021 |
| Alan Hawkes (Farms) Limited | Agriculture & fishing | 1976 |
| Alexandra Plowright Consulting Ltd | Professional & scientific | 2018 |
| Andrew Verdun Harrison Consulting Limited | Professional & scientific | 2015 |
| Apple Court Services ( Cambs ) Limited | Construction | 2009 |
| Archways (Lincs) Limited | Wholesale & retail | 2013 |
| Asset Recovery Network (UK) Limited | Financial services | 2017 |
| Aswardby Park Farms Limited | Agriculture & fishing | 1982 |
| Autotech Lincs Limited | Wholesale & retail | 2019 |
| Averys (Radnage) Limited | Agriculture & fishing | 1938 |
| B & S Import & Export Limited | Extraterritorial | 2014 |
| B.A.L.D. Trucking Ltd | Transport & logistics | 2020 |
| Badley Geoscience Group Limited | Financial services | 2025 |
| Badley Geoscience Holdings Limited | Financial services | 2021 |
| Badley Geoscience Limited | Professional & scientific | 2002 |
| Barley Feeds Ltd | Wholesale & retail | 2012 |
| Beijingdragon Hotel . Ltd | Hospitality | 2015 |
| Benfori Ltd | Wholesale & retail | 2026 |
| Best Mega Hand Car Wash Ltd | Administrative & support | 2026 |
| Beyond Touch Ltd | Professional & scientific | 2013 |
| Black Sun Technology Limited | Information & communication | 1991 |
| Blacksmith Arms Welton Ltd | Hospitality | 2018 |
| Blue Stone Trees Ltd | Administrative & support | 2017 |
| Blueberry Community and Enterprise Training CIC | Administrative & support | 2013 |
| Bodebi LLP | | 2020 |
| Boston Road Limited | Wholesale & retail | 2011 |
| Boston Trade Frames Limited | Manufacturing | 2004 |
| Bowen Architects Limited | Professional & scientific | 2017 |
| Bowman's Ridge Management Company Limited | Households | 1995 |
| Bpri Consultancy Services Ltd | Information & communication | 2021 |
| Brit-Ad International Ltd | Professional & scientific | 2024 |
| Brit-Ad Ltd | Construction | 2019 |
| Buitelaar Warden Group Ltd | Extraterritorial | 2017 |
| Bump Careers Limited | Information & communication | 2017 |
| Burgh Logistics Ltd | Transport & logistics | 2014 |
| Burton & Candlesby Limited | Financial services | 2023 |
| Burwell Pheasantries Limited | Agriculture & fishing | 2005 |
| Bush Sidings Management Limited | Professional & scientific | 2021 |
| Butterfly Childcare Ltd | Education | 2015 |
| C.F. Whaler Limited | Manufacturing | 1988 |
| Capital Accruement and Management Ltd | Real estate | 2025 |
| Carnaby Datacomms Limited | Information & communication | 2017 |
| Causley Farming Limited | Agriculture & fishing | 1997 |
| Central Cars Skegness Ltd | Transport & logistics | 2023 |
| Central Cars Spilsby Ltd | Transport & logistics | 2025 |
| Choice Resorts Ltd | Hospitality | 2024 |
| Chris Bridges Agricultural Ltd | Manufacturing | 2016 |
| Christopher Baxter Limited | Professional & scientific | 2003 |
| Church Stay Ltd | Hospitality | 2021 |
| Cineline Studio Ltd | Wholesale & retail | 2025 |
| Cleanspace Cleaning Solution Ltd | Administrative & support | 2026 |
| Clock Tower Films Limited | Arts & recreation | 2018 |
| Complete Fleet UK Ltd | Other services | 2021 |
| Cooper Bros. (Potatoes) Limited | Agriculture & fishing | 1953 |
| Country Dream Ltd | Other services | 2020 |
| Countryside Plants Ltd | Wholesale & retail | 2013 |
| Crane Hire Lincolnshire Ltd | Administrative & support | 2024 |
| Cranlux Ltd | Real estate | 2022 |
| Cygnet House Dental Studio Limited | Health & social care | 2005 |
| D Hodges Propeties Ltd | Real estate | 2020 |
| Dave’S Motorsports Limited | Wholesale & retail | 2022 |
| DBG Limited | Administrative & support | 2006 |
| Dexion East Midlands Limited | Extraterritorial | 2003 |
| DM Pebors Ltd | Health & social care | 2024 |
| DPH Building & Landscaping Limited | Construction | 2022 |
| Drake's Gelato Ltd | Wholesale & retail | 2024 |
| DTR Spilsby Limited | Hospitality | 2021 |
| E.J.Tong & Sons(Engineering)Limited | Extraterritorial | 1964 |
| E.W. Bowser & SON Limited | Agriculture & fishing | 1947 |
| E.W.R. (EAR WAX Removal) Ltd | Health & social care | 2026 |
| Earth Wind & Sun Limited | Extraterritorial | 2013 |
| East Coast Estates Limited | Real estate | 2004 |
| East Kirkby General Store Limited | Wholesale & retail | 2023 |
| Eco Gardening Limited | Administrative & support | 2025 |
| Ecolink Tech Ltd | Information & communication | 2026 |
| Edan Farms Limited | Construction | 2020 |
| Eezee IT Ltd | Information & communication | 2014 |
| Elite Traditional Plastering Ltd | Construction | 2025 |
| Elms Property Development Ltd | Construction | 2018 |
| EML Collective Ltd | Wholesale & retail | 2026 |
| END to END Labels Limited | Manufacturing | 1982 |
| Enzo's Barbers Limited | Other services | 2025 |
| Europa Fisheries Ltd | Hospitality | 2018 |
| Evolution SET and Stage Ltd | Construction | 2019 |
| Fairfield Place Partney Ltd | Households | 2020 |
| Farmers Beetroot Ketchup Ltd | Manufacturing | 2026 |
| Farr Construction Limited | Construction | 2025 |
| Faulkner’S Transport Services Ltd | Transport & logistics | 2021 |
| Featherwood Limited | Agriculture & fishing | 1984 |