The largest other research and experimental development on natural sciences and engineering companies in Harrow

Ranked by shareholders' funds, from 32 active companies in the HA postcode area.

"Largest" here means shareholders' funds — what the most recent balance sheet says the company is worth. It is the only measure of size filed by enough companies to rank on.

Companies that have never filed accounts cannot appear, however big they are. Figures are as filed at Companies House and can be a year or more old.

Other research and experimental development on natural sciences and engineering in Harrow top 20

1. AMIN MEDICARE LIMITED

£383,515 11462249 since 2018
2. HADLEY HEALTH LTD

£297,817 13935863 since 2022
3. JD MARINE INTERNATIONAL LTD

£183,235 13721114 since 2021
4. CLINIKAL LTD

£172,221 08605476 since 2013
5. GTO AUTOMOTIVE LIMITED

£160,397 02839316 since 1993
6. CYBROTECH LIMITED

£155,889 05269790 since 2004
7. SUBTERRANE LTD

£102,492 11149712 since 2018
8. PHOENIX PHARMDEVICE LTD

£101,675 11971629 since 2019
9. OXFORD BIOSENSORS LIMITED

£50,865 11488221 since 2018
10. POWER PLANNERS INTERNATIONAL LIMITED

£46,945 06363482 since 2007
11. RESEARCH MATTERS OF UK LIMITED

£39,277 10052772 since 2016
12. INSPIRED CLINICAL SOLUTIONS LTD

£34,756 15680416 since 2024
13. UMMACH LIMITED

£33,918 14294908 since 2022
14. MULSYS LIMITED

£26,671 04692353 since 2003
15. RECO MEDICAL LTD

£25,016 12169122 since 2019
16. DHANVANTARI CLINICAL SERVICES LIMITED

£22,753 08733257 since 2013
17. SUPER BLOOM LTD

£1,205 12017704 since 2019
18. AEROFT LIMITED

£1,051 09410063 since 2015
19. AVR CARBON R & D LIMITED

£100 12753579 since 2020
19. BOOKTUCK LIMITED

£100 05597999 since 2005