The largest data processing, hosting and related activities companies in Harrow

Ranked by shareholders' funds, from 63 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.

Data processing, hosting and related activities in Harrow top 20

1. DATABASE MANAGEMENT SOLUTIONS LIMITED

£2,460,774 03638711 since 1998
2. JOBSGOPUBLIC LIMITED

£1,302,775 07750971 since 2011
3. SPIDER00 LTD

£963,262 12689014 since 2020
4. ARRAY EDISCOVERY (UK) LIMITED

£923,558 07108843 since 2009
5. LUMILINKS GROUP LTD

£752,058 11557839 since 2018
6. INTANDEM SOLUTIONS LIMITED

£509,682 04655617 since 2003
7. MU SIGMA LIMITED

£385,901 06711615 since 2008
8. MILLIMETRIC ANALYTICS AND MACHINE LEARNING LTD

£223,829 11168376 since 2018
9. VERTEX-UK LTD

£161,356 12085483 since 2019
10. GOLDEN SPIRAL AI LIMITED

£149,724 15600436 since 2024
11. JAISOMNATH LTD

£108,508 07818591 since 2011
12. GNT DATA CENTRE LTD

£90,000 10272393 since 2016
13. IS SOLUTIONS AND SERVICES LTD

£88,874 15052360 since 2023
14. REVISO CLOUD ACCOUNTING LIMITED

£40,850 09832667 since 2015
15. DEDHIA LTD

£37,059 13694996 since 2021
16. ALGORITHMIX LIMITED

£33,380 10321224 since 2016
17. INOVA DIGITAL SOLUTIONS LTD

£32,862 16344244 since 2025
18. ISLET GROUP LIMITED

£24,251 04083032 since 2000
19. CHARTICA LTD

£23,945 15603151 since 2024
20. PITCHSPACE LTD

£19,544 13228700 since 2021