Biggest companies in Harrow 2026

Companies
149
Total revenue
£2.55bn
Total jobs
10,755

Biggest companies in Harrow by revenue 2026

Top filers by latest reported turnover

# Company Revenue Employees
01 GALLDRIS SERVICES LTD £148M 118
02 TOUREEN CONTRACTORS LIMITED £128M 146
03 LORNE STEWART PLC £107M 564
04 RTC EDUCATION LTD £87M 681
05 JB STRUCTURES LTD £83M 19
06 MULTI TRADE LINKS (UK) LTD £83M 5
07 CENTRUM INTERNATIONAL LIMITED £72M 31
08 STANMORE QUALITY SERVICES LIMITED £67M 248
09 ORANGE CLOUD TOPCO LIMITED group accounts PE-backed social care holdco £64M 432
10 SPAR (UK) LIMITED £63M 87
11 CHART FORTE HOLDINGS LTD group accounts £58M 0
12 DRUGSRUS LIMITED £56M 105

Biggest employers in Harrow

Top filers by latest reported headcount

Most profitable companies in Harrow 2026

Top operating filers by latest pre-tax profit

# Company Pre-tax profit Employees
01 SPECIALTY MGA UK LIMITED £28M 30
02 GALLDRIS SERVICES LTD £17M 118
03 HAEMONETICS LIMITED £9M 51
04 JB CONSTRUCTION GROUP LTD group accounts £9M 19
05 DRUGSRUS LIMITED £8M 105
06 GLOBAL MERCANTILE LTD £7M 38
07 TOUREEN CONTRACTORS LIMITED £7M 146
08 RTC EDUCATION LTD £6M 681
09 INNES REDMOND LTD £6M 39
10 INCOS LIMITED £3M 42
11 STANMORE QUALITY SERVICES LIMITED £3M 248
12 MAINLINE (1982) LIMITED £3M 45

Best-paid boards in Harrow

Highest directors' remuneration disclosed

# Company Directors' pay Employees
01 HEATHLAND WHITEFRIARS FEDERATION £1M 276
02 LORNE STEWART PLC £1M 564
03 RTC EDUCATION LTD £1M 681
04 SPAR (UK) LIMITED £1M 87
05 ORTHENE CHEMICALS LIMITED £1M 76
06 STANMORE QUALITY SERVICES LIMITED £795,483 248
07 TITHE ACADEMY £766,860 226
08 GALLDRIS SERVICES LTD £553,700 118
09 JB STRUCTURES LTD £531,200 19
10 OLIVEWOOD LIMITED £466,188 27
11 AMAROX LIMITED £438,000 34
12 BSN SOCIAL CARE LTD £412,282 41

Directors' remuneration as disclosed in filed accounts. Group filings may report key-management-personnel compensation, which is broader than the board; LLP members' profit share is excluded. Treat as "highest disclosed", not a like-for-like board ranking.

Companies ranked from their latest filed accounts at registered offices in Harrow. Registered office is where a company files, which is not always where it trades — see the badges. Implausible outliers are excluded. Snapshot from Companies House.