4,905 active companies are registered in Sidcup with Companies House. Out of 5,825 companies ever registered here, 480 are no longer active — a 84% survival rate. Business formation remains steady, with 49.7% of current companies established since 2020. Over half (59%) of active companies were formed since 2020, making this one of the UK's fastest-growing business locations. The most common industry sector is other business support service activities n.e.c., with 531 companies. Sidcup is home to 44 FCA-regulated firms and 38 registered charities. Companies here hold 168 government contracts worth £472.4M in total. The average company age is 8.5 years. The earliest company registration in Sidcup dates back to 1922.
Source: Companies House register via UVAGATRON, September 2026
A diverse local economy with no single sector accounting for more than 15% of businesses.
The average active company in Sidcup is 8.5 years old. There are 44 <Link href="/glossary/fca-financial-conduct-authority">FCA-regulated firms</Link> in the area. 38 registered charities operate locally.
Companies in Sidcup have been awarded 168 government contracts with a combined value of £472.4M. See the Top Government Contractors report.
There are 4,905 active companies registered in Sidcup, out of 5,825 total. 480 (8%) are no longer active.
The top industries in Sidcup include Other business support service activities n.e.c. (531 companies), Buying and selling of own real estate (325 companies), Other letting and operating of own or leased real estate (231 companies).
49.7% of currently active companies in Sidcup were incorporated since 2020, indicating strong recent growth.
Our database contains 31,663 data signals across 11 categories for active companies in Sidcup. The largest category is Governance with 15,127 signals from 6 sources.
The oldest company registration in Sidcup dates back to 1922, spanning over 104 years of business history.