4,834 active companies are registered in Sidcup with Companies House. Out of 5,811 companies ever registered here, 547 are no longer active — a 83% survival rate. The area has seen significant recent growth, with 50.1% of active businesses incorporated since 2020. Over half (61%) 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 501 companies. Sidcup is home to 44 FCA-regulated firms and 37 registered charities. Companies here hold 171 government contracts worth £474.1M in total. The average company age is 8.6 years. The earliest company registration in Sidcup dates back to 1922.
Source: Companies House register via UVAGATRON, October 2026
Sidcup is a growth hotspot — over half of its active companies were formed since 2020.
The average active company in Sidcup is 8.6 years old. There are 44 <Link href="/glossary/fca-financial-conduct-authority">FCA-regulated firms</Link> in the area. 37 registered charities operate locally.
Companies in Sidcup have been awarded 171 government contracts with a combined value of £474.1M. See the Top Government Contractors report.
There are 4,834 active companies registered in Sidcup, out of 5,811 total. 547 (9%) are no longer active.
The top industries in Sidcup include Other business support service activities n.e.c. (501 companies), Buying and selling of own real estate (328 companies), Other letting and operating of own or leased real estate (226 companies).
50.1% of currently active companies in Sidcup were incorporated since 2020, indicating strong recent growth.
Our database contains 42,021 data signals across 11 categories for active companies in Sidcup. The largest category is Governance with 20,163 signals from 5 sources.
The oldest company registration in Sidcup dates back to 1922, spanning over 104 years of business history.